[CentOS] How do I debug the kernel?

Thu Mar 22 21:14:22 UTC 2007
Mark Hull-Richter <mhull-richter at datallegro.com>

> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> Behalf Of Rodrigo Barbosa
> Sent: Thursday, March 22, 2007 1:34 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] How do I debug the kernel?
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On Thu, Mar 22, 2007 at 04:25:41PM -0400, Lists wrote:
> > On Tue, 6 Mar 2007, Rodrigo Barbosa wrote:
> > >
> > >Using gdb to debug the kernel is not an easy trick. You will need
> > >a kgdb patch for the kernel, and 2 computers. 1 for running the
kernel,
> > >and one for the debuger. These computers should be connected using
a
> > >serial (RS232) cable.
> > >
> > Would VMWare let you run the kernel you're debugging in a VM and
watch
> it
> > from the host?
> 
> That is a very good question. Last time I used kgdb, it was done using
a
> serial (RS232) cable. These days, I really don't know.
> 

It can be done on certain processors, but I don't have one of them - the
Pentium-D has the necessary 64 bit capability, but this is a mere P-4 -
no such lock (thought of that! :-).