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Date: Thu, 01 Sep 2005 16:30:09 +0200
From: Sylvain Munaut <tnt@246tNt.com>
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To: John F Davis <johndavi@us.ibm.com>
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Cc: linuxppc-embedded@ozlabs.org
Subject: Re: linux hangs after uncompress kernel image
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Or take the address of the __log_buf symbol then after the crash,
reboot and dump the buffer there, so you can see erly printk (before
console is up).

	Sylvain


John F Davis wrote:
> 
> Hello Lily,
> 
> Maybe you could try to put in some printk's and see which line of code
> generates an exception.
> 
> JD
> 
> 
> *"lily" <lichanjuan04@st.lzu.edu.cn>*
> Sent by: linuxppc-embedded-bounces@ozlabs.org
> 
> 09/01/2005 05:55 AM
> 
> 	
> To
> 	<linuxppc-embedded@ozlabs.org>
> cc
> 	
> Subject
> 	linux hangs after uncompress kernel image
> 
> 
> 	
> 
> 
> 
> 
> 
> i work on octobusHPPC405EP board . when I try to bring up the kernel i
> meet the problem that linux hangs after uncompressing image:
>  
> U-Boot 1.1.2 (Jun  3 2005 - 12:05:48)
>  
> CPU:   IBM PowerPC 405EP Rev. B at 133.333 MHz (PLB=133, OPB=66, EBC=33 MHz)
>       IIC Boot EEPROM disabled
>       PCI async ext clock used, internal PCI arbiter enabled
>       16 kB I-Cache 16 kB D-Cache
> OCTOBUS Board: ### No HW ID - assuming OCTOBUS HPPC405
> I2C:   ready
> DRAM:  32 MB
> FLASH:  4 MB
> =>iminfo 1000000
> ## Checking Image at 01000000 ...
>   Image Name:   Linux-2.4.21-pre5
>   Created:      2005-08-03  17:45:20 UTC
>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>   Data Size:    548345 Bytes = 535.5 kB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
> => bootm 1000000
> ## Booting image at 01000000 ...
>   Image Name:   Linux-2.4.21-pre5
>   Created:      2005-08-03  17:45:20 UTC
>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>   Data Size:    548345 Bytes = 535.5 kB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
>   Uncompressing Kernel Image ... OK
> 
> <hang>
> what's the problem?? _______________________________________________
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