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Date: Tue, 29 Jun 2010 13:56:17 -0500
From: Scott Wood <scottwood@freescale.com>
To: Shawn Jin <shawnxjin@gmail.com>
Subject: Re: machine check in kernel for a mpc870 board
Message-ID: <20100629185617.GA24285@schlenkerla.am.freescale.net>
References: <AANLkTinA2ghLxBU41aFAsLM1oXQ8HMASx1eQMDVvi56n@mail.gmail.com>
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On Tue, Jun 29, 2010 at 12:59:56AM -0700, Shawn Jin wrote:
> I'm porting a mpc870 board to the powerpc arch. The base is the
> adder-875 board. My first try to boot the cuImage.my870 is
> experiencing a machine check. And I have no clue where to look. Any
> help?
> 
> => bootm 1000000
> ## Booting image at 01000000 ...
>    Image Name:   Linux-2.6.33.5
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    747319 Bytes = 729.8 kB
>    Load Address: 00400000
>    Entry Point:  004004d4
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> Bus Fault @ 0x00404c40, fixup 0x00000000
> Machine check in kernel mode.
> Caused by (from msr): regs 07d1cb80 Unknown values in msr
> NIP: 00404C40 XER: 00000000 LR: 00404C24 REGS: 07d1cb80 TRAP: 0200 DAR: 00000001
> MSR: 00001002 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

Can you look up the source line/instruction corresponding to 0x404c40, in
the wrapper ELF file?

-Scott