Here is something else to look at: (perhaps not related -- I'm new to this thread) Sun Document ID 57680 lists an issue with their dual opteron box running pci-x cards in 133Mhz slots. It also links to a bios update and an AMD errata page that lists other issues. http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/2631.... We have a cluster of dual opterons. A few of these have had kernel panic issues, but this is usually fixed with a replacement cpu or board. Most of our problems appear to be hardware related and not kernel. eric Andi Kleen wrote:
On Thu, Dec 16, 2004 at 11:27:45AM +0100, Rainer Koenig wrote:
Hi Andreas,
Andreas Wahlert <Andreas.Wahlert@gmx.de> writes:
I'm in a serious discussion with the FSC Celsius man in Augsburg. perhaps there are any results today or monday.
Can you give me more contact info about that Celsius man in Augsburg? Per definition it should be me... but I just read about this because your problem is also showing up at other customers of our CELSIUS V810 and that other customer pointed us to this thread. Sorry that this problem didn't get my attention before.
And yes, I can perfectly reproduce it here on my V810 as well.
It probably depends on the amount of memory installed and the BIOS version. Basically the crash happens when the kernel tries to duplicate MTRR setup done by the BIOS to the other CPU, so likely there is some issue in the original MTRR setup.
I haven't heard a report for it from the V810 at suse, perhaps it doesn't show it.
There is a bug open for the issue, but I haven't had time to look at it in detail yet.
-Andi