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btrfs balance problems (dmesg)

May 13th, 2013
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  1. […]
  2. [ 297.368306] btrfs: relocating block group 650117120 flags 4
  3. [ 298.019427] btrfs: found 1166 extents
  4. [ 298.136035] btrfs: relocating block group 641728512 flags 4
  5. [ 298.986713] btrfs: found 1118 extents
  6. [ 299.119791] btrfs: relocating block group 633339904 flags 4
  7. [ 300.422672] ------------[ cut here ]------------
  8. [ 300.422702] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  9. [ 300.422703] Hardware name: HP Compaq dc5800 Microtower
  10. [ 300.422704] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  11. [ 300.422731] Pid: 1242, comm: btrfs-balance Tainted: PF O 3.8.0-20-generic #31-Ubuntu
  12. [ 300.422733] Call Trace:
  13. [ 300.422738] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  14. [ 300.422740] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  15. [ 300.422751] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  16. [ 300.422761] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  17. [ 300.422772] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  18. [ 300.422783] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  19. [ 300.422792] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  20. [ 300.422802] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  21. [ 300.422813] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  22. [ 300.422821] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  23. [ 300.422825] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  24. [ 300.422835] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  25. [ 300.422845] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  26. [ 300.422856] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  27. [ 300.422867] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  28. [ 300.422877] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  29. [ 300.422889] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  30. [ 300.422899] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  31. [ 300.422910] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  32. [ 300.422921] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  33. [ 300.422931] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  34. [ 300.422934] [<ffffffff8107d370>] kthread+0xc0/0xd0
  35. [ 300.422936] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  36. [ 300.422939] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  37. [ 300.422941] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  38. [ 300.422942] ---[ end trace 642372407e2e8152 ]---
  39. [ 300.422949] ------------[ cut here ]------------
  40. [ 300.422960] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  41. [ 300.422961] Hardware name: HP Compaq dc5800 Microtower
  42. [ 300.422961] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  43. [ 300.422985] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  44. [ 300.422986] Call Trace:
  45. [ 300.422988] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  46. [ 300.422990] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  47. [ 300.423000] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  48. [ 300.423011] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  49. [ 300.423021] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  50. [ 300.423031] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  51. [ 300.423040] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  52. [ 300.423050] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  53. [ 300.423061] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  54. [ 300.423069] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  55. [ 300.423071] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  56. [ 300.423082] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  57. [ 300.423092] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  58. [ 300.423102] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  59. [ 300.423113] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  60. [ 300.423124] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  61. [ 300.423135] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  62. [ 300.423145] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  63. [ 300.423156] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  64. [ 300.423167] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  65. [ 300.423178] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  66. [ 300.423179] [<ffffffff8107d370>] kthread+0xc0/0xd0
  67. [ 300.423181] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  68. [ 300.423183] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  69. [ 300.423185] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  70. [ 300.423187] ---[ end trace 642372407e2e8153 ]---
  71. [ 300.423223] ------------[ cut here ]------------
  72. [ 300.423234] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  73. [ 300.423235] Hardware name: HP Compaq dc5800 Microtower
  74. [ 300.423236] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  75. [ 300.423259] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  76. [ 300.423260] Call Trace:
