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  1. [ 7.588240] Btrfs loaded
  2. [ 7.588619] BTRFS: device fsid 51103755-13ef-46f5-aecb-2dc07a5cd335 devid 1 transid 666088 /dev/sdc2
  3. [ 7.589002] BTRFS info (device sdc2): disk space caching is enabled
  4. [ 7.644638] BTRFS: bdev /dev/sdc2 errs: wr 0, rd 18, flush 0, corrupt 0, gen 0
  5. [ 325.266587] BTRFS info (device sdc2): disk space caching is enabled
  6. [ 325.330201] BTRFS: bdev /dev/sdc2 errs: wr 0, rd 18, flush 0, corrupt 0, gen 0
  7. [ 483.504697] BTRFS: device fsid 5be372f5-5492-4f4b-b641-c14f4ad8ae23 devid 3 transid 152876 /dev/dm-0
  8. [ 484.738395] BTRFS: device fsid 5be372f5-5492-4f4b-b641-c14f4ad8ae23 devid 4 transid 152876 /dev/dm-1
  9. [ 485.543127] BTRFS: device fsid 5be372f5-5492-4f4b-b641-c14f4ad8ae23 devid 2 transid 152876 /dev/dm-2
  10. [ 485.975171] BTRFS: device fsid 5be372f5-5492-4f4b-b641-c14f4ad8ae23 devid 1 transid 152876 /dev/dm-3
  11. [ 487.138963] BTRFS: device fsid 5be372f5-5492-4f4b-b641-c14f4ad8ae23 devid 6 transid 152876 /dev/dm-4
  12. [ 652.637782] BTRFS info (device dm-4): enabling auto defrag
  13. [ 652.637812] BTRFS info (device dm-4): disk space caching is enabled
  14. [ 652.654414] BTRFS: failed to read chunk tree on dm-4
  15. [ 652.673913] BTRFS: open_ctree failed
  16. [ 699.325283] BTRFS info (device dm-4): enabling auto defrag
  17. [ 699.325291] BTRFS info (device dm-4): allowing degraded mounts
  18. [ 699.325294] BTRFS info (device dm-4): disk space caching is enabled
  19. [ 699.342353] BTRFS warning (device dm-4): devid 5 uuid 5289b551-9864-4cea-9f7f-e8c54a16bba0 missing
  20. [ 700.415013] BTRFS: bdev (null) errs: wr 1156915, rd 1123780, flush 0, corrupt 55677, gen 160
  21. [ 761.901761] ------------[ cut here ]------------
  22. [ 761.901778] WARNING: CPU: 0 PID: 5753 at /build/linux-X28llO/linux-4.2.0/fs/btrfs/extent-tree.c:6255 __btrfs_free_extent.isra.69+0x880/0xd20 [btrfs]()
  23. [ 761.901780] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  24. [ 761.901811] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  25. [ 761.901817] CPU: 0 PID: 5753 Comm: mount Not tainted 4.2.0-12-generic #14-Ubuntu
  26. [ 761.901819] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  27. [ 761.901820] ffffffffc03b83a8 ffff8801d3ddb5d8 ffffffff817b0cd5 0000000000000000
  28. [ 761.901822] 0000000000000000 ffff8801d3ddb618 ffffffff81076536 000008ff4ccd2000
  29. [ 761.901823] 00000000fffffffe 000008ff4ccef000 00000b15cdf10000 ffff8800b2f74000
  30. [ 761.901825] Call Trace:
  31. [ 761.901830] [<ffffffff817b0cd5>] dump_stack+0x45/0x57
  32. [ 761.901834] [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
  33. [ 761.901836] [<ffffffff8107662a>] warn_slowpath_null+0x1a/0x20
  34. [ 761.901841] [<ffffffffc031e660>] __btrfs_free_extent.isra.69+0x880/0xd20 [btrfs]
  35. [ 761.901848] [<ffffffffc0321f18>] __btrfs_run_delayed_refs+0x5e8/0x1050 [btrfs]
  36. [ 761.901853] [<ffffffffc031a980>] ? add_pinned_bytes+0x70/0x80 [btrfs]
  37. [ 761.901859] [<ffffffffc0323087>] ? walk_up_proc+0xd7/0x4a0 [btrfs]
  38. [ 761.901864] [<ffffffffc03255be>] btrfs_run_delayed_refs.part.73+0x6e/0x270 [btrfs]
  39. [ 761.901870] [<ffffffffc03257d5>] btrfs_run_delayed_refs+0x15/0x20 [btrfs]
  40. [ 761.901877] [<ffffffffc033938a>] btrfs_should_end_transaction+0x5a/0x60 [btrfs]
  41. [ 761.901883] [<ffffffffc0323dad>] btrfs_drop_snapshot+0x43d/0x820 [btrfs]
  42. [ 761.901893] [<ffffffffc038c3c2>] merge_reloc_roots+0xd2/0x240 [btrfs]
  43. [ 761.901901] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  44. [ 761.901908] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  45. [ 761.901912] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  46. [ 761.901916] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  47. [ 761.901919] [<ffffffff811f1078>] mount_fs+0x38/0x160
  48. [ 761.901921] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  49. [ 761.901924] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  50. [ 761.901928] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  51. [ 761.901930] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  52. [ 761.901932] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  53. [ 761.901934] [<ffffffff811f1078>] mount_fs+0x38/0x160
  54. [ 761.901935] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  55. [ 761.901937] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  56. [ 761.901939] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  57. [ 761.901941] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  58. [ 761.901943] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  59. [ 761.901945] ---[ end trace 5b4054bf68eb31fd ]---
  60. [ 761.901947] BTRFS info (device dm-4): leaf 7982127267840 total ptrs 178 free space 2946
  61. [ 761.901949] item 0 key (9892598312960 168 122880) itemoff 16246 itemsize 37
  62. [ 761.901950] extent refs 1 gen 113569 flags 1
  63. [ 761.901950] shared data backref parent 8398162657280 count 1
  64. [ 761.901952] item 1 key (9892598435840 168 122880) itemoff 16196 itemsize 50
  65. [ 761.901952] extent refs 2 gen 113569 flags 1
  66. [ 761.901953] shared data backref parent 12188277342208 count 1
  67. [ 761.901954] shared data backref parent 8398162657280 count 1
  68. [ 761.901955] item 2 key (9892598558720 168 122880) itemoff 16146 itemsize 50
  69. [ 761.901956] extent refs 2 gen 113569 flags 1
  70. [ 761.901956] shared data backref parent 12188277342208 count 1
  71. [ 761.901957] shared data backref parent 8398162657280 count 1
  72. [ 761.901958] item 3 key (9892598681600 168 114688) itemoff 16096 itemsize 50
  73. [ 761.901959] extent refs 2 gen 113569 flags 1
  74. [ 761.901959] shared data backref parent 12188277342208 count 1
  75. [ 761.901960] shared data backref parent 8398162657280 count 1
  76. [ 761.901961] item 4 key (9892598796288 168 114688) itemoff 16046 itemsize 50
  77. [ 761.901962] extent refs 2 gen 113569 flags 1
  78. [ 761.901962] shared data backref parent 12188277342208 count 1
  79. [ 761.901963] shared data backref parent 8398162657280 count 1
  80. [ 761.901964] item 5 key (9892598910976 168 122880) itemoff 15996 itemsize 50
  81. [ 761.901965] extent refs 2 gen 113569 flags 1
  82. [ 761.901965] shared data backref parent 12188277342208 count 1
  83. [ 761.901966] shared data backref parent 8398162657280 count 1
  84. [ 761.901967] item 6 key (9892599033856 168 118784) itemoff 15946 itemsize 50
  85. [ 761.901968] extent refs 2 gen 113569 flags 1
  86. [ 761.901968] shared data backref parent 12188277342208 count 1
  87. [ 761.901969] shared data backref parent 8398162657280 count 1
  88. [ 761.901970] item 7 key (9892599152640 168 106496) itemoff 15896 itemsize 50
  89. [ 761.901971] extent refs 2 gen 113569 flags 1
  90. [ 761.901971] shared data backref parent 12188277342208 count 1
  91. [ 761.901972] shared data backref parent 8398162657280 count 1
  92. [ 761.901973] item 8 key (9892599259136 168 102400) itemoff 15846 itemsize 50
  93. [ 761.901974] extent refs 2 gen 113569 flags 1
  94. [ 761.901974] shared data backref parent 12188277342208 count 1
  95. [ 761.901975] shared data backref parent 8398162657280 count 1
  96. [ 761.901976] item 9 key (9892599361536 168 94208) itemoff 15796 itemsize 50
  97. [ 761.901977] extent refs 2 gen 113569 flags 1
  98. [ 761.901977] shared data backref parent 12188277342208 count 1
  99. [ 761.901978] shared data backref parent 8398162657280 count 1
  100. [ 761.901979] item 10 key (9892599455744 168 20480) itemoff 15746 itemsize 50
  101. [ 761.901980] extent refs 2 gen 113569 flags 1
  102. [ 761.901981] shared data backref parent 12188277342208 count 1
  103. [ 761.901981] shared data backref parent 8398162657280 count 1
  104. [ 761.901982] item 11 key (9892599476224 168 110592) itemoff 15696 itemsize 50
  105. [ 761.901983] extent refs 2 gen 113569 flags 1
  106. [ 761.901984] shared data backref parent 12188277342208 count 1
  107. [ 761.901984] shared data backref parent 8398162657280 count 1
  108. [ 761.901985] item 12 key (9892599586816 168 102400) itemoff 15646 itemsize 50
  109. [ 761.901986] extent refs 2 gen 113569 flags 1
  110. [ 761.901987] shared data backref parent 12188277342208 count 1
  111. [ 761.901987] shared data backref parent 8398162657280 count 1
  112. [ 761.901988] item 13 key (9892599689216 168 118784) itemoff 15596 itemsize 50
  113. [ 761.901989] extent refs 2 gen 113569 flags 1
  114. [ 761.901990] shared data backref parent 12188277342208 count 1
  115. [ 761.901990] shared data backref parent 8398162657280 count 1
  116. [ 761.901991] item 14 key (9892599808000 168 122880) itemoff 15546 itemsize 50
  117. [ 761.901992] extent refs 2 gen 113569 flags 1
  118. [ 761.901993] shared data backref parent 12188277342208 count 1
  119. [ 761.901993] shared data backref parent 8398162657280 count 1
  120. [ 761.901994] item 15 key (9892599930880 168 122880) itemoff 15496 itemsize 50
  121. [ 761.901995] extent refs 2 gen 113569 flags 1
  122. [ 761.901996] shared data backref parent 12188277342208 count 1
  123. [ 761.901996] shared data backref parent 8398162657280 count 1
  124. [ 761.901997] item 16 key (9892600053760 168 122880) itemoff 15446 itemsize 50
  125. [ 761.901998] extent refs 2 gen 113569 flags 1
  126. [ 761.901999] shared data backref parent 12188277342208 count 1
  127. [ 761.901999] shared data backref parent 8398162657280 count 1
  128. [ 761.902000] item 17 key (9892600176640 168 118784) itemoff 15396 itemsize 50
  129. [ 761.902001] extent refs 2 gen 113569 flags 1
  130. [ 761.902002] shared data backref parent 12188277342208 count 1
  131. [ 761.902002] shared data backref parent 8398162657280 count 1
  132. [ 761.902003] item 18 key (9892600295424 168 114688) itemoff 15346 itemsize 50
  133. [ 761.902004] extent refs 2 gen 113569 flags 1
  134. [ 761.902004] shared data backref parent 12188277342208 count 1
  135. [ 761.902005] shared data backref parent 8398162657280 count 1
  136. [ 761.902006] item 19 key (9892600410112 168 122880) itemoff 15296 itemsize 50
  137. [ 761.902007] extent refs 2 gen 113569 flags 1
  138. [ 761.902007] shared data backref parent 12188277342208 count 1
  139. [ 761.902008] shared data backref parent 8398162657280 count 1
  140. [ 761.902009] item 20 key (9892600532992 168 118784) itemoff 15246 itemsize 50
  141. [ 761.902010] extent refs 2 gen 113569 flags 1
  142. [ 761.902010] shared data backref parent 12188277342208 count 1
  143. [ 761.902011] shared data backref parent 8398162657280 count 1
  144. [ 761.902012] item 21 key (9892600651776 168 122880) itemoff 15196 itemsize 50
  145. [ 761.902013] extent refs 2 gen 113569 flags 1
  146. [ 761.902013] shared data backref parent 12188277342208 count 1
  147. [ 761.902014] shared data backref parent 8398162657280 count 1
  148. [ 761.902015] item 22 key (9892600774656 168 122880) itemoff 15146 itemsize 50
  149. [ 761.902016] extent refs 2 gen 113569 flags 1
  150. [ 761.902016] shared data backref parent 12188277342208 count 1
  151. [ 761.902017] shared data backref parent 8398162657280 count 1
  152. [ 761.902018] item 23 key (9892600897536 168 110592) itemoff 15096 itemsize 50
  153. [ 761.902019] extent refs 2 gen 113569 flags 1
  154. [ 761.902019] shared data backref parent 12188277342208 count 1
  155. [ 761.902020] shared data backref parent 8398162657280 count 1
  156. [ 761.902021] item 24 key (9892601008128 168 122880) itemoff 15046 itemsize 50
  157. [ 761.902022] extent refs 2 gen 113569 flags 1
  158. [ 761.902022] shared data backref parent 12188277342208 count 1
  159. [ 761.902023] shared data backref parent 8398162657280 count 1
  160. [ 761.902024] item 25 key (9892601131008 168 118784) itemoff 14996 itemsize 50
  161. [ 761.902025] extent refs 2 gen 113569 flags 1
  162. [ 761.902025] shared data backref parent 12188284174336 count 1
  163. [ 761.902026] shared data backref parent 8398163181568 count 1
  164. [ 761.902027] item 26 key (9892601249792 168 118784) itemoff 14946 itemsize 50
  165. [ 761.902028] extent refs 2 gen 113569 flags 1
  166. [ 761.902028] shared data backref parent 12188284174336 count 1
  167. [ 761.902029] shared data backref parent 8398163181568 count 1
  168. [ 761.902030] item 27 key (9892601368576 168 118784) itemoff 14896 itemsize 50
  169. [ 761.902031] extent refs 2 gen 113569 flags 1
  170. [ 761.902031] shared data backref parent 12188284174336 count 1
  171. [ 761.902032] shared data backref parent 8398163181568 count 1
  172. [ 761.902033] item 28 key (9892601487360 168 114688) itemoff 14846 itemsize 50
  173. [ 761.902034] extent refs 2 gen 113569 flags 1
  174. [ 761.902034] shared data backref parent 12188284174336 count 1
  175. [ 761.902035] shared data backref parent 8398163181568 count 1
  176. [ 761.902036] item 29 key (9892601602048 168 110592) itemoff 14796 itemsize 50
  177. [ 761.902037] extent refs 2 gen 113569 flags 1
  178. [ 761.902037] shared data backref parent 12188284174336 count 1
  179. [ 761.902038] shared data backref parent 8398163181568 count 1
  180. [ 761.902039] item 30 key (9892601712640 168 118784) itemoff 14746 itemsize 50
  181. [ 761.902040] extent refs 2 gen 113569 flags 1
  182. [ 761.902040] shared data backref parent 12188284174336 count 1
  183. [ 761.902041] shared data backref parent 8398163181568 count 1
  184. [ 761.902042] item 31 key (9892601831424 168 118784) itemoff 14696 itemsize 50
  185. [ 761.902043] extent refs 2 gen 113569 flags 1
  186. [ 761.902043] shared data backref parent 12188284174336 count 1
  187. [ 761.902044] shared data backref parent 8398163181568 count 1
  188. [ 761.902045] item 32 key (9892601950208 168 114688) itemoff 14646 itemsize 50
  189. [ 761.902046] extent refs 2 gen 113569 flags 1
  190. [ 761.902046] shared data backref parent 12188284174336 count 1
  191. [ 761.902047] shared data backref parent 8398163181568 count 1
  192. [ 761.902048] item 33 key (9892602064896 168 118784) itemoff 14596 itemsize 50
  193. [ 761.902049] extent refs 2 gen 113569 flags 1
  194. [ 761.902049] shared data backref parent 12188284174336 count 1
  195. [ 761.902050] shared data backref parent 8398163181568 count 1
  196. [ 761.902051] item 34 key (9892602183680 168 110592) itemoff 14546 itemsize 50
  197. [ 761.902052] extent refs 2 gen 113569 flags 1
  198. [ 761.902052] shared data backref parent 12188284174336 count 1
  199. [ 761.902053] shared data backref parent 8398163181568 count 1
  200. [ 761.902054] item 35 key (9892602294272 168 122880) itemoff 14496 itemsize 50
  201. [ 761.902054] extent refs 2 gen 113569 flags 1
  202. [ 761.902055] shared data backref parent 12188284174336 count 1
  203. [ 761.902056] shared data backref parent 8398163181568 count 1
  204. [ 761.902057] item 36 key (9892602417152 168 122880) itemoff 14446 itemsize 50
  205. [ 761.902057] extent refs 2 gen 113569 flags 1
  206. [ 761.902058] shared data backref parent 12188284174336 count 1
  207. [ 761.902059] shared data backref parent 8398163181568 count 1
  208. [ 761.902060] item 37 key (9892602540032 168 118784) itemoff 14396 itemsize 50
  209. [ 761.902060] extent refs 2 gen 113569 flags 1
  210. [ 761.902061] shared data backref parent 12188284174336 count 1
  211. [ 761.902062] shared data backref parent 8398163181568 count 1
  212. [ 761.902063] item 38 key (9892602658816 168 118784) itemoff 14346 itemsize 50
  213. [ 761.902063] extent refs 2 gen 113569 flags 1
  214. [ 761.902064] shared data backref parent 12188284174336 count 1
  215. [ 761.902065] shared data backref parent 8398163181568 count 1
