=C2=A0

Hi A= ll,

=C2=A0

Sending it on= ce again, in case we all missed this earlier mail,

=C2=A0

Any help is much appreciated.

<= p class=3D"MsoNormal">This bug hangs the moun= t with the following stack. Similar to (https://bugs.launchpad.net/ubuntu/+source/linux/= +bug/1382801)

=C2=A0

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>] x= fs_log_unmount+0x1a/0x70 [xfs]

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

[<ffffff= ffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]

[<ffffffff811eb220>] mount_bd= ev+0x1b0/0x1f0

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

[<ffffffff811ebb79>] m= ount_fs+0x39/0x1b0

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

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

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

[<ffffffff817179cd>] sys= tem_call_fastpath+0x16/0x1b

[<ffffffffffffffff>] 0xffffffffffffffff

=C2=A0

Is this a known issue ? otherwise h= ow to avoid the hang, a mount failure will help to force-repair the filesys= tem and remount.

=C2=A0

= Thanks

-kiru=

=C2=A0

From:<= span style=3D"font-size:10.0pt;font-family:"Tahoma","sans-se= rif""> Kirubakaran Kaliannan [mailto:kirubak@zadarastorage.com]
Sent: Wednesday, June= 29, 2016 11:25 AM
To: 'xf= s@oss.sgi.com'
Subject: xfs mount hung on a corrupted fil= esystem

=C2=A0

Hi XFS-developers,

=C2=A0

We are running XFS on ubuntu kernel-3.18.19

=C2=A0

On a drive failure = connected to my server, the file-system experienced the corruption. Attache= d the corruption.out file which contains the information regarding the corr= uption.

=C2=A0

<= span style=3D"font-size:10.0pt;font-family:"Comic Sans MS";color:= black">Later when the file-system is unmounted and mounted back, the mount = hung with the following stack (attached the dmesg when mount is run)=

=C2=A0

-------= -----------

= [ 3611.093909]=C2=A0 [<ffffffff81710c85>] dump_stack+0x4e/0x7= 1

[ = 3611.093943]=C2=A0 [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [x= fs]

= [ 3611.093964]=C2=A0 [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x1= 70 [xfs]

[ 3611.093984]=C2=A0 [<ffffffffc07bd45f>] xfs_free_ag_extent.con= stprop.13+0x20f/0x980 [xfs]

[ 3611.094012]=C2=A0 [<ffffffffc07be4cf>] ? x= fs_alloc_fix_freelist+0x4af/0x510 [xfs]

[ 3611.094070]=C2=A0 [<ffffffffc07be= ccc>] xfs_free_extent+0x10c/0x170 [xfs]

[ 3611.094120]=C2=A0 [<ffffffffc0= 827da5>] xlog_recover_process_efi+0x175/0x1b0 [xfs]

[ 3611.094180]=C2=A0 [= <ffffffffc0829ed4>] xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]=

[ 3= 611.094227]=C2=A0 [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0 = [xfs]

= [ 3611.094317]=C2=A0 [<ffffffffc0817769>] xfs_mountfs+0x509/0= x7b0 [xfs]

<= span style=3D"font-size:10.0pt;font-family:"Comic Sans MS";color:= black">[ 3611.094359]=C2=A0 [<ffffffffc081afca>] xfs_fs_fill_super+0x= 2ca/0x360 [xfs]

[ 3611.094369]=C2=A0 [<ffffffff811eb220>] mount_bdev+0x1b= 0/0x1f0

[ 3611.094406]=C2=A0 [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0= xbe0 [xfs]

<= span style=3D"font-size:10.0pt;font-family:"Comic Sans MS";color:= black">[ 3611.094443]=C2=A0 [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x= 20 [xfs]

[ 3611.094452]=C2=A0 [<ffffffff811ebb79>] mount_fs+0x39/0x1b0

[ 3611= .094460]=C2=A0 [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20=

[ 3611.094= 472]=C2=A0 [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120

<= p class=3D"MsoNormal" style=3D"text-autospace:none">[ 3611.094479]= =C2=A0 [<ffffffff8120a032>] do_mount+0x222/0xca0

[ 3611.094486]=C2=A0 [= <ffffffff8120adab>] SyS_mount+0x8b/0xe0

[ 3611.094495]=C2=A0 [<fffffff= f817179cd>] system_call_fastpath+0x16/0x1b

[ 3611.094512] XFS (dm-56): Faile= d to recover EFIs

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

-----------

=C2= =A0

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

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

=C2=A0

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

=C2=A0

Can you please help progress on this issue ?

I have th= e metadump of the filesystem, and can provide any details required.<= /p>

=C2=A0

Thanks

-kiru