[ovirt-users] Live migration qemu 2.1.2 -> 2.1.3: Unknown savevm section

[Markus Stockhausen]

Hi,

don't know what will be the best place for the following question.
So starting with the OVirt mailing list.

We are using OVirt with FC20 nodes with enabled virt-preview.
Thus we are running qemu 2.1.2. Everything is working smoothly
including live merge.

For testing purposes we compiled qemu 2.1.3 from Fedora koji
and updated one of the hosts. Trying to migrate a running VM to
the new host fails with the message

Unknown savevm section or instance 'kvm-tpr-opt' 0

I guess some incompatibility between the versions. But qemu git
history between 2.1.2 and 2.1.3 gives no hints about the reason.

Any ideas - or is that migration scenario not supported at all?

Markus

P.S. start parameters are:

LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice SPICE_DEBUG_ALLOW_MC=1 /usr/bin/qemu-kvm -name vm60 -S -machine pc-1.0,accel=kvm,usb=off
-cpu Nehalem,hv_relaxed -m 4096 -realtime mlock=off -smp 2,maxcpus=160,sockets=160,cores=1,threads=1 -uuid d2d8bdfd-99a6-41c0-84e7-26e1d6a6057b -smbios type=1,manufacturer=oVirt,product=oVirt Node,version=20-3,serial=49434D53-0200-48D6-3000-D6483000EEC8,uuid=d2d8bdfd-99a6-41c0-84e7-26e1d6a6057b -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/vm60.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=2014-12-11T16:09:44,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x5 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw,serial= -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive file=/rhev/data-center/94ed7a19-fade-4bd6-83f2-2cbb2f730b95/965ca3b6-4f9c-4e81-b6e8-5ed4a9e58545/images/422a4486-6642-41ae-bb1d-b6a955550689/26b4c1e3-faf8-4fb3-b662-da6a55a3d8f2,if=none,id=drive-virtio-disk0,format=raw,serial=422a4486-6642-41ae-bb1d-b6a955550689,cache=none,werror=stop,rerror=stop,aio=threads -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=29,id=hostnet0,vhost=on,vhostfd=30 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:0c:29:7a:94:f1,bus=pci.0,addr=0x3,bootindex=2 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/d2d8bdfd-99a6-41c0-84e7-26e1d6a6057b.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/d2d8bdfd-99a6-41c0-84e7-26e1d6a6057b.org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 -chardev spicevmc,id=charchannel2,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=3,chardev=charchannel2,id=channel2,name=com.redhat.spice.0 -spice tls-port=5901,addr=A.B.C.D,x509-dir=/etc/pki/vdsm/libvirt-spice,tls-channel=main,tls-channel=display,tls-channel=inputs,tls-channel=cursor,tls-channel=playback,tls-channel=record,tls-channel=smartcard,tls-channel=usbredir,seamless-migration=on -k de -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -incoming tcp:[::]:49152 -msg timestamp=on

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