[discuss] [PATCH] AMD Family 10h revision B2 Erratum 298 and L2 Eviction Bug Workaround

Chris grooveman at brokensolstice.com
Fri Dec 14 13:12:23 CET 2007

Yes, I memtested it for many hours, the memory is good.

Yes, often times I do get the flashing on the keyboard, when the locks hard.

The memory is good, the CPU's never exceed 36-37 degrees, the power
supply is good, I went through three motherboards... the problem is
definitely with the cpus.

Incidentally, since I have patched, the system has thus far proven
itself to be more stable (still testing).  It would have locked or hung
at least twice by now, and it hasn't yet.. knock on wood...

Andi Kleen wrote:
> On Fri, Dec 14, 2007 at 06:33:39AM -0500, Chris wrote:
>> No, I am not 100% sure.  All I know is that this is by far the most
>> problematic machine I have ever dealt with, and this patch is my only
>> alternative.  It consistently hangs under a load (compilation).  The
> Not always, but often when #298 occurs you should end up with machine
> check resulting in a panic.  This means if you have a PS/2 keyboard connected
> the keyboard lights will blink or if you can see the console
> (serial or not running X) there will be a machine check panic message.
> >From your symptoms it might be something else too. I assume you did
> run memtest86
> -Andi

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