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  1. root@s-brick-000:~# dmesg
  2. [ 3414.424235] btrfs: unlinked 1 orphans
  3. [ 7784.841583] btrfs-cleaner: page allocation failure: order:4, mode:0x4050
  4. [ 7784.841583] Pid: 1808, comm: btrfs-cleaner Tainted: G W 3.3.0-rc1-dangerdonteveruse+ #1
  5. [ 7784.841583] Call Trace:
  6. [ 7784.841583] [<ffffffff811104e2>] warn_alloc_failed+0xf2/0x140
  7. [ 7784.841583] [<ffffffff811130cd>] ? __alloc_pages_direct_compact+0xcd/0x1a0
  8. [ 7784.841583] [<ffffffff81113793>] __alloc_pages_nodemask+0x5f3/0x850
  9. [ 7784.841583] [<ffffffffa00bbc0c>] ? add_delayed_tree_ref.clone.4+0xbc/0x1c0 [btrfs]
  10. [ 7784.841583] [<ffffffff8114a755>] alloc_pages_current+0xa5/0x110
  11. [ 7784.841583] [<ffffffff8110feae>] __get_free_pages+0xe/0x40
  12. [ 7784.841583] [<ffffffff81154cdf>] kmalloc_order_trace+0x3f/0xb0
  13. [ 7784.841583] [<ffffffff81156c14>] __kmalloc+0x154/0x160
  14. [ 7784.841583] [<ffffffffa005ea31>] split_item.clone.37+0x81/0x2a0 [btrfs]
  15. [ 7784.841583] [<ffffffffa005f7bb>] btrfs_split_item+0x4b/0x60 [btrfs]
  16. [ 7784.841583] [<ffffffffa0072449>] btrfs_del_csums+0x139/0x320 [btrfs]
  17. [ 7784.841583] [<ffffffffa00ad6f8>] ? btrfs_tree_unlock+0x28/0xb0 [btrfs]
  18. [ 7784.841583] [<ffffffffa0066a88>] __btrfs_free_extent+0x488/0x6f0 [btrfs]
  19. [ 7784.841583] [<ffffffffa006ab75>] run_clustered_refs+0x225/0x8f0 [btrfs]
  20. [ 7784.841583] [<ffffffffa00bb343>] ? find_ref_head+0x83/0xe0 [btrfs]
  21. [ 7784.841583] [<ffffffffa00bc19d>] ? btrfs_add_delayed_tree_ref+0x14d/0x1e0 [btrfs]
  22. [ 7784.841583] [<ffffffffa006b3c8>] btrfs_run_delayed_refs+0x188/0x4b0 [btrfs]
  23. [ 7784.841583] [<ffffffffa007bd48>] btrfs_should_end_transaction+0x98/0xa0 [btrfs]
  24. [ 7784.841583] [<ffffffffa006d284>] btrfs_drop_snapshot+0x304/0x570 [btrfs]
  25. [ 7784.841583] [<ffffffffa007d3e0>] btrfs_clean_old_snapshots+0x120/0x160 [btrfs]
  26. [ 7784.841583] [<ffffffffa0075bd0>] cleaner_kthread+0x160/0x1c0 [btrfs]
  27. [ 7784.841583] [<ffffffffa0075a70>] ? write_dev_supers.clone.109+0x280/0x280 [btrfs]
  28. [ 7784.841583] [<ffffffff8106ea7e>] kthread+0x9e/0xb0
  29. [ 7784.841583] [<ffffffff81540da4>] kernel_thread_helper+0x4/0x10
  30. [ 7784.841583] [<ffffffff8106e9e0>] ? flush_kthread_worker+0xc0/0xc0
  31. [ 7784.841583] [<ffffffff81540da0>] ? gs_change+0x13/0x13
  32. [ 7784.841583] Mem-Info:
  33. [ 7784.841583] Node 0 DMA per-cpu:
  34. [ 7784.841583] CPU 0: hi: 0, btch: 1 usd: 0
  35. [ 7784.841583] CPU 1: hi: 0, btch: 1 usd: 0
  36. [ 7784.841583] Node 0 DMA32 per-cpu:
  37. [ 7784.841583] CPU 0: hi: 186, btch: 31 usd: 0
  38. [ 7784.841583] CPU 1: hi: 186, btch: 31 usd: 0
