invalid opcode: 0000 in guest after migration

Hi,

on one of my clusters running qemu-kvm-1.6.1 on 3.10.22 x86_64 I noticed that after some time, migration of guest to other (same) node causes guest to go nuts...

I get invalid opcode: 0000 [#1] PREEMPT SMP error, with
long backtrace, ending with Fixing recursive fault but reboot is needed!

since log is quite long, I haven't attached it but it's available here:

http://nik.lbox.cz/download/kernel.log

Is this some known issue? Any chance upgrading to 1.7.1 will fix it? The system is centos6 with latest updates, qemu and kernel packages are self compiled.

CPU is Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz

If I should provide more debug info, please let me know.

thanks a lot in advance!

nik

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Ing. Nikola CIPRICH
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