On Fri, May 25, 2001 at 03:20:20PM +1000, Keith Owens wrote:
> >> On a side note, does anyone know if the kernel does checking if the
> >> stack overflowed at any time?
> >You normally get a silent hang or worse a stack fault exception
> >(which linux/x86 without kdb cannot recover from) which gives you instant
> You cannot recover from a kernel stack overflow even with kdb. The
> exception handler and kdb use the stack that just overflowed.
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.
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This archive was generated by hypermail 2b29 : Thu May 31 2001 - 21:00:22 EST