  216. [ 761.902066] item 39 key (9892602777600 168 114688) itemoff 14296 itemsize 50
  217. [ 761.902066] extent refs 2 gen 113569 flags 1
  218. [ 761.902067] shared data backref parent 12188284174336 count 1
  219. [ 761.902068] shared data backref parent 8398163181568 count 1
  220. [ 761.902069] item 40 key (9892602892288 168 114688) itemoff 14246 itemsize 50
  221. [ 761.902069] extent refs 2 gen 113569 flags 1
  222. [ 761.902070] shared data backref parent 12188284174336 count 1
  223. [ 761.902071] shared data backref parent 8398163181568 count 1
  224. [ 761.902072] item 41 key (9892603006976 168 122880) itemoff 14196 itemsize 50
  225. [ 761.902072] extent refs 2 gen 113569 flags 1
  226. [ 761.902073] shared data backref parent 12188284174336 count 1
  227. [ 761.902074] shared data backref parent 8398163181568 count 1
  228. [ 761.902075] item 42 key (9892603129856 168 114688) itemoff 14146 itemsize 50
  229. [ 761.902075] extent refs 2 gen 113569 flags 1
  230. [ 761.902076] shared data backref parent 12188284174336 count 1
  231. [ 761.902077] shared data backref parent 8398163181568 count 1
  232. [ 761.902078] item 43 key (9892603244544 168 106496) itemoff 14096 itemsize 50
  233. [ 761.902078] extent refs 2 gen 113569 flags 1
  234. [ 761.902079] shared data backref parent 12188284174336 count 1
  235. [ 761.902080] shared data backref parent 8398163181568 count 1
  236. [ 761.902081] item 44 key (9892603351040 168 106496) itemoff 14046 itemsize 50
  237. [ 761.902081] extent refs 2 gen 113569 flags 1
  238. [ 761.902082] shared data backref parent 12188284174336 count 1
  239. [ 761.902083] shared data backref parent 8398163181568 count 1
  240. [ 761.902084] item 45 key (9892603457536 168 106496) itemoff 13996 itemsize 50
  241. [ 761.902084] extent refs 2 gen 113569 flags 1
  242. [ 761.902085] shared data backref parent 12188284174336 count 1
  243. [ 761.902086] shared data backref parent 8398163181568 count 1
  244. [ 761.902087] item 46 key (9892603564032 168 98304) itemoff 13946 itemsize 50
  245. [ 761.902087] extent refs 2 gen 113569 flags 1
  246. [ 761.902088] shared data backref parent 12188284174336 count 1
  247. [ 761.902089] shared data backref parent 8398163181568 count 1
  248. [ 761.902090] item 47 key (9892603662336 168 90112) itemoff 13896 itemsize 50
  249. [ 761.902090] extent refs 2 gen 113569 flags 1
  250. [ 761.902091] shared data backref parent 12188284174336 count 1
  251. [ 761.902092] shared data backref parent 8398163181568 count 1
  252. [ 761.902093] item 48 key (9892603752448 168 90112) itemoff 13846 itemsize 50
  253. [ 761.902093] extent refs 2 gen 113569 flags 1
  254. [ 761.902094] shared data backref parent 12188284174336 count 1
  255. [ 761.902095] shared data backref parent 8398163181568 count 1
  256. [ 761.902096] item 49 key (9892603842560 168 8192) itemoff 13796 itemsize 50
  257. [ 761.902096] extent refs 2 gen 113569 flags 1
  258. [ 761.902097] shared data backref parent 12188284174336 count 1
  259. [ 761.902098] shared data backref parent 8398163181568 count 1
  260. [ 761.902099] item 50 key (9892603850752 168 102400) itemoff 13746 itemsize 50
  261. [ 761.902099] extent refs 2 gen 113569 flags 1
  262. [ 761.902100] shared data backref parent 12188284174336 count 1
  263. [ 761.902101] shared data backref parent 8398163181568 count 1
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  570. [ 761.902330] shared data backref parent 12188284174336 count 1
  571. [ 761.902331] shared data backref parent 8398163181568 count 1
  572. [ 761.902332] item 128 key (9892612792320 168 118784) itemoff 9846 itemsize 50
  573. [ 761.902333] extent refs 2 gen 113569 flags 1
  574. [ 761.902333] shared data backref parent 12188284174336 count 1
  575. [ 761.902334] shared data backref parent 8398163181568 count 1
  576. [ 761.902335] item 129 key (9892612911104 168 122880) itemoff 9796 itemsize 50
  577. [ 761.902336] extent refs 2 gen 113569 flags 1
  578. [ 761.902336] shared data backref parent 12188284174336 count 1
  579. [ 761.902337] shared data backref parent 8398163181568 count 1
  580. [ 761.902338] item 130 key (9892613033984 168 114688) itemoff 9746 itemsize 50
  581. [ 761.902339] extent refs 2 gen 113569 flags 1
  582. [ 761.902339] shared data backref parent 12188284174336 count 1
  583. [ 761.902340] shared data backref parent 8398163181568 count 1
  584. [ 761.902341] item 131 key (9892613148672 168 110592) itemoff 9696 itemsize 50
  585. [ 761.902342] extent refs 2 gen 113569 flags 1
  586. [ 761.902342] shared data backref parent 12188284174336 count 1
  587. [ 761.902343] shared data backref parent 8398163181568 count 1
  588. [ 761.902344] item 132 key (9892613259264 168 114688) itemoff 9646 itemsize 50
  589. [ 761.902345] extent refs 2 gen 113569 flags 1
  590. [ 761.902345] shared data backref parent 12188284174336 count 1
  591. [ 761.902346] shared data backref parent 8398163181568 count 1
  592. [ 761.902347] item 133 key (9892613373952 168 118784) itemoff 9596 itemsize 50
  593. [ 761.902348] extent refs 2 gen 113569 flags 1
  594. [ 761.902348] shared data backref parent 12188284174336 count 1
  595. [ 761.902349] shared data backref parent 8398163181568 count 1
  596. [ 761.902350] item 134 key (9892613492736 168 122880) itemoff 9546 itemsize 50
  597. [ 761.902351] extent refs 2 gen 113569 flags 1
  598. [ 761.902351] shared data backref parent 12188284174336 count 1
  599. [ 761.902352] shared data backref parent 8398163181568 count 1
  600. [ 761.902353] item 135 key (9892613615616 168 114688) itemoff 9496 itemsize 50
  601. [ 761.902354] extent refs 2 gen 113569 flags 1
  602. [ 761.902354] shared data backref parent 12188284174336 count 1
  603. [ 761.902355] shared data backref parent 8398163181568 count 1
  604. [ 761.902356] item 136 key (9892613730304 168 114688) itemoff 9446 itemsize 50
  605. [ 761.902357] extent refs 2 gen 113569 flags 1
  606. [ 761.902357] shared data backref parent 12188284174336 count 1
  607. [ 761.902358] shared data backref parent 8398163181568 count 1
  608. [ 761.902359] item 137 key (9892613844992 168 106496) itemoff 9396 itemsize 50
  609. [ 761.902360] extent refs 2 gen 113569 flags 1
  610. [ 761.902360] shared data backref parent 12188284174336 count 1
  611. [ 761.902361] shared data backref parent 8398163181568 count 1
  612. [ 761.902362] item 138 key (9892613951488 168 118784) itemoff 9346 itemsize 50
  613. [ 761.902363] extent refs 2 gen 113569 flags 1
  614. [ 761.902363] shared data backref parent 12188284174336 count 1
  615. [ 761.902364] shared data backref parent 8398163181568 count 1
  616. [ 761.902365] item 139 key (9892614070272 168 118784) itemoff 9296 itemsize 50
  617. [ 761.902365] extent refs 2 gen 113569 flags 1
  618. [ 761.902366] shared data backref parent 12188284174336 count 1
  619. [ 761.902367] shared data backref parent 8398163181568 count 1
  620. [ 761.902368] item 140 key (9892614189056 168 118784) itemoff 9246 itemsize 50
  621. [ 761.902368] extent refs 2 gen 113569 flags 1
  622. [ 761.902369] shared data backref parent 12188284174336 count 1
  623. [ 761.902370] shared data backref parent 8398163181568 count 1
  624. [ 761.902371] item 141 key (9892614307840 168 114688) itemoff 9196 itemsize 50
  625. [ 761.902371] extent refs 2 gen 113569 flags 1
  626. [ 761.902372] shared data backref parent 12188284174336 count 1
  627. [ 761.902373] shared data backref parent 8398163181568 count 1
  628. [ 761.902374] item 142 key (9892614422528 168 106496) itemoff 9146 itemsize 50
  629. [ 761.902374] extent refs 2 gen 113569 flags 1
  630. [ 761.902375] shared data backref parent 12188284174336 count 1
  631. [ 761.902376] shared data backref parent 8398163181568 count 1
  632. [ 761.902377] item 143 key (9892614529024 168 114688) itemoff 9096 itemsize 50
  633. [ 761.902377] extent refs 2 gen 113569 flags 1
  634. [ 761.902378] shared data backref parent 12188284174336 count 1
  635. [ 761.902379] shared data backref parent 8398163181568 count 1
  636. [ 761.902380] item 144 key (9892614643712 168 114688) itemoff 9046 itemsize 50
  637. [ 761.902380] extent refs 2 gen 113569 flags 1
  638. [ 761.902381] shared data backref parent 12188284174336 count 1
  639. [ 761.902382] shared data backref parent 8398163181568 count 1
  640. [ 761.902383] item 145 key (9892614758400 168 122880) itemoff 8996 itemsize 50
  641. [ 761.902383] extent refs 2 gen 113569 flags 1
  642. [ 761.902384] shared data backref parent 12188284174336 count 1
  643. [ 761.902385] shared data backref parent 8398163181568 count 1
  644. [ 761.902386] item 146 key (9892614881280 168 114688) itemoff 8946 itemsize 50
  645. [ 761.902386] extent refs 2 gen 113569 flags 1
  646. [ 761.902387] shared data backref parent 12188284174336 count 1
  647. [ 761.902388] shared data backref parent 8398163181568 count 1
  648. [ 761.902389] item 147 key (9892614995968 168 118784) itemoff 8896 itemsize 50
  649. [ 761.902389] extent refs 2 gen 113569 flags 1
  650. [ 761.902390] shared data backref parent 12188284174336 count 1
  651. [ 761.902391] shared data backref parent 8398163181568 count 1
  652. [ 761.902392] item 148 key (9892615114752 168 118784) itemoff 8846 itemsize 50
  653. [ 761.902392] extent refs 2 gen 113569 flags 1
  654. [ 761.902393] shared data backref parent 12188284174336 count 1
  655. [ 761.902394] shared data backref parent 8398163181568 count 1
  656. [ 761.902395] item 149 key (9892615233536 168 118784) itemoff 8796 itemsize 50
  657. [ 761.902395] extent refs 2 gen 113569 flags 1
  658. [ 761.902396] shared data backref parent 12188284174336 count 1
  659. [ 761.902397] shared data backref parent 8398163181568 count 1
  660. [ 761.902398] item 150 key (9892615352320 168 114688) itemoff 8746 itemsize 50
  661. [ 761.902398] extent refs 2 gen 113569 flags 1
  662. [ 761.902399] shared data backref parent 12188284174336 count 1
  663. [ 761.902400] shared data backref parent 8398163181568 count 1
  664. [ 761.902401] item 151 key (9892615467008 168 118784) itemoff 8696 itemsize 50
  665. [ 761.902401] extent refs 2 gen 113569 flags 1
  666. [ 761.902402] shared data backref parent 12188284174336 count 1
  667. [ 761.902403] shared data backref parent 8398163181568 count 1
  668. [ 761.902404] item 152 key (9892615585792 168 114688) itemoff 8646 itemsize 50
  669. [ 761.902404] extent refs 2 gen 113569 flags 1
  670. [ 761.902405] shared data backref parent 12188284174336 count 1
  671. [ 761.902406] shared data backref parent 8398163181568 count 1
  672. [ 761.902407] item 153 key (9892615700480 168 110592) itemoff 8596 itemsize 50
  673. [ 761.902407] extent refs 2 gen 113569 flags 1
  674. [ 761.902408] shared data backref parent 12188284174336 count 1
  675. [ 761.902409] shared data backref parent 8398163181568 count 1
  676. [ 761.902410] item 154 key (9892615811072 168 114688) itemoff 8546 itemsize 50
  677. [ 761.902410] extent refs 2 gen 113569 flags 1
  678. [ 761.902411] shared data backref parent 12188284174336 count 1
  679. [ 761.902412] shared data backref parent 8398163181568 count 1
  680. [ 761.902412] item 155 key (9892615925760 168 118784) itemoff 8496 itemsize 50
  681. [ 761.902413] extent refs 2 gen 113569 flags 1
  682. [ 761.902414] shared data backref parent 12188284174336 count 1
  683. [ 761.902415] shared data backref parent 8398163181568 count 1
  684. [ 761.902415] item 156 key (9892616044544 168 122880) itemoff 8446 itemsize 50
  685. [ 761.902416] extent refs 2 gen 113569 flags 1
  686. [ 761.902417] shared data backref parent 12188284174336 count 1
  687. [ 761.902418] shared data backref parent 8398163181568 count 1
  688. [ 761.902418] item 157 key (9892616167424 168 114688) itemoff 8396 itemsize 50
  689. [ 761.902419] extent refs 2 gen 113569 flags 1
  690. [ 761.902420] shared data backref parent 12188284174336 count 1
  691. [ 761.902421] shared data backref parent 8398163181568 count 1
  692. [ 761.902421] item 158 key (9892616282112 168 110592) itemoff 8346 itemsize 50
  693. [ 761.902422] extent refs 2 gen 113569 flags 1
  694. [ 761.902423] shared data backref parent 12188284174336 count 1
  695. [ 761.902424] shared data backref parent 8398163181568 count 1
  696. [ 761.902425] item 159 key (9892616392704 168 110592) itemoff 8296 itemsize 50
  697. [ 761.902425] extent refs 2 gen 113569 flags 1
  698. [ 761.902426] shared data backref parent 12188284174336 count 1
  699. [ 761.902427] shared data backref parent 8398163181568 count 1
  700. [ 761.902428] item 160 key (9892616503296 168 118784) itemoff 8246 itemsize 50
  701. [ 761.902428] extent refs 2 gen 113569 flags 1
  702. [ 761.902429] shared data backref parent 12188284174336 count 1
  703. [ 761.902430] shared data backref parent 8398163181568 count 1
  704. [ 761.902431] item 161 key (9892616622080 168 118784) itemoff 8196 itemsize 50
  705. [ 761.902431] extent refs 2 gen 113569 flags 1
  706. [ 761.902432] shared data backref parent 12188284174336 count 1
  707. [ 761.902433] shared data backref parent 8398163181568 count 1
  708. [ 761.902434] item 162 key (9892616740864 168 118784) itemoff 8146 itemsize 50
  709. [ 761.902434] extent refs 2 gen 113569 flags 1
  710. [ 761.902435] shared data backref parent 12188284174336 count 1
  711. [ 761.902436] shared data backref parent 8398163181568 count 1
  712. [ 761.902437] item 163 key (9892616859648 168 114688) itemoff 8096 itemsize 50
  713. [ 761.902437] extent refs 2 gen 113569 flags 1
  714. [ 761.902438] shared data backref parent 12188284174336 count 1
  715. [ 761.902439] shared data backref parent 8398163181568 count 1
  716. [ 761.902440] item 164 key (9892616974336 168 110592) itemoff 8046 itemsize 50
  717. [ 761.902440] extent refs 2 gen 113569 flags 1
  718. [ 761.902441] shared data backref parent 12188284174336 count 1
  719. [ 761.902442] shared data backref parent 8398163181568 count 1
  720. [ 761.902443] item 165 key (9892617084928 168 118784) itemoff 7996 itemsize 50
  721. [ 761.902443] extent refs 2 gen 113569 flags 1
  722. [ 761.902444] shared data backref parent 12188284174336 count 1
  723. [ 761.902445] shared data backref parent 8398163181568 count 1
  724. [ 761.902446] item 166 key (9892617203712 168 118784) itemoff 7946 itemsize 50
  725. [ 761.902446] extent refs 2 gen 113569 flags 1
  726. [ 761.902447] shared data backref parent 12188284174336 count 1
  727. [ 761.902448] shared data backref parent 8398163181568 count 1
  728. [ 761.902449] item 167 key (9892617322496 168 118784) itemoff 7896 itemsize 50
  729. [ 761.902449] extent refs 2 gen 113569 flags 1
  730. [ 761.902450] shared data backref parent 12188284174336 count 1
  731. [ 761.902451] shared data backref parent 8398163181568 count 1
  732. [ 761.902452] item 168 key (9892617441280 168 118784) itemoff 7846 itemsize 50
  733. [ 761.902452] extent refs 2 gen 113569 flags 1
  734. [ 761.902453] shared data backref parent 12188284174336 count 1
  735. [ 761.902454] shared data backref parent 8398163181568 count 1
  736. [ 761.902455] item 169 key (9892617560064 168 118784) itemoff 7796 itemsize 50
  737. [ 761.902455] extent refs 2 gen 113569 flags 1
  738. [ 761.902456] shared data backref parent 12188284174336 count 1
  739. [ 761.902457] shared data backref parent 8398163181568 count 1
  740. [ 761.902458] item 170 key (9892617678848 168 118784) itemoff 7746 itemsize 50
  741. [ 761.902458] extent refs 2 gen 113569 flags 1
  742. [ 761.902459] shared data backref parent 12188284174336 count 1
  743. [ 761.902460] shared data backref parent 8398163181568 count 1
