On (Thu) 29 Sep 2011 [20:19:42], Jan Kiszka wrote: > On 2011-09-29 20:05, Amit Shah wrote: > > On (Thu) 29 Sep 2011 [19:53:47], Jan Kiszka wrote: > >>>> Can't reproduce, I'm not getting stable hibernation here even without > >>>> any network configured. > >>> > >>> With virtio devices and the patches applied? Can you tell me what > >>> you're seeing? > >> > >> No, I didn't patch my guest. I was using standard IDE with an emulated > >> NIC (or without) against a 3.1-rc3 (or so) guest. > > > > Strange, using qemu.git and an F14 guest (2.6.38) using this cmd line: > > > > ./x86_64-softmmu/qemu-system-x86_64 -m 512 /guests/f14-suspend.qcow2 -net > > none -enable-kvm -smp 2 > > > > I could successfully hibernate and resume. > > -cpu qemu64,-kvmclock makes it work. Would have to check a different > kernel version to find out if it's a guest kernel or qemu/kvm issue.
Aha, yes. I disable kvmclock in my kernels as that has known issues with hibernate. I haven't checked if the 2.6.38 f14 kernel had it disabled, or maybe I didn't hit its problem point soon enough. Amit