Re: [Qemu-devel] [PATCH 3/3] Delayed IP packets

[Amit Shah]

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