On Monday 05 June 2006 13:06, Blaisorblade wrote: > On Sunday 04 June 2006 21:06, Andi Kleen wrote: > > > It isn't yet perfect, because we don't yet save floating point context. > > > But that will come later. Additionally, there's a potential problem since > > > RED zones will alternate stacks are used, unlike x86_64, so more stack > > > space (128 bytes more) is used. But this shouldn't be a problem. > > > Instead, having no red zone (like x86_64) > > > > x86-64 has a red zone. > > On the alternate stack too?
No, there not. > The comment in the below code confused me... even > if when nesting signal frames sas_ss_flags(rsp) should be 0 and so the > redzone will be used. > The below "RED-PEN" comment is probably wrong then... or not? > > arch/x86_64/kernel/signal.c: > /* RED-PEN: redzone on that stack? */ It's bogus because the alternative stack cannot be nested. I will remove it. _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
