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  1. [ 860.764509] nebula kernel: INFO: task kworker/u16:0:7 blocked for more than 120 seconds.
  2. [ 860.764513] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  3. [ 860.764514] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  4. [ 860.764516] nebula kernel: kworker/u16:0 D 0 7 2 0x80000000
  5. [ 860.764581] nebula kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
  6. [ 860.764583] nebula kernel: Call Trace:
  7. [ 860.764597] nebula kernel: ? __schedule+0x29b/0x8b0
  8. [ 860.764603] nebula kernel: ? preempt_count_add+0x79/0xb0
  9. [ 860.764606] nebula kernel: schedule+0x32/0x90
  10. [ 860.764628] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  11. [ 860.764644] nebula kernel: ? wait_woken+0x80/0x80
  12. [ 860.764666] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  13. [ 860.764680] nebula kernel: ? preempt_count_add+0x79/0xb0
  14. [ 860.764713] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  15. [ 860.764734] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  16. [ 860.764766] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  17. [ 860.764797] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  18. [ 860.764829] nebula kernel: btrfs_add_delayed_tree_ref+0x35f/0x3a0 [btrfs]
  19. [ 860.764856] nebula kernel: btrfs_inc_extent_ref+0xba/0xf0 [btrfs]
  20. [ 860.764885] nebula kernel: __btrfs_mod_ref+0x15a/0x240 [btrfs]
  21. [ 860.764903] nebula kernel: ? add_pinned_bytes+0x40/0x40 [btrfs]
  22. [ 860.764939] nebula kernel: update_ref_for_cow+0xfc/0x300 [btrfs]
  23. [ 860.764966] nebula kernel: __btrfs_cow_block+0x267/0x520 [btrfs]
  24. [ 860.764993] nebula kernel: btrfs_cow_block+0xdc/0x1a0 [btrfs]
  25. [ 860.765009] nebula kernel: btrfs_search_slot+0x282/0xa00 [btrfs]
  26. [ 860.765013] nebula kernel: ? preempt_count_add+0x79/0xb0
  27. [ 860.765031] nebula kernel: btrfs_lookup_inode+0x3a/0xc0 [btrfs]
  28. [ 860.765072] nebula kernel: ? btrfs_delete_delayed_items+0x1d2/0x350 [btrfs]
  29. [ 860.765103] nebula kernel: __btrfs_update_delayed_inode+0x75/0x220 [btrfs]
  30. [ 860.765133] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  31. [ 860.765164] nebula kernel: btrfs_async_run_delayed_root+0x148/0x1f0 [btrfs]
  32. [ 860.765196] nebula kernel: normal_work_helper+0x1ab/0x350 [btrfs]
  33. [ 860.765201] nebula kernel: process_one_work+0x1eb/0x410
  34. [ 860.765204] nebula kernel: worker_thread+0x2d/0x3d0
  35. [ 860.765207] nebula kernel: ? process_one_work+0x410/0x410
  36. [ 860.765209] nebula kernel: kthread+0x112/0x130
  37. [ 860.765211] nebula kernel: ? kthread_park+0x80/0x80
  38. [ 860.765215] nebula kernel: ret_from_fork+0x22/0x40
  39. [ 860.765259] nebula kernel: INFO: task btrfs-cleaner:618 blocked for more than 120 seconds.
  40. [ 860.765260] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  41. [ 860.765261] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  42. [ 860.765262] nebula kernel: btrfs-cleaner D 0 618 2 0x80000080
  43. [ 860.765264] nebula kernel: Call Trace:
  44. [ 860.765267] nebula kernel: ? __schedule+0x29b/0x8b0
  45. [ 860.765269] nebula kernel: ? preempt_count_add+0x79/0xb0
  46. [ 860.765272] nebula kernel: schedule+0x32/0x90
  47. [ 860.765308] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  48. [ 860.765311] nebula kernel: ? wait_woken+0x80/0x80
  49. [ 860.765342] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  50. [ 860.765348] nebula kernel: ? wait_on_page_bit+0xfd/0x130
  51. [ 860.765370] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  52. [ 860.765401] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  53. [ 860.765432] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  54. [ 860.765464] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  55. [ 860.765494] nebula kernel: btrfs_qgroup_trace_leaf_items+0x10b/0x140 [btrfs]
  56. [ 860.765526] nebula kernel: btrfs_qgroup_trace_subtree+0x3b1/0x440 [btrfs]
  57. [ 860.765558] nebula kernel: ? btrfs_tree_lock+0x56/0x1f0 [btrfs]
  58. [ 860.765585] nebula kernel: do_walk_down+0x413/0x580 [btrfs]
  59. [ 860.765613] nebula kernel: ? walk_up_proc+0x95/0x400 [btrfs]
  60. [ 860.765631] nebula kernel: walk_down_tree+0xc1/0x100 [btrfs]
  61. [ 860.765658] nebula kernel: btrfs_drop_snapshot+0x371/0x7f0 [btrfs]
  62. [ 860.765671] nebula kernel: ? __schedule+0x2a3/0x8b0
  63. [ 860.765689] nebula kernel: ? btrfs_destroy_pinned_extent+0xf0/0xf0 [btrfs]
  64. [ 860.765717] nebula kernel: btrfs_clean_one_deleted_snapshot+0xb8/0xf0 [btrfs]
  65. [ 860.765746] nebula kernel: cleaner_kthread+0x129/0x160 [btrfs]
  66. [ 860.765749] nebula kernel: kthread+0x112/0x130
  67. [ 860.765751] nebula kernel: ? kthread_park+0x80/0x80
  68. [ 860.765753] nebula kernel: ret_from_fork+0x22/0x40
  69. [ 860.765756] nebula kernel: INFO: task btrfs-transacti:619 blocked for more than 120 seconds.