  77. [ 300.423263] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  78. [ 300.423265] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  79. [ 300.423275] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  80. [ 300.423285] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  81. [ 300.423296] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  82. [ 300.423306] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  83. [ 300.423315] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  84. [ 300.423325] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  85. [ 300.423336] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  86. [ 300.423344] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  87. [ 300.423346] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  88. [ 300.423356] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  89. [ 300.423367] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  90. [ 300.423377] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  91. [ 300.423388] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  92. [ 300.423399] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  93. [ 300.423409] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  94. [ 300.423420] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  95. [ 300.423431] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  96. [ 300.423442] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  97. [ 300.423452] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  98. [ 300.423454] [<ffffffff8107d370>] kthread+0xc0/0xd0
  99. [ 300.423456] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  100. [ 300.423458] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  101. [ 300.423460] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  102. [ 300.423461] ---[ end trace 642372407e2e8154 ]---
  103. [ 300.423468] ------------[ cut here ]------------
  104. [ 300.423478] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  105. [ 300.423479] Hardware name: HP Compaq dc5800 Microtower
  106. [ 300.423480] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  107. [ 300.423503] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  108. [ 300.423504] Call Trace:
  109. [ 300.423507] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  110. [ 300.423508] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  111. [ 300.423519] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  112. [ 300.423529] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  113. [ 300.423539] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  114. [ 300.423550] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  115. [ 300.423559] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  116. [ 300.423569] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  117. [ 300.423579] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  118. [ 300.423588] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  119. [ 300.423590] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  120. [ 300.423600] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  121. [ 300.423610] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  122. [ 300.423621] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  123. [ 300.423632] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  124. [ 300.423642] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  125. [ 300.423653] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  126. [ 300.423664] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  127. [ 300.423675] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  128. [ 300.423685] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  129. [ 300.423696] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  130. [ 300.423698] [<ffffffff8107d370>] kthread+0xc0/0xd0
  131. [ 300.423699] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  132. [ 300.423702] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  133. [ 300.423703] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  134. [ 300.423705] ---[ end trace 642372407e2e8155 ]---
  135. [ 300.423744] ------------[ cut here ]------------
  136. [ 300.423755] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  137. [ 300.423756] Hardware name: HP Compaq dc5800 Microtower
  138. [ 300.423757] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  139. [ 300.423780] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  140. [ 300.423781] Call Trace:
  141. [ 300.423783] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  142. [ 300.423785] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  143. [ 300.423795] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  144. [ 300.423806] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  145. [ 300.423816] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  146. [ 300.423827] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  147. [ 300.423835] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  148. [ 300.423846] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  149. [ 300.423856] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  150. [ 300.423864] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  151. [ 300.423866] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  152. [ 300.423877] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  153. [ 300.423887] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  154. [ 300.423897] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  155. [ 300.423908] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  156. [ 300.423919] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  157. [ 300.423930] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  158. [ 300.423940] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  159. [ 300.423951] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  160. [ 300.423962] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  161. [ 300.423972] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  162. [ 300.423974] [<ffffffff8107d370>] kthread+0xc0/0xd0
  163. [ 300.423976] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  164. [ 300.423978] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  165. [ 300.423980] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  166. [ 300.423981] ---[ end trace 642372407e2e8156 ]---
