RE: xfs mount hung on a corrupted filesystem

RE: xfs mount hung on a corrupted filesystem

[Kirubakaran Kaliannan]

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Hi All,



Sending it once again, in case we all missed this earlier mail,



Any help is much appreciated.

This bug hangs the mount with the following stack. Similar to (
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801)



root@zios-vsa-00000253-vc-0:~# cat /proc/26511/task/26511/stack

[<ffffffffc0776c69>] xfs_ail_push_all_sync+0xa9/0xe0 [xfs]

[<ffffffffc076c2e7>] xfs_log_quiesce+0x37/0x70 [xfs]

[<ffffffffc076c33a>] xfs_log_unmount+0x1a/0x70 [xfs]

[<ffffffffc0760845>] xfs_mountfs+0x5e5/0x7b0 [xfs]

[<ffffffffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]

[<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0

[<ffffffffc0761c95>] xfs_fs_mount+0x15/0x20 [xfs]

[<ffffffff811ebb79>] mount_fs+0x39/0x1b0

[<ffffffff812070db>] vfs_kern_mount+0x6b/0x120

[<ffffffff8120a032>] do_mount+0x222/0xca0

[<ffffffff8120adab>] SyS_mount+0x8b/0xe0

[<ffffffff817179cd>] system_call_fastpath+0x16/0x1b

[<ffffffffffffffff>] 0xffffffffffffffff





Is this a known issue ? otherwise how to avoid the hang, a mount failure
will help to force-repair the filesystem and remount.



Thanks

-kiru



*From:* Kirubakaran Kaliannan [mailto:kirubak@zadarastorage.com]
*Sent:* Wednesday, June 29, 2016 11:25 AM
*To:* 'xfs@oss.sgi.com'
*Subject:* xfs mount hung on a corrupted filesystem





Hi XFS-developers,



We are running XFS on ubuntu kernel-3.18.19



On a drive failure connected to my server, the file-system experienced the
corruption. Attached the corruption.out file which contains the information
regarding the corruption.



Later when the file-system is unmounted and mounted back, the mount hung
with the following stack (attached the dmesg when mount is run)



------------------

[ 3611.093909]  [<ffffffff81710c85>] dump_stack+0x4e/0x71

[ 3611.093943]  [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [xfs]

[ 3611.093964]  [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x170 [xfs]

[ 3611.093984]  [<ffffffffc07bd45f>]
xfs_free_ag_extent.constprop.13+0x20f/0x980 [xfs]

[ 3611.094012]  [<ffffffffc07be4cf>] ? xfs_alloc_fix_freelist+0x4af/0x510
[xfs]

[ 3611.094070]  [<ffffffffc07beccc>] xfs_free_extent+0x10c/0x170 [xfs]

[ 3611.094120]  [<ffffffffc0827da5>] xlog_recover_process_efi+0x175/0x1b0
[xfs]

[ 3611.094180]  [<ffffffffc0829ed4>]
xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]

[ 3611.094227]  [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0 [xfs]

[ 3611.094271]  [<ffffffffc0821204>] xfs_log_mount_finish+0x34/0x50 [xfs]

[ 3611.094317]  [<ffffffffc0817769>] xfs_mountfs+0x509/0x7b0 [xfs]

[ 3611.094359]  [<ffffffffc081afca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]

[ 3611.094369]  [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0

[ 3611.094406]  [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0xbe0 [xfs]

[ 3611.094443]  [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x20 [xfs]

[ 3611.094452]  [<ffffffff811ebb79>] mount_fs+0x39/0x1b0

[ 3611.094460]  [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20

[ 3611.094472]  [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120

[ 3611.094479]  [<ffffffff8120a032>] do_mount+0x222/0xca0

[ 3611.094486]  [<ffffffff8120adab>] SyS_mount+0x8b/0xe0

[ 3611.094495]  [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b

[ 3611.094512] XFS (dm-56): Failed to recover EFIs

[ 3611.095813] XFS (dm-56): log mount finish failed

-----------



My initial analysis shows, exactly the issue is same as in (but expired)

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801



filesystem getting corrupted is the first problem. But the mount hang
instead of failing is making it difficult to repair the filesystem.



Can you please help progress on this issue ?

I have the metadump of the filesystem, and can provide any details required.