  70. [ 860.765757] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  71. [ 860.765758] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  72. [ 860.765759] nebula kernel: btrfs-transacti D 0 619 2 0x80000080
  73. [ 860.765760] nebula kernel: Call Trace:
  74. [ 860.765763] nebula kernel: ? __schedule+0x29b/0x8b0
  75. [ 860.765765] nebula kernel: ? preempt_count_add+0x79/0xb0
  76. [ 860.765768] nebula kernel: schedule+0x32/0x90
  77. [ 860.765770] nebula kernel: schedule_preempt_disabled+0x14/0x20
  78. [ 860.765772] nebula kernel: __mutex_lock.isra.1+0x217/0x530
  79. [ 860.765795] nebula kernel: btrfs_insert_delayed_items+0x3d/0x480 [btrfs]
  80. [ 860.765827] nebula kernel: __btrfs_run_delayed_items+0x96/0x1d0 [btrfs]
  81. [ 860.765856] nebula kernel: btrfs_commit_transaction+0x18a/0x870 [btrfs]
  82. [ 860.765885] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  83. [ 860.765909] nebula kernel: transaction_kthread+0x13f/0x170 [btrfs]
  84. [ 860.765938] nebula kernel: ? btrfs_cleanup_transaction+0x560/0x560 [btrfs]
  85. [ 860.765949] nebula kernel: kthread+0x112/0x130
  86. [ 860.765951] nebula kernel: ? kthread_park+0x80/0x80
  87. [ 860.765953] nebula kernel: ret_from_fork+0x22/0x40
  88. [ 860.765965] nebula kernel: INFO: task btrfs:709 blocked for more than 120 seconds.
  89. [ 860.765966] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  90. [ 860.765966] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  91. [ 860.765967] nebula kernel: btrfs D 0 709 706 0x00000080
  92. [ 860.765969] nebula kernel: Call Trace:
  93. [ 860.765972] nebula kernel: ? __schedule+0x29b/0x8b0
  94. [ 860.765975] nebula kernel: ? preempt_count_add+0x79/0xb0
  95. [ 860.765977] nebula kernel: schedule+0x32/0x90
  96. [ 860.766010] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  97. [ 860.766012] nebula kernel: ? wait_woken+0x80/0x80
  98. [ 860.766029] nebula kernel: btrfs_search_slot+0x7dd/0xa00 [btrfs]
  99. [ 860.766067] nebula kernel: btrfs_lookup_dir_item+0x79/0xd0 [btrfs]
  100. [ 860.766097] nebula kernel: btrfs_lookup_dentry+0xcb/0x4b0 [btrfs]
  101. [ 860.766129] nebula kernel: btrfs_lookup+0xe/0x30 [btrfs]
  102. [ 860.766133] nebula kernel: __lookup_slow+0x97/0x160
  103. [ 860.766136] nebula kernel: lookup_slow+0x35/0x50
  104. [ 860.766139] nebula kernel: walk_component+0x1bd/0x2d0
  105. [ 860.766143] nebula kernel: path_lookupat.isra.13+0x71/0x230
  106. [ 860.766162] nebula kernel: ? btrfs_dirty_inode+0x79/0xd0 [btrfs]
  107. [ 860.766175] nebula kernel: filename_lookup.part.21+0xa0/0x170
  108. [ 860.766179] nebula kernel: ? __check_object_size+0x102/0x189
  109. [ 860.766183] nebula kernel: ? strncpy_from_user+0x4a/0x160
  110. [ 860.766185] nebula kernel: ? getname_flags+0x6a/0x1e0
  111. [ 860.766188] nebula kernel: do_utimes+0xd9/0x160
  112. [ 860.766192] nebula kernel: ? _copy_from_user+0x37/0x60
  113. [ 860.766194] nebula kernel: __se_sys_utimensat+0x76/0xc0
  114. [ 860.766197] nebula kernel: ? ksys_read+0x4f/0xb0
  115. [ 860.766201] nebula kernel: do_syscall_64+0x5b/0x170
  116. [ 860.766203] nebula kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
  117. [ 860.766207] nebula kernel: RIP: 0033:0x7f777dfc0693
  118. [ 860.766214] nebula kernel: Code: Bad RIP value.