  744. [ 761.902461] item 171 key (9892617797632 168 122880) itemoff 7696 itemsize 50
  745. [ 761.902461] extent refs 2 gen 113569 flags 1
  746. [ 761.902462] shared data backref parent 12188284174336 count 1
  747. [ 761.902463] shared data backref parent 8398163181568 count 1
  748. [ 761.902463] item 172 key (9892617920512 168 118784) itemoff 7646 itemsize 50
  749. [ 761.902464] extent refs 2 gen 113569 flags 1
  750. [ 761.902465] shared data backref parent 12188284174336 count 1
  751. [ 761.902466] shared data backref parent 8398163181568 count 1
  752. [ 761.902466] item 173 key (9892618039296 168 118784) itemoff 7596 itemsize 50
  753. [ 761.902467] extent refs 2 gen 113569 flags 1
  754. [ 761.902468] shared data backref parent 12188284174336 count 1
  755. [ 761.902469] shared data backref parent 8398163181568 count 1
  756. [ 761.902469] item 174 key (9892618158080 168 114688) itemoff 7546 itemsize 50
  757. [ 761.902470] extent refs 2 gen 113569 flags 1
  758. [ 761.902471] shared data backref parent 12188284174336 count 1
  759. [ 761.902472] shared data backref parent 8398163181568 count 1
  760. [ 761.902472] item 175 key (9892618272768 168 110592) itemoff 7496 itemsize 50
  761. [ 761.902473] extent refs 2 gen 113569 flags 1
  762. [ 761.902474] shared data backref parent 12188284174336 count 1
  763. [ 761.902475] shared data backref parent 8398163181568 count 1
  764. [ 761.902475] item 176 key (9892618383360 168 118784) itemoff 7446 itemsize 50
  765. [ 761.902476] extent refs 2 gen 113569 flags 1
  766. [ 761.902477] shared data backref parent 12188284174336 count 1
  767. [ 761.902477] shared data backref parent 8398163181568 count 1
  768. [ 761.902478] item 177 key (9892618502144 168 118784) itemoff 7396 itemsize 50
  769. [ 761.902479] extent refs 2 gen 113569 flags 1
  770. [ 761.902480] shared data backref parent 12188284174336 count 1
  771. [ 761.902480] shared data backref parent 8398163181568 count 1
  772. [ 761.902482] BTRFS error (device dm-4): unable to find ref byte nr 9892598312960 parent 12188277342208 root 2808 owner 608820 offset 6815744
  773. [ 761.902483] ------------[ cut here ]------------
  774. [ 761.902489] WARNING: CPU: 0 PID: 5753 at /build/linux-X28llO/linux-4.2.0/fs/btrfs/extent-tree.c:6261 __btrfs_free_extent.isra.69+0x8e7/0xd20 [btrfs]()
  775. [ 761.902490] BTRFS: Transaction aborted (error -2)
  776. [ 761.902490] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  777. [ 761.902512] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  778. [ 761.902516] CPU: 0 PID: 5753 Comm: mount Tainted: G W 4.2.0-12-generic #14-Ubuntu
  779. [ 761.902517] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  780. [ 761.902518] ffffffffc03b83a8 ffff8801d3ddb588 ffffffff817b0cd5 0000000000000000
  781. [ 761.902519] ffff8801d3ddb5d8 ffff8801d3ddb5c8 ffffffff81076536 ffff8801d3ddb5c0
  782. [ 761.902521] 00000000fffffffe 000008ff4ccef000 00000b15cdf10000 ffff8800b2f74000
  783. [ 761.902522] Call Trace:
  784. [ 761.902524] [<ffffffff817b0cd5>] dump_stack+0x45/0x57
  785. [ 761.902526] [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
  786. [ 761.902528] [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50
  787. [ 761.902533] [<ffffffffc031e6c7>] __btrfs_free_extent.isra.69+0x8e7/0xd20 [btrfs]
  788. [ 761.902539] [<ffffffffc0321f18>] __btrfs_run_delayed_refs+0x5e8/0x1050 [btrfs]
  789. [ 761.902544] [<ffffffffc031a980>] ? add_pinned_bytes+0x70/0x80 [btrfs]
  790. [ 761.902549] [<ffffffffc0323087>] ? walk_up_proc+0xd7/0x4a0 [btrfs]
  791. [ 761.902555] [<ffffffffc03255be>] btrfs_run_delayed_refs.part.73+0x6e/0x270 [btrfs]
  792. [ 761.902560] [<ffffffffc03257d5>] btrfs_run_delayed_refs+0x15/0x20 [btrfs]
  793. [ 761.902566] [<ffffffffc033938a>] btrfs_should_end_transaction+0x5a/0x60 [btrfs]
  794. [ 761.902572] [<ffffffffc0323dad>] btrfs_drop_snapshot+0x43d/0x820 [btrfs]
  795. [ 761.902580] [<ffffffffc038c3c2>] merge_reloc_roots+0xd2/0x240 [btrfs]
  796. [ 761.902587] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  797. [ 761.902594] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  798. [ 761.902598] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  799. [ 761.902600] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  800. [ 761.902602] [<ffffffff811f1078>] mount_fs+0x38/0x160
  801. [ 761.902604] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  802. [ 761.902606] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  803. [ 761.902610] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  804. [ 761.902612] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  805. [ 761.902614] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  806. [ 761.902616] [<ffffffff811f1078>] mount_fs+0x38/0x160
  807. [ 761.902617] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  808. [ 761.902619] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  809. [ 761.902621] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  810. [ 761.902623] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  811. [ 761.902625] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  812. [ 761.902626] ---[ end trace 5b4054bf68eb31fe ]---
  813. [ 761.902628] BTRFS: error (device dm-4) in __btrfs_free_extent:6261: errno=-2 No such entry
  814. [ 761.902630] BTRFS: error (device dm-4) in btrfs_run_delayed_refs:2781: errno=-2 No such entry
  815. [ 761.902657] BTRFS: error (device dm-4) in btrfs_drop_snapshot:8602: errno=-30 Readonly filesystem
  816. [ 761.902659] BTRFS: error (device dm-4) in merge_reloc_roots:2421: errno=-30 Readonly filesystem
  817. [ 761.908017] pending csums is 2818048
  818. [ 787.670806] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  819. [ 787.670808] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  820. [ 787.670860] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  821. [ 787.670865] CPU: 0 PID: 5753 Comm: mount Tainted: G W 4.2.0-12-generic #14-Ubuntu
  822. [ 787.670866] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  823. [ 787.670867] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  824. [ 787.670868] RIP: 0010:[<ffffffffc0385e30>] [<ffffffffc0385e30>] __del_reloc_root+0x0/0x100 [btrfs]
  825. [ 787.670883] RSP: 0018:ffff8801d3ddb970 EFLAGS: 00000286
  826. [ 787.670883] RAX: ffff8801d1bbd180 RBX: 0000000000000246 RCX: 0000000000000006
  827. [ 787.670884] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f000
  828. [ 787.670885] RBP: ffff8801d3ddb988 R08: 000000000000000a R09: 00000000000007cd
  829. [ 787.670886] R10: 000000000002641c R11: 00000000000007cd R12: 0000000000000006
  830. [ 787.670886] R13: 0000000000000000 R14: 000000000000000a R15: 00000000000007cd
  831. [ 787.670888] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  832. [ 787.670888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  833. [ 787.670889] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  834. [ 787.670890] Stack:
  835. [ 787.670891] ffffffffc0385f55 ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8
  836. [ 787.670892] ffffffffc038c47e ffff880215228d78 00000000ae85e040 ffff88021522f3c0
  837. [ 787.670894] ffff8802152283c0 ffff8800b2c58000 ffff8801d027c090 ffff8800b2c58000
  838. [ 787.670895] Call Trace:
  839. [ 787.670903] [<ffffffffc0385f55>] ? free_reloc_roots+0x25/0x40 [btrfs]
  840. [ 787.670909] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  841. [ 787.670915] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  842. [ 787.670921] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  843. [ 787.670925] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  844. [ 787.670928] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  845. [ 787.670931] [<ffffffff811f1078>] mount_fs+0x38/0x160
  846. [ 787.670933] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  847. [ 787.670936] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  848. [ 787.670940] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  849. [ 787.670942] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  850. [ 787.670943] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  851. [ 787.670945] [<ffffffff811f1078>] mount_fs+0x38/0x160
  852. [ 787.670946] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  853. [ 787.670948] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  854. [ 787.670950] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  855. [ 787.670951] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  856. [ 787.670954] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  857. [ 787.670955] Code: f0 01 00 00 4d 8b 4d 18 49 c7 c0 e8 c0 3b c0 b9 ef ff ff ff ba 0f 05 00 00 48 c7 c6 c0 52 3b c0 e8 1c a3 02 00 0f 0b 0f 1f 40 00 <0f> 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 49 89 fc 48 8b
  858. [ 815.643915] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  859. [ 815.643917] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  860. [ 815.643972] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  861. [ 815.643977] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  862. [ 815.643978] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  863. [ 815.643979] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  864. [ 815.643980] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  865. [ 815.643984] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  866. [ 815.643985] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  867. [ 815.643986] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  868. [ 815.643987] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  869. [ 815.643987] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  870. [ 815.643988] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  871. [ 815.643989] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  872. [ 815.643990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  873. [ 815.643991] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  874. [ 815.643992] Stack:
  875. [ 815.643992] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  876. [ 815.643994] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  877. [ 815.643995] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  878. [ 815.643997] Call Trace:
  879. [ 815.644011] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  880. [ 815.644017] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  881. [ 815.644023] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  882. [ 815.644029] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  883. [ 815.644035] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  884. [ 815.644039] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  885. [ 815.644042] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  886. [ 815.644044] [<ffffffff811f1078>] mount_fs+0x38/0x160
  887. [ 815.644047] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  888. [ 815.644049] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  889. [ 815.644052] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  890. [ 815.644054] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  891. [ 815.644056] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  892. [ 815.644057] [<ffffffff811f1078>] mount_fs+0x38/0x160
  893. [ 815.644059] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  894. [ 815.644060] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  895. [ 815.644062] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  896. [ 815.644064] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  897. [ 815.644065] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  898. [ 815.644066] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  899. [ 821.841940] INFO: rcu_sched self-detected stall on CPU { 0} (t=15000 jiffies g=9024 c=9023 q=0)
  900. [ 821.841944] Task dump for CPU 0:
  901. [ 821.841945] mount R running task 0 5753 4780 0x00000008
  902. [ 821.841947] ffffffff81c519c0 ffff88021fa03d78 ffffffff810a1449 0000000000000000
  903. [ 821.841949] ffffffff81c519c0 ffff88021fa03d98 ffffffff810a3bcb 0000000000000083
  904. [ 821.841950] 0000000000000001 ffff88021fa03dc8 ffffffff810d5bb8 ffff88021fa174c0
  905. [ 821.841952] Call Trace:
  906. [ 821.841953] <IRQ> [<ffffffff810a1449>] sched_show_task+0xa9/0x110
  907. [ 821.841958] [<ffffffff810a3bcb>] dump_cpu_task+0x3b/0x50
  908. [ 821.841960] [<ffffffff810d5bb8>] rcu_dump_cpu_stacks+0x88/0xd0
  909. [ 821.841962] [<ffffffff810d9615>] rcu_check_callbacks+0x485/0x760
  910. [ 821.841965] [<ffffffff8112c5fc>] ? acct_account_cputime+0x1c/0x20
  911. [ 821.841966] [<ffffffff810a4681>] ? account_system_time+0x81/0x120
  912. [ 821.841969] [<ffffffff810ee220>] ? tick_sched_handle.isra.14+0x60/0x60
  913. [ 821.841970] [<ffffffff810df429>] update_process_times+0x39/0x60
  914. [ 821.841972] [<ffffffff810ee1e5>] tick_sched_handle.isra.14+0x25/0x60
  915. [ 821.841973] [<ffffffff810ee264>] tick_sched_timer+0x44/0x80
  916. [ 821.841975] [<ffffffff810dfcc4>] __hrtimer_run_queues+0xe4/0x200
  917. [ 821.841977] [<ffffffff810e03c8>] hrtimer_interrupt+0xa8/0x1a0
  918. [ 821.841979] [<ffffffff8104bccc>] local_apic_timer_interrupt+0x3c/0x70
  919. [ 821.841981] [<ffffffff817ba241>] smp_apic_timer_interrupt+0x41/0x60
  920. [ 821.841982] [<ffffffff817b83db>] apic_timer_interrupt+0x6b/0x70
  921. [ 821.841983] <EOI> [<ffffffffc0385e6e>] ? __del_reloc_root+0x3e/0x100 [btrfs]
  922. [ 821.842003] [<ffffffffc0385e60>] ? __del_reloc_root+0x30/0x100 [btrfs]
  923. [ 821.842008] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  924. [ 821.842013] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  925. [ 821.842019] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  926. [ 821.842025] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  927. [ 821.842029] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  928. [ 821.842031] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  929. [ 821.842034] [<ffffffff811f1078>] mount_fs+0x38/0x160
  930. [ 821.842036] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  931. [ 821.842038] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  932. [ 821.842042] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  933. [ 821.842043] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  934. [ 821.842045] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  935. [ 821.842047] [<ffffffff811f1078>] mount_fs+0x38/0x160
  936. [ 821.842048] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  937. [ 821.842050] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  938. [ 821.842051] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  939. [ 821.842053] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  940. [ 821.842055] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  941. [ 847.613040] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  942. [ 847.613042] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  943. [ 847.613069] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  944. [ 847.613074] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  945. [ 847.613075] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  946. [ 847.613077] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  947. [ 847.613078] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  948. [ 847.613083] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  949. [ 847.613084] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  950. [ 847.613085] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  951. [ 847.613085] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  952. [ 847.613086] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  953. [ 847.613087] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  954. [ 847.613088] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  955. [ 847.613089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  956. [ 847.613089] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  957. [ 847.613090] Stack:
