[U-Boot-Users] debug linux kernel hangs

Wolfgang Denk wd at denx.de
Thu Jun 23 02:11:40 CEST 2005


in message <021a01c57785$fc451a30$4500a8c0 at baniantealex> you wrote:
>  My box is MPC8247
> I use u-boot 1.1.1 to boot linux kernel 2.4.22, the bd_info are same in 

Both the versions of U-Boot and Linux kernel are very,  very  old.  I
strongly recommend to use more current versions of the software.

> 620             ppc_md.setup_arch();
> (gdb) n
> <<<<< long time wait and then press ctl + c.
> #0  0xc0007e4c in __delay () at time.c:427
> #1  0xc0015ae4 in panic (fmt=0x2bbbd "\001") at delay.h:42

So your kernel has paniced.

> and panic a message to me, isn't it?

Indeed. And what was the panic message? What was the contents of  the
log_buf area?

I'm afraid you will have to type the commands to display the contents
of the log buffer yourself - you did not give instructions how to log
in on your system.

See also http://www.denx.de/twiki/bin/view/DULG/LinuxPostMortemAnalysis

And by the way: this is a Linux problem, so all of this is completely
off topic on this list.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"'Tis true, 'tis pity, and pity 'tis 'tis true."
    - Poloniouius, in Willie the Shake's _Hamlet, Prince of Darkness_

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