  167. [ 300.423988] ------------[ cut here ]------------
  168. [ 300.423998] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  169. [ 300.424041] Hardware name: HP Compaq dc5800 Microtower
  170. [ 300.424045] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  171. [ 300.424068] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  172. [ 300.424069] Call Trace:
  173. [ 300.424071] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  174. [ 300.424073] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  175. [ 300.424083] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  176. [ 300.424094] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  177. [ 300.424104] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  178. [ 300.424114] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  179. [ 300.424123] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  180. [ 300.424133] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  181. [ 300.424144] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  182. [ 300.424156] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  183. [ 300.424163] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  184. [ 300.424177] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  185. [ 300.424192] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  186. [ 300.424207] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  187. [ 300.424219] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  188. [ 300.424230] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  189. [ 300.424240] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  190. [ 300.424251] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  191. [ 300.424262] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  192. [ 300.424272] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  193. [ 300.424283] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  194. [ 300.424285] [<ffffffff8107d370>] kthread+0xc0/0xd0
  195. [ 300.424286] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  196. [ 300.424289] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  197. [ 300.424290] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  198. [ 300.424292] ---[ end trace 642372407e2e8157 ]---
  199. [ 300.424351] ------------[ cut here ]------------
  200. [ 300.424361] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/delayed-ref.c:454 update_existing_ref+0x119/0x150 [btrfs]()
  201. [ 300.424362] Hardware name: HP Compaq dc5800 Microtower
  202. [ 300.424363] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  203. [ 300.424387] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  204. [ 300.424388] Call Trace:
  205. [ 300.424390] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  206. [ 300.424392] [<ffffffff8105884a>] warn_slowpath_null+0x1a/0x20
  207. [ 300.424402] [<ffffffffa010c7c9>] update_existing_ref+0x119/0x150 [btrfs]
  208. [ 300.424412] [<ffffffffa010ca5f>] add_delayed_tree_ref+0xcf/0x190 [btrfs]
  209. [ 300.424428] [<ffffffffa010c61b>] ? add_delayed_ref_head.isra.7+0xcb/0x160 [btrfs]
  210. [ 300.424442] [<ffffffffa010d25c>] btrfs_add_delayed_tree_ref+0x10c/0x1b0 [btrfs]
  211. [ 300.424456] [<ffffffffa00b7551>] btrfs_free_extent+0xa1/0xf0 [btrfs]
  212. [ 300.424470] [<ffffffffa0111053>] replace_path+0x743/0x7a0 [btrfs]
  213. [ 300.424483] [<ffffffffa0113c60>] merge_reloc_root+0x1e0/0x500 [btrfs]
  214. [ 300.424491] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  215. [ 300.424493] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  216. [ 300.424503] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  217. [ 300.424513] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  218. [ 300.424524] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  219. [ 300.424534] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  220. [ 300.424545] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  221. [ 300.424556] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  222. [ 300.424571] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  223. [ 300.424586] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  224. [ 300.424601] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  225. [ 300.424616] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  226. [ 300.424621] [<ffffffff8107d370>] kthread+0xc0/0xd0
  227. [ 300.424625] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  228. [ 300.424627] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  229. [ 300.424629] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  230. [ 300.424630] ---[ end trace 642372407e2e8158 ]---
  231. [ 300.425379] ------------[ cut here ]------------
  232. [ 300.425388] WARNING: at /build/buildd/linux-3.8.0/fs/btrfs/super.c:256 __btrfs_abort_transaction+0xdf/0x100 [btrfs]()
  233. [ 300.425389] Hardware name: HP Compaq dc5800 Microtower
  234. [ 300.425390] btrfs: Transaction aborted
  235. [ 300.425391] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  236. [ 300.425415] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu
  237. [ 300.425416] Call Trace:
  238. [ 300.425418] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
  239. [ 300.425420] [<ffffffff810588ec>] warn_slowpath_fmt+0x4c/0x50
  240. [ 300.425431] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  241. [ 300.425440] [<ffffffffa00a2f1f>] __btrfs_abort_transaction+0xdf/0x100 [btrfs]
  242. [ 300.425448] [<ffffffffa00afb4c>] ? insert_tree_block_ref+0x4c/0x70 [btrfs]
  243. [ 300.425457] [<ffffffffa00b2560>] __btrfs_inc_extent_ref+0x1c0/0x210 [btrfs]
  244. [ 300.425466] [<ffffffffa00b81e5>] run_clustered_refs+0x665/0xac0 [btrfs]
  245. [ 300.425475] [<ffffffffa00bbed0>] btrfs_run_delayed_refs+0xd0/0x2f0 [btrfs]
