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From: Keith Owens <kaos@melbourne.sgi.com>
To: Paul Schutte <paul@it.up.ac.za>
cc: XFS mailing list <linux-xfs@oss.sgi.com>
Subject: Re: Kernel hangs with mongo.pl benchmark. 
In-reply-to: Your message of "Fri, 31 Aug 2001 18:32:27 +0200."
             <3B8FBC1B.4AB635C3@it.up.ac.za> 
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On Fri, 31 Aug 2001 18:32:27 +0200, 
Paul Schutte <paul@it.up.ac.za> wrote:
>I have not worked with kdb before. I scanned the mailing lists and FAQ on
>kdb.
>I am sorry if this was mentioned earlier, but I could'nt find a way to
>search the archives.
>
>I am in the debugger by pressing Pause.
>
>What info must I gather for you guys and how do I capture it ?

Start with the bt command, for backtrace.  Capturing debugger output is
difficult because the machine is dead and cannot write to disk.  The
best way is to build the kernel with a serial console and debug over
that.  Recommended reading:

linux/Documentation/serial-console.txt
man linux/Documentation/kdb/kdb.mm
man linux/Documentation/kdb/kdb_bt.man