Comment # 8 on bug 1160019 from Martin Wilck

Anthony, thanks. Sorry, I seem to have lost the xfs_metadump output :-(

xfs_scrub is available on Leap, but it doesn't start ("Kernel metadata
scrubbing facility is not available."). I guess it would need a kernel compiled
with different options.

Wrt xfs_repair, the FS had been automatically mounted during boot (that happens
for /home with systemd). I saw just ordinary journal replay during
mount/umount, nothing out of the ordinary, no errors logged. That made me think
that I might be facing a memory corruption problem.

What I did, meanwhile, was run memtest86 on the system, which passed 4x without
errors. Then I made a write/verify test on the entire LV using fio, which would
of course overwrite the XFS file system that had shown the issues before. That
test completed with no errors, too. 

Finally I created a new XFS on the same LV, copied back all the data (~50GB,
mostly photos and videos), no errors. Since then, I haven't seen the issue any
more. I guess I'll simply have to observe further.