Re: [patch] KVM: T60 resume fix

[Avi Kivity]

Michael S. Tsirkin wrote:
> > Quoting Ingo Molnar <mingo@xxxxxxx>:
> > Subject: [patch] KVM: T60 resume fix
> > From: Ingo Molnar <mingo@xxxxxxx>
> >
> > my T60 laptop does not resume correctly due to KVM attempting to send an 
> > IPI to a CPU that might be down (or not up yet). (Doing so also triggers 
> > the send_IPI_mask_bitmask() warning in arch/i386/kernel/smp.c, line 
> > 732.)
> >
> > with this fix applied my laptop does not hang during resume.
> >
> > [ KVM will have to disable/enable virtualization on the CPU itself that
> >   goes down / comes up, not via an IPI sent from the requesting CPU. ]
> >
> > Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
> >     
>
> Since I don't normally have kvm loaded, this patch is unlikely
> to help me, is that right?
>
>   

That is correct.


--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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