  119. [ 860.766216] nebula kernel: RSP: 002b:00007fff36e28bb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000118
  120. [ 860.766218] nebula kernel: RAX: ffffffffffffffda RBX: 00007fff36e29cc0 RCX: 00007f777dfc0693
  121. [ 860.766219] nebula kernel: RDX: 00007fff36e28bc0 RSI: 00007fff36e28be0 RDI: 00000000ffffff9c
  122. [ 860.766220] nebula kernel: RBP: 00007fff36e28be0 R08: 000055ee5f9d4a90 R09: 00007fff36e28550
  123. [ 860.766221] nebula kernel: R10: 0000000000000100 R11: 0000000000000202 R12: 000055ee5f9d4a90
  124. [ 860.766222] nebula kernel: R13: 00007fff36e29cc0 R14: 00007fff36e29ca0 R15: 00007fff36e29ca0
  125. [ 926.979985] nebula kernel: audit: type=1130 audit(1544999884.444:31): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
  126. [ 926.979994] nebula kernel: audit: type=1131 audit(1544999884.444:32): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
  127. [ 983.645920] nebula kernel: INFO: task kworker/u16:0:7 blocked for more than 120 seconds.
  128. [ 983.645923] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  129. [ 983.645924] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  130. [ 983.645926] nebula kernel: kworker/u16:0 D 0 7 2 0x80000000
  131. [ 983.645989] nebula kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
  132. [ 983.645991] nebula kernel: Call Trace:
  133. [ 983.646005] nebula kernel: ? __schedule+0x29b/0x8b0
  134. [ 983.646011] nebula kernel: ? preempt_count_add+0x79/0xb0
  135. [ 983.646014] nebula kernel: schedule+0x32/0x90
  136. [ 983.646039] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  137. [ 983.646045] nebula kernel: ? wait_woken+0x80/0x80
  138. [ 983.646077] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  139. [ 983.646080] nebula kernel: ? preempt_count_add+0x79/0xb0
  140. [ 983.646114] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  141. [ 983.646135] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  142. [ 983.646166] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  143. [ 983.646197] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  144. [ 983.646239] nebula kernel: btrfs_add_delayed_tree_ref+0x35f/0x3a0 [btrfs]
  145. [ 983.646267] nebula kernel: btrfs_inc_extent_ref+0xba/0xf0 [btrfs]
  146. [ 983.646296] nebula kernel: __btrfs_mod_ref+0x15a/0x240 [btrfs]
  147. [ 983.646323] nebula kernel: ? add_pinned_bytes+0x40/0x40 [btrfs]
  148. [ 983.646349] nebula kernel: update_ref_for_cow+0xfc/0x300 [btrfs]
  149. [ 983.646366] nebula kernel: __btrfs_cow_block+0x267/0x520 [btrfs]
  150. [ 983.646393] nebula kernel: btrfs_cow_block+0xdc/0x1a0 [btrfs]
  151. [ 983.646420] nebula kernel: btrfs_search_slot+0x282/0xa00 [btrfs]
  152. [ 983.646432] nebula kernel: ? preempt_count_add+0x79/0xb0
  153. [ 983.646460] nebula kernel: btrfs_lookup_inode+0x3a/0xc0 [btrfs]
  154. [ 983.646492] nebula kernel: ? btrfs_delete_delayed_items+0x1d2/0x350 [btrfs]
  155. [ 983.646523] nebula kernel: __btrfs_update_delayed_inode+0x75/0x220 [btrfs]
  156. [ 983.646553] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  157. [ 983.646584] nebula kernel: btrfs_async_run_delayed_root+0x148/0x1f0 [btrfs]
  158. [ 983.646606] nebula kernel: normal_work_helper+0x1ab/0x350 [btrfs]
  159. [ 983.646621] nebula kernel: process_one_work+0x1eb/0x410
  160. [ 983.646624] nebula kernel: worker_thread+0x2d/0x3d0
  161. [ 983.646626] nebula kernel: ? process_one_work+0x410/0x410
  162. [ 983.646628] nebula kernel: kthread+0x112/0x130
  163. [ 983.646631] nebula kernel: ? kthread_park+0x80/0x80
  164. [ 983.646634] nebula kernel: ret_from_fork+0x22/0x40
  165. [ 983.646695] nebula kernel: INFO: task btrfs-cleaner:618 blocked for more than 120 seconds.
  166. [ 983.646696] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  167. [ 983.646697] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  168. [ 983.646698] nebula kernel: btrfs-cleaner D 0 618 2 0x80000080
  169. [ 983.646700] nebula kernel: Call Trace:
  170. [ 983.646703] nebula kernel: ? __schedule+0x29b/0x8b0
  171. [ 983.646706] nebula kernel: ? preempt_count_add+0x79/0xb0
  172. [ 983.646708] nebula kernel: schedule+0x32/0x90
  173. [ 983.646734] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  174. [ 983.646737] nebula kernel: ? wait_woken+0x80/0x80
  175. [ 983.646758] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  176. [ 983.646774] nebula kernel: ? wait_on_page_bit+0xfd/0x130
  177. [ 983.646805] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  178. [ 983.646826] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  179. [ 983.646867] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  180. [ 983.646889] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  181. [ 983.646920] nebula kernel: btrfs_qgroup_trace_leaf_items+0x10b/0x140 [btrfs]
  182. [ 983.646951] nebula kernel: btrfs_qgroup_trace_subtree+0x3b1/0x440 [btrfs]
  183. [ 983.646983] nebula kernel: ? btrfs_tree_lock+0x56/0x1f0 [btrfs]
  184. [ 983.647010] nebula kernel: do_walk_down+0x413/0x580 [btrfs]
  185. [ 983.647038] nebula kernel: ? walk_up_proc+0x95/0x400 [btrfs]
  186. [ 983.647066] nebula kernel: walk_down_tree+0xc1/0x100 [btrfs]
  187. [ 983.647093] nebula kernel: btrfs_drop_snapshot+0x371/0x7f0 [btrfs]
  188. [ 983.647106] nebula kernel: ? __schedule+0x2a3/0x8b0
  189. [ 983.647133] nebula kernel: ? btrfs_destroy_pinned_extent+0xf0/0xf0 [btrfs]
  190. [ 983.647152] nebula kernel: btrfs_clean_one_deleted_snapshot+0xb8/0xf0 [btrfs]
  191. [ 983.647180] nebula kernel: cleaner_kthread+0x129/0x160 [btrfs]
  192. [ 983.647192] nebula kernel: kthread+0x112/0x130
  193. [ 983.647194] nebula kernel: ? kthread_park+0x80/0x80
  194. [ 983.647196] nebula kernel: ret_from_fork+0x22/0x40
  195. [ 983.647200] nebula kernel: INFO: task btrfs-transacti:619 blocked for more than 120 seconds.
