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Date: Thu, 12 Dec 2002 21:23:23 +0100
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
Message-ID: <20021212202323.GA789@elf.ucw.cz>
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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
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