On Sun, 2002-10-06 at 18:07, Andrew Morton wrote:
> > - while (base->running_timer == timer) {
> > + while (base->running_timer == timer)
> > cpu_relax();
> > - preempt_disable();
> > - preempt_enable();
I am confused as to why Ingo would put these here. He knows very well
what he is doing... surely he had a reason.
If he intended to force a preemption point here, then the lines needs to
be reversed. This assumes, of course, preemption is disabled here. But
I do not think it is.
If he just wanted to check for preemption, we have a
preempt_check_resched() which does just that (I even think he wrote
it). Note as long as interrupts are enabled this probably does not
achieve much anyhow.
So I do not know. I find it odd the solution is to completely remove
it...
Btw, I think the solution to the crash is to add a check to
cpu_online().
Robert Love
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This archive was generated by hypermail 2b29 : Mon Oct 07 2002 - 22:00:56 EST