  196. [ 983.647201] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  197. [ 983.647201] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  198. [ 983.647202] nebula kernel: btrfs-transacti D 0 619 2 0x80000080
  199. [ 983.647204] nebula kernel: Call Trace:
  200. [ 983.647208] nebula kernel: ? __schedule+0x29b/0x8b0
  201. [ 983.647210] nebula kernel: ? preempt_count_add+0x79/0xb0
  202. [ 983.647212] nebula kernel: schedule+0x32/0x90
  203. [ 983.647214] nebula kernel: schedule_preempt_disabled+0x14/0x20
  204. [ 983.647216] nebula kernel: __mutex_lock.isra.1+0x217/0x530
  205. [ 983.647239] nebula kernel: btrfs_insert_delayed_items+0x3d/0x480 [btrfs]
  206. [ 983.647281] nebula kernel: __btrfs_run_delayed_items+0x96/0x1d0 [btrfs]
  207. [ 983.647310] nebula kernel: btrfs_commit_transaction+0x18a/0x870 [btrfs]
  208. [ 983.647339] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  209. [ 983.647368] nebula kernel: transaction_kthread+0x13f/0x170 [btrfs]
  210. [ 983.647396] nebula kernel: ? btrfs_cleanup_transaction+0x560/0x560 [btrfs]
  211. [ 983.647398] nebula kernel: kthread+0x112/0x130
  212. [ 983.647400] nebula kernel: ? kthread_park+0x80/0x80
  213. [ 983.647402] nebula kernel: ret_from_fork+0x22/0x40
  214. [ 983.647418] nebula kernel: INFO: task btrfs:709 blocked for more than 120 seconds.
  215. [ 983.647419] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  216. [ 983.647419] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  217. [ 983.647420] nebula kernel: btrfs D 0 709 706 0x00000080
  218. [ 983.647422] nebula kernel: Call Trace:
  219. [ 983.647425] nebula kernel: ? __schedule+0x29b/0x8b0
  220. [ 983.647427] nebula kernel: ? preempt_count_add+0x79/0xb0
  221. [ 983.647432] nebula kernel: schedule+0x32/0x90
  222. [ 983.647463] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  223. [ 983.647465] nebula kernel: ? wait_woken+0x80/0x80
  224. [ 983.647481] nebula kernel: btrfs_search_slot+0x7dd/0xa00 [btrfs]
  225. [ 983.647519] nebula kernel: btrfs_lookup_dir_item+0x79/0xd0 [btrfs]
  226. [ 983.647550] nebula kernel: btrfs_lookup_dentry+0xcb/0x4b0 [btrfs]
  227. [ 983.647581] nebula kernel: btrfs_lookup+0xe/0x30 [btrfs]
  228. [ 983.647585] nebula kernel: __lookup_slow+0x97/0x160
  229. [ 983.647588] nebula kernel: lookup_slow+0x35/0x50
  230. [ 983.647591] nebula kernel: walk_component+0x1bd/0x2d0
  231. [ 983.647595] nebula kernel: path_lookupat.isra.13+0x71/0x230
  232. [ 983.647614] nebula kernel: ? btrfs_dirty_inode+0x79/0xd0 [btrfs]
  233. [ 983.647626] nebula kernel: filename_lookup.part.21+0xa0/0x170
  234. [ 983.647631] nebula kernel: ? __check_object_size+0x102/0x189
  235. [ 983.647634] nebula kernel: ? strncpy_from_user+0x4a/0x160
  236. [ 983.647636] nebula kernel: ? getname_flags+0x6a/0x1e0
  237. [ 983.647639] nebula kernel: do_utimes+0xd9/0x160
  238. [ 983.647643] nebula kernel: ? _copy_from_user+0x37/0x60
  239. [ 983.647645] nebula kernel: __se_sys_utimensat+0x76/0xc0
  240. [ 983.647648] nebula kernel: ? ksys_read+0x4f/0xb0
  241. [ 983.647653] nebula kernel: do_syscall_64+0x5b/0x170
  242. [ 983.647655] nebula kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
  243. [ 983.647658] nebula kernel: RIP: 0033:0x7f777dfc0693
  244. [ 983.647665] nebula kernel: Code: Bad RIP value.
