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From: Kumar Gala <galak@kernel.crashing.org>
Subject: Re: 2.6.23-rc3 boot hang on MPC8641D
Date: Wed, 12 Sep 2007 23:25:10 -0500
To: sivaji <rameshmrm@gmail.com>
Cc: linuxppc-dev@ozlabs.org
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On Sep 12, 2007, at 11:18 PM, sivaji wrote:

>
> Hi,
>         I am try to boot the 2.6.23-rc3 kernel to my custom board  
> based on
> 8641D Processor. After uncompressing the kernel it was hang. I got the
> following messages.
>
>    Uncompressing Kernel Image ... OK
>    Booting using flat device tree at 0x600000.
>
>        Then i tried to debug with GDB. In my source path i given  
> the command
> ${CROSS_COMPILE}gdb vmlinux, I got GDB Prompt after i tried to set the
> breakpoint at start_kernel. I got follwing messages
>
> gdb) b start_kernel
> Cannot access memory at address 0xc02b44ec

how are you connecting gdb to the board?

do you have a JTAG debugger connected to the board?

- k