On Fri, Aug 22, 2014 at 04:05:46PM -0300, Marcelo Tosatti wrote: > On Fri, Aug 22, 2014 at 04:05:07PM -0300, Marcelo Tosatti wrote: > > On Fri, Aug 22, 2014 at 10:39:38PM +0400, Andrey Korolyov wrote: > > > On Fri, Aug 22, 2014 at 9:45 PM, Marcelo Tosatti <mtosa...@redhat.com> > > > wrote: > > > > On Fri, Aug 22, 2014 at 08:44:53PM +0400, Andrey Korolyov wrote: > > > >> > > > > >> > I`m running 3.10, so patches are not here, will try 3.16 soon. Even > > > >> > if > > > >> > problem will be fixed, it still will be specific for 2.1, earlier > > > >> > releases working well and I`ll bisect at a time. > > > >> > > > >> Thanks, using 3.16 helped indeed. Though the bug remains as is at 2.1 > > > >> on LTS 3.10, should I find the breaking commit, or it is better to > > > >> backport kvm subsystem changes related to apic to 3.10? > > > > > > > > Andrey, > > > > > > > > Can you try the patchset (which includes cpu_clean_all_dirty) please? > > > > It should be equivalent to your proposed patch. > > > > > > > > > > > > > > > > > Just checked case for Windows, bug is still here (twelve continuous > > > ping-pong migrations between two hosts). Also there is very weird > > > observation that the if VM stalled, password window renders in a > > > cripple way just after connection when no VNC region refreshes are > > > made yet by mouse, vm-is-alive case rendering after-c-a-d prompt > > > properly. Probably it`ll be easier to check behaviour against Paolo` > > > patchset for RH kernel, though I`m still in progress with cutting out > > > the rest to adapt them on top of bare 3.10, for ones with access to > > > git log it should be easier :) > > > > Argh i forgot cpu_sync_all_states. Will resend shortly. > > Well, can you add cpu_synchronize_all_states() before > the cpu_clean_all_dirty() call and retry? > > Sorry.
Andrey, Can you give instructions on how to reproduce please? - qemu.git codebase (if you have any patches relative to a given commit id, please provide the patches). - qemu command line. - how to recreate guest disk contents. - how to recreate workload at which point migration fails. - migration command relative to last item. Thanks
