[dm-devel] dm-thin: commit metadata bug
Joe Thornber
thornber at redhat.com
Fri Aug 5 13:13:39 UTC 2011
On Fri, Aug 05, 2011 at 08:59:09AM -0400, Mikulas Patocka wrote:
> There is a bug in committing metadata --- you can't commit metadata if
> there is any copying or zeroing in flight. The problem is that in this
> case, the block you are copying to is already allocated, but it is not
> linked anywhere in the metadata. So it creates lost blocks in case of
> crash.
Yes, well known and documented. We take this hit, fsck will repair.
- Joe
More information about the dm-devel
mailing list