XFS Failed to recover EFIs - XFS_WANT_CORRUPTED_GOTO at line 1602 of xfs_alloc.c

[Mark Tinguely]

On 02/21/14 08:48, Bruno Prémont wrote:
> On Fri, 21 Feb 2014 08:14:12 -0600 Mark Tinguely wrote:
>> On 02/21/14 01:47, Bruno Prémont wrote:
>>> A virtual server of mine stopped working properly yesterday because one
>>> partition became corrupted (or corruption has been stumbled over).
>
> The running kernel was 3.12.6.
>
> I would have appreciated if the XFS filesystem had continued being
> accessible even if only in read-only mode instead of completely shutting
> down. That would have made it possible to gather more information and
> doing so more easily as well.

Well it appears that the xlog_cil_push problem is not going to be fixed 
soon, so I will repost the patch for the log recovery portion.


>>> Restarting the system any attempt to mount that partition (without
>>> -o norecovery,ro) results in the following trace (transcribed):
>>> XFS (sda5): Mounting Filesystem
>>> XFS (sda5): Starting recovery (logdev: internal)
>>> XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file
>>>        /var/cache/kernel/linux-git/fs/xfs/xfs_alloc.c. Caller
>>> 0xffffffff8116d926
>>> CPU: 0 PID: 606 Commm: mount Not tainted 3.13.0-hetzner #1
>>> Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
>>>    000000000002eb84 ffff88001dc53ab8 ffffffff813ca339 ffff88001dc53ad8
>>>    ffffffff81156d4a ffffffff8116d926 00000000000002a8 ffff88001dc53b68
>>>    ffffffff8116b8dd ffff88001dd7ccc0 0000000000000000 0000000000000001
>>> Call Trace:
>>>    [<ffffffff813ca339>] dump_stack+0x19/0x1b
>>>    [<ffffffff81156d4a>] xfs_error_report+0x3a0x40
>>>    [<ffffffff8116d926>] ? xfs_free_extent+0xd6/0x120
>>>    [<ffffffff8116b8dd>] xfs_free_ag_extent+0x48d/0x5c0
>>>    [<ffffffff8116d926>] xfs_free_extent+0xd6/0x120
>>>    [<ffffffff810d5fa4>] ? kmem_cache_alloc+0xa4/0xb0
>>>    [<ffffffff8119c390>] xlog_recover_process_efi+0x170/0x1b0
>>>    [<ffffffff81074709>] ? wake_up_bit+0x29/0x40
>>>    [<ffffffff8119d106>] xlog_recover_process_efis.isra.27+0x46/0x80
>>>    [<ffffffff811a17c5>] xlog_recover_finish+0x2c/0x50
>>>    [<ffffffff811a5c4c>] xfs_log_mount_finish+0x2c/0x50
>>>    [<ffffffff811958ee>] ? xfs_iunlock+0x6e/0x90
>>>    [<ffffffff81164733>] xfs_mountfs+0x473/0x690
>>>    [<ffffffff81167072>] xfs_fs_fill_super+0x292/0x310
>>>    [<ffffffff810e7a61>] mount_bdev+0x191/0x1d0
>>>    [<ffffffff811e337c>] ? ida_get_new_above+0x21c/0x290
>>>    [<ffffffff81166de0>] ? xfs_parseargs+0xc10/0xc10
>>>    [<ffffffff81165310>] xfs_fs_mount+0x10/0x20
>>>    [<ffffffff810e7cab>] mount_fs+0x1b/0xd0
>>>    [<ffffffff811001ad>] vfs_kern_mount+0x6d/0x100
>>>    [<ffffffff811019bb>] do_mount+0x1fb/0x9d0
>>>    [<ffffffff810b3b43>] ? strndup_user+0x53/0x70
>>>    [<ffffffff81102469>] SyS_mount+0x89/0xd0
>>>    [<ffffffff831ce4b7>] system_call_fastpath+0x16/0x1b
>>> XFS (sda5): Failed to recover EFIs
>>> XFS (sda5): log mount finish failed
>>
>> curious on which version of Linux hit this problem?
>
> The trace was produced by 3.13 kernel from kernel.org.
>
> A reboot attempt with 3.12.6 showed a similar trace though I didn't
> record it.

The original problem is attempting to free a partial free extent,
I was curious because that problem has been flaring up recently 
internally and in the community.

Thank-you for the information.

--Mark.