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Re: [Bug report] Got bus error when loading kernel module on SB1250 Rev

To: Yang Shi <yang.shi@windriver.com>
Subject: Re: [Bug report] Got bus error when loading kernel module on SB1250 Rev B2 board with 64 bit kernel
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 14 May 2010 19:02:11 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <4BED25F3.4010809@windriver.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <4BED25F3.4010809@windriver.com>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.20 (2009-08-17)
On Fri, May 14, 2010 at 06:29:07PM +0800, Yang Shi wrote:

> I'm running 2.6.34-rc7 mainline kernel on SB1250 (Rev B2) board. And, I
> use the default sb1250 kernel config (sb1250-swarm_defconfig). So, 64
> bit kernel is used. During kernel loading module got bus error, see
> below log:

Whops.  Fixes which were supposed to handle exactly this problem went
upstream for 2.6.34-rc3 and were tested successfully by others on their
systems.

I wonder if in arch/mips/sibyte/sb1250/setup.c you can instrument
the function sb1250_m3_workaround_needed() and print the values of
soc_type, soc_pass and the retun value of that function.  Then let's take
it from there.

  Ralf

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