Re: [BUG] 2.6.23.1 host freezes when running kvm

Avi Kivity
2007-10-21T11:22:19Z

Bart Trojanowski wrote:
> * Bart Trojanowski <bart-LIbhotJ4rFdeoWH0uzbU5w@public.gmane.org> [071019 20:03]:
>
>> * Bart Trojanowski <bart-LIbhotJ4rFdeoWH0uzbU5w@public.gmane.org> [071019 17:00]:
>> <snip>
>>
>>> Once the system is booted, I attached using vnc, then I ssh in and ran
>>> 'svn update'... and the host machine froze.
>>>
>>> The last messages I on my serial console are:
>>>
>>> kvm: unhandled rdmsr: 0x417
>>> kvm: unhandled rdmsr: 0xc0000400
>>>
>> <snip>
>>
>>> I noticed that linus merged a bunch of KVM changes last week. I will
>>> try those out next.
>>>
>> It looks like Linus' tree has the fix already.
>>
>
> I spoke too soon. The latest from Linus' tree also freezes... but it
> took overnight to get there. There was no particular load on it.
>
> This system was previously running 2.6.22.y w/o problems with a similar
> kvm pattern.
>
> This time it froze w/o showing any kvm rdmsr messages. And while it
> froze sometime over night, I cannot be sure when. Here is the SysRq's
> "showPc" output:
>

Does 2.6.23 hang immediately? If so, these may be two separate problems
and it's worth bisecting to find out what's the fix in 2.6.24-rc.

Of course we'll have to address the later hang as well.

--
error compiling committee.c: too many arguments to function