Re: [Qemu-devel] Migration from older Qemu to Qemu 2.0.0 does not work

[Dr. David Alan Gilbert]

* Stefan Priebe - Profihost AG (address@hidden) wrote:
> 
> > Am 09.05.2014 um 15:41 schrieb "Dr. David Alan Gilbert" <address@hidden>:
> > 
> > * Stefan Priebe - Profihost AG (address@hidden) wrote:
> >> Hello list,
> >> 
> >> i was trying to migrate older Qemu (1.5 and 1.7.2) to a machine running
> >> Qemu 2.0.
> >> 
> >> I started the target machine with:
> >> 
> >> -machine type=pc-i440fx-1.5 / -machine type=pc-i440fx-1.7
> > 
> > I'd expect you to have to run with the same machine type on both sides.
> > I ran some simple virt-test migrate tests (just the basic one) and got
> > v1.5.3->v1.6.2
> > v1.5.3->v1.7.1
> > v1.5.3->v2.0.0-rc1
> >   working for most machine types, pc-i440fx-1.5 passed with all of those.
> > Note that's only the simplest test.
> 
> My test involved USB Controller virtio Network cards and rbd virtio-scsi 
> drives.

That probably makes things more interesting :-) I'd start with the simplest
config you can find and add each one of those until it breaks.

> Can you give me your simple start line so I could test if this works for me 
> while adding some more arguments.

I've got a slightly hacked up libvirt, but I'm doing

  ./run -t qemu --machine-type=$MACTYPE -g Linux.JeOS.19.x86_64.i440fx 
--qemu-bin=$SRC --qemu-dst-bin=$DST --qemu_sandbox=off --tests 
migrate.default.tcp --disk-bus=ide

and looking at the logs we have:

/opt/qemu/v1.5.3/bin/qemu-system-x86_64 \
    -S  \
    -name 'virt-tests-vm1'  \
    -sandbox off  \
    -M pc-i440fx-1.5  \
    -nodefaults  \
    -vga std  \
    -chardev 
socket,id=hmp_id_hmp1,path=/tmp/monitor-hmp1-20140415-104517-rAfzfDef,server,nowait
 \
    -mon chardev=hmp_id_hmp1,mode=readline  \
    -chardev 
socket,id=serial_id_serial0,path=/tmp/serial-serial0-20140415-104517-rAfzfDef,server,nowait
 \
    -device isa-serial,chardev=serial_id_serial0  \
    -chardev 
socket,id=seabioslog_id_20140415-104517-rAfzfDef,path=/tmp/seabios-20140415-104517-rAfzfDef,server,nowait
 \
    -device 
isa-debugcon,chardev=seabioslog_id_20140415-104517-rAfzfDef,iobase=0x402 \
    -device ich9-usb-uhci1,id=usb1,bus=pci.0,addr=03 \
    -drive 
id=drive_image1,if=none,file=/home/dgilbert/virt-test/shared/data/images/jeos-19-64.qcow2
 \
    -device 
virtio-blk-pci,id=image1,drive=drive_image1,bootindex=0,bus=pci.0,addr=04 \
    -device 
virtio-net-pci,mac=9a:18:19:1a:1b:1c,id=idz0uWFP,vectors=4,netdev=idMwmdMc,bus=pci.0,addr=05
  \
    -netdev user,id=idMwmdMc,hostfwd=tcp::5000-:22  \
    -m 1024  \
    -smp 2,maxcpus=2,cores=1,threads=1,sockets=2  \
    -cpu 'SandyBridge' \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1  \
    -vnc :1  \
    -rtc base=utc,clock=host,driftfix=none  \
    -boot order=cdn,once=c,menu=off \
    -enable-kvm

Dave

> Thanks!
> 
> Stefan
> 
> > 
> > Dave
> > --
> > Dr. David Alan Gilbert / address@hidden / Manchester, UK
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK