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btrfs snapshot oops

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Oct 26th, 2010
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  1. [4505005.500362] btrfs: truncated 1 orphans
  2. [4510693.053619] ------------[ cut here ]------------
  3. [4510693.053849] kernel BUG at fs/btrfs/ioctl.c:404!
  4. [4510693.054077] invalid opcode: 0000 [#1] SMP
  5. [4510693.054307] last sysfs file: /sys/devices/virtual/block/md1/md/metadata_version
  6. [4510693.054756] CPU 3
  7. [4510693.054762] Modules linked in: btrfs zlib_deflate crc32c libcrc32c dm_snapshot raid1 e1000e [last unloaded: scsi_wait_scan]
  8. [4510693.055483]
  9. [4510693.055705] Pid: 20194, comm: btrfs Not tainted 2.6.34.5 #1 X8STi/X8STi
  10. [4510693.055939] RIP: 0010:[<ffffffffa009773f>] [<ffffffffa009773f>] btrfs_mksubvol+0x216/0x2e1 [btrfs]
  11. [4510693.056457] RSP: 0018:ffff880114971d98 EFLAGS: 00010246
  12. [4510693.056685] RAX: 0000000000000000 RBX: ffff8801660c1e80 RCX: ffffffffa007f133
  13. [4510693.057178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880159c0dd80
  14. [4510693.057628] RBP: 0000000000000000 R08: ffffe8ffffc6a698 R09: ffff880114971b70
  15. [4510693.058122] R10: 0000000000000011 R11: ffffffffa004e026 R12: ffff88021ed4a800
  16. [4510693.058569] R13: ffff880071897800 R14: ffff88021bfb8d10 R15: 0000000000000015
  17. [4510693.059044] FS: 00007fb063927730(0000) GS:ffff880002060000(0000) knlGS:0000000000000000
  18. [4510693.059527] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  19. [4510693.059753] CR2: 0000000002797000 CR3: 00000001e38a1000 CR4: 00000000000006e0
  20. [4510693.060246] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  21. [4510693.060694] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  22. [4510693.061143] Process btrfs (pid: 20194, threadinfo ffff880114970000, task ffff8800109a8d80)
  23. [4510693.061591] Stack:
  24. [4510693.061812] ffffffffa0097850 00000000ffffffe2 ffff8802040b0008 ffff88021d14c6d0
  25. [4510693.062051] <0> ffff88021bfb8dc0 ffff8802040b0008 ffff88021d14dc80 ffff8802040b0000
  26. [4510693.062511] <0> ffff88021d14c6c0 0000000000000015 ffff88021bfb8d10 ffffffffa009790c
  27. [4510693.063189] Call Trace:
  28. [4510693.063420] [<ffffffffa0097850>] ? btrfs_ioctl_snap_create+0x46/0x126 [btrfs]
  29. [4510693.063875] [<ffffffffa009790c>] ? btrfs_ioctl_snap_create+0x102/0x126 [btrfs]
  30. [4510693.064330] [<ffffffffa0099e6c>] ? btrfs_ioctl+0x417/0x85f [btrfs]
  31. [4510693.064562] [<ffffffff810da58e>] ? vfs_ioctl+0x21/0x92
  32. [4510693.064792] [<ffffffff810daaae>] ? do_vfs_ioctl+0x439/0x471
  33. [4510693.065118] [<ffffffff810dab37>] ? sys_ioctl+0x51/0x70
  34. [4510693.065348] [<ffffffff8100206b>] ? system_call_fastpath+0x16/0x1b
  35. [4510693.065576] Code: 89 e7 e8 fb eb fc ff 49 8b 45 28 4c 89 ee 48 8b 78 10 e8 26 79 fe ff 48 89 c6 48 3d 00 f0 ff ff 76 04 89 c5 eb 25 48 85 c0 75 04 <0f> 0b eb fe 4c 89 ef e8 f6 66 04 e1 eb 16 44 89 f9 48 8b 54 24
  36. [4510693.066469] RIP [<ffffffffa009773f>] btrfs_mksubvol+0x216/0x2e1 [btrfs]
  37. [4510693.066707] RSP <ffff880114971d98>
  38. [4510693.067279] ---[ end trace 1ebc8298cfb631a6 ]---
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