5.1-R-p2 crashes on SMP with AMI RAID and Intel 1000/Pro

[Petri Helenius]

One thing that might give a hint of a PS issue is to have the system idle,
with machdep.cpu_idle_hlt=1 and run mbmon or healthd or similar, 
look at the voltages.

Then do machdep.cpu_idle_hlt=0 and look at the voltages again. Add disk
activity if you have enough disks to make a difference.

If your voltages change, you have a problem. Many power supplies do
not live up to their ratings.

Pete


> The Supermicro dual board I just purchased needed 400W minimum. The 300W
> supply I ran as a test cut out under load, and it's now running completely
> stable with a 500W supply.
> 
> Lawrence Farr
> EPC Direct Limited 
> 
> > -----Original Message-----
> > From: owner-freebsd-stable at freebsd.org 
> > [mailto:owner-freebsd-stable at freebsd.org] On Behalf Of Hartmann, O.
> > Sent: 13 August 2003 10:56
> > To: Simon L. Nielsen
> > Cc: freebsd-stable at FreeBSD.org; freebsd-smp at FreeBSD.org
> > Subject: Re: 5.1-R-p2 crashes on SMP with AMI RAID and Intel 1000/Pro
> > 
> > 
> > On Wed, 13 Aug 2003, Simon L. Nielsen wrote:
> > 
> > :>On 2003.08.13 10:59:19 +0200, Hartmann, O. wrote:
> > :>
> > :>> It seems to me a never ending story. We run a box with a 
> > TYAN Thunder
> > :>> 2500 Dual SMP mainboard, 2GB ECC Tyan certified memory, 
> > AMI Enterprise
> > :>> 1600 RAID adapter and additional Intel 1000/Pro server 
> > type (64 bit)
> > :>> GBit LAN NIC. With FreeBSD 4.8 this was stable, but to achive this
> > :>> state was really hard! It is a story similar to that what 
> > happend when
> > :>> we changed towards FreeBSD 5.1-RELEASE-p2 on this machine.
> > :>
> > :>Have you tried with a more powerful PSU?  I have had 
> > problems with Tyan
> > :>boards that were crashing very often, and it turned out to be a
> > :>bad/insufficient PSU.  It worked sometimes, and sometimes it just
> > :>crashed.
> > :>
> > :>Just a wild guess, but might be worth checking out.
> > :>
> > :>--
> > :>Simon L. Nielsen
> > :>FreeBSD Documentation Team
> > :>
> > 
> > Dear Simon.
> > 
> > Yes, we did. At this moment we have a redundant 300W PSU and it
> > worked fine.
> > 
> > I think if the PSU causes problems, typical hardware errors 
> > or spontanous
> > reboots might be a indicator, but not the problem of freezing kernel.
> > In earlier times, when we ordered the TYAN board and its 
> > housing, we were
> > made aware of this problem by some FreeBSD users which had 
> > problems with
> > low power PSU.
> > 
> > Thanks,
> > Oliver
> > --
> > MfG
> > O. Hartmann
> > 
> > ohartman at mail.physik.uni-mainz.de
> > ------------------------------------------------------------------
> > Systemadministration des Institutes fuer Physik der Atmosphaere (IPA)
> > ------------------------------------------------------------------
> > Johannes Gutenberg Universitaet Mainz
> > Becherweg 21
> > 55099 Mainz
> > 
> > Tel: +496131/3924662 (Maschinenraum)
> > Tel: +496131/3924144 (Buero)
> > FAX: +496131/3923532
> > _______________________________________________
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> > 
> 
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