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RE: O2 RM7000 Issues

To: "'Ralf Baechle'" <ralf@linux-mips.org>, Steve Graham <stgraham2000@yahoo.com>
Subject: RE: O2 RM7000 Issues
From: Sagar Borikar <Sagar_Borikar@pmc-sierra.com>
Date: Thu, 20 Sep 2007 23:27:18 -0700
Cc: linux-mips@linux-mips.org
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
rm7k_wait_irqoff patch doesn't seem to improve the things for illegal 
instructions for E9k core.
But many customers have reported that they do get illegal instruction when 
ICACHE_REFILLS_WORKAROUND_WAR is not enabled.

Thanks
Sagar



-----Original Message-----
From: linux-mips-bounce@linux-mips.org 
[mailto:linux-mips-bounce@linux-mips.org] On Behalf Of Ralf Baechle
Sent: Tuesday, September 18, 2007 2:23 PM
To: Steve Graham
Cc: linux-mips@linux-mips.org
Subject: Re: O2 RM7000 Issues

On Mon, Sep 17, 2007 at 04:04:52PM -0700, Steve Graham wrote:

> I am having a similar problem where complicated bash scripts on boot 
> randomly throw SIGILL.  I am running on a PMC MSP8510 platform - E9000 
> core.  I have applied the patch to "war.h" mentioned in this thread 
> and that did greatly reduce the number of occurences of this problem 
> but has not fixed it.  I was getting at least 2 illegal instructions 
> every boot and now I can boot without any problems about 90% of the time.
> 
> Does the patch you mention below apply to the E9000 core as well?

Not to my knowledge - but I'm lacking any halfwayrecent errata information for 
the RM9000 series, maybe somebody from PMC can jump in?

  Ralf

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