Re: [CHECKER] large stack variables (>=1K) in 2.4.4 and 2.4.4-ac8

[Andi Kleen]

On Fri, May 25, 2001 at 07:52:02AM -0400, Brian Gerst wrote:
> Actually, you will never get a stack fault exception, since with a flat
> stack segment you can never get a limit violation.  All you will do is
> corrupt the data in task struct and cause an oops later on when the
> kernel tries to use the task struct.  There are only two ways to
> properly trap a kernel stack overflow:

In my experience the stack pointer eventually gets corrupted and starts 
pointing to some unmapped area, which gives you a stack fault (admittedly
a backtrace is a bit hard after that)

-Andi
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