  245. [ 983.647666] nebula kernel: RSP: 002b:00007fff36e28bb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000118
  246. [ 983.647669] nebula kernel: RAX: ffffffffffffffda RBX: 00007fff36e29cc0 RCX: 00007f777dfc0693
  247. [ 983.647670] nebula kernel: RDX: 00007fff36e28bc0 RSI: 00007fff36e28be0 RDI: 00000000ffffff9c
  248. [ 983.647671] nebula kernel: RBP: 00007fff36e28be0 R08: 000055ee5f9d4a90 R09: 00007fff36e28550
  249. [ 983.647672] nebula kernel: R10: 0000000000000100 R11: 0000000000000202 R12: 000055ee5f9d4a90
  250. [ 983.647673] nebula kernel: R13: 00007fff36e29cc0 R14: 00007fff36e29ca0 R15: 00007fff36e29ca0
  251. [ 1106.532478] nebula kernel: INFO: task kworker/u16:0:7 blocked for more than 120 seconds.
  252. [ 1106.532480] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  253. [ 1106.532481] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  254. [ 1106.532483] nebula kernel: kworker/u16:0 D 0 7 2 0x80000000
  255. [ 1106.532540] nebula kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
  256. [ 1106.532542] nebula kernel: Call Trace:
  257. [ 1106.532552] nebula kernel: ? __schedule+0x29b/0x8b0
  258. [ 1106.532557] nebula kernel: ? preempt_count_add+0x79/0xb0
  259. [ 1106.532560] nebula kernel: schedule+0x32/0x90
  260. [ 1106.532591] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  261. [ 1106.532595] nebula kernel: ? wait_woken+0x80/0x80
  262. [ 1106.532626] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  263. [ 1106.532629] nebula kernel: ? preempt_count_add+0x79/0xb0
  264. [ 1106.532653] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  265. [ 1106.532684] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  266. [ 1106.532715] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  267. [ 1106.532747] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  268. [ 1106.532778] nebula kernel: btrfs_add_delayed_tree_ref+0x35f/0x3a0 [btrfs]
  269. [ 1106.532806] nebula kernel: btrfs_inc_extent_ref+0xba/0xf0 [btrfs]
  270. [ 1106.532834] nebula kernel: __btrfs_mod_ref+0x15a/0x240 [btrfs]
  271. [ 1106.532860] nebula kernel: ? add_pinned_bytes+0x40/0x40 [btrfs]
  272. [ 1106.532877] nebula kernel: update_ref_for_cow+0xfc/0x300 [btrfs]
  273. [ 1106.532903] nebula kernel: __btrfs_cow_block+0x267/0x520 [btrfs]
  274. [ 1106.532930] nebula kernel: btrfs_cow_block+0xdc/0x1a0 [btrfs]
  275. [ 1106.532946] nebula kernel: btrfs_search_slot+0x282/0xa00 [btrfs]
  276. [ 1106.532959] nebula kernel: ? preempt_count_add+0x79/0xb0
  277. [ 1106.532986] nebula kernel: btrfs_lookup_inode+0x3a/0xc0 [btrfs]
  278. [ 1106.533008] nebula kernel: ? btrfs_delete_delayed_items+0x1d2/0x350 [btrfs]
  279. [ 1106.533039] nebula kernel: __btrfs_update_delayed_inode+0x75/0x220 [btrfs]
  280. [ 1106.533068] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  281. [ 1106.533099] nebula kernel: btrfs_async_run_delayed_root+0x148/0x1f0 [btrfs]
  282. [ 1106.533131] nebula kernel: normal_work_helper+0x1ab/0x350 [btrfs]
  283. [ 1106.533144] nebula kernel: process_one_work+0x1eb/0x410
  284. [ 1106.533147] nebula kernel: worker_thread+0x2d/0x3d0
  285. [ 1106.533150] nebula kernel: ? process_one_work+0x410/0x410
  286. [ 1106.533152] nebula kernel: kthread+0x112/0x130
  287. [ 1106.533153] nebula kernel: ? kthread_park+0x80/0x80
  288. [ 1106.533157] nebula kernel: ret_from_fork+0x22/0x40
  289. [ 1106.533206] nebula kernel: INFO: task btrfs-cleaner:618 blocked for more than 120 seconds.
