Messages in this thread | | | Date | Fri, 27 Dec 2002 18:05:35 -0800 | From | "H. Peter Anvin" <> | Subject | Re: Intel P6 vs P7 system call performance |
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Linus Torvalds wrote: > Note that that was true even before this patch - you cannot use glibc > without having the default DS/ES settings anyway. I not only checked with > Uli, but gcc simply cannot generate code that has different segments for > stack and data, so if you have non-flat segments you had to either
More importantly, SYSENTER hardcodes flat layout.
-hpa
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