Hi,

I have a debian box with libvirtd and kvm installed and 2 VMs. One of the VMs is crashing kvm with a segmentation fault every couple of days and i have no idea how to diagnose the problem. The other one running ubuntu is working perfectly.
Here are the log entries for every crash:

2010-03-31T14:49:03.330349+03:00 judge kernel: [26182562.299640] kvm[22476]: segfault at 7fff4afe8ab0 ip 4902c0 sp 7fff4ae09e60 error 4 in kvm[400000+19b000]
2010-03-31T21:48:45.750995+03:00 judge kernel: [26235333.578298] kvm[22730] general protection ip:4902a0 sp:7fff8cd42a40 error:0 in kvm[400000+19b000]
2010-04-06T16:35:31.544772+03:00 judge kernel: [27340575.327728] kvm[22968]: segfault at 7fffb2a8c910 ip 4902c0 sp 7fffb2803ab0 error 4 in kvm[400000+19b000]
2010-04-11T18:10:44.058139+03:00 judge kernel: [28314952.346427] kvm[2573] general protection ip:4902a0 sp:7fff5d82b440 error:0 in kvm[400000+19b000]
2010-04-12T11:37:51.114464+03:00 judge kernel: [28460286.484759] kvm[23533]: segfault at 7fffec327918 ip 4902c0 sp 7fffebe20b60 error 4 in kvm[400000+19b000]
2010-04-15T22:50:07.280110+03:00 judge kernel: [29110609.759291] kvm[24433]: segfault at 7fff2236af08 ip 4902c0 sp 7fff1c4e0160 error 4 in kvm[400000+19b000]
2010-04-22T14:32:28.663373+03:00 judge kernel: [929122.332582] kvm[4296]: segfault at cdbc ip 4902a0 sp 7fff084ef7e0 error 4 in kvm[400000+19b000]
2010-04-22T19:27:19.812412+03:00 judge kernel: [963319.704700] kvm[13709] general protection ip:4902a0 sp:7fffbbc57840 error:0 in kvm[400000+19b000]
2010-04-28T22:37:46.436014+03:00 judge kernel: [2035622.366764] kvm_handle_exit: unexpected, valid vectoring info and exit reason is 0x31
2010-05-02T00:37:51.351994+03:00 judge kernel: [2568610.917634] kvm[6530] general protection ip:4902a0 sp:7fff2a80c390 error:0 in kvm[400000+19b000]
2010-05-09T13:01:37.225754+03:00 judge kernel: [3866895.431107] kvm[681]: segfault at 7fffde215058 ip 4902c0 sp 7fffdddf77e0 error 4 in kvm[400000+19b000]
2010-05-11T14:05:30.210202+03:00 judge kernel: [4219084.906496] kvm[14602]: segfault at 7fff8fc4ebd0 ip 4902c0 sp 7fff8f891da0 error 4 in kvm[400000+19b000]

The vm has debian lenny and is converted from a virtualbox machine. KVM version is 72+dfsg-5~lenny5.
I will provide more information if needed i'm just not sure what is relevant.

I will greatly appreciate any help!

Thanks