Re: timerfd functions hang on both x86 and ARM with RT patch and RT scheduling policies

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On Wed, 2012-01-25 at 18:22 -0600, Sankara Muthukrishnan wrote:

> I wonder why my test worked for priority 1 alone before (without this
> fix) and I did not see any other threads using RT scheduler in the
> system with priority 1 or 2.

It worked at priority 1 because ksoftirqd was also at priority 1.  The
user task can't preempt ksoftirqd, ksoftirqd does it's thing and rides
off into the sunset before the user task arrives at the bad idea spot.

	-Mike

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