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Message-Id: <20071220160203.f940f088.akpm@linux-foundation.org> Date: Thu, 20 Dec 2007 16:02:03 -0800 From: Andrew Morton <akpm@...ux-foundation.org> To: Ingo Molnar <mingo@...e.hu> Cc: trond.myklebust@....uio.no, tglx@...utronix.de, mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org Subject: Re: Linux 2.6.24-rc5 x86 architecture no longer Oopses... On Fri, 21 Dec 2007 00:47:59 +0100 Ingo Molnar <mingo@...e.hu> wrote: > it needs to be found out why the preempt_count suddenly went to zero. Is > task struct corruption out of question? Strictly we shouldn't care - we _know_ we've already hit a kernel bug and who knows, perhaps that buggy code did an unbalanced preempt_disable(). So make the oops code more robust. otoh, we don't want to be hiding a bug. What piece of code guarantees that we ender the oops code with preemption disabled? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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