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Re: Promblem with PREF (prefetching) in memcpy

To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: Promblem with PREF (prefetching) in memcpy
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Fri, 4 Oct 2002 15:01:17 +0200 (MET DST)
Cc: Carsten Langgaard <carstenl@mips.com>, Dominic Sweetman <dom@algor.co.uk>, Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
In-reply-to: <1033734968.31839.5.camel@irongate.swansea.linux.org.uk>
Organization: Technical University of Gdansk
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
On 4 Oct 2002, Alan Cox wrote:

> > Is a bus error exception an address related exception ?
> > I'm afraid some implementation think it's not.
> 
> So you need an option for broken systems, no new news 8)

 For MIPS a bus error exception is not an address related exception by
definition (not surprising, anyway).  Specifically, the BadVaddr register
is not set upon one.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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