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SubjectRe: [PATCH v2] kvm: Replace vcpu->swait with rcuwait
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On 20/04/20 22:56, Davidlohr Bueso wrote:
> On Mon, 20 Apr 2020, Marc Zyngier wrote:
>
>> This looks like a change in the semantics of the tracepoint. Before this
>> change, 'waited' would have been true if the vcpu waited at all. Here,
>> you'd
>> have false if it has been interrupted by a signal, even if the vcpu
>> has waited
>> for a period of time.
>
> Hmm but sleeps are now uninterruptible as we're using TASK_IDLE.

Hold on, does that mean that you can't anymore send a signal in order to
kick a thread out of KVM_RUN? Or am I just misunderstanding?

Paolo

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