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Re: [linux-lvm] blkid_wiping breaks snapshots

Dne 8.2.2014 00:55, Christian Hesse napsal(a):
Christian Hesse <list eworm de> on Sat, 2014/02/08 00:36:
Hello everybody,

I think I nailed it down with git bisect. My first bad commit is:

configure: enable blkid_wiping by default if the blkid library is present

Looks like this wipes data that is still needed... Building a package with
'--disable-blkid_wipe' now to verify on another system.

Uh, this only helps part of...

I changed my test setup and used writable snapshots. After that I got:

WARNING: DM_snapshot_cow signature detected on /dev/cvg/snap-home at
offset 0. Wipe it? [y/n]

(see https://bbs.archlinux.org/viewtopic.php?id=176504 for another report)

Looks like disabling blkid_wiping fixes this. My snapshot corruption still
occurs though. :-/
Bad thing about it is that the corruption does not occur reliable when doing
simple tests in 'git bisect'... Out of ideas for now - Will go to bed now.

Now this was helpful, I guess I think what is going on.


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