Curious failure of ZFS snapshots

Pawel Jakub Dawidek pjd at FreeBSD.org
Sat Nov 29 16:01:04 PST 2008


On Sat, Nov 29, 2008 at 01:01:18PM +0000, Pete French wrote:
> > Is there a way for me to reproduce that?
> 
> I am not sure how to reproduce it, as I am unclear as to what
> causes is. I have two machines making regular snapshots, one of which
> ends up in this state, and one which doesnt. The only difference is
> that the one which goes wwrong is actually trying to access the snapshots,
> whereas the other is a backup machine where they just sit there.
> 
> What I can try and do is to setup a small system to try and reproduce the
> bug on a small file backed zfs system, aandd then maybe email you the
> failed image if I can get it to fail. Would that be of any use ?
> The current failed image is about 50GB, so I dont have an easy way to
> send you that. Is an image of a filesystem with the problem actualll of
> any use to you anywway ?

It's not file system on-disk structure fault, as far as I understand,
because reboot fixes it. I belive it's how you access the snapshots.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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