Messages in this thread | | | Date | Sun, 22 Dec 2002 11:13:38 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: Intel P6 vs P7 system call performance |
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On Sat, 21 Dec 2002, Linus Torvalds wrote:
> Saving and restoring eflags in user mode avoids all of these > complications, and means that there are no special cases. None. Zero. > Nada.
and i'm 100% sure the more robust eflags saving will also avoid security holes. The amount of security-relevant complexity that comes from all the x86 features [and their combinations] is amazing.
Ingo
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