On Montag, 8. August 2011 Hanne Munkholm wrote:

On Mon, 8 Aug 2011, Michael Monnerie wrote:

quoted

Yes, mount -L/umount once to replay the log, when you are sure the
block device works correctly again.

Thank you very much for your reply.

I don't see an -L option to the mount command meaning "replay
log", I think if I was able to mount it, it would replay the log
by itself? However, I cannot mount it.

Sorry, mixing up with xfs_repair -L. If mount doesn't work, then try to 
xfs_repair -L.

Trying with a newer kernel is possible but some trouble, is it
likely to help?

Could be. Dave Chinner knows more. I'd say if a newer kernel is 
problematic, try xfs_repair -L first, and keep the output for review. As 
you have a backup anyway, you're on the safe side. I've needed 
xfs_repair often and never had a problem because of it. YMMV though.
 

If I run an xfs_repair, will it get me anywhere even if it
segfaults at the same point?

Yes, sometimes running it several times solves all problems.
 

Do you recommend that I run an xfs_repair with or without -L, or
should I definetly try a new kernel first?

If you can quickly download a "live" CD with an actual kernel, do that 
and try that. If that is problematic, e.g. you don't have access to the 
server, just run xfs_repair -L.

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