From owner-freebsd-stable@FreeBSD.ORG  Thu May 27 17:31:07 2004
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 783BE16A4CE; Thu, 27 May 2004 17:31:07 -0700 (PDT)
Received: from tomts10-srv.bellnexxia.net (tomts10.bellnexxia.net
	[209.226.175.54])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id D7A8F43D45; Thu, 27 May 2004 17:31:06 -0700 (PDT)
	(envelope-from dmagda@ee.ryerson.ca)
Received: from number6.magda.ca ([67.68.49.151])
	by tomts10-srv.bellnexxia.netESMTP
	<20040528003024.FXEZ24047.tomts10-srv.bellnexxia.net@number6.magda.ca>;
	Thu, 27 May 2004 20:30:24 -0400
Received: from [192.168.1.132] (gandalf.magda.ca [192.168.1.132])
	by number6.magda.ca (8.12.11/8.12.11) with ESMTP id i4S0UOKw000258;
	Thu, 27 May 2004 20:30:25 -0400 (EDT)
	(envelope-from dmagda@ee.ryerson.ca)
In-Reply-To: <Pine.NEB.3.96L.1040527194447.74482A-100000@fledge.watson.org>
References: <Pine.NEB.3.96L.1040527194447.74482A-100000@fledge.watson.org>
Mime-Version: 1.0 (Apple Message framework v613)
Content-Type: text/plain; charset=US-ASCII; format=flowed
Message-Id: <3F18ECCE-B03E-11D8-A04B-000A95B96FF8@ee.ryerson.ca>
Content-Transfer-Encoding: 7bit
From: David Magda <dmagda@ee.ryerson.ca>
Date: Thu, 27 May 2004 20:30:40 -0400
To: Robert Watson <rwatson@freebsd.org>
X-Mailer: Apple Mail (2.613)
cc: stable@freebsd.org
Subject: Re: how to interpret crash?
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
Reply-To: David Magda <dmagda@ee.ryerson.ca>
List-Id: Production branch of FreeBSD source code
	<freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 28 May 2004 00:31:07 -0000


On May 27, 2004, at 19:55, Robert Watson wrote:

> you need.  If you've cvsup'd and no longer have the source code for the
> old kernel, regardless of having debugging symbols, you're in a much 
> worse
> starting point for tracking down the problem.

I don't pretend to have the knowledge to actually fix a kernel issue. 
:> I would simply want to have a way to provide a useful backtrace for 
developers. Even if I cvsup'd I could always use CVSWeb to look at the 
previous revision.

> One important reason that the debugging kernel isn't kept around is 
> space
> considerations: in -CURRENT, a 5mb kernel will generally be 
> accompanied by

Yes, this is why I suggested a variable in make.conf with an .if 
statement in the Makefiles.

Searching through the the Makefiles: around line 193 in file 
sys/conf/kern.post.mk you have (from a 5.2.1-p7 system):

.if defined(DEBUG) && defined(INSTALL_DEBUG)
         ${INSTALL} -p -m 555 -o root -g wheel ${FULLKERNEL} 
${DESTDIR}${KODIR}
.else
         ${INSTALL} -p -m 555 -o root -g wheel ${KERNEL_KO} 
${DESTDIR}${KODIR}
.endif

Would changing it to the following work?

.if defined(DEBUG) && defined(INSTALL_DEBUG)
         ${INSTALL} -p -m 555 -o root -g wheel ${FULLKERNEL} 
${DESTDIR}${KODIR}
.else
         ${INSTALL} -p -m 555 -o root -g wheel ${KERNEL_KO} 
${DESTDIR}${KODIR}
.if defined(INST_KERNDEBUG)
         ${INSTALL} -p -m 555 -o root -g wheel ${FULLKERNEL} 
${DESTDIR}${KODIR}
.endif
.endif

I haven't checked how FULLKERNEL is defined.