Messages in this thread | | | Subject | Re: [BUG] 2.6.25-rc5-mm1 kernel panic with "Exception: 501 " on powerpc | From | Benjamin Herrenschmidt <> | Date | Thu, 13 Mar 2008 07:40:06 +1100 |
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> Beats me. Maybe we're still enabling interrupts too early. But the new > semaphore code got fixed (didn't it?)
Won't lockdep/irqtrace warn if that happens ? You don't yet have the lockdep patches for ppc64 (I'm still trying to find out why they break iSeries) but it should warn of such a spurrious IRQ enable on other archs too... At least, from a quick look at the code, it -seems- that it does have such a test.
Cheers, Ben.
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