Am 31.03.2016 um 18:52 schrieb Paolo Bonzini: > > On 31/03/2016 17:38, Peter Lieven wrote: >> >>> Am 31.03.2016 um 15:23 schrieb Paolo Bonzini <pbonz...@redhat.com>: >>> >>> >>> >>>> On 31/03/2016 15:12, Peter Lieven wrote: >>>>>> KVM does not let you read or write this MSR if the corresponding CPUID >>>>>> bit is not set. This in turn causes MSRs that come after MSR_TSC_AUX >>>>>> to be ignored by KVM_SET_MRSS. >>>> Is it possible that this causes a freeze when migrating vom qemu 2.2.0 >>>> to 2.5.1? >>> I wouldn't exclude it if the CPU model is Westmere or earlier. >> the Host CPU or the Emulated CPU? > The guest.
I can confirm this seems to fix the migration for emulated Westmere CPUs. Regardless if its a 2.2.0 -> 2.5.1 or 2.5.1 -> 2.5.1 migration. Peter
