Messages in this thread | | | Date | Fri, 21 Dec 2007 01:05:34 +0100 | From | Ingo Molnar <> | Subject | Re: Linux 2.6.24-rc5 x86 architecture no longer Oopses... |
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* Andrew Morton <akpm@linux-foundation.org> wrote:
> On Fri, 21 Dec 2007 00:47:59 +0100 > Ingo Molnar <mingo@elte.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?
i looked at the patch you sent - and there the proof was in the sections i quoted.
Ingo
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