number of CPUs and IPI panic

[Stephan Uphoff]

Can you try the attached patch?
( Hope it still applies since it is a few weeks old)

If this does not work I have a few more questions next week.

	Stephan

On Wed, 2004-10-20 at 18:16, Nik Azim Azam wrote:
> 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 at 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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