Re: [patch] KVM: T60 resume fix

Avi Kivity
2007-03-03T08:24:29Z

Michael S. Tsirkin wrote:
>> Quoting Ingo Molnar <mingo@elte.hu>:
>> Subject: [patch] KVM: T60 resume fix
>> From: Ingo Molnar <mingo@elte.hu>
>>
>> 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@elte.hu>
>>
>
> 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.