Re: [PATCH 0/5 V5] Avoid soft lockup message when KVM is stoppedby host

From: Avi Kivity
Date: Thu Dec 15 2011 - 04:48:56 EST


On 12/14/2011 07:58 PM, Eric B Munson wrote:
> > I don't think you should see a guest softlockup if the host is
> > overloaded. Nor should you see it due to a long live migration pause,
> > or STOP/CONT. You should see a guest softlockup if it is spinning due
> > to a guest bug, and not for any other reason.
> >
> > I think we need a mix of the ioctl (for STOP/CONT and voluntary pauses,
> > like live migration or qemu stop/cont) and preempt notifiers (together
> > with a check for TASK_RUNNING/TASK_UNINTERRUPTIBLE, for scheduling or
> > swap delays)
> >
>
> Do you want the preemption notifier work in before you will consider merging
> this set, or can that be a follow on?

Yes please.

--
error compiling committee.c: too many arguments to function

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