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  1. [ 2699.355044] dump_stack+0x148/0x1b5
  2. [ 2699.358671] should_fail+0x532/0x5f0
  3. [ 2699.362401] __should_failslab+0xec/0x120
  4. [ 2699.366565] should_failslab+0x9/0x20
  5. [ 2699.370415] kmem_cache_alloc+0x47/0x760
  6. [ 2699.374516] ? _raw_spin_unlock+0x22/0x30
  7. [ 2699.378655] ? get_alloc_profile+0x41c/0x5c0
  8. [ 2699.383053] alloc_extent_map+0x1d/0x1b0
  9. [ 2699.387115] create_io_em+0x5c/0x440
  10. [ 2699.390816] cow_file_range.isra.64+0x35a/0x890
  11. [ 2699.395477] ? async_cow_start+0x220/0x220
  12. [ 2699.399716] ? free_extent_buffer+0x24/0x30
  13. [ 2699.404039] ? btrfs_release_path+0x169/0x1f0
  14. [ 2699.408657] run_delalloc_nocow+0xcaf/0x1560
  15. [ 2699.413087] ? refcount_inc+0x50/0x50
  16. [ 2699.416912] ? test_range_bit+0x295/0x350
  17. [ 2699.421085] ? cow_file_range.isra.64+0x890/0x890
  18. [ 2699.426039] ? test_range_bit+0x350/0x350
  19. [ 2699.430317] run_delalloc_range+0x448/0x9e0
  20. [ 2699.434713] ? debug_check_no_locks_freed+0x3c0/0x3c0
  21. [ 2699.440026] writepage_delalloc+0x257/0x460
  22. [ 2699.444373] ? find_lock_delalloc_range.constprop.48+0x470/0x470
  23. [ 2699.450538] ? __lock_is_held+0xb6/0x140
  24. [ 2699.454638] __extent_writepage+0x536/0x8d0
  25. [ 2699.459185] ? __extent_writepage_io+0xa80/0xa80
  26. [ 2699.464056] ? clear_page_dirty_for_io+0x6a9/0xb50
  27. [ 2699.469233] ? clear_page_dirty_for_io+0x1c7/0xb50
  28. [ 2699.474194] extent_write_cache_pages+0x31d/0xb10
  29. [ 2699.479055] ? __extent_writepage+0x8d0/0x8d0
  30. [ 2699.483561] ? __lock_acquire+0x5ea/0x3850
  31. [ 2699.487823] ? debug_check_no_locks_freed+0x3c0/0x3c0
  32. [ 2699.493189] ? debug_check_no_locks_freed+0x3c0/0x3c0
  33. [ 2699.498769] ? debug_check_no_locks_freed+0x3c0/0x3c0
  34. [ 2699.504039] extent_writepages+0xc7/0x110
  35. [ 2699.512336] ? extent_write_locked_range+0x390/0x390
  36. [ 2699.517487] ? btrfs_readpages+0x60/0x60
  37. [ 2699.521638] btrfs_writepages+0x3e/0x50
  38. [ 2699.525632] do_writepages+0xf2/0x290
  39. [ 2699.529443] ? page_writeback_cpu_online+0x20/0x20
  40. [ 2699.534463] ? kasan_check_read+0x11/0x20
  41. [ 2699.538610] ? do_raw_spin_unlock+0x54/0x260
  42. [ 2699.543108] ? _raw_spin_unlock+0x22/0x30
  43. [ 2699.547258] __filemap_fdatawrite_range+0x251/0x310
  44. [ 2699.552308] ? __filemap_fdatawrite_range+0x251/0x310
  45. [ 2699.557588] ? delete_from_page_cache_batch+0xb20/0xb20
  46. [ 2699.562981] filemap_fdatawrite_range+0x2a/0x40
  47. [ 2699.567668] btrfs_fdatawrite_range+0x49/0xe0
  48. [ 2699.572182] btrfs_wait_ordered_range+0x4c/0x210
  49. [ 2699.576978] btrfs_fallocate+0x45e/0x2ab0
  50. [ 2699.581210] ? __btrfs_drop_extents+0x1b70/0x1b70
  51. [ 2699.586105] ? __lock_acquire+0x5ea/0x3850
  52. [ 2699.590699] ? kasan_check_write+0x14/0x20
  53. [ 2699.594973] ? proc_fail_nth_write+0x8c/0x1a0
  54. [ 2699.599499] ? debug_check_no_locks_freed+0x3c0/0x3c0
  55. [ 2699.604921] ? map_files_get_link+0x3b0/0x3b0
  56. [ 2699.609453] ? __vfs_write+0xf7/0x740
  57. [ 2699.613276] ? find_held_lock+0x35/0x1e0
  58. [ 2699.617351] ? __lock_is_held+0xb6/0x140
  59. [ 2699.621430] ? __lock_is_held+0xb6/0x140
  60. [ 2699.625513] ? rcu_read_lock_sched_held+0x108/0x120
  61. [ 2699.630537] ? rcu_sync_lockdep_assert+0x6d/0xb0
  62. [ 2699.635308] ? __sb_start_write+0x209/0x2a0
  63. [ 2699.639653] ? __btrfs_drop_extents+0x1b70/0x1b70
  64. [ 2699.644499] vfs_fallocate+0x33c/0x6f0
  65. [ 2699.648416] ksys_fallocate+0x46/0x80
  66. [ 2699.652236] __x64_sys_fallocate+0x97/0xf0
  67. [ 2699.656497] do_syscall_64+0xda/0x560
  68. [ 2699.660316] entry_SYSCALL_64_after_hwframe+0x49/0xbe
  69. [ 2699.665526] RIP: 0033:0x7f771848db79
  70. [ 2699.669249] RSP: 002b:00007ffc4447cd28 EFLAGS: 00000206 ORIG_RAX: 000000000000011d
  71. [ 2699.677069] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f771848db79
  72. [ 2699.684405] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
  73. [ 2699.691690] RBP: 00007ffc4447cd40 R08: 0000000000000001 R09: 0000000000401d76
  74. [ 2699.698959] R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000400a00
  75. [ 2699.706338] R13: 00007ffc4447ce70 R14: 0000000000000000 R15: 0000000000000000
  76. [ 2699.718562] ------------[ cut here ]------------
  77. [ 2699.723365] kernel BUG at mm/page-writeback.c:2652!
