Messages in this thread | | | Date | Wed, 23 Mar 2011 20:48:48 +0100 | Subject | Re: Machine Check Exception and cpufreq | From | Giorgio <> |
| |
2011/3/23 Borislav Petkov <bp@amd64.org>: > On Wed, Mar 23, 2011 at 03:02:01PM -0400, Giorgio wrote: >> 2011/3/22 Giorgio <mywing81@gmail.com>: >> > 2011/3/22 Borislav Petkov <bp@amd64.org>: >> >> this is very interesting. Question: is it possible to retest with >> >> a newer kernel from upstream (say 2.6.38) to see whether the issue >> >> persists? I'd like to rule out the possibility that powernow-k8 is >> >> not causing any trouble which has been fixed in newer kernels in the >> >> meantime. >> >> >> >> Thanks. >> > >> > Hello Borislav, >> > >> > thanks for your quick reply. Yes, I only tested it with the stock >> > 2.6.32 kernel shipped with Ubuntu 10.04, but I will download the >> > latest stable kernel from kernel.org (2.6.38) and test again. I'll >> > come back to you in the following days. Regards, >> >> Borislav, >> >> I tested again with 2.6.38 kernel: the system was stressed for several >> hours with various activities (compiling, copying data back and forth >> from two hard drives, encoding/decoding video streams, etc) but I was >> not able to reproduce the problem, so I guess it has been fixed. >> If you're interested here's the info I collected with 2.6.38: >> >> http://mywing.altervista.org/tmp/info-2.6.38.log > > Great. It's either fixed or latest powernow-k8 changes timings so as not > to trigger it anymore, because your issue looks like the chipset could > by doing something fishy with CRC during Pstate transitions. > > If it happens again, try whether upgrading your BIOS solves it (although > I'm pretty sceptical about getting newer BIOS for such an old board :-) ).
I am fairly sure I am using the latest BIOS available, and yes, I admit this is quite an old board! :) Thank you again for looking at my report.
Giorgio Vazzana
| |