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  1. # btrfsck --repair /dev/sda
  2. enabling repair mode
  3. failed to open /dev/sr0: No medium found
  4. failed to open /dev/sr0: No medium found
  5. Checking filesystem on /dev/sda
  6. UUID: d168622f-af3c-45cf-9ed4-39936f73c8b1
  7. checking extents
  8. checking free space cache
  9. cache and super generation don't match, space cache will be invalidated
  10. checking fs roots
  11. checking csums
  12. checking root refs
  13. found 639365677702 bytes used err is 0
  14. total csum bytes: 1711284064
  15. total tree bytes: 2379923456
  16. total fs tree bytes: 149897216
  17. total extent tree bytes: 136806400
  18. btree space waste bytes: 351249002
  19. file data blocks allocated: 79089417617408
  20. referenced 1678034071552
  21. Btrfs v0.20-rc1-358-g194aa4a
  22.  
  23.  
  24.  
  25.  
  26. [197135.211345] btrfs: use lzo compression
  27. [197135.212478] btrfs: enabling auto defrag
  28. [197135.213590] btrfs: force clearing of disk cache
  29. [197135.214706] btrfs: enabling auto recovery
  30. [197135.215811] btrfs: disk space caching is enabled
  31. [197135.216917] btrfs: has skinny extents
  32. [197135.995787] btrfs: bdev /dev/sdb errs: wr 0, rd 0, flush 0, corrupt 2656, gen 0
  33. [197135.997016] btrfs: bdev /dev/sdd errs: wr 0, rd 0, flush 0, corrupt 2656, gen 0
  34. [197135.998120] btrfs: bdev /dev/sda errs: wr 0, rd 0, flush 0, corrupt 36205, gen 0
  35. [197158.837495] btrfs: relocating block group 6678913089536 flags 129
  36. [197233.622735] btrfs: found 85 extents
  37. [197239.987699] btrfs: found 85 extents
  38. [197240.347380] btrfs: relocating block group 6675691864064 flags 129
  39. [197240.753715] btrfs: relocating block group 6227941523456 flags 129
  40. [197288.631735] btrfs: found 3173 extents
  41. [197293.665384] ------------[ cut here ]------------
  42. [197293.666093] kernel BUG at fs/btrfs/relocation.c:1055!
  43. [197293.666788] invalid opcode: 0000 [#1] PREEMPT SMP
  44. [197293.667496] Modules linked in: xt_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables nfsd auth_rpcgss oid_registry nfs_acl mt2131 s5h1409 bridge stp llc tun ipt_MASQUERADE bnep iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_filter ip_tables x_tables tda8290 tuner au8522_dig au8522_common cx25840 nls_cp437 vfat fat x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel arc4 kvm crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev hid_microsoft iTCO_wdt ppdev iTCO_vendor_support evdev psmouse serio_raw microcode ir_lirc_codec cx23885 pcspkr btcx_risc altera_ci lirc_dev ir_mce_kbd_decoder videobuf_dvb ir_sanyo_decoder ir_jvc_decoder tda18271 ir_sony_decoder ir_rc6_decoder ir_nec_decoder
  45. [197293.672473] ir_rc5_decoder altera_stapl btusb cx2341x ath9k au0828 videobuf_dma_sg ath9k_common ath9k_hw videobuf_vmalloc tveeprom videobuf_core dvb_core ath usbhid rc_rc6_mce bluetooth snd_hda_codec_hdmi v4l2_common mac80211 videodev mceusb media crc16 cfg80211 rc_core hid 8139too snd_hda_codec_realtek 8139cp rfkill r8169 i915 mii intel_agp intel_gtt drm_kms_helper drm snd_hda_intel snd_hda_codec i2c_algo_bit snd_hwdep fan thermal mperf snd_pcm parport_pc snd_page_alloc snd_timer parport i2c_i801 snd soundcore i2c_core processor lpc_ich button video nfs lockd sunrpc fscache btrfs libcrc32c xor zlib_deflate raid6_pq sr_mod sd_mod cdrom crc32c_intel ehci_pci ehci_hcd ahci libahci libata scsi_mod usbcore usb_common
