On Mon, Apr 16, 2012 at 06:00:22PM +0200, Marc-André Lureau wrote: > Hi > > On Mon, Apr 16, 2012 at 2:32 PM, Srivatsa S. Bhat > <srivatsa.bhat@xxxxxxxxxxxxxxxxxx> wrote: > > On 04/16/2012 05:34 PM, Marc-André Lureau wrote: > > Did you happen to perform a suspend/resume or a hibernation/restore > > on your computer? (Or did you do CPU hotplug manually?) > > > > If yes, you might be seeing the problem reported at: > > https://bugzilla.redhat.com/show_bug.cgi?id=714271 > > yep, thank you very much, that seems to be the reason This problem has existed for ages now. I wonder if there's a way we get get a userspace workaround implemented. IIRC, pm-utils has the ability to run arbitrary shell scripts upon restore from suspend/hibernate. We could put a temp hack in libvirt which resets the CPU affinity in the top level libvirt cgroup. That would at least make new VMs start with good affinity. To deal with existing running VMs, we would need to record existing affinity before suspend & re-store it fully afterwards which is more complicated Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list