On 03/28/2017 12:34 AM, Jiří Sléžka wrote: > Hi all, > > I have just upgraded ovirt manager from 4.1.0 to 4.1.1, then I have > upgraded one host. After reboot and activation of this host some vms > started to migrate here. > > Some time after migration CPU of this vms go to 100% and vms become > unreachable. > > There is /var/log/libvirt/qemu/hypnos.log (hypnos is one of this vms) > https://pastebin.com/U30xfBMJ > > Powering off and starting again solve this but I would like to have a > glue what is happening. > > I suspect this line > > 2017-03-27T22:09:23.746710Z qemu-kvm: warning: TSC frequency mismatch > between VM (2600031 kHz) and host (2100024 kHz), and TSC scaling unavailable > > Original host uses "AMD Opteron(TM) Processor 6238" with "cpu MHz: > 2600.113" and upgraded host uses "AMD Opteron(tm) Processor 6172" with > "cpu MHz: 2100.097".
It looks like it isn't problem with 4.1.1 at all. There is just missing tsc_scale cpu flag on our older AMD CPUs... http://unix.stackexchange.com/questions/296636/100-cpu-utilisation-and-hang-after-virsh-migrate This is probably unsolvable hw problem, right? Cheers, Jiri > > Cheers, > > Jiri > > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users >
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