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SubjectRe: [patch] larger kernel stack (8k->16k) per task
On Fri, Feb 08, 2002 at 09:22:05PM +0100, Jes Sorensen wrote:
> Tigran Aivazian <tigran@veritas.com> writes:
>
> > So, I found this patch useful at least for debugging. Moreover, I think it
> > would be very useful to have it in Linus' kernel as a CONFIG_ option so
> > that if people complain about random memory corruption then they can try
> > to reproduce it with larger stack and then (with aid of /proc/stack) the
> > offender is found and fixed. I cc'd Alan; if he thinks this is a bad idea
> > I would be interested to know why.
>
> Well as someone suggested, stick it under CONFIG_SLAB_DEBUG then, it

That was suggested by Andrew Morton...

> surely shouldn't be an option to be enabled in normal production
> kernels but for debugging it's fine.
>

Ahh, but if you are overflowing the stack by a few bytes, and then enable
stack debugging the error will go away because of the alrger stack.

If this goes in, it should have its own config option.

Mike
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