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Re: Kernel crash in 2.6.32.6 / bcm1480 with 16k page size

To: Guenter Roeck <guenter.roeck@ericsson.com>
Subject: Re: Kernel crash in 2.6.32.6 / bcm1480 with 16k page size
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 29 Jan 2010 14:24:07 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <20100128155514.GA31611@ericsson.com>
References: <20100128155514.GA31611@ericsson.com>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.20 (2009-08-17)
On Thu, Jan 28, 2010 at 07:55:14AM -0800, Guenter Roeck wrote:
> 
> I get the following kernel crash when running a 2.6.32.6 kernel on a bcm1480 
> cpu.
> It only happens if I configure a page size of 16k or 64k; 4k page size is 
> fine.
> 
> A similar problem was recently fixed for ppc. It turned out to be a problem 
> in ppc
> specific memory management code, so that fix won't help here.
> 
> Has anyone else seen this before ? Any idea where to start looking for the 
> problem ?

Supposedly this was working for SB1.  I suggest you find an older kernel
version that works for your with 16k pages then use git bisect to find
the problem.

  Ralf

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