Hi !
Gerrit Binnenmars pointed out that others have the same problem:
http://linux.omap.com/pipermail/linux-omap-open-source/2007-April/009535.html:
http://article.gmane.org/gmane.linux.distributions.gumstix.general/21376/match=gumstix+realtime+bug+sched+c
Jan Altenberg showed me that in include/asm-arm/system.h I should comment out
this line:
#define __ARCH_WANT_INTERRUPTS_ON_CTXSW
Without this line, irqs are disabled on context switches. But this is only a
change that the WARN dose not more occure. Is this now a hack or the
sollution? Hopfully some RT hacker can look deeper, and find what is wrong.
thanks
regards manfred
Am Freitag, 20. April 2007 15:26 schrieben Sie:
> hi jan !
>
> Am Freitag, 20. April 2007 15:01 schrieben Sie:
> > > I am using 2.6.21-rc7 with Preempt_rt Patch 2.6.20-rc6-rt0 on ep93xx.
> >
> > Do you mean 2.6.21-rc6-rt0?
>
> sorry yes 2.6.21-rc6-rt0.
>
> > > This oops does not trigger in preempt_rt patch is applied.
> >
> > It does only appear, when the preempt_rt patch is applied. Did I get you
> > right?
>
> correct
>
> regards manfred
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