  290. [ 1106.533207] nebula kernel: Not tainted 4.19.8-arch1-1-ARCH #1
  291. [ 1106.533208] nebula kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  292. [ 1106.533208] nebula kernel: btrfs-cleaner D 0 618 2 0x80000080
  293. [ 1106.533210] nebula kernel: Call Trace:
  294. [ 1106.533213] nebula kernel: ? __schedule+0x29b/0x8b0
  295. [ 1106.533216] nebula kernel: ? preempt_count_add+0x79/0xb0
  296. [ 1106.533220] nebula kernel: schedule+0x32/0x90
  297. [ 1106.533243] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  298. [ 1106.533252] nebula kernel: ? wait_woken+0x80/0x80
  299. [ 1106.533273] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  300. [ 1106.533289] nebula kernel: ? wait_on_page_bit+0xfd/0x130
  301. [ 1106.533320] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  302. [ 1106.533341] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  303. [ 1106.533372] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  304. [ 1106.533403] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  305. [ 1106.533434] nebula kernel: btrfs_qgroup_trace_leaf_items+0x10b/0x140 [btrfs]
  306. [ 1106.533465] nebula kernel: btrfs_qgroup_trace_subtree+0x3b1/0x440 [btrfs]
  307. [ 1106.533497] nebula kernel: ? btrfs_tree_lock+0x56/0x1f0 [btrfs]
  308. [ 1106.533523] nebula kernel: do_walk_down+0x413/0x580 [btrfs]
  309. [ 1106.533551] nebula kernel: ? walk_up_proc+0x95/0x400 [btrfs]
  310. [ 1106.533578] nebula kernel: walk_down_tree+0xc1/0x100 [btrfs]
  311. [ 1106.533605] nebula kernel: btrfs_drop_snapshot+0x371/0x7f0 [btrfs]
  312. [ 1106.533618] nebula kernel: ? __schedule+0x2a3/0x8b0
  313. [ 1106.533645] nebula kernel: ? btrfs_destroy_pinned_extent+0xf0/0xf0 [btrfs]
  314. [ 1106.533673] nebula kernel: btrfs_clean_one_deleted_snapshot+0xb8/0xf0 [btrfs]
  315. [ 1106.533701] nebula kernel: cleaner_kthread+0x129/0x160 [btrfs]
  316. [ 1106.533704] nebula kernel: kthread+0x112/0x130
  317. [ 1106.533705] nebula kernel: ? kthread_park+0x80/0x80
  318. [ 1106.533711] nebula kernel: ret_from_fork+0x22/0x40
  319. [14120.613452] nebula kernel: audit: type=1006 audit(1545013077.590:33): pid=730 uid=0 old-auid=4294967295 auid=1000 tty=(none) old-ses=4294967295 ses=3 res=1
  320. [14661.133343] nebula kernel: audit: type=1006 audit(1545013618.091:34): pid=817 uid=0 old-auid=4294967295 auid=1000 tty=(none) old-ses=4294967295 ses=4 res=1
  321. [14920.612005] nebula kernel: sysrq: SysRq : Show Blocked State
  322. [14920.612012] nebula kernel: task PC stack pid father
  323. [14920.612019] nebula kernel: kworker/u16:0 D 0 7 2 0x80000000
  324. [14920.612084] nebula kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
  325. [14920.612097] nebula kernel: Call Trace:
  326. [14920.612110] nebula kernel: ? __schedule+0x29b/0x8b0
  327. [14920.612116] nebula kernel: ? preempt_count_add+0x79/0xb0
  328. [14920.612119] nebula kernel: schedule+0x32/0x90
  329. [14920.612150] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  330. [14920.612175] nebula kernel: ? wait_woken+0x80/0x80
  331. [14920.612197] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  332. [14920.612215] nebula kernel: ? preempt_count_add+0x79/0xb0
  333. [14920.612239] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  334. [14920.612260] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  335. [14920.612283] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  336. [14920.612305] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  337. [14920.612327] nebula kernel: btrfs_add_delayed_tree_ref+0x35f/0x3a0 [btrfs]
  338. [14920.612346] nebula kernel: btrfs_inc_extent_ref+0xba/0xf0 [btrfs]
  339. [14920.612364] nebula kernel: __btrfs_mod_ref+0x15a/0x240 [btrfs]
  340. [14920.612395] nebula kernel: ? add_pinned_bytes+0x40/0x40 [btrfs]
  341. [14920.612418] nebula kernel: update_ref_for_cow+0xfc/0x300 [btrfs]
  342. [14920.612436] nebula kernel: __btrfs_cow_block+0x267/0x520 [btrfs]
  343. [14920.612463] nebula kernel: btrfs_cow_block+0xdc/0x1a0 [btrfs]
  344. [14920.612485] nebula kernel: btrfs_search_slot+0x282/0xa00 [btrfs]
  345. [14920.612489] nebula kernel: ? preempt_count_add+0x79/0xb0
  346. [14920.612507] nebula kernel: btrfs_lookup_inode+0x3a/0xc0 [btrfs]
  347. [14920.612539] nebula kernel: ? btrfs_delete_delayed_items+0x1d2/0x350 [btrfs]
  348. [14920.612574] nebula kernel: __btrfs_update_delayed_inode+0x75/0x220 [btrfs]
  349. [14920.612600] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  350. [14920.612631] nebula kernel: btrfs_async_run_delayed_root+0x148/0x1f0 [btrfs]
  351. [14920.612668] nebula kernel: normal_work_helper+0x1ab/0x350 [btrfs]
  352. [14920.612678] nebula kernel: process_one_work+0x1eb/0x410
  353. [14920.612682] nebula kernel: worker_thread+0x2d/0x3d0
  354. [14920.612684] nebula kernel: ? process_one_work+0x410/0x410
  355. [14920.612686] nebula kernel: kthread+0x112/0x130
  356. [14920.612689] nebula kernel: ? kthread_park+0x80/0x80
