Files with non-ASCII names inaccessible after xfs_repair

[Zachary Kotlarek]

On Jan 12, 2014, at 10:47 AM, Stan Hoeppner <stan at hardwarefreak.com> wrote:

> http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F
> 
> If this is due to a bug it may have already been fixed.  Note the first
> two things asked for.


Thanks for the pointer.

My kernels a bit old, but xfsprogs is shiny and new:
Linux vera 2.6.39.2 #1 SMP Fri Sep 30 23:55:41 PDT 2011 x86_64 x86_64 x86_64 GNU/Linux
xfs_repair version 3.1.11

2x4 core CPUs
8 GB RAM, mostly free (more than 6 GB cached)

Related mount:
/dev/lvmsas/tv /mnt/media/TV xfs rw,nosuid,nodev,noexec,relatime,attr2,delaylog,inode64,sunit=1024,swidth=4096,noquota 0 0

Underlying partition:
 254       31 16252928000 dm-31

Which is a no-frills LVM2 volume allocation over mdadm raid-6.

meta-data=/dev/lvmsas/tv         isize=256    agcount=33, agsize=126975872 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=4063232000, imaxpct=5
         =                       sunit=128    swidth=512 blks
naming   =version 2              bsize=4096   ascii-ci=1
log      =internal               bsize=4096   blocks=521728, version=2
         =                       sectsz=512   sunit=8 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

Attempts to access the now-busted files/directories with accents in their paths result in a kernel log like:
Jan 11 02:05:39 vera XFS (dm-31): I/O error occurred: meta-data dev dm-31 block 0x3c8ff73e0       ("xfs_trans_read_buf") error 11 buf count 4096

Original failure never hit the persistent log so I don’t have that; the system would not shutdown cleanly and I kill it after several errors like:
	Filesystem "dm-31": xfs_log_force: error 5 returned.
It claimed to be unmounted at that point (it didn’t show up in /proc/mounts) but the related [xfsbufd/dm-31] process was still running and could not be killed.

	Zach

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