Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots)

From: Ingo Molnar (mingo@elte.hu)
Date: Thu Feb 20 2003 - 11:44:26 EST


On Thu, 20 Feb 2003, Linus Torvalds wrote:

> Ok, this is definitely a stack overflow:

> Does anybody have an up-to-date "use -gp and a special 'mcount()'
> function to check stack depth" patch? The CONFIG_DEBUG_STACKOVERFLOW
> thing is quite possibly too stupid to find things like this (it only
> finds interrupts that overflow the stack, not deep call sequences).

i had CONFIG_DEBUG_STACKOVERFLOW on, but i'll make it more agressive. It's
fairly easy to reproduce the oops. (at least it was when i was trying to
avoid them :-)

        Ing

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