  958. [ 847.613091] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  959. [ 847.613093] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  960. [ 847.613094] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  961. [ 847.613095] Call Trace:
  962. [ 847.613110] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  963. [ 847.613117] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  964. [ 847.613123] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  965. [ 847.613128] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  966. [ 847.613135] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  967. [ 847.613139] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  968. [ 847.613142] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  969. [ 847.613144] [<ffffffff811f1078>] mount_fs+0x38/0x160
  970. [ 847.613146] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  971. [ 847.613148] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  972. [ 847.613152] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  973. [ 847.613154] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  974. [ 847.613156] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  975. [ 847.613157] [<ffffffff811f1078>] mount_fs+0x38/0x160
  976. [ 847.613159] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  977. [ 847.613160] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  978. [ 847.613162] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  979. [ 847.613164] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  980. [ 847.613166] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  981. [ 847.613166] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  982. [ 875.585924] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  983. [ 875.585936] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  984. [ 875.585989] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  985. [ 875.586003] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  986. [ 875.586004] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  987. [ 875.586005] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  988. [ 875.586006] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  989. [ 875.586011] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  990. [ 875.586012] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  991. [ 875.586013] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  992. [ 875.586014] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  993. [ 875.586014] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  994. [ 875.586015] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  995. [ 875.586016] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  996. [ 875.586017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  997. [ 875.586018] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  998. [ 875.586019] Stack:
  999. [ 875.586019] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1000. [ 875.586021] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1001. [ 875.586022] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1002. [ 875.586024] Call Trace:
  1003. [ 875.586039] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1004. [ 875.586045] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1005. [ 875.586051] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1006. [ 875.586057] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1007. [ 875.586063] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1008. [ 875.586067] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1009. [ 875.586071] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1010. [ 875.586073] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1011. [ 875.586075] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1012. [ 875.586077] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1013. [ 875.586081] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1014. [ 875.586083] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1015. [ 875.586085] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1016. [ 875.586086] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1017. [ 875.586088] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1018. [ 875.586089] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1019. [ 875.586091] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1020. [ 875.586093] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1021. [ 875.586094] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1022. [ 875.586095] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1023. [ 903.558736] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1024. [ 903.558739] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1025. [ 903.558767] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1026. [ 903.558772] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1027. [ 903.558773] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1028. [ 903.558774] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1029. [ 903.558775] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1030. [ 903.558781] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1031. [ 903.558781] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1032. [ 903.558782] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1033. [ 903.558783] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1034. [ 903.558784] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1035. [ 903.558785] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1036. [ 903.558786] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1037. [ 903.558787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1038. [ 903.558788] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1039. [ 903.558789] Stack:
  1040. [ 903.558789] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1041. [ 903.558791] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1042. [ 903.558792] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1043. [ 903.558794] Call Trace:
  1044. [ 903.558808] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1045. [ 903.558815] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1046. [ 903.558821] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1047. [ 903.558827] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1048. [ 903.558834] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1049. [ 903.558838] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1050. [ 903.558841] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1051. [ 903.558844] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1052. [ 903.558846] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1053. [ 903.558848] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1054. [ 903.558852] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1055. [ 903.558854] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1056. [ 903.558856] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1057. [ 903.558858] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1058. [ 903.558859] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1059. [ 903.558861] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1060. [ 903.558863] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1061. [ 903.558865] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1062. [ 903.558866] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1063. [ 903.558867] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1064. [ 931.531487] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1065. [ 931.531489] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1066. [ 931.531547] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1067. [ 931.531552] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1068. [ 931.531553] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1069. [ 931.531554] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1070. [ 931.531555] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1071. [ 931.531560] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1072. [ 931.531560] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1073. [ 931.531561] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1074. [ 931.531562] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1075. [ 931.531563] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1076. [ 931.531563] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1077. [ 931.531564] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1078. [ 931.531565] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1079. [ 931.531566] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1080. [ 931.531567] Stack:
  1081. [ 931.531567] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1082. [ 931.531569] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1083. [ 931.531570] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1084. [ 931.531572] Call Trace:
  1085. [ 931.531586] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1086. [ 931.531593] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1087. [ 931.531599] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1088. [ 931.531605] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1089. [ 931.531611] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1090. [ 931.531615] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1091. [ 931.531618] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1092. [ 931.531620] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1093. [ 931.531622] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1094. [ 931.531624] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1095. [ 931.531628] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1096. [ 931.531630] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1097. [ 931.531632] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1098. [ 931.531633] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1099. [ 931.531635] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1100. [ 931.531636] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1101. [ 931.531638] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1102. [ 931.531640] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1103. [ 931.531641] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1104. [ 931.531642] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1105. [ 959.504191] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1106. [ 959.504193] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1107. [ 959.504250] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1108. [ 959.504255] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1109. [ 959.504256] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1110. [ 959.504257] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1111. [ 959.504258] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1112. [ 959.504263] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1113. [ 959.504263] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1114. [ 959.504264] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1115. [ 959.504265] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1116. [ 959.504266] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1117. [ 959.504266] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1118. [ 959.504267] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1119. [ 959.504268] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1120. [ 959.504269] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1121. [ 959.504270] Stack:
  1122. [ 959.504270] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1123. [ 959.504272] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1124. [ 959.504273] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1125. [ 959.504275] Call Trace:
  1126. [ 959.504288] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1127. [ 959.504295] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1128. [ 959.504301] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1129. [ 959.504307] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1130. [ 959.504313] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1131. [ 959.504317] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1132. [ 959.504320] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1133. [ 959.504323] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1134. [ 959.504325] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1135. [ 959.504327] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1136. [ 959.504331] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1137. [ 959.504332] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1138. [ 959.504334] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1139. [ 959.504335] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1140. [ 959.504337] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1141. [ 959.504338] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1142. [ 959.504340] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1143. [ 959.504342] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1144. [ 959.504344] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1145. [ 959.504345] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1146. [ 959.540195] INFO: task systemd:1 blocked for more than 120 seconds.
  1147. [ 959.540197] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1148. [ 959.540198] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1149. [ 959.540199] systemd D 0000000000000002 0 1 0 0x00000000
  1150. [ 959.540211] ffff8802165d7b08 0000000000000082 ffff8802009f2940 ffff880216668000
  1151. [ 959.540212] ffff88021fb96640 ffff8802165d8000 ffff8802165d7c70 ffff8802165d7c68
  1152. [ 959.540214] ffff880216668000 0000000000000005 ffff8802165d7b28 ffffffff817b3937
  1153. [ 959.540215] Call Trace:
  1154. [ 959.540218] [<ffffffff817b3937>] schedule+0x37/0x80
  1155. [ 959.540220] [<ffffffff817b65e9>] schedule_timeout+0x189/0x250
  1156. [ 959.540223] [<ffffffff8109ee66>] ? try_to_wake_up+0x1f6/0x300
  1157. [ 959.540225] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1158. [ 959.540226] [<ffffffff817b4244>] wait_for_completion+0xa4/0x110
  1159. [ 959.540228] [<ffffffff8109f030>] ? wake_up_q+0x70/0x70
  1160. [ 959.540230] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1161. [ 959.540232] [<ffffffff8110e26f>] __stop_cpus+0x4f/0x70
  1162. [ 959.540233] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1163. [ 959.540234] [<ffffffff8110e6ae>] try_stop_cpus+0x3e/0x60
  1164. [ 959.540236] [<ffffffff810d72d4>] synchronize_sched_expedited+0x194/0x2d0
  1165. [ 959.540238] [<ffffffff810be4ae>] percpu_down_write+0x1e/0xd0
  1166. [ 959.540239] [<ffffffff813c0147>] ? kstrtoll+0x27/0x70
  1167. [ 959.540241] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1168. [ 959.540243] [<ffffffff81106659>] __cgroup_procs_write+0x69/0x2b0
  1169. [ 959.540245] [<ffffffff811068b4>] cgroup_procs_write+0x14/0x20
  1170. [ 959.540246] [<ffffffff81101e40>] cgroup_file_write+0x30/0xe0
  1171. [ 959.540249] [<ffffffff81264cfd>] kernfs_fop_write+0x11d/0x170
  1172. [ 959.540251] [<ffffffff811ecc48>] __vfs_write+0x18/0x40
  1173. [ 959.540252] [<ffffffff811ed526>] vfs_write+0xa6/0x1a0
  1174. [ 959.540254] [<ffffffff811ee166>] SyS_write+0x46/0xa0
  1175. [ 959.540256] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1176. [ 959.540265] INFO: task systemd-journal:1197 blocked for more than 120 seconds.
