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Date: Wed, 20 Oct 2004 15:16:59 -0700 (PDT)
From: Nik Azim Azam <nskyline_r35@yahoo.com>
To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk>
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cc: freebsd-current@freebsd.org
Subject: Re: number of CPUs and IPI panic
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sorry for not posting this information earlier.

i'm running on SCHED_4BSD, with PREEMPTION. the same
panic occours without PREEMPTION. the kernel is
generic except that i've removed some devices that i
dont need.

--- Gavin Atkinson <gavin.atkinson@ury.york.ac.uk>
wrote:

> On Wed, 20 Oct 2004, Nik Azim Azam wrote:
> 
> > hello list,
> >
> > i'm doing some testing on a 6 cpu pentium II
> overdrive
> > computer with 6-CURRENT. with 6 cpus, the system
> will
> > panic easily with moderate load (previous IPI is
> > stuck). i edited sys/i386/sys/param.h file and
> lowered
> > the MAXCPU to 4. now the system is running with 4
> cpus
> > and it survived a make buildworld + portupgrade at
> the
> > same time.
> >
> > is this a known problem? i can give more
> information
> > if anyone interested.
> 
> Are you using SCHED_ULE? (I believe it's the default
> in 6-CURRENT...)
> 
> If so, try with SCHED_4BSD. ULE has known problems
> at the moment.
> 
> Gavin
> 



		
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