  246. [ 300.425485] [<ffffffffa00cc43e>] __btrfs_end_transaction+0xee/0x3f0 [btrfs]
  247. [ 300.425495] [<ffffffffa00cc773>] btrfs_end_transaction_throttle+0x13/0x20 [btrfs]
  248. [ 300.425505] [<ffffffffa0113cf3>] merge_reloc_root+0x273/0x500 [btrfs]
  249. [ 300.425513] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  250. [ 300.425516] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  251. [ 300.425526] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  252. [ 300.425536] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  253. [ 300.425547] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  254. [ 300.425557] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  255. [ 300.425568] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  256. [ 300.425579] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  257. [ 300.425590] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  258. [ 300.425600] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  259. [ 300.425611] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  260. [ 300.425622] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  261. [ 300.425623] [<ffffffff8107d370>] kthread+0xc0/0xd0
  262. [ 300.425625] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  263. [ 300.425627] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  264. [ 300.425629] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  265. [ 300.425631] ---[ end trace 642372407e2e8159 ]---
  266. [ 300.425633] BTRFS error (device dm-5) in __btrfs_inc_extent_ref:1935: Object already exists
  267. [ 300.425634] btrfs is forced readonly
  268. [ 300.426196] ------------[ cut here ]------------
  269. [ 300.426197] Kernel BUG at ffffffffa0113b7d [verbose debug info unavailable]
  270. [ 300.426199] invalid opcode: 0000 [#1] SMP
  271. [ 300.426201] Modules linked in: arc4(F) md4(F) parport_pc(F) ppdev(F) bnep rfcomm bluetooth nls_utf8 cifs(F) fscache(F) ext2(F) tpm_infineon snd_hda_codec_analog coretemp kvm_intel kvm hp_wmi sparse_keymap gpio_ich snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) dm_multipath(F) scsi_dh(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) microcode(F) snd_seq(F) tpm_tis mac_hid psmouse(F) serio_raw(F) snd_seq_device(F) nvidia(POF) snd_timer(F) wmi snd(F) mei lpc_ich lp(F) parport(F) soundcore(F) btrfs(F) zlib_deflate(F) libcrc32c(F) hid_generic usbhid hid usb_storage(F) floppy(F) e1000e(F)
  272. [ 300.426225] CPU 1
  273. [ 300.426227] Pid: 1242, comm: btrfs-balance Tainted: PF W O 3.8.0-20-generic #31-Ubuntu Hewlett-Packard HP Compaq dc5800 Microtower/2820h
  274. [ 300.426228] RIP: 0010:[<ffffffffa0113b7d>] [<ffffffffa0113b7d>] merge_reloc_root+0xfd/0x500 [btrfs]
  275. [ 300.426239] RSP: 0018:ffff8801f1fb1b18 EFLAGS: 00010206
  276. [ 300.426240] RAX: ffffffffffffffe2 RBX: ffff88012d38be10 RCX: 0000000000000002
  277. [ 300.426242] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88020eb40000
  278. [ 300.426243] RBP: ffff8801f1fb1bb0 R08: 000060fde4000a90 R09: ffffe8ffffc80a90
  279. [ 300.426244] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffffffffe2
  280. [ 300.426245] R13: ffff88020eb40000 R14: ffff880124637800 R15: ffff880124630800
  281. [ 300.426247] FS: 0000000000000000(0000) GS:ffff88021bc80000(0000) knlGS:0000000000000000
  282. [ 300.426248] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  283. [ 300.426250] CR2: 0000000001ab3000 CR3: 00000001e907b000 CR4: 00000000000407e0
  284. [ 300.426251] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  285. [ 300.426252] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  286. [ 300.426254] Process btrfs-balance (pid: 1242, threadinfo ffff8801f1fb0000, task ffff8801f7c7c5c0)
  287. [ 300.426255] Stack:
  288. [ 300.426256] ffff880100000002 ffffffffa00a6276 0000e00000000001 00000002f1fb1b40
  289. [ 300.426258] ffffffff8134bb2b ffff8801f1fb1b40 ffff8801f1fb1b40 00010001246359d7
  290. [ 300.426260] 0000010000000000 019b000000000000 0001000000000000 0000000000000000
  291. [ 300.426263] Call Trace:
  292. [ 300.426271] [<ffffffffa00a6276>] ? btrfs_free_path+0x26/0x30 [btrfs]
  293. [ 300.426274] [<ffffffff8134bb2b>] ? radix_tree_lookup+0xb/0x10
  294. [ 300.426284] [<ffffffffa0114098>] merge_reloc_roots+0x118/0x150 [btrfs]
  295. [ 300.426294] [<ffffffffa011456c>] relocate_block_group+0x25c/0x690 [btrfs]
  296. [ 300.426305] [<ffffffffa0114b5d>] btrfs_relocate_block_group+0x1bd/0x300 [btrfs]
  297. [ 300.426316] [<ffffffffa00ec8e5>] btrfs_relocate_chunk.isra.54+0x75/0x710 [btrfs]
  298. [ 300.426327] [<ffffffffa00e3f21>] ? release_extent_buffer.isra.26+0x81/0xf0 [btrfs]
  299. [ 300.426337] [<ffffffffa00e92b3>] ? free_extent_buffer+0x33/0x90 [btrfs]
  300. [ 300.426348] [<ffffffffa00f1327>] __btrfs_balance+0x437/0x830 [btrfs]
  301. [ 300.426359] [<ffffffffa00f1a38>] btrfs_balance+0x318/0x620 [btrfs]
  302. [ 300.426370] [<ffffffffa00f1dc2>] balance_kthread+0x82/0x90 [btrfs]
  303. [ 300.426380] [<ffffffffa00f1d40>] ? btrfs_balance+0x620/0x620 [btrfs]
  304. [ 300.426382] [<ffffffff8107d370>] kthread+0xc0/0xd0
  305. [ 300.426384] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  306. [ 300.426386] [<ffffffff816d39ec>] ret_from_fork+0x7c/0xb0
  307. [ 300.426388] [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
  308. [ 300.426389] Code: 00 00 4c 89 ef 49 89 44 24 40 49 8b 76 18 e8 3b 2d fa ff 85 c0 74 17 83 f8 f5 75 0f 4c 89 ee 4c 89 e7 e8 d7 7c fb ff 85 c0 74 b3 <0f> 0b 90 8b 45 84 48 8d 55 84 48 89 de 4c 89 ff 89 85 78 ff ff
  309. [ 300.426412] RIP [<ffffffffa0113b7d>] merge_reloc_root+0xfd/0x500 [btrfs]
  310. [ 300.426422] RSP <ffff8801f1fb1b18>
  311. [ 300.426424] ---[ end trace 642372407e2e815a ]---
  312. a@ewzw032:~$
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