  357. [14920.612692] nebula kernel: ret_from_fork+0x22/0x40
  358. [14920.612796] nebula kernel: btrfs-cleaner D 0 618 2 0x80000080
  359. [14920.612798] nebula kernel: Call Trace:
  360. [14920.612802] nebula kernel: ? __schedule+0x29b/0x8b0
  361. [14920.612804] nebula kernel: ? preempt_count_add+0x79/0xb0
  362. [14920.612807] nebula kernel: schedule+0x32/0x90
  363. [14920.612839] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  364. [14920.612842] nebula kernel: ? wait_woken+0x80/0x80
  365. [14920.612865] nebula kernel: find_parent_nodes+0x31e/0x12e0 [btrfs]
  366. [14920.612872] nebula kernel: ? wait_on_page_bit+0xfd/0x130
  367. [14920.612903] nebula kernel: ? btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  368. [14920.612929] nebula kernel: btrfs_find_all_roots_safe+0xa8/0x120 [btrfs]
  369. [14920.612961] nebula kernel: btrfs_find_all_roots+0x57/0x70 [btrfs]
  370. [14920.612983] nebula kernel: btrfs_qgroup_trace_extent_post+0x37/0x70 [btrfs]
  371. [14920.613015] nebula kernel: btrfs_qgroup_trace_leaf_items+0x10b/0x140 [btrfs]
  372. [14920.613052] nebula kernel: btrfs_qgroup_trace_subtree+0x3b1/0x440 [btrfs]
  373. [14920.613074] nebula kernel: ? btrfs_tree_lock+0x56/0x1f0 [btrfs]
  374. [14920.613101] nebula kernel: do_walk_down+0x413/0x580 [btrfs]
  375. [14920.613131] nebula kernel: ? walk_up_proc+0x95/0x400 [btrfs]
  376. [14920.613148] nebula kernel: walk_down_tree+0xc1/0x100 [btrfs]
  377. [14920.613179] nebula kernel: btrfs_drop_snapshot+0x371/0x7f0 [btrfs]
  378. [14920.613188] nebula kernel: ? __schedule+0x2a3/0x8b0
  379. [14920.613206] nebula kernel: ? btrfs_destroy_pinned_extent+0xf0/0xf0 [btrfs]
  380. [14920.613224] nebula kernel: btrfs_clean_one_deleted_snapshot+0xb8/0xf0 [btrfs]
  381. [14920.613253] nebula kernel: cleaner_kthread+0x129/0x160 [btrfs]
  382. [14920.613267] nebula kernel: kthread+0x112/0x130
  383. [14920.613269] nebula kernel: ? kthread_park+0x80/0x80
  384. [14920.613271] nebula kernel: ret_from_fork+0x22/0x40
  385. [14920.613275] nebula kernel: btrfs-transacti D 0 619 2 0x80000080
  386. [14920.613277] nebula kernel: Call Trace:
  387. [14920.613280] nebula kernel: ? __schedule+0x29b/0x8b0
  388. [14920.613282] nebula kernel: ? preempt_count_add+0x79/0xb0
  389. [14920.613285] nebula kernel: schedule+0x32/0x90
  390. [14920.613287] nebula kernel: schedule_preempt_disabled+0x14/0x20
  391. [14920.613289] nebula kernel: __mutex_lock.isra.1+0x217/0x530
  392. [14920.613314] nebula kernel: btrfs_insert_delayed_items+0x3d/0x480 [btrfs]
  393. [14920.613337] nebula kernel: __btrfs_run_delayed_items+0x96/0x1d0 [btrfs]
  394. [14920.613358] nebula kernel: btrfs_commit_transaction+0x18a/0x870 [btrfs]
  395. [14920.613388] nebula kernel: ? start_transaction+0x9c/0x3f0 [btrfs]
  396. [14920.613413] nebula kernel: transaction_kthread+0x13f/0x170 [btrfs]
  397. [14920.613442] nebula kernel: ? btrfs_cleanup_transaction+0x560/0x560 [btrfs]
  398. [14920.613450] nebula kernel: kthread+0x112/0x130
  399. [14920.613451] nebula kernel: ? kthread_park+0x80/0x80
  400. [14920.613454] nebula kernel: ret_from_fork+0x22/0x40
  401. [14920.613461] nebula kernel: btrfs D 0 709 1 0x00000084
  402. [14920.613463] nebula kernel: Call Trace:
  403. [14920.613466] nebula kernel: ? __schedule+0x29b/0x8b0
  404. [14920.613468] nebula kernel: ? preempt_count_add+0x79/0xb0
  405. [14920.613473] nebula kernel: schedule+0x32/0x90
  406. [14920.613494] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  407. [14920.613511] nebula kernel: ? wait_woken+0x80/0x80
  408. [14920.613528] nebula kernel: btrfs_search_slot+0x7dd/0xa00 [btrfs]
  409. [14920.613548] nebula kernel: btrfs_lookup_dir_item+0x79/0xd0 [btrfs]
  410. [14920.613589] nebula kernel: btrfs_lookup_dentry+0xcb/0x4b0 [btrfs]
  411. [14920.613622] nebula kernel: btrfs_lookup+0xe/0x30 [btrfs]
  412. [14920.613627] nebula kernel: __lookup_slow+0x97/0x160
  413. [14920.613630] nebula kernel: lookup_slow+0x35/0x50
  414. [14920.613634] nebula kernel: walk_component+0x1bd/0x2d0
  415. [14920.613638] nebula kernel: path_lookupat.isra.13+0x71/0x230
  416. [14920.613658] nebula kernel: ? btrfs_dirty_inode+0x79/0xd0 [btrfs]
  417. [14920.613661] nebula kernel: filename_lookup.part.21+0xa0/0x170
  418. [14920.613667] nebula kernel: ? __check_object_size+0x102/0x189
  419. [14920.613671] nebula kernel: ? strncpy_from_user+0x4a/0x160
  420. [14920.613673] nebula kernel: ? getname_flags+0x6a/0x1e0
  421. [14920.613677] nebula kernel: do_utimes+0xd9/0x160
  422. [14920.613680] nebula kernel: ? _copy_from_user+0x37/0x60
  423. [14920.613682] nebula kernel: __se_sys_utimensat+0x76/0xc0
  424. [14920.613686] nebula kernel: ? ksys_read+0x4f/0xb0
  425. [14920.613690] nebula kernel: do_syscall_64+0x5b/0x170
  426. [14920.613692] nebula kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
  427. [14920.613696] nebula kernel: RIP: 0033:0x7f777dfc0693
  428. [14920.613703] nebula kernel: Code: Bad RIP value.
