Re: crash in entry.S restore_all, 2.6.12-rc2, x86, PAGEALLOC

Dave Jones
2005-04-07T16:47:52Z

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