Messages in this thread | | | From | Jacob Martin <> | Subject | Re: PROBLEM: OOPSes in PREEMPT SMP for AMD Opteron Dual-Core with Memhole Mapping (non tainted kernel) | Date | Sat, 11 Jun 2005 14:31:52 +0000 |
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> I think it has or the strange software memhole (what is that?) > From your oopses i more suspect it is hardware actually: > > Jun 7 14:11:27 optimator Unable to handle kernel paging request at > > 00000000000025b0 RIP: Jun 7 14:11:27 optimator > > <ffffffff8016797a>{pte_alloc_map+170} > > It crashes on first accessing newly allocated memory for page tables.
> Most likely something is wrong with your memory or memory map. > Maybe it is related to your "discrete mtrr mapping" or your "software > memhole" whatever they are? I would suggest to try without these.
There are three options for Memhole mapping in my BIOS: Disabled, Hardware, and Software. I really don't know why there would be a "software" option, or what it does. Also, I'm not sure what the difference between continuous and discrete MTRR mapping is. The BIOS says it has to do with some linux kernels, but I haven't found any reliable information about it.
I disabled Memhole mapping and PREEMPT entirely. I'll try to stress test out some more oopses. I'll also memtest86 all of the memory.
Thanks for the help, Jake Martin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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