UFS2 Snapshots in 6.1-Beta4 - Confirmed Problems

Kent Stewart kstewart at owt.com
Thu Mar 23 18:42:44 UTC 2006

On Thursday 23 March 2006 10:34, Kris Kennaway wrote:
> On Tue, Mar 21, 2006 at 01:36:44AM -0800, John Kozubik wrote:
> > First, I have confirmed that a filesystem with multiple snapshots
> > that undergoes multiple, rapid deletions of files, will cause the
> > system to hang.  I have witnessed this before, but had not
> > confirmed it or documented it in a PR.  Now that I have confirmed
> > this behavior, I have documented it in: kern/94769
> I ran a (completion of) your script in a loop for about 24 hours and
> it didn't deadlock.  This may be because there was a second set of
> fixes that was merged in to 6.x a day or two ago.  Are you able to
> confirm whether they indeed fixed this problem?
> > Second, kern/92292 is still a problem.  I have reproduced this
> > error in 6.1-BETA4 (and have seen it happening since 5.1).  The
> > (small) difference is that the cp process seems to stick in the
> > flswai state instead of biowr.
> I'll test this one next.

There is also a problem if you try to boot the latest 6.1-beta kernel 
from XP using an old boot1. It just hangs and you don't even see the 
"-" symbol on the console. You can boot from XP after you start using 
the new boot1.


Kent Stewart
Richland, WA

http://www.soyandina.com/ "I am Andean project".

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