Messages in this thread | | | Date | Wed, 1 Dec 1999 15:17:24 +0000 | From | Jens Axboe <> | Subject | Re: Q: waiting for a short time and not beeing a resource hog |
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On Wed, Dec 01 1999, Andreas Schuldei wrote: [waiting inside isr] > > Not in an interrupt context. Basically you can't sleep or > > schedule inside an interrupt handler. How long do you need > > to wait? > > for 50 us (10000 ticks on a 200MHz machine).
Bad hardware?
> Is > schedule_timeout(ticks) > > any better? I see it beeing used quite a lot in nowerdays kernels
No, it is essentially the same thing. You must not force a schedule at interrupt time.
-- * Jens Axboe <axboe@image.dk> * Linux CD-ROM Maintainer * http://www.kernel.dk
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