MPC8245 custom board, Linux 2.4 kernel hangs after uncompressing

Atit_Shah Atit_Shah at
Thu Apr 21 18:45:33 EST 2005

I forgot to mention this...u should do a soft reset. If you go about powering off and on your board your buffer will be flushed. But for a soft reset the contents will be retained.

-----Original Message-----
From: Sam Song [mailto:samlinuxppc at] 
Sent: Thursday, April 21, 2005 12:49 PM
To: Atit_Shah; kishorekrd at
Cc: linuxppc-embedded at
Subject: RE: MPC8245 custom board, Linux 2.4 kernel hangs after uncompressing 

Atit_Shah <Atit_Shah at> wrote:
> 1. Check your log buffer...your console may not be
> initialized yet so all your printk are logged at a 
> particular memory location. Checkout the
> file in the Linux folder for "log_buf".
> The address that you have there subtract it with 
> the kernel base address. Then in view your
> memory at that location. We used U-Boot so we gave
> the command
> 	md <log_buff address>

Interesting to me as well. I also have such a similar
problem. But I wanna to know how I can return to 
u-boot with software workaround after kernel hanging.
At least, I must power-off and power-on my target to
get back to u-boot console. If so, the last kernel 
printk message would lost IMHO.



P.S. Atit_Shah, if possibel, pls set your subscribing
setting  "...daily digest" as "no" to avoid reply
inconvenience on the title:)

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