  39. [ 7784.841583] Node 0 Normal per-cpu:
  40. [ 7784.841583] CPU 0: hi: 186, btch: 31 usd: 0
  41. [ 7784.841583] CPU 1: hi: 186, btch: 31 usd: 0
  42. [ 7784.841583] active_anon:30983 inactive_anon:31453 isolated_anon:0
  43. [ 7784.841583] active_file:445192 inactive_file:451556 isolated_file:0
  44. [ 7784.841583] unevictable:8 dirty:9733 writeback:7974 unstable:0
  45. [ 7784.841583] free:16900 slab_reclaimable:12728 slab_unreclaimable:3298
  46. [ 7784.841583] mapped:1158 shmem:2 pagetables:761 bounce:0
  47. [ 7784.841583] Node 0 DMA free:15924kB min:28kB low:32kB high:40kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15668kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
  48. [ 7784.841583] lowmem_reserve[]: 0 3471 3975 3975
  49. [ 7784.841583] Node 0 DMA32 free:49472kB min:7032kB low:8788kB high:10548kB active_anon:39092kB inactive_anon:40784kB active_file:1677072kB inactive_file:1702280kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3555264kB mlocked:0kB dirty:35552kB writeback:26044kB mapped:760kB shmem:0kB slab_reclaimable:31904kB slab_unreclaimable:3096kB kernel_stack:304kB pagetables:244kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
  50. [ 7784.841583] lowmem_reserve[]: 0 0 504 504
  51. [ 7784.841583] Node 0 Normal free:2204kB min:1020kB low:1272kB high:1528kB active_anon:84840kB inactive_anon:85028kB active_file:103696kB inactive_file:103944kB unevictable:32kB isolated(anon):0kB isolated(file):0kB present:516096kB mlocked:32kB dirty:3380kB writeback:5852kB mapped:3872kB shmem:8kB slab_reclaimable:19008kB slab_unreclaimable:10096kB kernel_stack:1528kB pagetables:2800kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
  52. [ 7784.841583] lowmem_reserve[]: 0 0 0 0
  53. [ 7784.841583] Node 0 DMA: 1*4kB 0*8kB 1*16kB 1*32kB 2*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15924kB
  54. [ 7784.841583] Node 0 DMA32: 11532*4kB 0*8kB 5*16kB 2*32kB 0*64kB 1*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 49472kB
  55. [ 7784.841583] Node 0 Normal: 437*4kB 15*8kB 3*16kB 1*32kB 0*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2204kB
  56. [ 7784.841583] 896913 total pagecache pages
  57. [ 7784.841583] 156 pages in swap cache
  58. [ 7784.841583] Swap cache stats: add 3708, delete 3552, find 224/245
  59. [ 7784.841583] Free swap = 1984736kB
  60. [ 7784.841583] Total swap = 1998844kB
  61. [ 7784.861584] 1048560 pages RAM
  62. [ 7784.861584] 43694 pages reserved
  63. [ 7784.861584] 999918 pages shared
  64. [ 7784.861584] 189635 pages non-shared
  65. [ 7784.861584] ------------[ cut here ]------------
  66. [ 7784.861584] kernel BUG at fs/btrfs/file-item.c:638!
