Re: memtest86 on the opteron

From: Andi Kleen (
Date: Sun Jun 08 2003 - 01:27:46 EST

Bryan O'Sullivan <> writes:

> On Sat, 2003-06-07 at 14:43, Pavel Machek wrote:
> > Well, as opteron is i386-compatible, you should be able to simply use
> > i386 memtest...
> It doesn't work. Crashes and reboots the system shortly after it
> starts. The serial console support appears to have bit-rotted, too, so
> I've not been able to capture an output screen to diagnose the problem.

The problem is the CPUID handling in memtest86. It does not expect
the 15 model number on AMD systems. Someone did a patch for it, but
I don't remember where they put it. Anyways should be easy to fix again
given the source.

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