[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

[Michael Tokarev]

And one more thing -- from what to what are you trying to migrate?  I
see you have qemu-kvm installed too, -- were you using it previously?
Note that qemu-kvm 1.1 had the same video ram size = 16Mb as current
qemu have.  But my cross-version migration comment stays and in this
case it becomes even stronger.

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https://bugs.launchpad.net/bugs/1123975

Title:
  QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

Status in QEMU:
  New

Bug description:
  I have upgraded to QEmu 1.3.90 (Debian 1.4.0~rc0+dfsg-1exp) but now
  when I try to restore a live snapshot made in QEmu 1.1.2 (Debian
  1.1.2+dfsg-5) I get the following message:

  virsh # snapshot-revert fgtbbuild wtb
  error: operation failed: Error -22 while loading VM state

  I have test VMs with live snapshots coreresponding to different
  testing configurations. So I typically revert the VMs in one of the
  live snapshots and run the tests. It would be pretty annoying to have
  to recreate all these live snapshots any time I upgrade QEmu.

  
  ipxe-qemu                              1.0.0+git-20120202.f6840ba-3
  qemu                                   1.4.0~rc0+dfsg-1exp
  qemu-keymaps                           1.4.0~rc0+dfsg-1exp
  qemu-kvm                               1.4.0~rc0+dfsg-1exp
  qemu-system                            1.4.0~rc0+dfsg-1exp
  qemu-system-arm                        1.4.0~rc0+dfsg-1exp
  qemu-system-common                     1.4.0~rc0+dfsg-1exp
  qemu-system-mips                       1.4.0~rc0+dfsg-1exp
  qemu-system-misc                       1.4.0~rc0+dfsg-1exp
  qemu-system-ppc                        1.4.0~rc0+dfsg-1exp
  qemu-system-sparc                      1.4.0~rc0+dfsg-1exp
  qemu-system-x86                        1.4.0~rc0+dfsg-1exp
  qemu-user                              1.4.0~rc0+dfsg-1exp
  qemu-utils                             1.4.0~rc0+dfsg-1exp
  libvirt-bin                            1.0.2-1
  libvirt-dev                            1.0.2-1
  libvirt-doc                            1.0.2-1
  libvirt-glib-1.0-0                     0.1.2-1
  libvirt0                               1.0.2-1
  libvirtodbc0                           6.1.4+dfsg1-5

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