Jacob Martin <[email protected]> writes:
> On second thought, the MTRR stuff may not have anything to do with this.
I think it has or the strange software memhole (what is that?)
>
>
> I think this is a bug in the preemptable kernel (I was warned, but didn't listen :).
You could verify that by disabling PREEMPT. Butactually it should
not be that bad.
>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.
-Andi
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