Re: XFS filesystem corruption on the arm(el) architecture

[Martin Michlmayr <tbm@cyrius.com>]

* Dave Chinner <david@fromorbit.com> [2008-10-19 12:48]:
> That's the log replay indicating that there's a bad transaction
> header in the log. Very strange - it shoul dbe a clean log. What
> does xfs_logprint -t /dev/sda5 tell you about the transactions
> in the log?

mdebian:~# mkfs.xfs -f /dev/sda5
meta-data=/dev/sda5              isize=256    agcount=4, agsize=94380
blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=377519,
imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks,
lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0
debian:~# mount -t xfs /dev/sda5 /mnt
debian:~# cp /usr/bin/* /mnt/
debian:~# umount /mnt
debian:~# mount -t xfs /dev/sda5 /mnt
mount: /dev/sda5: can't read superblock
debian:~# xfs_logprint -t /dev/sda5
xfs_logprint:
    data device: 0x805
    log device: 0x805 daddr: 1510112 length: 20480

XFS: Log inconsistent (didn't find previous header)
XFS: empty log check failed
xfs_logprint: failed to find head and tail, error: 5
debian:~#

-- 
Martin Michlmayr
http://www.cyrius.com/