Messages in this thread | | | Date | Sun, 12 Sep 2004 21:44:40 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 1/3] Separate IRQ-stacks from 4K-stacks option |
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* Chris Wedgwood <cw@f00f.org> wrote:
> > but it's not a big problem with IRQ threading, there most hardirqs > > are preemptable. > > most? what determines which and when?
it depends on how it uses spinlocks. E.g. most of the IDE irq handler can run preemptible. Check out the voluntary-preempt patches (and VP discussions on lkml).
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