Re: MMU problems?

Lucinda,

I am having good success with the MPC850.  Our board is able to
run without MMU problems, and shutting down is not a problem.
We are using a kernel leveraged from 2.2.5, so it is a bit older,
and I think some of the MMU code has changed since them.

Daris Nevil
SiSIC Inc/SNMC
www.snmc.com

Lucinda Schafer wrote:

I agree. I believe we ARE dealing with a kernel bug, and it is particular to
the MPC823.

Let's hear some success stories--embedded units in production, running in
the field for days, shutting down power and rebooting with no kernel panics.
That may help convince me we are dealing with a hardware issue.

Lucinda Schafer
Staff Software Engineer
Adaptive Micro-Ware, Inc.

-----Original Message-----
From: Patrick Lerda [mailto:Lerda@microprocess.com]
Sent: Thursday, June 22, 2000 2:01 AM
To: 'Dan Malek'; Nguyen Xuan Hoang
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: RE: MMU problems?

Have you tried to do complex operation on a 8xx board like compiling the
kernel. This operation
works well on a PPC740 board, but on a 8xx after a long time the kernel goes
in an unstable
state. Theses bugs are related to the 8xx MMU code.

Patrick LERDA

quoted

-----Message d'origine-----
De:   Dan Malek [SMTP:dan@netx4.com]
Date: jeudi 22 juin 2000 05:56
À:    Nguyen Xuan Hoang
Cc:   linuxppc-embedded@lists.linuxppc.org
Objet:        Re: MMU problems?


Nguyen Xuan Hoang wrote:

quoted

I have seen a lot of discussions about MMU on MPC823,

There are no MMU or cache related problems on any of the MPC8xx
processors and stable versions of Linux.  These are just people
discussing the challenges of building custom boards and making
source code changes.

There are dozens of people shipping products with Linux running on
these processors.  You seldom hear from people that are happy and
successful.


      -- Dan

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