Re: [Xen-devel] [PATCH, v2] reduce 'd' debug key's global impact

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 06.05.10 09:42 >>>
>Pick something rare like SPURIOUS_APIC_VECTOR. In that particular handler
>you can even put your check on the unlikely path that checks for and acks a
>real vectored interrupt.

Hmm, yes, that's indeed better than the event check one.

However, I noticed that even without that change on_selected_cpus()
is being used in interrupt context, hence I wonder whether indeed only
the new mechanism should be going the call-func-less route.

Jan


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