kernel debugging tool

[Heiko J Schick]

Hello,

you can also use XMON or KDB, which are kernel debuggers.
XMON is normally included in PowerPC kernels. I think
for KDB you have to patch your kernel, but that could be
wrong.

If you dump out the crash instruction and compare it
with the assembler output of your GCC, you can find
fast the source code line which caused the kernel panic.

Perhaps the following links helps, too:
http://urbanmyth.org/linux/oops/
http://www-128.ibm.com/developerworks/library/l-kprobes.html?ca=dgr- 
lnxw42Kprobe
http://www-128.ibm.com/developerworks/linux/library/l-kdbug/

Sometimes also very useful, too. :)


On Jan 19, 2006, at 1:00 AM, Hyo Jung Song wrote:

>    WE are interested in Cell BE (broadband engine) Linux patch.  
> (found in
> http://www.bsc.es/projects/deepcomputing/linuxoncell/cbexdev.html)
>    We want to debug kernel sources sometimes. How can we do it?
>    I believe you guys debugged kernel source codes for CBE and you  
> used
>    some tools.
>    Could you please some tips for this? Thank you.
>
>
>
>    Hyo Jung Song
>    Senior Engineer
>    Samsung Electronics
>    tel. 82-2-3416-0355
>
> -----Original Message-----
> From: Cell Support [mailto:cell_support at bsc.es]
> Sent: Wednesday, January 18, 2006 11:27 PM
> To: hjsong at samsung.com
> Cc: cell_support at bsc.es
> Subject: Re: Fwd: kernel debugging tool
>
> Dear Hyo,
>
> we don't develop linux patches for Cell BE. We got them from public
> kernel mailing lists and post them to help
> people to built a kernel that works with Cell BE. This avoids  
> having to
> go through kernel mailing lists to
> find the correct patch files that fit a specific kernel release. Hope
> this helps people.
>
> We think you should post your question to a linux kernel mailing list.
> Regarding the ppc64 kernel development,
> the linuxppc64-dev at ozlabs.org is the right place
> (https://ozlabs.org/mailman/listinfo/linuxppc64-dev). But
> you can also sent this to the http://www.kernel.org mailing lists.
> Probable, kernel developers can help you
> because they are always debugging new their code.
>
> Hope this helps.
>
> Regards,
>
>> Sender : hjsong at samsung.com
>> Date   : 2006-01-17 10:13
>> Title  : kernel debugging tool
>>
>> Hi.
>>
>> WE are interested in CBE Linux patch.
>> We want to debug kernel sources sometimes. How can we do it?
>> I believe you guys debugged kernel source codes for CBE and you used
>> some tools.
>> Could you please some tips for this? Thank you.
>>
>>
>>
>> Hyo Jung Song
>> Senior Engineer
>> Samsung Electronics
>> tel. 82-2-3416-0355
>
>
>
> _______________________________________________
> Linuxppc64-dev mailing list
> Linuxppc64-dev at ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc64-dev