  1177. [ 959.540266] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1178. [ 959.540267] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1179. [ 959.540267] systemd-journal D 0000000000000002 0 1197 1 0x00000000
  1180. [ 959.540269] ffff8800ca083cf8 0000000000000082 ffff8802152e0dc0 ffff8800bbb444c0
  1181. [ 959.540270] ffff8800ca083ef4 ffff8800ca084000 ffffffff81c5aa84 ffff8800bbb444c0
  1182. [ 959.540272] 00000000ffffffff ffffffff81c5aa88 ffff8800ca083d18 ffffffff817b3937
  1183. [ 959.540273] Call Trace:
  1184. [ 959.540275] [<ffffffff817b3937>] schedule+0x37/0x80
  1185. [ 959.540276] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1186. [ 959.540278] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1187. [ 959.540279] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1188. [ 959.540281] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1189. [ 959.540283] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1190. [ 959.540285] [<ffffffff8121021a>] seq_read+0xca/0x360
  1191. [ 959.540288] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1192. [ 959.540289] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1193. [ 959.540290] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1194. [ 959.540291] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1195. [ 959.540293] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1196. [ 959.540297] INFO: task polkitd:1682 blocked for more than 120 seconds.
  1197. [ 959.540298] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1198. [ 959.540299] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1199. [ 959.540299] polkitd D ffff88021fb96640 0 1682 1 0x00000000
  1200. [ 959.540301] ffff880210d3fcf8 0000000000000086 ffff8802166b44c0 ffff8802152e44c0
  1201. [ 959.540302] ffff880210d3fef4 ffff880210d40000 ffffffff81c5aa84 ffff8802152e44c0
  1202. [ 959.540304] 00000000ffffffff ffffffff81c5aa88 ffff880210d3fd18 ffffffff817b3937
  1203. [ 959.540305] Call Trace:
  1204. [ 959.540306] [<ffffffff817b3937>] schedule+0x37/0x80
  1205. [ 959.540308] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1206. [ 959.540309] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1207. [ 959.540310] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1208. [ 959.540312] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1209. [ 959.540313] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1210. [ 959.540315] [<ffffffff8121021a>] seq_read+0xca/0x360
  1211. [ 959.540317] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1212. [ 959.540318] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1213. [ 959.540319] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1214. [ 959.540320] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1215. [ 959.540322] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1216. [ 959.540344] INFO: task apport-gtk:5860 blocked for more than 120 seconds.
  1217. [ 959.540345] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1218. [ 959.540346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1219. [ 959.540346] apport-gtk D ffff88021fa96640 0 5860 1738 0x00000000
  1220. [ 959.540348] ffff88009007fcf8 0000000000000082 ffff8802166b2940 ffff8801c6aa8dc0
  1221. [ 959.540349] 0000000000000010 ffff880090080000 ffffffff81c5aa84 ffff8801c6aa8dc0
  1222. [ 959.540350] 00000000ffffffff ffffffff81c5aa88 ffff88009007fd18 ffffffff817b3937
  1223. [ 959.540351] Call Trace:
  1224. [ 959.540353] [<ffffffff817b3937>] schedule+0x37/0x80
  1225. [ 959.540354] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1226. [ 959.540356] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1227. [ 959.540357] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1228. [ 959.540358] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1229. [ 959.540360] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1230. [ 959.540362] [<ffffffff8121021a>] seq_read+0xca/0x360
  1231. [ 959.540363] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1232. [ 959.540364] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1233. [ 959.540365] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1234. [ 959.540367] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1235. [ 959.540368] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1236. [ 987.476858] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1237. [ 987.476861] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1238. [ 987.476918] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1239. [ 987.476923] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1240. [ 987.476924] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1241. [ 987.476925] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1242. [ 987.476925] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1243. [ 987.476930] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1244. [ 987.476931] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1245. [ 987.476932] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1246. [ 987.476932] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1247. [ 987.476933] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1248. [ 987.476934] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1249. [ 987.476935] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1250. [ 987.476936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1251. [ 987.476936] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1252. [ 987.476937] Stack:
  1253. [ 987.476938] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1254. [ 987.476939] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1255. [ 987.476941] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1256. [ 987.476942] Call Trace:
  1257. [ 987.476956] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1258. [ 987.476962] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1259. [ 987.476968] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1260. [ 987.476974] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1261. [ 987.476980] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1262. [ 987.476984] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1263. [ 987.476987] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1264. [ 987.476990] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1265. [ 987.476992] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1266. [ 987.476994] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1267. [ 987.476997] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1268. [ 987.476999] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1269. [ 987.477001] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1270. [ 987.477002] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1271. [ 987.477004] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1272. [ 987.477005] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1273. [ 987.477007] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1274. [ 987.477009] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1275. [ 987.477011] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1276. [ 987.477012] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1277. [ 1001.678967] INFO: rcu_sched self-detected stall on CPU { 0} (t=60003 jiffies g=9024 c=9023 q=0)
  1278. [ 1001.678971] Task dump for CPU 0:
  1279. [ 1001.678973] mount R running task 0 5753 4780 0x00000008
  1280. [ 1001.678975] ffffffff81c519c0 ffff88021fa03d78 ffffffff810a1449 0000000000000000
  1281. [ 1001.678976] ffffffff81c519c0 ffff88021fa03d98 ffffffff810a3bcb 0000000000000083
  1282. [ 1001.678977] 0000000000000001 ffff88021fa03dc8 ffffffff810d5bb8 ffff88021fa174c0
  1283. [ 1001.678979] Call Trace:
  1284. [ 1001.678980] <IRQ> [<ffffffff810a1449>] sched_show_task+0xa9/0x110
  1285. [ 1001.678986] [<ffffffff810a3bcb>] dump_cpu_task+0x3b/0x50
  1286. [ 1001.678989] [<ffffffff810d5bb8>] rcu_dump_cpu_stacks+0x88/0xd0
  1287. [ 1001.678991] [<ffffffff810d9615>] rcu_check_callbacks+0x485/0x760
  1288. [ 1001.678994] [<ffffffff8112c5fc>] ? acct_account_cputime+0x1c/0x20
  1289. [ 1001.678995] [<ffffffff810a4681>] ? account_system_time+0x81/0x120
  1290. [ 1001.678997] [<ffffffff810ee220>] ? tick_sched_handle.isra.14+0x60/0x60
  1291. [ 1001.678999] [<ffffffff810df429>] update_process_times+0x39/0x60
  1292. [ 1001.679001] [<ffffffff810ee1e5>] tick_sched_handle.isra.14+0x25/0x60
  1293. [ 1001.679002] [<ffffffff810ee264>] tick_sched_timer+0x44/0x80
  1294. [ 1001.679004] [<ffffffff810dfcc4>] __hrtimer_run_queues+0xe4/0x200
  1295. [ 1001.679006] [<ffffffff810e03c8>] hrtimer_interrupt+0xa8/0x1a0
  1296. [ 1001.679008] [<ffffffff8104bccc>] local_apic_timer_interrupt+0x3c/0x70
  1297. [ 1001.679011] [<ffffffff817ba241>] smp_apic_timer_interrupt+0x41/0x60
  1298. [ 1001.679012] [<ffffffff817b83db>] apic_timer_interrupt+0x6b/0x70
  1299. [ 1001.679013] <EOI> [<ffffffff817ae466>] ? printk+0x46/0x48
  1300. [ 1001.679016] [<ffffffff817b72b4>] ? _raw_spin_lock+0x14/0x30
  1301. [ 1001.679028] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1302. [ 1001.679034] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1303. [ 1001.679040] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1304. [ 1001.679045] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1305. [ 1001.679052] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1306. [ 1001.679056] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1307. [ 1001.679059] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1308. [ 1001.679062] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1309. [ 1001.679064] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1310. [ 1001.679066] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1311. [ 1001.679069] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1312. [ 1001.679071] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1313. [ 1001.679073] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1314. [ 1001.679074] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1315. [ 1001.679076] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1316. [ 1001.679077] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1317. [ 1001.679079] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1318. [ 1001.679081] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1319. [ 1001.679083] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1320. [ 1027.437760] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1321. [ 1027.437773] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1322. [ 1027.437810] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1323. [ 1027.437815] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1324. [ 1027.437816] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1325. [ 1027.437817] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1326. [ 1027.437818] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1327. [ 1027.437823] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1328. [ 1027.437823] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1329. [ 1027.437824] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1330. [ 1027.437825] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1331. [ 1027.437826] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1332. [ 1027.437826] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1333. [ 1027.437827] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1334. [ 1027.437828] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1335. [ 1027.437829] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1336. [ 1027.437830] Stack:
  1337. [ 1027.437831] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1338. [ 1027.437832] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1339. [ 1027.437834] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1340. [ 1027.437835] Call Trace:
  1341. [ 1027.437849] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1342. [ 1027.437856] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1343. [ 1027.437862] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1344. [ 1027.437868] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1345. [ 1027.437874] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1346. [ 1027.437878] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1347. [ 1027.437881] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1348. [ 1027.437884] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1349. [ 1027.437886] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1350. [ 1027.437888] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1351. [ 1027.437891] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1352. [ 1027.437893] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1353. [ 1027.437895] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1354. [ 1027.437896] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1355. [ 1027.437898] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1356. [ 1027.437899] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1357. [ 1027.437901] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1358. [ 1027.437903] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1359. [ 1027.437905] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1360. [ 1027.437905] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1361. [ 1055.410361] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1362. [ 1055.410374] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1363. [ 1055.410415] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1364. [ 1055.410420] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1365. [ 1055.410421] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1366. [ 1055.410423] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1367. [ 1055.410423] RIP: 0010:[<ffffffff817b72a5>] [<ffffffff817b72a5>] _raw_spin_lock+0x5/0x30
  1368. [ 1055.410428] RSP: 0018:ffff8801d3ddb940 EFLAGS: 00000286
  1369. [ 1055.410429] RAX: ffff8800b2f74000 RBX: 000000000002641c RCX: 0000000000000006
  1370. [ 1055.410430] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff880215228d70
  1371. [ 1055.410431] RBP: ffff8801d3ddb968 R08: 000000000000000a R09: 00000000000007cd
  1372. [ 1055.410432] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff817ae466
  1373. [ 1055.410432] R13: ffff8801d3ddb938 R14: ffffffff810cac89 R15: ffff8801d3ddb8a8
  1374. [ 1055.410433] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1375. [ 1055.410434] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1376. [ 1055.410435] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1377. [ 1055.410436] Stack:
  1378. [ 1055.410437] ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800 ffff8800b2c5f000
  1379. [ 1055.410438] ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55 ffff8802152283c0
  1380. [ 1055.410439] ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e ffff880215228d78
  1381. [ 1055.410441] Call Trace:
  1382. [ 1055.410455] [<ffffffffc0385e60>] ? __del_reloc_root+0x30/0x100 [btrfs]
  1383. [ 1055.410463] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1384. [ 1055.410469] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1385. [ 1055.410474] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1386. [ 1055.410481] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1387. [ 1055.410485] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1388. [ 1055.410487] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1389. [ 1055.410490] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1390. [ 1055.410492] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1391. [ 1055.410494] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1392. [ 1055.410497] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1393. [ 1055.410499] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1394. [ 1055.410501] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1395. [ 1055.410502] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1396. [ 1055.410504] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1397. [ 1055.410505] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1398. [ 1055.410507] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1399. [ 1055.410509] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1400. [ 1055.410511] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1401. [ 1055.410511] Code: 66 0f 1f 44 00 00 31 c0 ba 01 00 00 00 f0 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 <55> 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 85 c0 75 02 5d c3
  1402. [ 1079.422854] INFO: task systemd:1 blocked for more than 120 seconds.
  1403. [ 1079.422857] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1404. [ 1079.422858] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1405. [ 1079.422859] systemd D 0000000000000002 0 1 0 0x00000000
  1406. [ 1079.422862] ffff8802165d7b08 0000000000000082 ffff8802009f2940 ffff880216668000
  1407. [ 1079.422864] ffff88021fb96640 ffff8802165d8000 ffff8802165d7c70 ffff8802165d7c68
  1408. [ 1079.422866] ffff880216668000 0000000000000005 ffff8802165d7b28 ffffffff817b3937
  1409. [ 1079.422867] Call Trace:
  1410. [ 1079.422881] [<ffffffff817b3937>] schedule+0x37/0x80
  1411. [ 1079.422884] [<ffffffff817b65e9>] schedule_timeout+0x189/0x250
  1412. [ 1079.422887] [<ffffffff8109ee66>] ? try_to_wake_up+0x1f6/0x300
  1413. [ 1079.422888] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1414. [ 1079.422890] [<ffffffff817b4244>] wait_for_completion+0xa4/0x110
  1415. [ 1079.422891] [<ffffffff8109f030>] ? wake_up_q+0x70/0x70
  1416. [ 1079.422894] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1417. [ 1079.422895] [<ffffffff8110e26f>] __stop_cpus+0x4f/0x70
  1418. [ 1079.422897] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1419. [ 1079.422898] [<ffffffff8110e6ae>] try_stop_cpus+0x3e/0x60
  1420. [ 1079.422899] [<ffffffff810d72d4>] synchronize_sched_expedited+0x194/0x2d0
  1421. [ 1079.422902] [<ffffffff810be4ae>] percpu_down_write+0x1e/0xd0
  1422. [ 1079.422904] [<ffffffff813c0147>] ? kstrtoll+0x27/0x70
  1423. [ 1079.422906] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1424. [ 1079.422908] [<ffffffff81106659>] __cgroup_procs_write+0x69/0x2b0
  1425. [ 1079.422910] [<ffffffff811068b4>] cgroup_procs_write+0x14/0x20
  1426. [ 1079.422911] [<ffffffff81101e40>] cgroup_file_write+0x30/0xe0
  1427. [ 1079.422914] [<ffffffff81264cfd>] kernfs_fop_write+0x11d/0x170
  1428. [ 1079.422916] [<ffffffff811ecc48>] __vfs_write+0x18/0x40
  1429. [ 1079.422917] [<ffffffff811ed526>] vfs_write+0xa6/0x1a0
  1430. [ 1079.422918] [<ffffffff811ee166>] SyS_write+0x46/0xa0
  1431. [ 1079.422921] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1432. [ 1079.422931] INFO: task systemd-journal:1197 blocked for more than 120 seconds.
