------- Comment From xxd...@de.ibm.com 2018-08-22 04:36 EDT------- Yes, the problem is not solved. Most of the actions have been tests on my side. So I could finally test with SLES15 and Ubuntu 17.10 guests, both migrating successful. But 18.04 does not migrate. This means there was a change between kernel 4.13.0-46 and 4.15.0-23 which introduced the problem on ppc but not on x86 (nobody ever tested z).
If someone wants to provide a fix, I can test it in our environment, but only before August 5. On August 5 we will upgrade our hypervisors to 18.04 and then we can hopefully migrate all guests again ... at least until to the next newer guest that makes problems. So I would appreciate if someone can catch that problem before we run into it again. Maybe someone also wants to check if the problem also exists on z. And maybe it's also worth to think about extending the test suites to also test such cases with guests newer than the hypervisors (if you think it's a valid scenario in the field). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1783140 Title: KVM live migration fails Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Status in qemu package in Ubuntu: Incomplete Bug description: Environment: 2 POWER8 with Ubuntu 16.04.4 LTS as KVM hypervisor. 1 KVM guest with Ubuntu 18.04 LTS. Virtual disk for the guest is a qcow2 file on an NFS share, accessible from both hypervisors, so live migration is possible and works for all other guests (SLES, RHEL, Ubunutu 16.04), Live migratino of Ubuntu 18.04 guest fails on ppc, while the same test on an x86_64 environment suceeds. root@pkvm2:~# virsh migrate --persistent --live p8lnxtst4 qemu+ssh://pkvm1/system error: internal error: early end of file from monitor, possible problem: 2018-07-23T11:12:25.586385Z qemu-system-ppc64: VQ 0 size 0x100 Guest index 0x38aa inconsistent with Host index 0xa980: delta 0x8f2a 2018-07-23T11:12:25.586434Z qemu-system-ppc64: error while loading state for instance 0x0 of device 'pci@800000020000000:01.0/virtio-net' 2018-07-23T11:12:25.587246Z qemu-system-ppc64: load of migration failed: Operation not permitted root@pkvm2:~# uname -a Linux pkvm2 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14 08:51:21 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1783140/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
