After some further investigation, this bug appears to be a qemu-kvm bug. I installed the lucid version of qemu-kvm, downgraded the domain definition as follows:
<domain type='kvm'> [...] <os> <type arch='x86_64' machine='pc-0.12'>hvm</type> ^^^^^ [...] </domain> And the domain now suspends and resumes reliably. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/771227 Title: Domain save/restore does not work (kvm) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs