Kernel debugging question

Greg 'groggy' Lehey grog at
Wed Apr 21 19:16:13 PDT 2004

[Format recovered--see]

Quoted text wrapped incorrectly.

On Monday, 19 April 2004 at 14:46:57 +0200, Jorn Argelo wrote:
> On Monday, 19 April 2004 at 12:56:56 +0200, Jorn Argelo wrote:
>> [snip]
>>>>> #0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
>>>>> (kgdb)
>>>> You want at least a backtrace.
>>> How do I do that? I'm sorry, but I've never done a kernel debug or
>>> anything.
>> That's why I pointed you to the documentation explaining what to do:
> Sorry, I didn't see that in your previous mail.

Looks like you didn't see this either:

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> I must say your documentation looks very well, though it goes far
> above my level.  (Wouldn't be too healthy for a 17 year old kid to
> do some kernel debugging already, no?)

Younger people have done it.  Our record for the youngest committer is
something like 14.

> I currently have a backtrace, a chunk of source code which probably
> causes the panic, and some register output. I haven't read all 99
> pages of your documentation, but hopefully it'll be enough. Send me
> a mail when you have time, and I'll mail you the contents. (The
> source code is quite long, so posting everything in a single mail is
> not a good idea). I can drop a mail at the current folks as well, if
> you prefer that.

Put it on the -questions list for now.  It could be instructive.

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