  46. [197293.677997] CPU: 1 PID: 27765 Comm: btrfs Not tainted 3.11.0-1-ARCH-00013-g584d88b-dirty #1
  47. [197293.678945] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./Z68P-DS3, BIOS U1a 05/16/2012
  48. [197293.679892] task: ffff8804094932a0 ti: ffff8803671b2000 task.ti: ffff8803671b2000
  49. [197293.680828] RIP: 0010:[<ffffffffa024c5fa>] [<ffffffffa024c5fa>] build_backref_tree+0x111a/0x11c0 [btrfs]
  50. [197293.681796] RSP: 0018:ffff8803671b39f0 EFLAGS: 00010246
  51. [197293.682738] RAX: 0000000000000000 RBX: ffff88030b1c8000 RCX: ffff8803ddcc2150
  52. [197293.683702] RDX: ffff8803671b3a60 RSI: ffff88030b1c8020 RDI: ffff8803ddcc2140
  53. [197293.684679] RBP: ffff8803671b3ad0 R08: ffff8802c256ee80 R09: ffff8802c256e880
  54. [197293.685662] R10: ffff88040f001900 R11: ffff8803671b3fd8 R12: 0000000000000000
  55. [197293.686647] R13: ffff880406a742d0 R14: ffff8802c256ec80 R15: ffff8803ddcc2150
  56. [197293.687628] FS: 00007fae0c63d740(0000) GS:ffff88041f280000(0000) knlGS:0000000000000000
  57. [197293.688629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  58. [197293.689642] CR2: 00007f81d61f6f30 CR3: 00000002ecf06000 CR4: 00000000000407e0
  59. [197293.690676] Stack:
  60. [197293.691708] ffff8802c256e880 ffff880407f69e60 ffff8802c256ee80 ffff880406a742d0
  61. [197293.692783] ffff8802c256ee80 ffff8803c04fe000 ffff880406a74480 ffff8802c256eec0
  62. [197293.693866] ffff88030b1c8120 ffff8802c256e880 ffff88030b1c8124 ffff88030b1c8020
  63. [197293.694957] Call Trace:
  64. [197293.696027] [<ffffffffa024dae8>] relocate_tree_blocks+0x1d8/0x630 [btrfs]
  65. [197293.697122] [<ffffffffa024e368>] ? add_data_references+0x248/0x280 [btrfs]
  66. [197293.698222] [<ffffffffa024ef70>] relocate_block_group+0x280/0x690 [btrfs]
  67. [197293.699326] [<ffffffffa024f51f>] btrfs_relocate_block_group+0x19f/0x2e0 [btrfs]
  68. [197293.700440] [<ffffffffa02283a8>] btrfs_relocate_chunk.isra.32+0x68/0x780 [btrfs]
  69. [197293.701553] [<ffffffffa01e2a76>] ? btrfs_search_slot+0x436/0x940 [btrfs]
  70. [197293.702664] [<ffffffffa021df19>] ? release_extent_buffer+0xa9/0xd0 [btrfs]
  71. [197293.703787] [<ffffffffa02236af>] ? free_extent_buffer+0x4f/0xa0 [btrfs]
  72. [197293.704917] [<ffffffffa022afc9>] btrfs_shrink_device+0x1e9/0x420 [btrfs]
  73. [197293.706038] [<ffffffffa022d70d>] btrfs_rm_device+0x31d/0x7f0 [btrfs]
  74. [197293.707158] [<ffffffffa023717d>] btrfs_ioctl+0x1a3d/0x1de0 [btrfs]
  75. [197293.708278] [<ffffffff814dbafc>] ? __do_page_fault+0x2ec/0x5c0
  76. [197293.709392] [<ffffffff8115d25a>] ? __vma_link_rb+0x6a/0x90
  77. [197293.710510] [<ffffffff8115d337>] ? vma_link+0xb7/0xc0
  78. [197293.711616] [<ffffffff811abec5>] do_vfs_ioctl+0x2e5/0x4d0
  79. [197293.712721] [<ffffffff811ac131>] SyS_ioctl+0x81/0xa0
  80. [197293.713821] [<ffffffff814dbdde>] ? do_page_fault+0xe/0x10
  81. [197293.714918] [<ffffffff814dfd5d>] system_call_fastpath+0x1a/0x1f
  82. [197293.715994] Code: 4c 89 ef e8 59 16 f9 ff 48 8b bd 50 ff ff ff e8 4d 16 f9 ff 48 83 bd 30 ff ff ff 00 0f 85 14 fd ff ff 31 c0 e9 be ef ff ff 0f 0b <0f> 0b 48 8b 85 30 ff ff ff 49 8d 7e 20 48 8b 70 18 48 89 c2 e8
  83. [197293.718346] RIP [<ffffffffa024c5fa>] build_backref_tree+0x111a/0x11c0 [btrfs]
  84. [197293.719443] RSP <ffff8803671b39f0>
  85. [197293.720514] ---[ end trace 1db0bd83aef77e2b ]---
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