  1433. [ 1079.422932] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1434. [ 1079.422932] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1435. [ 1079.422933] systemd-journal D 0000000000000002 0 1197 1 0x00000000
  1436. [ 1079.422935] ffff8800ca083cf8 0000000000000082 ffff8802152e0dc0 ffff8800bbb444c0
  1437. [ 1079.422936] ffff8800ca083ef4 ffff8800ca084000 ffffffff81c5aa84 ffff8800bbb444c0
  1438. [ 1079.422937] 00000000ffffffff ffffffff81c5aa88 ffff8800ca083d18 ffffffff817b3937
  1439. [ 1079.422939] Call Trace:
  1440. [ 1079.422940] [<ffffffff817b3937>] schedule+0x37/0x80
  1441. [ 1079.422942] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1442. [ 1079.422944] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1443. [ 1079.422945] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1444. [ 1079.422947] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1445. [ 1079.422949] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1446. [ 1079.422952] [<ffffffff8121021a>] seq_read+0xca/0x360
  1447. [ 1079.422954] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1448. [ 1079.422956] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1449. [ 1079.422957] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1450. [ 1079.422958] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1451. [ 1079.422959] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1452. [ 1079.422963] INFO: task systemd-logind:1639 blocked for more than 120 seconds.
  1453. [ 1079.422963] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1454. [ 1079.422964] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1455. [ 1079.422965] systemd-logind D ffff88021fb16640 0 1639 1 0x00000000
  1456. [ 1079.422966] ffff88003f2bfcf8 0000000000000082 ffff8802166b3700 ffff88003f126040
  1457. [ 1079.422968] ffff88003f2bfef4 ffff88003f2c0000 ffffffff81c5aa84 ffff88003f126040
  1458. [ 1079.422970] 00000000ffffffff ffffffff81c5aa88 ffff88003f2bfd18 ffffffff817b3937
  1459. [ 1079.422971] Call Trace:
  1460. [ 1079.422972] [<ffffffff817b3937>] schedule+0x37/0x80
  1461. [ 1079.422974] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1462. [ 1079.422975] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1463. [ 1079.422976] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1464. [ 1079.422978] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1465. [ 1079.422979] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1466. [ 1079.422981] [<ffffffff8121021a>] seq_read+0xca/0x360
  1467. [ 1079.422983] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1468. [ 1079.422984] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1469. [ 1079.422985] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1470. [ 1079.422986] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1471. [ 1079.422988] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1472. [ 1079.422990] INFO: task polkitd:1682 blocked for more than 120 seconds.
  1473. [ 1079.422990] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1474. [ 1079.422991] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1475. [ 1079.422991] polkitd D ffff88021fb96640 0 1682 1 0x00000000
  1476. [ 1079.422993] ffff880210d3fcf8 0000000000000086 ffff8802166b44c0 ffff8802152e44c0
  1477. [ 1079.422994] ffff880210d3fef4 ffff880210d40000 ffffffff81c5aa84 ffff8802152e44c0
  1478. [ 1079.422995] 00000000ffffffff ffffffff81c5aa88 ffff880210d3fd18 ffffffff817b3937
  1479. [ 1079.422997] Call Trace:
  1480. [ 1079.422998] [<ffffffff817b3937>] schedule+0x37/0x80
  1481. [ 1079.422999] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1482. [ 1079.423001] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1483. [ 1079.423002] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1484. [ 1079.423004] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1485. [ 1079.423005] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1486. [ 1079.423007] [<ffffffff8121021a>] seq_read+0xca/0x360
  1487. [ 1079.423008] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1488. [ 1079.423009] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1489. [ 1079.423010] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1490. [ 1079.423011] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1491. [ 1079.423013] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1492. [ 1079.423037] INFO: task apport-gtk:5860 blocked for more than 120 seconds.
  1493. [ 1079.423038] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1494. [ 1079.423039] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1495. [ 1079.423040] apport-gtk D ffff88021fa96640 0 5860 1738 0x00000000
  1496. [ 1079.423041] ffff88009007fcf8 0000000000000082 ffff8802166b2940 ffff8801c6aa8dc0
  1497. [ 1079.423042] 0000000000000010 ffff880090080000 ffffffff81c5aa84 ffff8801c6aa8dc0
  1498. [ 1079.423044] 00000000ffffffff ffffffff81c5aa88 ffff88009007fd18 ffffffff817b3937
  1499. [ 1079.423045] Call Trace:
  1500. [ 1079.423046] [<ffffffff817b3937>] schedule+0x37/0x80
  1501. [ 1079.423048] [<ffffffff817b3bee>] schedule_preempt_disabled+0xe/0x10
  1502. [ 1079.423049] [<ffffffff817b54f3>] __mutex_lock_slowpath+0x93/0x110
  1503. [ 1079.423050] [<ffffffff817b5593>] mutex_lock+0x23/0x40
  1504. [ 1079.423052] [<ffffffff81107f22>] proc_cgroup_show+0x52/0x1f0
  1505. [ 1079.423054] [<ffffffff81255684>] proc_single_show+0x54/0x90
  1506. [ 1079.423056] [<ffffffff8121021a>] seq_read+0xca/0x360
  1507. [ 1079.423057] [<ffffffff8130c370>] ? security_file_permission+0xa0/0xc0
  1508. [ 1079.423058] [<ffffffff811ece58>] __vfs_read+0x18/0x40
  1509. [ 1079.423059] [<ffffffff811ed3d7>] vfs_read+0x87/0x130
  1510. [ 1079.423060] [<ffffffff811ee0c6>] SyS_read+0x46/0xa0
  1511. [ 1079.423062] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1512. [ 1083.382945] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1513. [ 1083.382947] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1514. [ 1083.382973] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1515. [ 1083.382978] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1516. [ 1083.382979] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1517. [ 1083.382980] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1518. [ 1083.382980] RIP: 0010:[<ffffffffc0385f58>] [<ffffffffc0385f58>] free_reloc_roots+0x28/0x40 [btrfs]
  1519. [ 1083.382995] RSP: 0018:ffff8801d3ddb978 EFLAGS: 00000246
  1520. [ 1083.382995] RAX: ffff8801d1bbd180 RBX: 0000000000000246 RCX: 0000000000000006
  1521. [ 1083.382996] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f3c0
  1522. [ 1083.382997] RBP: ffff8801d3ddb988 R08: 000000000000000a R09: 00000000000007cd
  1523. [ 1083.382998] R10: 000000000002641c R11: 00000000000007cd R12: 0000000000000006
  1524. [ 1083.382998] R13: 0000000000000000 R14: 000000000000000a R15: 00000000000007cd
  1525. [ 1083.382999] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1526. [ 1083.383000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1527. [ 1083.383001] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1528. [ 1083.383002] Stack:
  1529. [ 1083.383003] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1530. [ 1083.383004] ffff880215228d78 00000000ae85e040 ffff88021522f3c0 ffff8802152283c0
  1531. [ 1083.383005] ffff8800b2c58000 ffff8801d027c090 ffff8800b2c58000 ffff8801d3ddba20
  1532. [ 1083.383007] Call Trace:
  1533. [ 1083.383014] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1534. [ 1083.383020] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1535. [ 1083.383027] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1536. [ 1083.383031] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1537. [ 1083.383034] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1538. [ 1083.383036] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1539. [ 1083.383039] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1540. [ 1083.383042] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1541. [ 1083.383046] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1542. [ 1083.383047] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1543. [ 1083.383049] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1544. [ 1083.383050] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1545. [ 1083.383052] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1546. [ 1083.383053] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1547. [ 1083.383055] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1548. [ 1083.383057] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1549. [ 1083.383060] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1550. [ 1083.383061] Code: 44 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 8b 3f 48 39 fb 74 14 48 81 ef c0 03 00 00 e8 db fe ff ff 48 8b 3b <48> 39 fb 75 ec 48 83 c4 08 5b 5d c3 66 90 66 2e 0f 1f 84 00 00
  1551. [ 1111.355516] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [mount:5753]
  1552. [ 1111.355518] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1553. [ 1111.355578] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1554. [ 1111.355583] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1555. [ 1111.355583] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1556. [ 1111.355585] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1557. [ 1111.355585] RIP: 0010:[<ffffffffc0385e40>] [<ffffffffc0385e40>] __del_reloc_root+0x10/0x100 [btrfs]
  1558. [ 1111.355600] RSP: 0018:ffff8801d3ddb948 EFLAGS: 00000286
  1559. [ 1111.355601] RAX: ffff8801d1bbd180 RBX: 000000000002641c RCX: 0000000000000006
  1560. [ 1111.355602] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f000
  1561. [ 1111.355603] RBP: ffff8801d3ddb968 R08: 000000000000000a R09: 00000000000007cd
  1562. [ 1111.355603] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff817ae466
  1563. [ 1111.355604] R13: ffff8801d3ddb938 R14: ffffffff810cac89 R15: ffff8801d3ddb8a8
  1564. [ 1111.355605] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1565. [ 1111.355606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1566. [ 1111.355607] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1567. [ 1111.355608] Stack:
  1568. [ 1111.355608] ffff8801d3ddb9a8 ffff880215228800 ffff8800b2c5f000 ffff8801d3ddb9a8
  1569. [ 1111.355610] ffff8801d3ddb988 ffffffffc0385f55 ffff8802152283c0 ffff8802152283c0
  1570. [ 1111.355611] ffff8801d3ddb9e8 ffffffffc038c47e ffff880215228d78 00000000ae85e040
  1571. [ 1111.355613] Call Trace:
  1572. [ 1111.355620] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1573. [ 1111.355626] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1574. [ 1111.355631] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1575. [ 1111.355638] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1576. [ 1111.355642] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1577. [ 1111.355645] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1578. [ 1111.355647] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1579. [ 1111.355649] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1580. [ 1111.355651] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1581. [ 1111.355655] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1582. [ 1111.355657] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1583. [ 1111.355658] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1584. [ 1111.355660] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1585. [ 1111.355661] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1586. [ 1111.355663] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1587. [ 1111.355664] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1588. [ 1111.355666] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1589. [ 1111.355669] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1590. [ 1111.355669] Code: ef ff ff ff ba 0f 05 00 00 48 c7 c6 c0 52 3b c0 e8 1c a3 02 00 0f 0b 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 <49> 89 fc 48 8b 87 f0 01 00 00 4c 8b a8 b8 0b 00 00 4d 8d b5 70
  1591. [ 1139.328084] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [mount:5753]
  1592. [ 1139.328087] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1593. [ 1139.328123] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1594. [ 1139.328128] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1595. [ 1139.328128] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1596. [ 1139.328129] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1597. [ 1139.328130] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1598. [ 1139.328136] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1599. [ 1139.328137] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1600. [ 1139.328137] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1601. [ 1139.328138] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1602. [ 1139.328139] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1603. [ 1139.328140] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1604. [ 1139.328141] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1605. [ 1139.328142] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1606. [ 1139.328142] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1607. [ 1139.328143] Stack:
  1608. [ 1139.328144] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1609. [ 1139.328145] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1610. [ 1139.328147] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1611. [ 1139.328148] Call Trace:
  1612. [ 1139.328163] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1613. [ 1139.328170] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1614. [ 1139.328176] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1615. [ 1139.328181] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1616. [ 1139.328188] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1617. [ 1139.328192] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1618. [ 1139.328195] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1619. [ 1139.328197] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1620. [ 1139.328199] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1621. [ 1139.328201] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1622. [ 1139.328205] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1623. [ 1139.328207] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1624. [ 1139.328208] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1625. [ 1139.328210] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1626. [ 1139.328211] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1627. [ 1139.328213] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1628. [ 1139.328215] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1629. [ 1139.328216] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1630. [ 1139.328218] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1631. [ 1139.328219] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1632. [ 1167.300625] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [mount:5753]
  1633. [ 1167.300638] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1634. [ 1167.300674] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1635. [ 1167.300679] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1636. [ 1167.300680] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1637. [ 1167.300681] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1638. [ 1167.300682] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1639. [ 1167.300687] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1640. [ 1167.300688] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1641. [ 1167.300689] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1642. [ 1167.300689] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1643. [ 1167.300690] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1644. [ 1167.300691] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1645. [ 1167.300692] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1646. [ 1167.300693] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1647. [ 1167.300693] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1648. [ 1167.300694] Stack:
  1649. [ 1167.300695] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1650. [ 1167.300696] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1651. [ 1167.300697] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1652. [ 1167.300699] Call Trace:
  1653. [ 1167.300714] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1654. [ 1167.300720] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1655. [ 1167.300726] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1656. [ 1167.300732] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1657. [ 1167.300738] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1658. [ 1167.300742] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1659. [ 1167.300745] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1660. [ 1167.300747] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1661. [ 1167.300749] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1662. [ 1167.300751] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1663. [ 1167.300755] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1664. [ 1167.300757] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1665. [ 1167.300759] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1666. [ 1167.300760] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1667. [ 1167.300762] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1668. [ 1167.300763] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1669. [ 1167.300765] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1670. [ 1167.300767] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1671. [ 1167.300769] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1672. [ 1167.300769] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1673. [ 1181.514672] INFO: rcu_sched self-detected stall on CPU { 0} (t=105006 jiffies g=9024 c=9023 q=0)
  1674. [ 1181.514676] Task dump for CPU 0:
  1675. [ 1181.514678] mount R running task 0 5753 4780 0x00000008
  1676. [ 1181.514680] ffffffff81c519c0 ffff88021fa03d78 ffffffff810a1449 0000000000000000
  1677. [ 1181.514681] ffffffff81c519c0 ffff88021fa03d98 ffffffff810a3bcb 0000000000000083
  1678. [ 1181.514683] 0000000000000001 ffff88021fa03dc8 ffffffff810d5bb8 ffff88021fa174c0
  1679. [ 1181.514684] Call Trace:
  1680. [ 1181.514685] <IRQ> [<ffffffff810a1449>] sched_show_task+0xa9/0x110
  1681. [ 1181.514692] [<ffffffff810a3bcb>] dump_cpu_task+0x3b/0x50
  1682. [ 1181.514694] [<ffffffff810d5bb8>] rcu_dump_cpu_stacks+0x88/0xd0
  1683. [ 1181.514696] [<ffffffff810d9615>] rcu_check_callbacks+0x485/0x760
  1684. [ 1181.514699] [<ffffffff8112c5fc>] ? acct_account_cputime+0x1c/0x20
  1685. [ 1181.514700] [<ffffffff810a4681>] ? account_system_time+0x81/0x120
  1686. [ 1181.514703] [<ffffffff810ee220>] ? tick_sched_handle.isra.14+0x60/0x60
  1687. [ 1181.514704] [<ffffffff810df429>] update_process_times+0x39/0x60
  1688. [ 1181.514706] [<ffffffff810ee1e5>] tick_sched_handle.isra.14+0x25/0x60
  1689. [ 1181.514707] [<ffffffff810ee264>] tick_sched_timer+0x44/0x80
  1690. [ 1181.514708] [<ffffffff810dfcc4>] __hrtimer_run_queues+0xe4/0x200
  1691. [ 1181.514710] [<ffffffff810e03c8>] hrtimer_interrupt+0xa8/0x1a0
  1692. [ 1181.514712] [<ffffffff8104bccc>] local_apic_timer_interrupt+0x3c/0x70
  1693. [ 1181.514715] [<ffffffff817ba241>] smp_apic_timer_interrupt+0x41/0x60
  1694. [ 1181.514716] [<ffffffff817b83db>] apic_timer_interrupt+0x6b/0x70
  1695. [ 1181.514716] <EOI> [<ffffffffc0385e40>] ? __del_reloc_root+0x10/0x100 [btrfs]
  1696. [ 1181.514735] [<ffffffffc0385e60>] ? __del_reloc_root+0x30/0x100 [btrfs]
  1697. [ 1181.514740] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1698. [ 1181.514745] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1699. [ 1181.514751] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1700. [ 1181.514757] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1701. [ 1181.514761] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1702. [ 1181.514763] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1703. [ 1181.514765] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1704. [ 1181.514768] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1705. [ 1181.514770] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1706. [ 1181.514773] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1707. [ 1181.514775] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1708. [ 1181.514777] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1709. [ 1181.514778] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1710. [ 1181.514779] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1711. [ 1181.514781] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1712. [ 1181.514783] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1713. [ 1181.514784] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1714. [ 1181.514787] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1715. [ 1199.305239] INFO: task systemd:1 blocked for more than 120 seconds.
