From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: Windows7 crashes inside the VM when starting a certain program
Date: Sun, 31 Jul 2011 11:16:00 +0300
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Cc: Gleb Natapov <gleb@redhat.com>, kvm@vger.kernel.org
To: =?UTF-8?B?QW5kcsOpIFdlaWRlbWFubg==?= <Andre.Weidemann@web.de>
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On 07/30/2011 03:29 PM, Andr=C3=A9 Weidemann wrote:
>> Looks like it tries to read MSR_LASTBRANCH_TOS MSR which kvm does no=
t
>> support. Do you see something interesting in dmesg? I wonder how
>> availability of the MSR should be checked.
>
>
> You are right about the MSR. The log file from the time of occurrence=
=20
> shows the following:
>
> Jul  4 18:55:12 server kernel: [ 1528.618647] kvm: 3123: cpu1=20
> kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop
> Jul  4 18:55:12 server kernel: [ 1528.619444] kvm: 3123: cpu1=20
> unhandled rdmsr: 0x1c9
>

You can try

$ rmmod kvm-intel kvm
$ modprobe kvm ignore_msrs=3D1
$ modprobe kvm-intel

(or kvm-amd, as the case may be)

This will work around the issue, but the application may not function=20
correctly.

--=20
error compiling committee.c: too many arguments to function