Re: [PATCH] (3/3) stack overflow checking for x86

From: Dave Jones (davej@codemonkey.org.uk)
Date: Fri Nov 01 2002 - 08:42:38 EST

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On Fri, Nov 01, 2002 at 12:59:06PM +0000, Alan Cox wrote:
> On Thu, 2002-10-31 at 21:30, Dave Jones wrote:
> > > This won't apply cleanly without the irqstack patch, but the conflict is
> > > easy to resolve. It requires the thread_info cleanup.
> >
> > I'm wondering about interaction between this patch and the
> > already merged CONFIG_DEBUG_STACKOVERFLOW ?
>
> It replaces it and actually makes it useful since IRQ usage is now
> bounded and defined relative to non IRQ usage. Without IRQ stacks you
> don't have a hope in hell of catching overflows that depend on an irq
> occuring at the right moment

Yeah, I figured it worked better, but wondered why the patch didn't
remove the existing implementation.

Dave

-- 
| Dave Jones.        http://www.codemonkey.org.uk
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