  1716. [ 1199.305242] Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1717. [ 1199.305243] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  1718. [ 1199.305244] systemd D 0000000000000002 0 1 0 0x00000000
  1719. [ 1199.305246] ffff8802165d7b08 0000000000000082 ffff8802009f2940 ffff880216668000
  1720. [ 1199.305248] ffff88021fb96640 ffff8802165d8000 ffff8802165d7c70 ffff8802165d7c68
  1721. [ 1199.305250] ffff880216668000 0000000000000005 ffff8802165d7b28 ffffffff817b3937
  1722. [ 1199.305251] Call Trace:
  1723. [ 1199.305257] [<ffffffff817b3937>] schedule+0x37/0x80
  1724. [ 1199.305259] [<ffffffff817b65e9>] schedule_timeout+0x189/0x250
  1725. [ 1199.305271] [<ffffffff8109ee66>] ? try_to_wake_up+0x1f6/0x300
  1726. [ 1199.305273] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1727. [ 1199.305274] [<ffffffff817b4244>] wait_for_completion+0xa4/0x110
  1728. [ 1199.305276] [<ffffffff8109f030>] ? wake_up_q+0x70/0x70
  1729. [ 1199.305278] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1730. [ 1199.305280] [<ffffffff8110e26f>] __stop_cpus+0x4f/0x70
  1731. [ 1199.305281] [<ffffffff810d5940>] ? get_state_synchronize_rcu+0x20/0x20
  1732. [ 1199.305282] [<ffffffff8110e6ae>] try_stop_cpus+0x3e/0x60
  1733. [ 1199.305284] [<ffffffff810d72d4>] synchronize_sched_expedited+0x194/0x2d0
  1734. [ 1199.305287] [<ffffffff810be4ae>] percpu_down_write+0x1e/0xd0
  1735. [ 1199.305289] [<ffffffff813c0147>] ? kstrtoll+0x27/0x70
  1736. [ 1199.305290] [<ffffffff817b5586>] ? mutex_lock+0x16/0x40
  1737. [ 1199.305293] [<ffffffff81106659>] __cgroup_procs_write+0x69/0x2b0
  1738. [ 1199.305295] [<ffffffff811068b4>] cgroup_procs_write+0x14/0x20
  1739. [ 1199.305296] [<ffffffff81101e40>] cgroup_file_write+0x30/0xe0
  1740. [ 1199.305299] [<ffffffff81264cfd>] kernfs_fop_write+0x11d/0x170
  1741. [ 1199.305301] [<ffffffff811ecc48>] __vfs_write+0x18/0x40
  1742. [ 1199.305302] [<ffffffff811ed526>] vfs_write+0xa6/0x1a0
  1743. [ 1199.305304] [<ffffffff811ee166>] SyS_write+0x46/0xa0
  1744. [ 1199.305306] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1745. [ 1207.261397] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1746. [ 1207.261399] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1747. [ 1207.261456] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1748. [ 1207.261461] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1749. [ 1207.261462] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1750. [ 1207.261463] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1751. [ 1207.261464] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1752. [ 1207.261469] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1753. [ 1207.261469] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1754. [ 1207.261470] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1755. [ 1207.261471] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1756. [ 1207.261472] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1757. [ 1207.261472] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1758. [ 1207.261473] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1759. [ 1207.261474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1760. [ 1207.261475] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1761. [ 1207.261476] Stack:
  1762. [ 1207.261476] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1763. [ 1207.261478] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1764. [ 1207.261479] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1765. [ 1207.261481] Call Trace:
  1766. [ 1207.261494] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1767. [ 1207.261501] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1768. [ 1207.261506] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1769. [ 1207.261511] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1770. [ 1207.261518] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1771. [ 1207.261522] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1772. [ 1207.261524] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1773. [ 1207.261527] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1774. [ 1207.261529] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1775. [ 1207.261531] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1776. [ 1207.261534] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1777. [ 1207.261536] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1778. [ 1207.261538] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1779. [ 1207.261539] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1780. [ 1207.261541] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1781. [ 1207.261542] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1782. [ 1207.261544] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1783. [ 1207.261546] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1784. [ 1207.261547] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1785. [ 1207.261548] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1786. [ 1235.233931] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1787. [ 1235.233943] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1788. [ 1235.233980] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1789. [ 1235.233984] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1790. [ 1235.233985] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1791. [ 1235.233986] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1792. [ 1235.233988] RIP: 0010:[<ffffffffc0385e40>] [<ffffffffc0385e40>] __del_reloc_root+0x10/0x100 [btrfs]
  1793. [ 1235.234002] RSP: 0018:ffff8801d3ddb948 EFLAGS: 00000286
  1794. [ 1235.234003] RAX: ffff8801d1bbd180 RBX: 000000000002641c RCX: 0000000000000006
  1795. [ 1235.234004] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f000
  1796. [ 1235.234004] RBP: ffff8801d3ddb968 R08: 000000000000000a R09: 00000000000007cd
  1797. [ 1235.234005] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff817ae466
  1798. [ 1235.234006] R13: ffff8801d3ddb938 R14: ffffffff810cac89 R15: ffff8801d3ddb8a8
  1799. [ 1235.234007] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1800. [ 1235.234008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1801. [ 1235.234008] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1802. [ 1235.234009] Stack:
  1803. [ 1235.234010] ffff8801d3ddb9a8 ffff880215228800 ffff8800b2c5f000 ffff8801d3ddb9a8
  1804. [ 1235.234011] ffff8801d3ddb988 ffffffffc0385f55 ffff8802152283c0 ffff8802152283c0
  1805. [ 1235.234013] ffff8801d3ddb9e8 ffffffffc038c47e ffff880215228d78 00000000ae85e040
  1806. [ 1235.234014] Call Trace:
  1807. [ 1235.234021] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1808. [ 1235.234027] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1809. [ 1235.234033] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1810. [ 1235.234039] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1811. [ 1235.234043] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1812. [ 1235.234046] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1813. [ 1235.234048] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1814. [ 1235.234050] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1815. [ 1235.234053] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1816. [ 1235.234057] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1817. [ 1235.234058] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1818. [ 1235.234060] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1819. [ 1235.234062] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1820. [ 1235.234063] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1821. [ 1235.234065] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1822. [ 1235.234066] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1823. [ 1235.234068] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1824. [ 1235.234071] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1825. [ 1235.234072] Code: ef ff ff ff ba 0f 05 00 00 48 c7 c6 c0 52 3b c0 e8 1c a3 02 00 0f 0b 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 <49> 89 fc 48 8b 87 f0 01 00 00 4c 8b a8 b8 0b 00 00 4d 8d b5 70
  1826. [ 1263.206460] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1827. [ 1263.206463] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1828. [ 1263.206520] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1829. [ 1263.206524] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1830. [ 1263.206525] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1831. [ 1263.206526] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1832. [ 1263.206527] RIP: 0010:[<ffffffffc0385e30>] [<ffffffffc0385e30>] __del_reloc_root+0x0/0x100 [btrfs]
  1833. [ 1263.206542] RSP: 0018:ffff8801d3ddb970 EFLAGS: 00000286
  1834. [ 1263.206543] RAX: ffff8801d1bbd180 RBX: 000000000002641c RCX: 0000000000000006
  1835. [ 1263.206543] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f000
  1836. [ 1263.206544] RBP: ffff8801d3ddb988 R08: 000000000000000a R09: 00000000000007cd
  1837. [ 1263.206545] R10: 000000000002641c R11: 00000000000007cd R12: 0000000000000006
  1838. [ 1263.206545] R13: ffff8801d3ddb968 R14: 000000000000000a R15: 00000000000007cd
  1839. [ 1263.206546] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1840. [ 1263.206547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1841. [ 1263.206548] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1842. [ 1263.206549] Stack:
  1843. [ 1263.206549] ffffffffc0385f55 ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8
  1844. [ 1263.206551] ffffffffc038c47e ffff880215228d78 00000000ae85e040 ffff88021522f3c0
  1845. [ 1263.206552] ffff8802152283c0 ffff8800b2c58000 ffff8801d027c090 ffff8800b2c58000
  1846. [ 1263.206554] Call Trace:
  1847. [ 1263.206561] [<ffffffffc0385f55>] ? free_reloc_roots+0x25/0x40 [btrfs]
  1848. [ 1263.206567] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1849. [ 1263.206572] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1850. [ 1263.206579] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1851. [ 1263.206583] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1852. [ 1263.206586] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1853. [ 1263.206589] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1854. [ 1263.206591] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1855. [ 1263.206593] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1856. [ 1263.206596] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1857. [ 1263.206598] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1858. [ 1263.206600] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1859. [ 1263.206601] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1860. [ 1263.206603] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1861. [ 1263.206604] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1862. [ 1263.206606] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1863. [ 1263.206608] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1864. [ 1263.206610] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1865. [ 1263.206611] Code: f0 01 00 00 4d 8b 4d 18 49 c7 c0 e8 c0 3b c0 b9 ef ff ff ff ba 0f 05 00 00 48 c7 c6 c0 52 3b c0 e8 1c a3 02 00 0f 0b 0f 1f 40 00 <0f> 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 49 89 fc 48 8b
  1866. [ 1291.178986] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1867. [ 1291.178988] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1868. [ 1291.179014] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1869. [ 1291.179019] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1870. [ 1291.179020] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1871. [ 1291.179021] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1872. [ 1291.179022] RIP: 0010:[<ffffffffc0385f58>] [<ffffffffc0385f58>] free_reloc_roots+0x28/0x40 [btrfs]
  1873. [ 1291.179037] RSP: 0018:ffff8801d3ddb978 EFLAGS: 00000246
  1874. [ 1291.179037] RAX: ffff8801d1bbd180 RBX: 0000000000000006 RCX: 0000000000000006
  1875. [ 1291.179038] RDX: 000007772f728000 RSI: 0000000000000246 RDI: ffff88021522f3c0
  1876. [ 1291.179039] RBP: ffff8801d3ddb988 R08: 000000000000000a R09: 00000000000007cd
  1877. [ 1291.179040] R10: 000000000002641c R11: 00000000000007cd R12: 000000000000000a
  1878. [ 1291.179040] R13: 00000000000007cd R14: 000000000002641c R15: 00000000000007cd
  1879. [ 1291.179041] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1880. [ 1291.179042] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1881. [ 1291.179043] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1882. [ 1291.179044] Stack:
  1883. [ 1291.179044] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1884. [ 1291.179046] ffff880215228d78 00000000ae85e040 ffff88021522f3c0 ffff8802152283c0
  1885. [ 1291.179047] ffff8800b2c58000 ffff8801d027c090 ffff8800b2c58000 ffff8801d3ddba20
  1886. [ 1291.179049] Call Trace:
  1887. [ 1291.179056] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1888. [ 1291.179062] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1889. [ 1291.179069] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1890. [ 1291.179073] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1891. [ 1291.179076] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1892. [ 1291.179079] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1893. [ 1291.179082] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1894. [ 1291.179084] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1895. [ 1291.179088] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1896. [ 1291.179090] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1897. [ 1291.179091] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1898. [ 1291.179093] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1899. [ 1291.179094] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1900. [ 1291.179096] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1901. [ 1291.179098] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1902. [ 1291.179099] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1903. [ 1291.179103] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1904. [ 1291.179104] Code: 44 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 8b 3f 48 39 fb 74 14 48 81 ef c0 03 00 00 e8 db fe ff ff 48 8b 3b <48> 39 fb 75 ec 48 83 c4 08 5b 5d c3 66 90 66 2e 0f 1f 84 00 00
  1905. [ 1319.151509] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1906. [ 1319.151521] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1907. [ 1319.151556] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1908. [ 1319.151561] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1909. [ 1319.151561] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1910. [ 1319.151562] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1911. [ 1319.151563] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1912. [ 1319.151568] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1913. [ 1319.151569] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1914. [ 1319.151570] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1915. [ 1319.151570] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1916. [ 1319.151571] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1917. [ 1319.151572] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1918. [ 1319.151573] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1919. [ 1319.151574] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1920. [ 1319.151574] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1921. [ 1319.151575] Stack:
  1922. [ 1319.151576] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1923. [ 1319.151577] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1924. [ 1319.151578] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1925. [ 1319.151580] Call Trace:
  1926. [ 1319.151594] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1927. [ 1319.151600] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1928. [ 1319.151605] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1929. [ 1319.151610] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1930. [ 1319.151617] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1931. [ 1319.151621] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1932. [ 1319.151624] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1933. [ 1319.151626] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1934. [ 1319.151628] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1935. [ 1319.151630] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1936. [ 1319.151634] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1937. [ 1319.151635] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1938. [ 1319.151637] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1939. [ 1319.151639] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1940. [ 1319.151640] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1941. [ 1319.151642] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1942. [ 1319.151643] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1943. [ 1319.151645] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1944. [ 1319.151647] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1945. [ 1319.151648] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1946. [ 1347.124031] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  1947. [ 1347.124044] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  1948. [ 1347.124080] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  1949. [ 1347.124085] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  1950. [ 1347.124085] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  1951. [ 1347.124087] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  1952. [ 1347.124087] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  1953. [ 1347.124092] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  1954. [ 1347.124093] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  1955. [ 1347.124094] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  1956. [ 1347.124094] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  1957. [ 1347.124095] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  1958. [ 1347.124096] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  1959. [ 1347.124097] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  1960. [ 1347.124098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  1961. [ 1347.124098] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  1962. [ 1347.124099] Stack:
