Anthony Liguori wrote: > Avi Kivity wrote: >> Avi Kivity wrote: >>>> >>>> I'll have to try and setup a 64 bit system. I cannot reproduce on >>>> my 32bit system with your test program. >>> >>> It may be related to 64-bit (as that uses sse for floating point), >>> or to the fact that I use ssh on a remote host, which causes more >>> context switches. I'll try to reproduce on 32 bits with my setup. >>> >> >> It doesn't reproduce on a 32-bit host. However, it does reproduce on >> a 32-bit guest on a 64-bit host, and on a 32-bit user load running in >> a 64-bit guest on a 64-bit host. > > Thanks, I'll setup a 64 bit partition and start debugging. I'm a bit > confused though, I thought CR0.TS even covers SIMD instructions?
It does, and the fact that a 32-bit guest suffers from the same issue indicate that sse is not the cause. Locking the vcpu to a cpu does not change the failures, so it isn't related to vcpu migration. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