Thanks

-kiru

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xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

Re: xfs mount hung on a corrupted filesystem

[Brian Foster]

On Wed, Jul 06, 2016 at 04:04:54PM +0530, Kirubakaran Kaliannan wrote:
> Hi All,
> 
> 
> 
> Sending it once again, in case we all missed this earlier mail,
> 
> 
> 
> Any help is much appreciated.
> 
> This bug hangs the mount with the following stack. Similar to (
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801)
> 

It's hard to say for sure, but this could be due to historical EFI/EFD
reference counting brokenness. This was known to lead to unmount hangs
on mount failure, shutdown situations, etc. This code was totally
reworked in v4.3.0 and I don't think includes any fixes that are easily
backportable to such an old kernel. You should be able to avoid this by
repairing the fs such that it mounts, fwiw.

Brian

> 
> 
> root@zios-vsa-00000253-vc-0:~# cat /proc/26511/task/26511/stack
> 
> [<ffffffffc0776c69>] xfs_ail_push_all_sync+0xa9/0xe0 [xfs]
> 
> [<ffffffffc076c2e7>] xfs_log_quiesce+0x37/0x70 [xfs]
> 
> [<ffffffffc076c33a>] xfs_log_unmount+0x1a/0x70 [xfs]
> 
> [<ffffffffc0760845>] xfs_mountfs+0x5e5/0x7b0 [xfs]
> 
> [<ffffffffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]
> 
> [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
> 
> [<ffffffffc0761c95>] xfs_fs_mount+0x15/0x20 [xfs]
> 
> [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
> 
> [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
> 
> [<ffffffff8120a032>] do_mount+0x222/0xca0
> 
> [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
> 
> [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
> 
> [<ffffffffffffffff>] 0xffffffffffffffff
> 
> 
> 
> 
> 
> Is this a known issue ? otherwise how to avoid the hang, a mount failure
> will help to force-repair the filesystem and remount.
> 
> 
> 
> Thanks
> 
> -kiru
> 
> 
> 
> *From:* Kirubakaran Kaliannan [mailto:kirubak@zadarastorage.com]
> *Sent:* Wednesday, June 29, 2016 11:25 AM
> *To:* 'xfs@oss.sgi.com'
> *Subject:* xfs mount hung on a corrupted filesystem
> 
> 
> 
> 
> 
> Hi XFS-developers,
> 
> 
> 
> We are running XFS on ubuntu kernel-3.18.19
> 
> 
> 
> On a drive failure connected to my server, the file-system experienced the
> corruption. Attached the corruption.out file which contains the information
> regarding the corruption.
> 
> 
> 
> Later when the file-system is unmounted and mounted back, the mount hung
> with the following stack (attached the dmesg when mount is run)
> 
> 
> 
> ------------------
> 
> [ 3611.093909]  [<ffffffff81710c85>] dump_stack+0x4e/0x71
> 
> [ 3611.093943]  [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [xfs]
> 
> [ 3611.093964]  [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x170 [xfs]
> 
> [ 3611.093984]  [<ffffffffc07bd45f>]
> xfs_free_ag_extent.constprop.13+0x20f/0x980 [xfs]
> 
> [ 3611.094012]  [<ffffffffc07be4cf>] ? xfs_alloc_fix_freelist+0x4af/0x510
> [xfs]
> 
> [ 3611.094070]  [<ffffffffc07beccc>] xfs_free_extent+0x10c/0x170 [xfs]
> 
> [ 3611.094120]  [<ffffffffc0827da5>] xlog_recover_process_efi+0x175/0x1b0
> [xfs]
> 
> [ 3611.094180]  [<ffffffffc0829ed4>]
> xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]
> 
> [ 3611.094227]  [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0 [xfs]
> 
> [ 3611.094271]  [<ffffffffc0821204>] xfs_log_mount_finish+0x34/0x50 [xfs]
> 
> [ 3611.094317]  [<ffffffffc0817769>] xfs_mountfs+0x509/0x7b0 [xfs]
> 
> [ 3611.094359]  [<ffffffffc081afca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]
> 
> [ 3611.094369]  [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
> 
> [ 3611.094406]  [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0xbe0 [xfs]
> 
> [ 3611.094443]  [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x20 [xfs]
> 
> [ 3611.094452]  [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
> 
> [ 3611.094460]  [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20
> 
> [ 3611.094472]  [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
> 
> [ 3611.094479]  [<ffffffff8120a032>] do_mount+0x222/0xca0
> 
> [ 3611.094486]  [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
> 
> [ 3611.094495]  [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
> 
> [ 3611.094512] XFS (dm-56): Failed to recover EFIs
> 
> [ 3611.095813] XFS (dm-56): log mount finish failed
> 
> -----------
> 
> 
> 
> My initial analysis shows, exactly the issue is same as in (but expired)
> 
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801
> 
> 
> 
> filesystem getting corrupted is the first problem. But the mount hang
> instead of failing is making it difficult to repair the filesystem.
> 
> 
> 
> Can you please help progress on this issue ?
> 
> I have the metadump of the filesystem, and can provide any details required.
> 
> 
> 
> Thanks
> 
> -kiru

> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/xfs

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

RE: xfs mount hung on a corrupted filesystem

[Kirubakaran Kaliannan]

Thanks Brain, I will check whether we can move up to v4.3.

In the mean time, I want to automate this situation. Run xfsrepair -L
before trying to mount, By checking whether the file system is corrupted
without mounting it. Not sure whether we can differentiate a mount which
is going to hang and which is not. ?

Thanks,
-kiru



-----Original Message-----
From: Brian Foster [mailto:bfoster@redhat.com]
Sent: Wednesday, July 06, 2016 5:06 PM
To: Kirubakaran Kaliannan
Cc: xfs@oss.sgi.com
Subject: Re: xfs mount hung on a corrupted filesystem

On Wed, Jul 06, 2016 at 04:04:54PM +0530, Kirubakaran Kaliannan wrote:
> Hi All,
>
>
>
> Sending it once again, in case we all missed this earlier mail,
>
>
>
> Any help is much appreciated.
>
> This bug hangs the mount with the following stack. Similar to (
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801)
>

It's hard to say for sure, but this could be due to historical EFI/EFD
reference counting brokenness. This was known to lead to unmount hangs on
mount failure, shutdown situations, etc. This code was totally reworked in
v4.3.0 and I don't think includes any fixes that are easily backportable
to such an old kernel. You should be able to avoid this by repairing the
fs such that it mounts, fwiw.

Brian

>
>
> root@zios-vsa-00000253-vc-0:~# cat /proc/26511/task/26511/stack
>
> [<ffffffffc0776c69>] xfs_ail_push_all_sync+0xa9/0xe0 [xfs]
>
> [<ffffffffc076c2e7>] xfs_log_quiesce+0x37/0x70 [xfs]
>
> [<ffffffffc076c33a>] xfs_log_unmount+0x1a/0x70 [xfs]
>
> [<ffffffffc0760845>] xfs_mountfs+0x5e5/0x7b0 [xfs]
>
> [<ffffffffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]
>
> [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
>
> [<ffffffffc0761c95>] xfs_fs_mount+0x15/0x20 [xfs]
>
> [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
>
> [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
>
> [<ffffffff8120a032>] do_mount+0x222/0xca0
>
> [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
>
> [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
>
> [<ffffffffffffffff>] 0xffffffffffffffff
>
>
>
>
>
> Is this a known issue ? otherwise how to avoid the hang, a mount
> failure will help to force-repair the filesystem and remount.
>
>
>
> Thanks
>
> -kiru
>
>
>
> *From:* Kirubakaran Kaliannan [mailto:kirubak@zadarastorage.com]
> *Sent:* Wednesday, June 29, 2016 11:25 AM
> *To:* 'xfs@oss.sgi.com'
> *Subject:* xfs mount hung on a corrupted filesystem
>
>
>
>
>
> Hi XFS-developers,
>
>
>
> We are running XFS on ubuntu kernel-3.18.19
>
>
>
> On a drive failure connected to my server, the file-system experienced
> the corruption. Attached the corruption.out file which contains the
> information regarding the corruption.
>
>
>
> Later when the file-system is unmounted and mounted back, the mount
> hung with the following stack (attached the dmesg when mount is run)
>
>
>
> ------------------
>
> [ 3611.093909]  [<ffffffff81710c85>] dump_stack+0x4e/0x71
>
> [ 3611.093943]  [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [xfs]
>
> [ 3611.093964]  [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x170
> [xfs]
>
> [ 3611.093984]  [<ffffffffc07bd45f>]
> xfs_free_ag_extent.constprop.13+0x20f/0x980 [xfs]
>
> [ 3611.094012]  [<ffffffffc07be4cf>] ?
> xfs_alloc_fix_freelist+0x4af/0x510
> [xfs]
>
> [ 3611.094070]  [<ffffffffc07beccc>] xfs_free_extent+0x10c/0x170 [xfs]
>
> [ 3611.094120]  [<ffffffffc0827da5>]
> xlog_recover_process_efi+0x175/0x1b0
> [xfs]
>
> [ 3611.094180]  [<ffffffffc0829ed4>]
> xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]
>
> [ 3611.094227]  [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0
> [xfs]
>
> [ 3611.094271]  [<ffffffffc0821204>] xfs_log_mount_finish+0x34/0x50
> [xfs]
>
> [ 3611.094317]  [<ffffffffc0817769>] xfs_mountfs+0x509/0x7b0 [xfs]
>
> [ 3611.094359]  [<ffffffffc081afca>] xfs_fs_fill_super+0x2ca/0x360
> [xfs]
>
> [ 3611.094369]  [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
>
> [ 3611.094406]  [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0xbe0 [xfs]
>
> [ 3611.094443]  [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x20 [xfs]
>
> [ 3611.094452]  [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
>
> [ 3611.094460]  [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20
>
> [ 3611.094472]  [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
>
> [ 3611.094479]  [<ffffffff8120a032>] do_mount+0x222/0xca0
>
> [ 3611.094486]  [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
>
> [ 3611.094495]  [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
>
> [ 3611.094512] XFS (dm-56): Failed to recover EFIs
>
> [ 3611.095813] XFS (dm-56): log mount finish failed
>
> -----------
>
>
>
> My initial analysis shows, exactly the issue is same as in (but
> expired)
>
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801
>
>
>
> filesystem getting corrupted is the first problem. But the mount hang
> instead of failing is making it difficult to repair the filesystem.
>
>
>
> Can you please help progress on this issue ?
>
> I have the metadump of the filesystem, and can provide any details
required.
>
>
>
> Thanks
>
> -kiru

> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/xfs

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

Re: xfs mount hung on a corrupted filesystem

[Brian Foster]

On Thu, Jul 07, 2016 at 10:27:11AM +0530, Kirubakaran Kaliannan wrote:
> Thanks Brain, I will check whether we can move up to v4.3.
> 
> In the mean time, I want to automate this situation. Run xfsrepair -L
> before trying to mount, By checking whether the file system is corrupted
> without mounting it. Not sure whether we can differentiate a mount which
> is going to hang and which is not. ?
> 

I don't think you'll easily be able to tell whether log recovery is
going to hang. The best you can probably do is to run 'xfs_repair -n'
and identify whether it flags any issues based on the return code.

Note that a filesystem that requires log recovery can appear
inconsistent to repair and xfs_repair doesn't replay the log. Therefore,
I would only suggest to use this to flag whether a mount has the
potential to hang. If you automatically run xfs_repair -L in such cases,
you destroy the log in most cases where log recovery is required (e.g.,
you basically just bypass the log). All in all, that's not something I
would recommend...

Brian

> Thanks,
> -kiru
> 
> 
> 
> -----Original Message-----
> From: Brian Foster [mailto:bfoster@redhat.com]
> Sent: Wednesday, July 06, 2016 5:06 PM
> To: Kirubakaran Kaliannan
> Cc: xfs@oss.sgi.com
> Subject: Re: xfs mount hung on a corrupted filesystem
> 
> On Wed, Jul 06, 2016 at 04:04:54PM +0530, Kirubakaran Kaliannan wrote:
> > Hi All,
> >
> >
> >
> > Sending it once again, in case we all missed this earlier mail,
> >
> >
> >
> > Any help is much appreciated.
> >
> > This bug hangs the mount with the following stack. Similar to (
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801)
> >
> 
> It's hard to say for sure, but this could be due to historical EFI/EFD
> reference counting brokenness. This was known to lead to unmount hangs on
> mount failure, shutdown situations, etc. This code was totally reworked in
> v4.3.0 and I don't think includes any fixes that are easily backportable
> to such an old kernel. You should be able to avoid this by repairing the
> fs such that it mounts, fwiw.
> 
> Brian
> 
> >
> >
> > root@zios-vsa-00000253-vc-0:~# cat /proc/26511/task/26511/stack
> >
> > [<ffffffffc0776c69>] xfs_ail_push_all_sync+0xa9/0xe0 [xfs]
> >
> > [<ffffffffc076c2e7>] xfs_log_quiesce+0x37/0x70 [xfs]
> >
> > [<ffffffffc076c33a>] xfs_log_unmount+0x1a/0x70 [xfs]
> >
> > [<ffffffffc0760845>] xfs_mountfs+0x5e5/0x7b0 [xfs]
> >
> > [<ffffffffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]
> >
> > [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
> >
> > [<ffffffffc0761c95>] xfs_fs_mount+0x15/0x20 [xfs]
> >
> > [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
> >
> > [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
> >
> > [<ffffffff8120a032>] do_mount+0x222/0xca0
> >
> > [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
> >
> > [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
> >
> > [<ffffffffffffffff>] 0xffffffffffffffff
> >
> >
> >
> >
> >
> > Is this a known issue ? otherwise how to avoid the hang, a mount
> > failure will help to force-repair the filesystem and remount.
> >
> >
> >
> > Thanks
> >