  78. [ 2699.728542] invalid opcode: 0000 [#1] SMP KASAN PTI
  79. [ 2699.733564] Dumping ftrace buffer:
  80. [ 2699.737106] (ftrace buffer empty)
  81. [ 2699.740825] Modules linked in:
  82. [ 2699.744035] CPU: 0 PID: 3476 Comm: repro Not tainted 4.17.0-rc4+ #10
  83. [ 2699.750538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  84. [ 2699.760128] RIP: 0010:clear_page_dirty_for_io+0x385/0xb50
  85. [ 2699.765761] RSP: 0018:ffff8801032dedd0 EFLAGS: 00010293
  86. [ 2699.771139] RAX: ffff8801024ba680 RBX: ffffea0004046b00 RCX: ffffffff817aaf95
  87. [ 2699.778499] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea0004046b08
  88. [ 2699.785855] RBP: ffff8801032dee20 R08: fffff9400085f83c R09: 0000000000000001
  89. [ 2699.793132] R10: fffff9400085f83b R11: ffffea00042fc1df R12: ffff88010afa4b70
  90. [ 2699.800505] R13: ffffea0004046b00 R14: ffffea0004046b20 R15: ffffea00042fc1e0
  91. [ 2699.807784] FS: 00007f7718958700(0000) GS:ffff88010d200000(0000) knlGS:0000000000000000
  92. [ 2699.816017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  93. [ 2699.821894] CR2: 00007f77184012d0 CR3: 000000010272e005 CR4: 00000000001606f0
  94. [ 2699.829172] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  95. [ 2699.836450] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  96. [ 2699.843827] Call Trace:
  97. [ 2699.846444] __process_pages_contig+0x490/0x930
  98. [ 2699.851210] ? __clear_extent_bit+0x4bd/0x7d0
  99. [ 2699.855725] ? find_delalloc_range.constprop.49+0x510/0x510
  100. [ 2699.861944] ? __set_extent_bit+0xd10/0xd10
  101. [ 2699.866298] ? kasan_check_write+0x14/0x20
  102. [ 2699.870713] extent_clear_unlock_delalloc+0x8c/0xb0
  103. [ 2699.875860] cow_file_range.isra.64+0x651/0x890
  104. [ 2699.880544] ? async_cow_start+0x220/0x220
  105. [ 2699.884818] ? free_extent_buffer+0x24/0x30
  106. [ 2699.889167] ? btrfs_release_path+0x169/0x1f0
  107. [ 2699.893714] run_delalloc_nocow+0xcaf/0x1560
  108. [ 2699.898202] ? refcount_inc+0x50/0x50
  109. [ 2699.902029] ? test_range_bit+0x295/0x350
  110. [ 2699.906202] ? cow_file_range.isra.64+0x890/0x890
  111. [ 2699.911094] ? test_range_bit+0x350/0x350
  112. [ 2699.915296] run_delalloc_range+0x448/0x9e0
  113. [ 2699.919653] ? debug_check_no_locks_freed+0x3c0/0x3c0
  114. [ 2699.924872] writepage_delalloc+0x257/0x460
  115. [ 2699.929211] ? find_lock_delalloc_range.constprop.48+0x470/0x470
  116. [ 2699.935375] ? __lock_is_held+0xb6/0x140
  117. [ 2699.939452] __extent_writepage+0x536/0x8d0
  118. [ 2699.943787] ? __extent_writepage_io+0xa80/0xa80
  119. [ 2699.948560] ? clear_page_dirty_for_io+0x6a9/0xb50
  120. [ 2699.953510] ? clear_page_dirty_for_io+0x1c7/0xb50
  121. [ 2699.958460] extent_write_cache_pages+0x31d/0xb10
  122. [ 2699.963315] ? __extent_writepage+0x8d0/0x8d0
  123. [ 2699.967822] ? __lock_acquire+0x5ea/0x3850
  124. [ 2699.972066] ? debug_check_no_locks_freed+0x3c0/0x3c0
  125. [ 2699.977311] ? debug_check_no_locks_freed+0x3c0/0x3c0
