Subject: Re: kern/32162: [netbsd-3.0] kernel dead-lock in MP system
To: Andreas Wrede <firstname.lastname@example.org>
From: Manuel Bouyer <email@example.com>
Date: 11/27/2005 00:08:19
On Sat, Nov 26, 2005 at 05:18:40PM -0500, Andreas Wrede wrote:
> On Nov 26, 2005, at 15:29 , Manuel Bouyer wrote:
> >On Fri, Nov 25, 2005 at 03:13:00AM +0000, Andreas Wrede wrote:
> >>System: NetBSD whome.planix.com 3.0_RC3 NetBSD 3.0_RC3
> >>(PLANIX.MPACPI) #0: Thu Nov 24 20:57:09 EST 2005
> >>obj.i386/PLANIX.MPACPI i386
> >>Architecture: i386
> >>Machine: i386
> >> Over the last week I have experienced 3 kernel dead-locks on a
> >>NetBSD 3.0_RC1/2/3 system.
> >>The motherboard is a Tylan K8S Pro S2882G3NR with 2 AMD Opteron
> >>244 CPUs installed. The kernel
> >>is differs from GENERIC.MPACPI in the value for some SYSVSEM
> >>variables, maxusers and some
> >>other variables.
> >Can you try a kernel with DIAGNOSTIC, DEBUG and LOCKDEBUG ?
> Right now, I am running with LOCKDEBUG. I will add DIAGNOSTIC and DEBUG.
Yes, if you have the problem I'm thinking about, it will only be
detected if you have DIAGNOSTIC. But LOCKDEBUG and DEBUG can't hurt,
maybe these will catch something else.
> Not knowing much about kernel debugging, and since creating a core
> dump is not possible,
Why ? Have you tried reboot(0x104) ?
> what commands should I run the next time the
> dead-lock occurs?
I can't see at anything more than what you have provided for now ...
Manuel Bouyer <firstname.lastname@example.org>
NetBSD: 26 ans d'experience feront toujours la difference