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Re: SB1250 locking up in init on current 2.6.16 kernel

To: Larry Stefani <lstefani@yahoo.com>
Subject: Re: SB1250 locking up in init on current 2.6.16 kernel
From: Thiemo Seufer <ths@networkno.de>
Date: Tue, 25 Mar 2008 15:37:47 +0000
Cc: linux-mips@linux-mips.org
In-reply-to: <15031.81072.qm@web38802.mail.mud.yahoo.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <15031.81072.qm@web38802.mail.mud.yahoo.com>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.17+20080114 (2008-01-14)
Larry Stefani wrote:
> Hi,
> 
> I've been trying to upgrade from 2.6.16.18 to
> 2.6.16.60, but am seeing a hard lockup right before
> "INIT: version 2.78 booting" on my SB1250-based board.
> 
> I found a related discussion on the Debian mailing
> list:
> 
> http://groups.google.com/group/linux.debian.bugs.dist/browse_thread/thread/b7159ee25106c7f9
> 
> However, after applying Thiemo's patch to mark pages
> tainted by PIO IDE as dirty, the lockup still occurs.
> 
> I narrowed the file changes to
> 
>      arch/mips/mm/c-sb1.c
>      arch/mips/mm/cache.c
>      arch/mips/mm/init.c
>      include/asm-mips/cache-flush.h
>      include/asm-mips/page.h
> 
> between 2.6.16.27 and 2.6.16.29.  There was no
> 2.6.16.28 tarball posted on linux-mips.org, so I
> basically brought .27 to .29 until I found the
> offending files.

Please learn about git bisect (git-bisect start; git-bisect good;
git-bisect bad) and use it to isolate the offending commit.


Thiemo

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