------- Comment From [email protected] 2018-07-30 10:24 EDT------- The host (KVM hypervisor) is 16.04. So you suggest to install newer UCA qemu on the hypervisors. That is something I have to decline today. Those hosts are runnung some more VMs. So to update the hypervisors I need a service window aggreed with my customers. And I have to stay on a kind of supported mainstream level, no experimental stuff. Until then I can do some tests with some guest VMs. Or someone other has a test environment where he/she can play also with the hypervisors. As I mentioned: the problem is reproducible !
---------- So now I did another test with a 16.04 guest. The problem gets worse, but maybe it helps in catching the bug. I did a new installation of a VM with Ubuntu 16.04.5 LTS, kernel 4.4.0-131-generic #157-Ubuntu SMP. Live migration succeeded. Then I installed linux-generic-hwe-16.04. The system booted with kernel 4.15.0-29-generic #31~16.04.1-Ubuntu SMP. And live migration failed: # virsh migrate --persistent --live p8lnxtst1 qemu+ssh://pkvm1/system error: internal error: early end of file from monitor, possible problem: 2018-07-30T14:13:34.381447Z qemu-system-ppc64: VQ 0 size 0x100 Guest index 0x302 inconsistent with Host index 0x16c: delta 0x196 2018-07-30T14:13:34.381496Z qemu-system-ppc64: error while loading state for instance 0x0 of device 'pci@800000020000000:01.0/virtio-net' 2018-07-30T14:13:34.381806Z qemu-system-ppc64: load of migration failed: Operation not permitted It is still very reproducible! This means the new hwe kernel introduced the problem !!! Or it is just not compatible with 4.4.0-130-generic of the KVM hypervisor. BTW, no entry in the /var/log/libvirt/qemu log files regarding the migration attempts. Any other log or trace files I could look for or activate? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1783140 Title: KVM live migration fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1783140/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
