On Friday 13 April 2007 00:56:56 Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> >> (This was under Xen, but there's no reason it couldn't happen on bare
> >> hardware.)
> >>
> >
> > Hmm, does Xen perhaps not use interrupt stacks?
>
> Looks like that's all done in do_IRQ, so it should be independent of
> whether its Xen or not. And the stack overflow check is performed on
> the main stack, before switching to the interrupt stack.
Yes, but then we should have seen more frequently, shouldn't we? I always
run with the stack overflow check enabled and I don't think I ever saw
warnings in inflate.
Something must be different in the Xen setup. Dunno if it's a bug,
but such differences could cause more problems later.
-Andi
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