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

Keith Owens
2001-05-25T08:08:59Z

On Fri, 25 May 2001 08:11:07 +0100,
David Welch <david.welch@st-edmund-hall.oxford.ac.uk> wrote:
>Why not use a task gate for the double fault handler points to a
>per-processor TSS with a seperate stack. This would allow limited recovery
>from a kernel stack overlay.

It is far too late by then. struct task is at the bottom of the kernel
stack, a stack overflow would corrupt the task data long before the
hardware was involved.