  126. [ 2699.982539] ? debug_check_no_locks_freed+0x3c0/0x3c0
  127. [ 2699.987761] extent_writepages+0xc7/0x110
  128. [ 2699.992023] ? extent_write_locked_range+0x390/0x390
  129. [ 2699.997276] ? btrfs_readpages+0x60/0x60
  130. [ 2700.001359] btrfs_writepages+0x3e/0x50
  131. [ 2700.005372] do_writepages+0xf2/0x290
  132. [ 2700.009197] ? page_writeback_cpu_online+0x20/0x20
  133. [ 2700.014149] ? kasan_check_read+0x11/0x20
  134. [ 2700.018299] ? do_raw_spin_unlock+0x54/0x260
  135. [ 2700.022703] ? _raw_spin_unlock+0x22/0x30
  136. [ 2700.026851] __filemap_fdatawrite_range+0x251/0x310
  137. [ 2700.031881] ? __filemap_fdatawrite_range+0x251/0x310
  138. [ 2700.037075] ? delete_from_page_cache_batch+0xb20/0xb20
  139. [ 2700.042465] filemap_fdatawrite_range+0x2a/0x40
  140. [ 2700.047149] btrfs_fdatawrite_range+0x49/0xe0
  141. [ 2700.051658] btrfs_wait_ordered_range+0x4c/0x210
  142. [ 2700.056436] btrfs_fallocate+0x45e/0x2ab0
  143. [ 2700.060609] ? __btrfs_drop_extents+0x1b70/0x1b70
  144. [ 2700.065582] ? __lock_acquire+0x5ea/0x3850
  145. [ 2700.069829] ? kasan_check_write+0x14/0x20
  146. [ 2700.074064] ? proc_fail_nth_write+0x8c/0x1a0
  147. [ 2700.078570] ? debug_check_no_locks_freed+0x3c0/0x3c0
  148. [ 2700.083782] ? map_files_get_link+0x3b0/0x3b0
  149. [ 2700.088302] ? __vfs_write+0xf7/0x740
  150. [ 2700.092261] ? find_held_lock+0x35/0x1e0
  151. [ 2700.096451] ? __lock_is_held+0xb6/0x140
  152. [ 2700.100689] ? __lock_is_held+0xb6/0x140
  153. [ 2700.104934] ? rcu_read_lock_sched_held+0x108/0x120
  154. [ 2700.109964] ? rcu_sync_lockdep_assert+0x6d/0xb0
  155. [ 2700.114726] ? __sb_start_write+0x209/0x2a0
  156. [ 2700.119065] ? __btrfs_drop_extents+0x1b70/0x1b70
  157. [ 2700.123924] vfs_fallocate+0x33c/0x6f0
  158. [ 2700.127862] ksys_fallocate+0x46/0x80
  159. [ 2700.131664] __x64_sys_fallocate+0x97/0xf0
  160. [ 2700.135904] do_syscall_64+0xda/0x560
  161. [ 2700.139710] entry_SYSCALL_64_after_hwframe+0x49/0xbe
  162. [ 2700.144900] RIP: 0033:0x7f771848db79
  163. [ 2700.148609] RSP: 002b:00007ffc4447cd28 EFLAGS: 00000206 ORIG_RAX: 000000000000011d
  164. [ 2700.156313] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f771848db79
  165. [ 2700.163584] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
  166. [ 2700.170860] RBP: 00007ffc4447cd40 R08: 0000000000000001 R09: 0000000000401d76
  167. [ 2700.178279] R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000400a00
  168. [ 2700.185545] R13: 00007ffc4447ce70 R14: 0000000000000000 R15: 0000000000000000
  169. [ 2700.192904] Code: 7a 81 be 01 00 00 00 48 c7 c7 00 88 f3 85 e8 43 96 d0 ff e9 50 fe ff ff e8 b9 aa e5 ff 4d 8d 6f ff e9 d4 fc ff ff e8 ab aa e5 ff <0f> 0b e8 a4 aa e5 ff 49 8d 5c 24 ff e9 19 fe ff ff e8 95 aa e5
  170. [ 2700.212008] RIP: clear_page_dirty_for_io+0x385/0xb50 RSP: ffff8801032dedd0
  171. [ 2700.219680] ---[ end trace ab038421722cc6d8 ]---
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