On Thu, Feb 04, 2010 at 01:33:50AM +0100, Jan Kiszka wrote: > Marcelo Tosatti wrote: > > On Wed, Feb 03, 2010 at 10:29:45PM +0100, Jan Kiszka wrote: > >> So far we synchronized any dirty VCPU state back into the kernel before > >> updating the guest debug state. This was a tribute to a deficit in x86 > >> kernels before 2.6.33. But as this is an arch-dependent issue, it is > >> better handle in the x86 part of KVM and remove the writeback point for > >> generic code. > > > > Jan, > > > > This patch breaks migration. > > Can you elaborate what you did? I can't reproduce, and I do not see any > conceptual issue (given that guest debugging conflicts with migration > anyway). kvm-autotest fails (migration only, install is ok, both Linux and Win guests). Not sure why, perhaps the unconditional KVM_SET_GUEST_DEBUG corrupts state somehow? Tested with io thread enabled. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
