[Bug 1641532] Re: machine-types trusty and utopic are not unique (depend on the qemu version)

[ChristianEhrhardt]

I prepped a ppa with the "correct" fix (utopic type being 2.1) at:
https://launchpad.net/~paelzer/+archive/ubuntu/bug-1641532-tu-machine-type-ambiguous

All three Releases (Xenial, Yakkety, Zesty) are building right now in the ppa and should be available in about an hour.
Note @ UCA Team - if that works we will need to coordinate on similar fixes for UCA-I through UCA-L.

@sileht: I'd be interested if that version in the ppa would make it work
for you as well or if we are really in the deadlock of  your source
being 2.3 and therefore needing a 2.3 in your case.

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https://bugs.launchpad.net/bugs/1641532

Title:
  machine-types trusty and utopic are not unique (depend on the qemu
  version)

Status in Ubuntu Cloud Archive:
  New
Status in qemu package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I'm currently live-migrating many VMs from an old server to a new one,
  and some VM can't be live migrated.

  The source host is trusty with qemu-system-x86 1:2.3+dfsg-5ubuntu9.4~cloud2
  The destination host is xenial with qemu-system-x86 1:2.5+dfsg-5ubuntu10.6

  When the issue occurs, the destination host raises an error [1] and
  stop the migration process.

  The only difference I see between VMs where live migration works and
  those were it doesn't work is a different machine type.

  * migration works when VM have been created with pc-i440fx-vivid
  * migration doesn't work when VM have been created with pc-i440fx-utopic

  [1] the qemu error report by libvirt on the destination host

  2016-11-14 08:25:40.774+0000: starting up libvirt version: 1.3.1, package: 1ubuntu10.5 (Stefan Bader <stefan.bader at canonical.com> Thu, 06 Oct 2016 13:07:20 +0200), qemu version: 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.6), hostname: n7.tetaneutral.net
  LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/kvm-spice -name a81e7133-9601-4432-86dd-a2401dcad8c2 -S -machine pc-i440fx-utopic,accel=kvm,usb=off -cpu Nehalem -m 256 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid a81e7133-9601-4432-86dd-a2401dcad8c2 -smbios 'type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=2015.1.2,serial=fe2641d2-543a-4d65-b75f-6337bf4b8744,uuid=a81e7133-9601-4432-86dd-a2401dcad8c2' -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-a81e7133-9601-4432-86dd-a2401dcad8c2/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive 'file=rbd:disks/a81e7133-9601-4432-86dd-a2401dcad8c2_disk.config:id=openstack-service:key=XXXXXXXXXXXX==:auth_supported=cephx\;none:mon_host=192.168.99.251\:6789\;192.168.99.252\:6789\;192.168.99.253\:6789,format=raw,if=none,id=drive-ide0-1-1,readonly=on,cache=none,aio=native' -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -drive 'file=rbd:disks/volume-a82bb407-5ccb-4b0e-ba68-a0de1cd58cc3:id=openstack-service:key=XXXXXXXXXXXXXXXXXX:auth_supported=cephx\;none:mon_host=192.168.99.251\:6789\;192.168.99.252\:6789\;192.168.99.253\:6789,format=raw,if=none,id=drive-virtio-disk0,serial=a82bb407-5ccb-4b0e-ba68-a0de1cd58cc3,cache=none,aio=native' -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=43,id=hostnet0,vhost=on,vhostfd=45 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:37:fb:ba,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/var/lib/nova/instances/a81e7133-9601-4432-86dd-a2401dcad8c2/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -device usb-tablet,id=input0 -spice port=5916,addr=0.0.0.0,disable-ticketing,seamless-migration=on -k en-us -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vgamem_mb=16,bus=pci.0,addr=0x2 -incoming defer -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on
  2016-11-14T08:25:44.216364Z qemu-system-x86_64: Unknown ramblock "/rom at etc/acpi/rsdp", cannot accept migration
  2016-11-14T08:25:44.216394Z qemu-system-x86_64: error while loading state for instance 0x0 of device 'ram'
  2016-11-14T08:25:44.216509Z qemu-system-x86_64: load of migration failed: Invalid argument

  Cheers,

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