  1963. [ 1347.124100] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  1964. [ 1347.124102] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  1965. [ 1347.124103] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  1966. [ 1347.124104] Call Trace:
  1967. [ 1347.124118] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  1968. [ 1347.124125] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  1969. [ 1347.124131] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  1970. [ 1347.124137] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  1971. [ 1347.124143] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  1972. [ 1347.124147] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  1973. [ 1347.124150] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1974. [ 1347.124152] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1975. [ 1347.124154] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1976. [ 1347.124156] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1977. [ 1347.124160] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  1978. [ 1347.124162] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  1979. [ 1347.124163] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  1980. [ 1347.124165] [<ffffffff811f1078>] mount_fs+0x38/0x160
  1981. [ 1347.124167] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  1982. [ 1347.124168] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  1983. [ 1347.124170] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  1984. [ 1347.124172] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  1985. [ 1347.124173] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  1986. [ 1347.124174] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  1987. [ 1361.350054] INFO: rcu_sched self-detected stall on CPU { 0} (t=150009 jiffies g=9024 c=9023 q=0)
  1988. [ 1361.350059] Task dump for CPU 0:
  1989. [ 1361.350060] mount R running task 0 5753 4780 0x00000008
  1990. [ 1361.350062] ffffffff81c519c0 ffff88021fa03d78 ffffffff810a1449 0000000000000000
  1991. [ 1361.350064] ffffffff81c519c0 ffff88021fa03d98 ffffffff810a3bcb 0000000000000083
  1992. [ 1361.350065] 0000000000000001 ffff88021fa03dc8 ffffffff810d5bb8 ffff88021fa174c0
  1993. [ 1361.350067] Call Trace:
  1994. [ 1361.350068] <IRQ> [<ffffffff810a1449>] sched_show_task+0xa9/0x110
  1995. [ 1361.350074] [<ffffffff810a3bcb>] dump_cpu_task+0x3b/0x50
  1996. [ 1361.350076] [<ffffffff810d5bb8>] rcu_dump_cpu_stacks+0x88/0xd0
  1997. [ 1361.350078] [<ffffffff810d9615>] rcu_check_callbacks+0x485/0x760
  1998. [ 1361.350081] [<ffffffff8112c5fc>] ? acct_account_cputime+0x1c/0x20
  1999. [ 1361.350082] [<ffffffff810a4681>] ? account_system_time+0x81/0x120
  2000. [ 1361.350084] [<ffffffff810ee220>] ? tick_sched_handle.isra.14+0x60/0x60
  2001. [ 1361.350086] [<ffffffff810df429>] update_process_times+0x39/0x60
  2002. [ 1361.350087] [<ffffffff810ee1e5>] tick_sched_handle.isra.14+0x25/0x60
  2003. [ 1361.350088] [<ffffffff810ee264>] tick_sched_timer+0x44/0x80
  2004. [ 1361.350090] [<ffffffff810dfcc4>] __hrtimer_run_queues+0xe4/0x200
  2005. [ 1361.350091] [<ffffffff810e03c8>] hrtimer_interrupt+0xa8/0x1a0
  2006. [ 1361.350093] [<ffffffff8104bccc>] local_apic_timer_interrupt+0x3c/0x70
  2007. [ 1361.350096] [<ffffffff817ba241>] smp_apic_timer_interrupt+0x41/0x60
  2008. [ 1361.350097] [<ffffffff817b83db>] apic_timer_interrupt+0x6b/0x70
  2009. [ 1361.350097] <EOI> [<ffffffff817ae466>] ? printk+0x46/0x48
  2010. [ 1361.350101] [<ffffffff817b72b4>] ? _raw_spin_lock+0x14/0x30
  2011. [ 1361.350112] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  2012. [ 1361.350119] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  2013. [ 1361.350124] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  2014. [ 1361.350130] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  2015. [ 1361.350136] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  2016. [ 1361.350140] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  2017. [ 1361.350142] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2018. [ 1361.350144] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2019. [ 1361.350146] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2020. [ 1361.350148] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2021. [ 1361.350152] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  2022. [ 1361.350154] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2023. [ 1361.350155] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  2024. [ 1361.350157] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2025. [ 1361.350158] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2026. [ 1361.350160] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2027. [ 1361.350162] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  2028. [ 1361.350163] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  2029. [ 1361.350165] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  2030. [ 1387.084771] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  2031. [ 1387.084784] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  2032. [ 1387.084825] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  2033. [ 1387.084831] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  2034. [ 1387.084832] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  2035. [ 1387.084833] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  2036. [ 1387.084834] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  2037. [ 1387.084839] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  2038. [ 1387.084840] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  2039. [ 1387.084841] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  2040. [ 1387.084841] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  2041. [ 1387.084842] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  2042. [ 1387.084843] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  2043. [ 1387.084844] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  2044. [ 1387.084845] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  2045. [ 1387.084846] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  2046. [ 1387.084846] Stack:
  2047. [ 1387.084847] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  2048. [ 1387.084849] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  2049. [ 1387.084850] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  2050. [ 1387.084851] Call Trace:
  2051. [ 1387.084866] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  2052. [ 1387.084873] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  2053. [ 1387.084879] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  2054. [ 1387.084884] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  2055. [ 1387.084891] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  2056. [ 1387.084895] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  2057. [ 1387.084898] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2058. [ 1387.084900] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2059. [ 1387.084902] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2060. [ 1387.084904] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2061. [ 1387.084908] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  2062. [ 1387.084910] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2063. [ 1387.084911] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  2064. [ 1387.084913] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2065. [ 1387.084914] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2066. [ 1387.084916] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2067. [ 1387.084918] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  2068. [ 1387.084920] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  2069. [ 1387.084921] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  2070. [ 1387.084922] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  2071. [ 1415.057289] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  2072. [ 1415.057292] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  2073. [ 1415.057350] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  2074. [ 1415.057355] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  2075. [ 1415.057356] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  2076. [ 1415.057357] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  2077. [ 1415.057358] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  2078. [ 1415.057364] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  2079. [ 1415.057364] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  2080. [ 1415.057365] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  2081. [ 1415.057366] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  2082. [ 1415.057367] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  2083. [ 1415.057367] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  2084. [ 1415.057368] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  2085. [ 1415.057369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  2086. [ 1415.057370] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  2087. [ 1415.057371] Stack:
  2088. [ 1415.057372] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  2089. [ 1415.057373] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  2090. [ 1415.057374] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  2091. [ 1415.057376] Call Trace:
  2092. [ 1415.057391] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  2093. [ 1415.057398] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  2094. [ 1415.057404] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  2095. [ 1415.057409] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  2096. [ 1415.057416] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  2097. [ 1415.057420] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  2098. [ 1415.057423] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2099. [ 1415.057425] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2100. [ 1415.057428] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2101. [ 1415.057430] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2102. [ 1415.057434] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  2103. [ 1415.057436] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2104. [ 1415.057438] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  2105. [ 1415.057439] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2106. [ 1415.057441] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2107. [ 1415.057442] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2108. [ 1415.057444] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  2109. [ 1415.057446] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  2110. [ 1415.057448] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  2111. [ 1415.057448] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  2112. [ 1443.029806] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  2113. [ 1443.029808] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  2114. [ 1443.029865] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  2115. [ 1443.029869] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  2116. [ 1443.029870] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  2117. [ 1443.029871] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  2118. [ 1443.029872] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  2119. [ 1443.029876] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  2120. [ 1443.029877] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  2121. [ 1443.029878] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  2122. [ 1443.029879] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  2123. [ 1443.029880] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  2124. [ 1443.029880] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  2125. [ 1443.029881] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  2126. [ 1443.029882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  2127. [ 1443.029883] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  2128. [ 1443.029884] Stack:
  2129. [ 1443.029884] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  2130. [ 1443.029886] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  2131. [ 1443.029887] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  2132. [ 1443.029889] Call Trace:
  2133. [ 1443.029903] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  2134. [ 1443.029909] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  2135. [ 1443.029915] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  2136. [ 1443.029921] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  2137. [ 1443.029927] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  2138. [ 1443.029931] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  2139. [ 1443.029934] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2140. [ 1443.029936] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2141. [ 1443.029938] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2142. [ 1443.029940] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2143. [ 1443.029945] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  2144. [ 1443.029946] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2145. [ 1443.029948] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  2146. [ 1443.029950] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2147. [ 1443.029951] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2148. [ 1443.029953] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2149. [ 1443.029954] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  2150. [ 1443.029956] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  2151. [ 1443.029958] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  2152. [ 1443.029959] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
  2153. [ 1471.002322] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mount:5753]
  2154. [ 1471.002324] Modules linked in: dm_crypt drbg ansi_cprng algif_skcipher af_alg hid_generic bnep bluetooth intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp eeepc_wmi coretemp asus_wmi sparse_keymap kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel aesni_intel snd_hda_codec snd_hda_core aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper snd_pcm cryptd snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq input_leds joydev snd_seq_device snd_timer serio_raw mei_me snd lpc_ich mei soundcore 8250_fintek soc_button_array shpchp mac_hid parport_pc ppdev lp parport autofs4 squashfs overlay nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_logitech ff_memless usbhid hid uas usb_storage psmouse i915 ahci
  2155. [ 1471.002382] i2c_algo_bit drm_kms_helper libahci e1000e drm ptp sata_via pps_core wmi video
  2156. [ 1471.002387] CPU: 0 PID: 5753 Comm: mount Tainted: G W L 4.2.0-12-generic #14-Ubuntu
  2157. [ 1471.002388] Hardware name: ASUS All Series/B85-PLUS, BIOS 0904 10/29/2013
  2158. [ 1471.002389] task: ffff8800ae85e040 ti: ffff8801d3dd8000 task.ti: ffff8801d3dd8000
  2159. [ 1471.002390] RIP: 0010:[<ffffffff817b72b4>] [<ffffffff817b72b4>] _raw_spin_lock+0x14/0x30
  2160. [ 1471.002395] RSP: 0018:ffff8801d3ddb938 EFLAGS: 00000246
  2161. [ 1471.002396] RAX: 0000000000000000 RBX: ffffffff817ae466 RCX: 0000000000000006
  2162. [ 1471.002397] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff880215228d70
  2163. [ 1471.002398] RBP: ffff8801d3ddb938 R08: 000000000000000a R09: 00000000000007cd
  2164. [ 1471.002398] R10: 000000000002641c R11: 00000000000007cd R12: ffffffff810cac89
  2165. [ 1471.002399] R13: ffff8801d3ddb8a8 R14: ffff880215228000 R15: ffff8801d3ddb9a8
  2166. [ 1471.002400] FS: 00007f6a0430b840(0000) GS:ffff88021fa00000(0000) knlGS:0000000000000000
  2167. [ 1471.002401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  2168. [ 1471.002402] CR2: 00007faa43132000 CR3: 00000001d3efd000 CR4: 00000000001406f0
  2169. [ 1471.002402] Stack:
  2170. [ 1471.002403] ffff8801d3ddb968 ffffffffc0385e60 ffff8801d3ddb9a8 ffff880215228800
  2171. [ 1471.002404] ffff8800b2c5f000 ffff8801d3ddb9a8 ffff8801d3ddb988 ffffffffc0385f55
  2172. [ 1471.002406] ffff8802152283c0 ffff8802152283c0 ffff8801d3ddb9e8 ffffffffc038c47e
  2173. [ 1471.002407] Call Trace:
  2174. [ 1471.002421] [<ffffffffc0385e60>] __del_reloc_root+0x30/0x100 [btrfs]
  2175. [ 1471.002427] [<ffffffffc0385f55>] free_reloc_roots+0x25/0x40 [btrfs]
  2176. [ 1471.002433] [<ffffffffc038c47e>] merge_reloc_roots+0x18e/0x240 [btrfs]
  2177. [ 1471.002439] [<ffffffffc038d1f4>] btrfs_recover_relocation+0x374/0x420 [btrfs]
  2178. [ 1471.002445] [<ffffffffc0336f6d>] open_ctree+0x1b7d/0x23e0 [btrfs]
  2179. [ 1471.002449] [<ffffffffc030d72e>] btrfs_mount+0x94e/0xa70 [btrfs]
  2180. [ 1471.002452] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2181. [ 1471.002454] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2182. [ 1471.002456] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2183. [ 1471.002459] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2184. [ 1471.002463] [<ffffffffc030cfc8>] btrfs_mount+0x1e8/0xa70 [btrfs]
  2185. [ 1471.002465] [<ffffffff813bc0c5>] ? find_next_bit+0x15/0x20
  2186. [ 1471.002466] [<ffffffff8119845f>] ? pcpu_alloc+0x35f/0x660
  2187. [ 1471.002468] [<ffffffff811f1078>] mount_fs+0x38/0x160
  2188. [ 1471.002469] [<ffffffff81198795>] ? __alloc_percpu+0x15/0x20
  2189. [ 1471.002471] [<ffffffff8120c02b>] vfs_kern_mount+0x6b/0x120
  2190. [ 1471.002472] [<ffffffff8120e76e>] do_mount+0x21e/0xce0
  2191. [ 1471.002474] [<ffffffff8120f54c>] SyS_mount+0x8c/0xd0
  2192. [ 1471.002476] [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
  2193. [ 1471.002477] Code: b1 17 85 c0 75 02 5d c3 89 c6 e8 c8 5c 90 ff 66 90 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 31 c0 ba 01 00 00 00 f0 0f b1 17 <85> c0 75 02 5d c3 89 c6 e8 9f 5c 90 ff 66 90 5d c3 90 66 2e 0f
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