Re: just a dump

Marcelo Tosatti
2009-05-25T18:47:45Z

On Sun, May 24, 2009 at 02:49:31PM +0300, Avi Kivity wrote:
> Marcelo Tosatti wrote:
>>> another one. This time the vm where booted sequentialy:
>>>
>>> [ 253.268993] kvm: 2907: cpu0 unimplemented perfctr wrmsr:
>>> 0xc0010003 data 0x0
>>> [ 475.036542] rmap_remove: ffff8800cdb913b0 10 0->BUG
>>>
>> ^^^
>>
>> So 0x10 is 1 bit different from 0x00, which would be the no present
>> entry for AMD.
>>
>> Usually an indication of hardware problems. Perhaps you want to try
>> the test Lucas mentioned.
>>
>
> It's actually the PCD bit, not that it affects your analysis. Strange
> that we see this pattern (1 bit differences on sptes) on both AMD and
> Intel. Very suspicious.

On Intel there was confirmation (through memtest86) that it was memory
failure. The pattern was:

0xff7ffffffffff001