Snapshot corruption on 6.1/amd64

Kris Kennaway kris at obsecurity.org
Wed Nov 22 17:12:13 UTC 2006


On Wed, Nov 22, 2006 at 01:01:03PM +0100, Lapo Luchini wrote:
> Eric Anderson wrote:
> >>   Panic String: snapacct_ufs2: bad block
> >> I have the dump file, for the latest problem.
> > Maybe you have a bad disk?  You might try swapping the drive out. (just
> > a wild guess here)
> 
> Does "snapacct_ufs2: bad block" really mean "bad" as in "unreadable"?
> RTFS I tought it was just a "logic" inconsistency.
> 
> Anyway, after having de-activated all snapshots for weeks (and deleted
> all the old ones) I got this panic again.
> 
> I'm currently doing a "dd if=/dev/ad0 of=/dev/null bs=1m" as suggested
> by dd(1) in order to be sure it is not an hardwareissue.
> 
> And if all is well I will "dd if=/dev/ad0 of=/dev/ad0 bs=1m" too.
> 
> And then recompile with latest -STABLE just to be sure to have the
> latest amd64-based snapshot fixes.
> 
> Hope this is the last time I see that panic... -_-

I've lost context, how are you reproducing the panic?

Kris
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