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Re: Malta crashes on the latest 2.4 kernel

To: "H. J. Lu" <hjl@lucon.org>
Subject: Re: Malta crashes on the latest 2.4 kernel
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Thu, 11 Jul 2002 04:36:02 +0200
Cc: Jun Sun <jsun@mvista.com>, linux-mips@oss.sgi.com
In-reply-to: <20020710164900.A28911@lucon.org>; from hjl@lucon.org on Wed, Jul 10, 2002 at 04:49:00PM -0700
References: <3D2CBF73.50001@mvista.com> <20020710164900.A28911@lucon.org>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.2.5.1i
On Wed, Jul 10, 2002 at 04:49:00PM -0700, H. J. Lu wrote:

> > See the crash scene.  Anybody knows the cause?  It is strange to see the 
> > reserved exception.
> > 
> 
> The 2.4 kernel checked out around Jul  4 09:28 PDT works fine on Malta.

Jun's patch certainly is correct for some MIPS32 CPUs; others may get
away without this one.  Previous experience with pipeline hazards on MIPS
processors has shown that at times hazards may change even between minor
revisions of a CPU; documentation isn't always trustworthy about such
minor details of the pipeline.

  Ralf


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