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From: Pavel Machek <pavel@ucw.cz>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "David S. Miller" <davem@redhat.com>,
	jsimmons@infradead.org, benh@kernel.crashing.org,
	paulus@samba.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-fbdev-devel@lists.sourceforge.net
Subject: Re: atyfb in 2.5.51
Date: Thu, 12 Dec 2002 21:23:23 +0100	[thread overview]
Message-ID: <20021212202323.GA789@elf.ucw.cz> (raw)
In-Reply-To: <1039642510.18467.40.camel@irongate.swansea.linux.org.uk>

Hi!

> On Wed, 2002-12-11 at 20:43, David S. Miller wrote:
> > fbdev is nice, in the specific cases where the device fits the fbdev
> > model, because once you have the kernel bits you have X support :)
> 
> fbdev also can't be used in some situations on x86. Deeply fascinating
> things happen on some x86 processors if you execute a loop of code with
> an instruction that crosses two different memory types.

Sounds like cpu bug to me? What cpus are affected?

Could be worked around by pointing debug register at memory boundary?

								Pavel
-- 
Worst form of spam? Adding advertisment signatures ala sourceforge.net.
What goes next? Inserting advertisment *into* email?

  reply	other threads:[~2002-12-12 20:23 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-10 22:31 atyfb in 2.5.51 Paul Mackerras
2002-12-10 23:11 ` Benjamin Herrenschmidt
2002-12-11  6:18   ` James Simmons
2002-12-11  8:42     ` David S. Miller
2002-12-11 15:16       ` James Simmons
2002-12-11 20:43         ` David S. Miller
2002-12-11 21:35           ` Alan Cox
2002-12-12 20:23             ` Pavel Machek [this message]
2002-12-13  8:53             ` Geert Uytterhoeven
2002-12-13 10:26               ` Alan Cox
2002-12-22 13:40                 ` Geert Uytterhoeven
2002-12-11 21:06         ` Paul Mackerras
2002-12-15 11:45         ` Stefan Reinauer
2002-12-13  8:49       ` Geert Uytterhoeven
2002-12-11 12:49   ` [Linux-fbdev-devel] " Antonino Daplas
2002-12-11 15:46     ` James Simmons

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