Messages in this thread | | | Date | Wed, 18 Sep 2002 19:38:18 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [patch] lockless, scalable get_pid(), for_each_process() elimination, 2.5.35-BK |
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On Wed, 18 Sep 2002, Rik van Riel wrote:
> Agreed, you're right there. On the other hand, walking the threads > _once_ will take 1.5 minutes on a 500 MHz PII (according to Ingo's > measurements). > > That's about 18 times the timeout for the NMI oopser and will cause > people real trouble.
we could fix it to 'just' lock up but still enable interrupts so that the NMI oopser does not trigger. (we'd also have to be careful to never write-lock the tasklist lock with IRQs disabled.) It's still a pretty lame behavior from an OS me thinks ...
Ingo
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