Date: Tue, 25 May 2010 12:29:28 -0400 (EDT) From: "Matt W. Benjamin" <matt@linuxbox.com> To: Jan Henrik Sylvester <me@janh.de> Cc: afs-list freebsd <freebsd-afs@freebsd.org>, Benjamin Kaduk <kaduk@MIT.EDU> Subject: Re: AFS on FreeBSD 8? Message-ID: <2114226057.2439.1274804967983.JavaMail.root@thunderbeast.private.linuxbox.com> In-Reply-To: <4BFBFA49.8040900@janh.de>
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Hi,
If you have ddb and whatnot, it would be helpful to enter under the hang, show alllocks, and paste backtraces of interesting threads.
Matt
----- "Jan Henrik Sylvester" <me@janh.de> wrote:
> On 05/20/10 19:24, Benjamin Kaduk wrote:
> > On Thu, 20 May 2010, Jan Henrik Sylvester wrote:
> >
> >> I would have tried to narrow down the circumstances that cause
> >> deadlocks, if both of the machines in front of me were not crashing
> so
> >> often...
> >
> > I fixed a bug that was causing very quick deadlocks on my system,
> in
> > revision 42a280f50daf6e4dc65873150c4738aacf2c3a86 ( Wed, 19 May
> 2010
> > 10:39:35 +0000 (03:39 -0700)). Now the most common failure mode I
> am
> > seeing is kernel panics that seem to be due to some form of memory
> > corruption.
>
> I repeated my tests again with a build from half an hour ago, once on
>
> SMP, once with kern.smp.disabled=1. Nothing changed: Copying a 2162
> bytes file works fine, copying a 256004096 bytes file locks afs.
> cmdebug
> does not return anything.
>
> Trying to reboot, I get "init: some processes would not die; ps axl
> advised". After "All buffers synced", afs got a message for me:
>
> afs: WARM shutting down of: CB... afs... BkG... CTrunc... AFSDB...
> RxEvent... UnmaskRxkSignals... RxListener... osi_StopListener:
> rxk.ListenerPid ffffff0071a9c000 {2nd try: ffffff005cf3460}
> WARNING: not all blocks freed: large 0 small 1
> All allocated tables... done
>
> Nothing new, unfortunately.
>
> I could try different file sizes... maybe around the cache size --
> would
> that be interesting? (I have "/afs:/var/openafs/cache:100000" in
> /usr/local/etc/openafs/cacheinfo. That is in KB, isn't it?)
>
> Cheers,
> Jan Henrik
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--
Matt Benjamin
The Linux Box
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