Red Hat Bugzilla – Bug 473041
Frequent BUG()s in scheduler(?) on SMP x86_64 starting with 2.6.27
Last modified: 2009-12-18 01:56:42 EST
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:126.96.36.199) Gecko/2008111217 Fedora/3.0.4-1.fc10 Firefox/3.0.4
Since I upgraded to 2.6.27 in Rawhide and continuing through the GA release of Fedora 10, I have had essentially daily kernel oopses on my x86_64 Asus laptop. Typically they prevent new processes from being started at all, so kerneloops cannot run. High CPU load causes the oops to occur more frequently, as does running processes on both cores. Today I managed to capture the result from one. Please find the oops attached.
Created attachment 324697 [details]
Log of the oops, both of the after-the-fact report and of the inital dmesg.
Oh, I should mention that I have tested my memory, and I have seen it occur without the nvidia module loaded. I also added "mem=3G" to the boot flags in order to work around 472495, and the oopses still persist.
> Oops: 000b  SMP
Protection violation caused by reserved bits being set in a page directory.
> I have seen it occur without the nvidia module loaded.
Was the nvidia module loaded and then unloaded, or was it never loaded since booting up?
I have seen it happen in rawhide when nvidia was never loaded since booting. It may also be related to suspend/resume.
However, I've only been using nvidia since F10 GA, so it's possible that the oopses were fixed before GA and now the bugs are due to nvidia.
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