On 6/13/15 10:01 PM, O'Connor, Daniel wrote: >> On 13 Jun 2015, at 09:17, Julian Elischer <julian_at_freebsd.org> wrote: >> >>>> could it be that more than one CPUs get the NMI at the same time? >>> i guess, its possible. is there an easy way to check for that? >> hard code checks in the code so that all except the first do something different. >> (even only as a debug check).. like write to some location and loop... > How about just something to the effect of.. > if (curcpu != cpu0) > while (1) > ; well, use 'pause' in the loop to save power. or even halt maybe.. (whatever the idle loop uses) and write something to an array ( stopped_by_nmi[curcpu-index] ) on entering the code so the base processor can see what processors entered it. (names not correct) > > -- > Daniel O'Connor > "The nice thing about standards is that there > are so many of them to choose from." > -- Andrew Tanenbaum > GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C > > > >Received on Sat Jun 13 2015 - 12:33:05 UTC
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