Messages in this thread | | | Date | Thu, 30 Sep 1999 13:48:35 -0700 (PDT) | From | Linux Lists <> | Subject | Re: Scheduling inside bottom-half |
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On Thu, 30 Sep 1999, B. James Phillippe wrote:
> On Thu, 30 Sep 1999, Linux Lists wrote: > > > Once this event occurs, the bottom-half will then "sleep" (using > > current->timeout / schedule) for one jiffy and then generate the > > You may _never_ under any circumstances sleep outside of process context > (when int_count is non-zero on 2.0 or in_interrupt() returns true in 2.2). > Sleeping includes the forceful act of sleeping (ex. schedule()) and > anything that has the potential to sleep, such as non-atomic memory > allocation.
Thanks for the very good info.
> You will need to find a different way to accomplish what you are trying to > do. If you need to perform an action at a later point, you can try a > kernel timer. If you only need to wait for a minute amount of time, you > can busy wait (such as udelay).
I don't feel comfortable with busy waiting ... Where can I find more info about how to use kernel timers ??
Thanks again for your help.
Regards, Ivan
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