[Qemu-devel] [Bug 1305402] Re: libvirt fails to start VirtualMachines

[Serge Hallyn]

Thanks for reporting this bug.  We briefly had a 'trusty' machine type,
with a corresponding libvirt patch to handle it.  When we renamed the
trusty machine type we dropped the libvirt patch to handle it.

We should either re-introduce the libvirt patch to handle the trusty
machine type for those who have stale VM definitions, or mention this in
the release notes.  In either case we should keep this bug open to guide
others who run into this problem.

** Also affects: qemu (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: qemu
       Status: New => Invalid

** Changed in: qemu (Ubuntu)
       Status: New => Confirmed

** Changed in: qemu (Ubuntu)
   Importance: Undecided => Medium

** Also affects: libvirt (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: libvirt (Ubuntu)
       Status: New => Confirmed

** Changed in: libvirt (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1305402

Title:
  libvirt fails to start VirtualMachines

Status in QEMU:
  Invalid
Status in “libvirt” package in Ubuntu:
  Confirmed
Status in “qemu” package in Ubuntu:
  Confirmed

Bug description:
  I've created several kvm based machines using virtual machine manager.
  They have operated well over the last 4 days without issue. I did an
  apt-get upgrade, and qemu was in the list of updates.

  After upgrading, I am unable to start any of the provisioned virtual
  machines with the following error output

  virsh # start node2
  error: Failed to start domain node2
  error: internal error: process exited while connecting to monitor: 
qemu-system-x86_64: -machine trusty,accel=kvm,usb=off: Unsupported machine type
  Use -machine help to list supported machines!

  virsh # start node3
  error: Failed to start domain node3
  error: internal error: process exited while connecting to monitor: 
qemu-system-x86_64: -machine trusty,accel=kvm,usb=off: Unsupported machine type
  Use -machine help to list supported machines!

  $ dpkg -l | grep kvm
  ii  qemu-kvm                             2.0.0~rc1+dfsg-0ubuntu3             
amd64        QEMU Full virtualization on x86 hardware (transitional package)

  Log snippet from vm 'media' that was verified working, and fails to
  start after the upgrade.

  LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin 
QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name media -S -machine 
trusty,accel=kvm,usb=off -m 1548 -realtime mlock=off -smp 
1,sockets=1,cores=1,threads=1 -uuid 60b20f7b-6d20-bcb3-f4fc-808a9b2fe0d0 
-no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/media.monitor,server,nowait 
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown 
-boot menu=off,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 
-drive 
file=/var/lib/libvirt/images/media.img,if=none,id=drive-virtio-disk0,format=raw 
-device 
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
 -drive 
file=/home/charles/iso/ubuntu-desktop-12.04.4-amd64.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw
 -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev 
tap,fd=24,id=hostnet0,vhost=on,vhostfd=26 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:a0:69:d9,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-vnc 127.0.0.1:1 -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
  char device redirected to /dev/pts/13 (label charserial0)
  qemu: terminating on signal 15 from pid 31688
  2014-04-10 03:36:54.593+0000: shutting down
  2014-04-10 03:59:25.487+0000: starting up
  LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin 
QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name media -S -machine 
trusty,accel=kvm,usb=off -m 1548 -realtime mlock=off -smp 
1,sockets=1,cores=1,threads=1 -uuid 60b20f7b-6d20-bcb3-f4fc-808a9b2fe0d0 
-no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/media.monitor,server,nowait 
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown 
-boot menu=off,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 
-drive 
file=/var/lib/libvirt/images/media.img,if=none,id=drive-virtio-disk0,format=raw 
-device 
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
 -drive 
file=/home/charles/iso/ubuntu-desktop-12.04.4-amd64.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw
 -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev 
tap,fd=24,id=hostnet0,vhost=on,vhostfd=25 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:a0:69:d9,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-vnc 127.0.0.1:0 -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
  qemu-system-x86_64: -machine trusty,accel=kvm,usb=off: Unsupported machine 
type
  Use -machine help to list supported machines!
  2014-04-10 03:59:25.696+0000: shutting down

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