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[Rafael David Tinoco <inaddy@xxxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Changed in: linux (Ubuntu)
     Assignee: Rafael David Tinoco (inaddy) => (unassigned)

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https://bugs.launchpad.net/bugs/1382801

Title:
  XFS: mount hangs for corrupted filesystem

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  It was brought to my attention this situation:

  --------
  mount hangs at the following stack:
  crash> bt 2882
  PID: 2882 TASK: ffff88084e75c800 CPU: 7 COMMAND: "mount"
  #0 [ffff880036a73b38] schedule at ffffffff8175e320
  #1 [ffff880036a73bc0] xfs_ail_push_all_sync at ffffffffa02e5478 [xfs]
  #2 [ffff880036a73c30] xfs_log_quiesce at ffffffffa02e0b67 [xfs]
  #3 [ffff880036a73c50] xfs_log_unmount at ffffffffa02e0bb6 [xfs]
  #4 [ffff880036a73c70] xfs_mountfs at ffffffffa029332a [xfs]
  #5 [ffff880036a73ce0] xfs_fs_fill_super at ffffffffa0296707 [xfs]
  #6 [ffff880036a73d20] mount_bdev at ffffffff811cd4a9
  #7 [ffff880036a73db0] xfs_fs_mount at ffffffffa02946f5 [xfs]
  #8 [ffff880036a73dc0] mount_fs at ffffffff811ce123
  #9 [ffff880036a73e10] vfs_kern_mount at ffffffff811e9bf6
  #10 [ffff880036a73e60] do_new_mount at ffffffff811eb3a4
  #11 [ffff880036a73ec0] do_mount at ffffffff811ec706
  #12 [ffff880036a73f20] sys_mount at ffffffff811ecad0
  #13 [ffff880036a73f80] system_call_fastpath at ffffffff8176ae2d
  RIP: 00007f2340eb6c2a RSP: 00007fff25675368 RFLAGS: 00010206
  RAX: 00000000000000a5 RBX: ffffffff8176ae2d RCX: 0000000000000026
  RDX: 0000000000b04c20 RSI: 0000000000b04bf0 RDI: 0000000000b04bd0
  RBP: 00000000c0ed0400 R8: 0000000000b04c70 R9: 0000000000000001
  R10: ffffffffc0ed0400 R11: 0000000000000202 R12: 0000000000b04bf0
  R13: 0000000000b04b50 R14: 0000000000000400 R15: 0000000000000000
  ORIG_RAX: 00000000000000a5 CS: 0033 SS: 002b

  The corresponding disk is /dev/sdd1, any IO (xfs_check, etc) also
  hangs and had "D" state.

  This reproducible with 3.11 and 3.13 kernel both.

  The storage node is out of service because of this problem
  --------

  I'm still asking for more data (sosreport and kernel dump).

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