On Thu, Apr 07, 2005 at 07:47:41AM -0700, Linus Torvalds wrote:

 > So the sysenter sequence might as well look like
 > 
 >      pushl $(__USER_DS)      
 >      pushl %ebp
 >      sti
 >      pushfl
 >      ..
 > 
 > which actually does three protected pushes thanks to the one-instruction 
 > "interrupt shadow" after an sti.

Is this guaranteed on every x86 variant (or rather, every one
that has SEP). ?

                Dave

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