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Date: Thu, 20 Nov 2008 17:00:03 +0100
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From: Takashi Iwai <tiwai@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: vm86 segfaults with NX bit
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At Thu, 20 Nov 2008 15:58:08 +0000,
Alan Cox wrote:
> 
> > Also, when NX bit is reset for the first 1MB (or smaller) in
> > do_sys_vm86(), it also works as expected.  But I have little clue
> > where to restore the bit again.
> > 
> > Any good suggestions / solutions?
> 
> Does it behave if you clear NX just for  640K-1MB, and page 0 ?

Yes.


Takashi