> > -kiru
> >
> >
> >
> > *From:* Kirubakaran Kaliannan [mailto:kirubak@zadarastorage.com]
> > *Sent:* Wednesday, June 29, 2016 11:25 AM
> > *To:* 'xfs@oss.sgi.com'
> > *Subject:* xfs mount hung on a corrupted filesystem
> >
> >
> >
> >
> >
> > Hi XFS-developers,
> >
> >
> >
> > We are running XFS on ubuntu kernel-3.18.19
> >
> >
> >
> > On a drive failure connected to my server, the file-system experienced
> > the corruption. Attached the corruption.out file which contains the
> > information regarding the corruption.
> >
> >
> >
> > Later when the file-system is unmounted and mounted back, the mount
> > hung with the following stack (attached the dmesg when mount is run)
> >
> >
> >
> > ------------------
> >
> > [ 3611.093909]  [<ffffffff81710c85>] dump_stack+0x4e/0x71
> >
> > [ 3611.093943]  [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [xfs]
> >
> > [ 3611.093964]  [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x170
> > [xfs]
> >
> > [ 3611.093984]  [<ffffffffc07bd45f>]
> > xfs_free_ag_extent.constprop.13+0x20f/0x980 [xfs]
> >
> > [ 3611.094012]  [<ffffffffc07be4cf>] ?
> > xfs_alloc_fix_freelist+0x4af/0x510
> > [xfs]
> >
> > [ 3611.094070]  [<ffffffffc07beccc>] xfs_free_extent+0x10c/0x170 [xfs]
> >
> > [ 3611.094120]  [<ffffffffc0827da5>]
> > xlog_recover_process_efi+0x175/0x1b0
> > [xfs]
> >
> > [ 3611.094180]  [<ffffffffc0829ed4>]
> > xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]
> >
> > [ 3611.094227]  [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0
> > [xfs]
> >
> > [ 3611.094271]  [<ffffffffc0821204>] xfs_log_mount_finish+0x34/0x50
> > [xfs]
> >
> > [ 3611.094317]  [<ffffffffc0817769>] xfs_mountfs+0x509/0x7b0 [xfs]
> >
> > [ 3611.094359]  [<ffffffffc081afca>] xfs_fs_fill_super+0x2ca/0x360
> > [xfs]
> >
> > [ 3611.094369]  [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0
> >
> > [ 3611.094406]  [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0xbe0 [xfs]
> >
> > [ 3611.094443]  [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x20 [xfs]
> >
> > [ 3611.094452]  [<ffffffff811ebb79>] mount_fs+0x39/0x1b0
> >
> > [ 3611.094460]  [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20
> >
> > [ 3611.094472]  [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120
> >
> > [ 3611.094479]  [<ffffffff8120a032>] do_mount+0x222/0xca0
> >
> > [ 3611.094486]  [<ffffffff8120adab>] SyS_mount+0x8b/0xe0
> >
> > [ 3611.094495]  [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b
> >
> > [ 3611.094512] XFS (dm-56): Failed to recover EFIs
> >
> > [ 3611.095813] XFS (dm-56): log mount finish failed
> >
> > -----------
> >
> >
> >
> > My initial analysis shows, exactly the issue is same as in (but
> > expired)
> >
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801
> >
> >
> >
> > filesystem getting corrupted is the first problem. But the mount hang
> > instead of failing is making it difficult to repair the filesystem.
> >
> >
> >
> > Can you please help progress on this issue ?
> >
> > I have the metadump of the filesystem, and can provide any details
> required.
> >
> >
> >
> > Thanks
> >
> > -kiru
> 
> > _______________________________________________
> > xfs mailing list
> > xfs@oss.sgi.com
> > http://oss.sgi.com/mailman/listinfo/xfs
> 
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