  429. [14920.613704] nebula kernel: RSP: 002b:00007fff36e28bb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000118
  430. [14920.613707] nebula kernel: RAX: ffffffffffffffda RBX: 00007fff36e29cc0 RCX: 00007f777dfc0693
  431. [14920.613708] nebula kernel: RDX: 00007fff36e28bc0 RSI: 00007fff36e28be0 RDI: 00000000ffffff9c
  432. [14920.613709] nebula kernel: RBP: 00007fff36e28be0 R08: 000055ee5f9d4a90 R09: 00007fff36e28550
  433. [14920.613710] nebula kernel: R10: 0000000000000100 R11: 0000000000000202 R12: 000055ee5f9d4a90
  434. [14920.613711] nebula kernel: R13: 00007fff36e29cc0 R14: 00007fff36e29ca0 R15: 00007fff36e29ca0
  435. [14920.613717] nebula kernel: ls D 0 816 630 0x00000084
  436. [14920.613719] nebula kernel: Call Trace:
  437. [14920.613723] nebula kernel: ? __schedule+0x29b/0x8b0
  438. [14920.613725] nebula kernel: ? preempt_count_add+0x79/0xb0
  439. [14920.613727] nebula kernel: schedule+0x32/0x90
  440. [14920.613759] nebula kernel: btrfs_tree_read_lock+0x7d/0x110 [btrfs]
  441. [14920.613766] nebula kernel: ? wait_woken+0x80/0x80
  442. [14920.613783] nebula kernel: btrfs_search_slot+0x7dd/0xa00 [btrfs]
  443. [14920.613802] nebula kernel: btrfs_lookup_xattr+0x7a/0xd0 [btrfs]
  444. [14920.613847] nebula kernel: btrfs_getxattr+0x67/0x120 [btrfs]
  445. [14920.613874] nebula kernel: btrfs_get_acl+0x3e/0xc0 [btrfs]
  446. [14920.613880] nebula kernel: get_acl+0x85/0x120
  447. [14920.613884] nebula kernel: posix_acl_xattr_get+0x35/0xa0
  448. [14920.613888] nebula kernel: __vfs_getxattr+0x53/0x70
  449. [14920.613891] nebula kernel: vfs_getxattr+0x114/0x140
  450. [14920.613894] nebula kernel: getxattr+0x183/0x1b0
  451. [14920.613897] nebula kernel: ? filename_lookup.part.21+0xe0/0x170
  452. [14920.613899] nebula kernel: ? __check_object_size+0x102/0x189
  453. [14920.613901] nebula kernel: ? strncpy_from_user+0x4a/0x160
  454. [14920.613904] nebula kernel: path_getxattr+0x68/0xb0
  455. [14920.613908] nebula kernel: do_syscall_64+0x5b/0x170
  456. [14920.613912] nebula kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
  457. [14920.613913] nebula kernel: RIP: 0033:0x7f181f9078fe
  458. [14920.613915] nebula kernel: Code: Bad RIP value.
  459. [14920.613916] nebula kernel: RSP: 002b:00007ffd6a84e418 EFLAGS: 00000246 ORIG_RAX: 00000000000000bf
  460. [14920.613918] nebula kernel: RAX: ffffffffffffffda RBX: 0000556ca9861c00 RCX: 00007f181f9078fe
  461. [14920.613919] nebula kernel: RDX: 0000000000000000 RSI: 0000556ca7e86f7b RDI: 00007ffd6a84e440
  462. [14920.613920] nebula kernel: RBP: 00007ffd6a84e440 R08: 00007f181f80b6c0 R09: 0000000000000000
  463. [14920.613921] nebula kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd6a84e440
  464. [14920.613922] nebula kernel: R13: 0000000000000000 R14: 0000000000000064 R15: 0000556ca9861c00
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