Date: Wed, 25 Dec 2002 19:22:46 -0800 (PST)
From: Josh Brooks <user@mail.econolodgetulsa.com>
To: Ro0tSiEgE <lkml@ro0tsiege.org>
cc: linux-kernel@vger.kernel.org
Subject: Re: CPU failures ... or something else ?
In-Reply-To: <200212252113.50757.lkml@ro0tsiege.org>
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Ok, understood - and that is why I thought it was significant that I am
running 2.4.1 on _identical_ hardware without problems - presumably if
that is the case then running 2.4.16 on the same hardware should be fine
as well (in terms of a buggy board) - therefore I suspect bad hardware.

Is this good reasoning ? (see post about dell hardware specifics, etc.)

On Wed, 25 Dec 2002, Ro0tSiEgE wrote:

> I never said that. A bad CPU would be my last guess. My first two are buggy
> board (use nomce) or bad addresses in your ram. try running Memtest86
> (http://www.memtest86.com) for a few minutes and see if you get any errors.
>
> On Wednesday 25 December 2002 21:04, you wrote:
> > So you are saying, that yes, it _is_ possible that my equipment is not
> > faulty in any way ?
> >
> > thanks!
> >
> > On Wed, 25 Dec 2002, Bubba wrote:
> > > try turning off the Machine Check Exception in the kernel as it is just
> > > buggy on some machines, not necessarily a bug in the kernel, or without
> > > recompiling, use the kernel param "nomce"
> > >
> > > On Wednesday 25 December 2002 19:53, Josh Brooks wrote:
> > > > Hello,
> > > >
> > > > I have a dual p3 866 running 2.4 kernel that is crashing once every few
> > > > days leaving this on the console:
> > > >
> > > >
> > > > Message from syslogd@localhost at Tue Dec 24 11:30:31 2002 ...
> > > > localhost kernel: CPU 1: Machine Check Exception: 0000000000000004
> > > >
> > > > Message from syslogd@localhost at Tue Dec 24 11:30:32 2002 ...
> > > > localhost kernel: Bank 4: b200000000040151
> > > >
> > > > Message from syslogd@localhost at Tue Dec 24 11:30:32 2002 ...
> > > > localhost kernel: Kernel panic: CPU context corrupt
> > > >
> > > >
> > > >
> > > > Word on the street is that this indicates hardware failure of some kind
> > > > (cpu, bus, or memory).  My main question is, is that very surely the
> > > > culprit, or is it also possible that all of the hardware is perfect and
> > > > that a bug in the kernel code or some outside influence (remote
> > > > exploit) is causing this crash ?
> > > >
> > > > Basically, I am ordering all new hardware to swap out, and I just want
> > > > to know if there is some remote possibility that my hardware is
> > > > actually just fine and this is some kind of software error ?
> > > >
> > > > ALSO, I have not been physically at the console when this has happened,
> > > > and have not tried this yet, but whatever that thing is where you press
> > > > ctrl-alt-printscreen and get to enter those post-crash commands - do
> > > > you think that would work in this situation, or does the above error
> > > > hard lock the system so you can't do those emergency measures ?
> > > >
> > > > thanks!
> > > >
> > > >
> > > > -
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> -------------------------------------------------------
>
>
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