Messages in this thread | | | From | Manfred Gruber <> | Subject | Re: preempt_rt bug or warn on arm v4t | Date | Wed, 25 Apr 2007 17:02:09 +0200 |
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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 > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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