not, I believe in 4.x
we do in 5.x
On Mon, 24 Sep 2001, Matt Dillon wrote:
>
> :>The pointers in the last few entries of the vm_page_buckets array got
> :>corrupted when an agument to a function that manipulated whatever was next
> :>in ram was 0, and it turned out that it was 0 because
> :> of some PTE flushing thing (you are the one that found it... remember?)
> :
> :I think I've also seen a few reports of programs exiting with
> :"Profiling timer expired" messages with 4.4. These can be caused
> :by stack overflows, since the p_timer[] array in struct pstats is
> :one of the things that I think lives below the per-process kernel
> :stack. I wonder if they are related? Stack overflows could result
> :in corruption of local variables, after which anything could happen.
> :
> :That said, hardware problems are still a possiblilty.
> :
> :Ian
>
> Hmm. Do we have a guard page at the base of the per process kernel
> stack?
>
> -Matt
>
>
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