xfs_check and xfs_repair do nothing. The file system seems healthy but a lot of the files are showing the wrong size, as well every few minutes 32MBs (exactly 32768 Kbytes) of data seems to just disappear from the drive (RAID1, write cache disabled).
Running Debian Squeeze / SID (kernel 2.6.38-11-server)
Here's my xfs_info on this device:
# xfs_info /dev/sdb1
meta-data=/dev/sdb1 isize=256 agcount=4, agsize=73187200 blks
= sectsz=512 attr=2
data = bsize=4096 blocks=292748800, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal bsize=4096 blocks=142943, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
