From owner-freebsd-smp  Wed Aug 23  4:58:53 2000
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Subject: Re: SMP problems (was: How can I obtain -stable for previous date)
In-Reply-To: <39A3B005.974255D2@datakultur.com> from Stefan Lindgren at "Aug 23, 2000  1: 5:41 pm"
To: stefan@jaco.datakultur.com (Stefan Lindgren)
Date: Wed, 23 Aug 2000 18:58:34 +0700 (NSS)
Cc: freebsd-smp@freebsd.org
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> > > > But after  Aug 20, the system became unstable ;(
> > > > It locks on hard loading (hard HDD usage),
> > > > like a make release or even make buildworld ;(
> > > > No panic, no crashdump, nothing, full lock...
> > > > Just many HDD problems after hard reboot ;(
> > >
> > > or something to get the code from midnight on the 20th August.  But
> > > ideally you should try to find what is causing the problem, of course.
> >
> > It seems to me, the problem is in SMP code, because
> > in 1 CPU configuration with the same kernel all works fine.
> > And when 2 CPU is installed, simple make -j4 buildworld
> > lock the system after little period of time...
> > Unfortunatelly I cant find what changes was made in smp stuff...
> 
> I had the same "error pattern". It worked fine in singel, but dual it
> started to behave wierd.
> I placed an *enormous* fan in the box and it became rock solid!(tons of make
> world on dual cfg)
> 
> My machine simply got to hot so when I checked it with memory tester, the
> memory reported errors.
> 
> Now it doesnt!

I have Rack Mount Case with 3 big fans on it and 2 small fan on every HDD
All hardware is cool....

	WBR SA


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