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Date: Mon, 06 Aug 2007 10:52:38 -0500
From: Scott Wood <scottwood@freescale.com>
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To: poorbeyond <poorbeyond@163.com>
Subject: Re: my cpu is MPC860, kernel version is 2.6.20.14,	the kernel start
	info in the mail. why does the kernel panic?
References: <200708051854252184131@163.com>
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poorbeyond wrote:
> Linux version 2.6.20.14 (root@localhost.localdomain) (gcc version 4.0.0 (DENX ELDK 4.0 4.0.0)) #1 PREEMPT Sun Aug 5 18:23:18 CST 2007

It wouldn't surprise me if the 8xx code has issues with PREEMPT; try 
turning it off for now.

> 
> ------------[ cut here ]------------
> 
> Badness at 00200880 [verbose debug info unavailable]
> 
> Call Trace:
> 
> [00285E60] [00008E24]  (unreliable)
> 
> [00285E90] [000EBA14] 
> 
> [00285EA0] [00003D88] 

Enable verbose debug messages and kallsyms for more useful output.

Are you running arch/ppc or arch/powerpc?

-Scott