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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
Date: Thu, 20 Nov 2008 17:00:03 +0100	[thread overview]
Message-ID: <s5hk5ay9ym4.wl%tiwai@suse.de> (raw)
In-Reply-To: <20081120155808.19439807@lxorguk.ukuu.org.uk>

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

  reply	other threads:[~2008-11-20 16:00 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-20 15:39 vm86 segfaults with NX bit Takashi Iwai
2008-11-20 15:58 ` Alan Cox
2008-11-20 16:00   ` Takashi Iwai [this message]
2008-11-20 16:05     ` Takashi Iwai
2008-11-20 16:58 ` Arjan van de Ven
2008-11-20 17:01   ` Takashi Iwai
2008-11-20 17:05     ` Takashi Iwai
2008-11-20 21:24       ` H. Peter Anvin
2008-11-21 11:38         ` Takashi Iwai
2008-11-21 17:42     ` Egbert Eich
2008-11-22 10:20       ` Takashi Iwai

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