  67. [ 7784.861584] invalid opcode: 0000 [#1] SMP
  68. [ 7784.861584] CPU 0
  69. [ 7784.861584] Modules linked in: ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs sp5100_tco psmouse i2c_piix4 i2c_core serio_raw edac_core edac_mce_amd k8temp pata_atiixp ahci libahci btrfs e1000e zlib_deflate libcrc32c
  70. [ 7784.861584]
  71. [ 7784.861584] Pid: 1808, comm: btrfs-cleaner Tainted: G W 3.3.0-rc1-dangerdonteveruse+ #1 MICRO-STAR INTERNATIONAL CO., LTD MS-96B3/MS-96B3
  72. [ 7784.861584] RIP: 0010:[<ffffffffa007261f>] [<ffffffffa007261f>] btrfs_del_csums+0x30f/0x320 [btrfs]
  73. [ 7784.861584] RSP: 0018:ffff880115e5f9d0 EFLAGS: 00010282
  74. [ 7784.861584] RAX: 00000000fffffff4 RBX: ffff880117a286c0 RCX: 0000000000000004
  75. [ 7784.861584] RDX: 0000000000000000 RSI: 0000000000000082 RDI: 0000000000000246
  76. [ 7784.861584] RBP: ffff880115e5fa80 R08: 0000000000000000 R09: ffffffff81645fa0
  77. [ 7784.861584] R10: 0000000000000000 R11: 0000000000000000 R12: 00000006a8bbc000
  78. [ 7784.861584] R13: ffff88006b1d6668 R14: 00000000000003d0 R15: 00000006a8cb5000
  79. [ 7784.861584] FS: 00007f8dc0d3e700(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
  80. [ 7784.861584] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  81. [ 7784.861584] CR2: ffffffffff600400 CR3: 0000000001a05000 CR4: 00000000000006f0
  82. [ 7784.861584] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  83. [ 7784.861584] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  84. [ 7784.861584] Process btrfs-cleaner (pid: 1808, threadinfo ffff880115e5e000, task ffff880118b90000)
  85. [ 7784.861584] Stack:
  86. [ 7784.861584] ffff880115e5fa80 0000000000000004 00000000000003e4 00000000000f9000
  87. [ 7784.861584] 00000006a8cb4fff 000000040000000c ffff880117b93c18 ffff8800d95b8400
  88. [ 7784.861584] fffffffffffffff6 000006a8ac800080 ffff880117a28e00 000001980000e88d
  89. [ 7784.861584] Call Trace:
  90. [ 7784.861584] [<ffffffffa00ad6f8>] ? btrfs_tree_unlock+0x28/0xb0 [btrfs]
  91. [ 7784.861584] [<ffffffffa0066a88>] __btrfs_free_extent+0x488/0x6f0 [btrfs]
  92. [ 7784.861584] [<ffffffffa006ab75>] run_clustered_refs+0x225/0x8f0 [btrfs]
  93. [ 7784.861584] [<ffffffffa00bb343>] ? find_ref_head+0x83/0xe0 [btrfs]
  94. [ 7784.861584] [<ffffffffa00bc19d>] ? btrfs_add_delayed_tree_ref+0x14d/0x1e0 [btrfs]
  95. [ 7784.861584] [<ffffffffa006b3c8>] btrfs_run_delayed_refs+0x188/0x4b0 [btrfs]
  96. [ 7784.871584] [<ffffffffa007bd48>] btrfs_should_end_transaction+0x98/0xa0 [btrfs]
  97. [ 7784.871584] [<ffffffffa006d284>] btrfs_drop_snapshot+0x304/0x570 [btrfs]
  98. [ 7784.871584] [<ffffffffa007d3e0>] btrfs_clean_old_snapshots+0x120/0x160 [btrfs]
  99. [ 7784.871584] [<ffffffffa0075bd0>] cleaner_kthread+0x160/0x1c0 [btrfs]
  100. [ 7784.871584] [<ffffffffa0075a70>] ? write_dev_supers.clone.109+0x280/0x280 [btrfs]
  101. [ 7784.871584] [<ffffffff8106ea7e>] kthread+0x9e/0xb0
  102. [ 7784.871584] [<ffffffff81540da4>] kernel_thread_helper+0x4/0x10
  103. [ 7784.871584] [<ffffffff8106e9e0>] ? flush_kthread_worker+0xc0/0xc0
  104. [ 7784.871584] [<ffffffff81540da0>] ? gs_change+0x13/0x13
  105. [ 7784.871584] Code: 75 9a 4c 39 65 b9 0f 85 5d fe ff ff eb 8e 66 0f 1f 44 00 00 31 c0 eb 84 0f 1f 40 00 b8 f4 ff ff ff eb 8d 85 c0 0f 84 33 fe ff ff <0f> 0b 0f 0b 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5
  106. [ 7784.871584] RIP [<ffffffffa007261f>] btrfs_del_csums+0x30f/0x320 [btrfs]
  107. [ 7784.871584] RSP <ffff880115e5f9d0>
  108. [ 7784.871584] ---[ end trace a7919e7f17c0a728 ]---
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