fsck_ufs locked in snaplk

[Kris Kennaway]

On Tue, Apr 25, 2006 at 08:09:32AM -0500, Chris Dillon wrote:
> Quoting Dmitry Morozovsky <marck at rinet.ru>:
> 
> >On Mon, 24 Apr 2006, Kris Kennaway wrote:
> >
> >KK> Also you should add DEBUG_LOCKS and DEBUG_VFS_LOCKS on the off chance
> >KK> they catch the problem.
> >
> >I got one thought about the source of these hangs/crashes: this   
> >machine is the
> >only one with actively used quotas. I'll test the more thoroughly   
> >this evening.
> 
> I had problems with snapshots and hangs in 5.x.  For that, a daily  
> reboot would keep the problems at bay.  I upgraded to 6.0 and the  
> problems completely disappeared.  I kept 6.0-STABLE running for weeks.  
>  Somewhere along the line, as 6.1 approached, similar problems  
> re-appeared, but not exactly the same as what I had in 5.x.  Now  
> instead of a complete system hang, individual processes will hang  
> while attempting to access a certain filesystem.  I'm running  
> 6.1-PRERELEASE from April 2 and for some reason since this weekend it  
> has happened more often, but I'm not sure why since I haven't made any  
> system changes since April 2.

OK, I wish you and others had responded to my call for testing a month
or more ago :) All (both) of the responses indicated that the quota
problems had been fixed following changes made then.  At this point it
may be too late for 6.x, but we'll see.

Kris
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