From owner-freebsd-hackers  Sun Apr 21 19: 9:12 2002
Delivered-To: freebsd-hackers@freebsd.org
Received: from yello.shallow.net (yello.shallow.net [203.18.243.120])
	by hub.freebsd.org (Postfix) with ESMTP id B498137B405
	for <freebsd-hackers@FreeBSD.org>; Sun, 21 Apr 2002 19:09:09 -0700 (PDT)
Received: by yello.shallow.net (Postfix, from userid 1001)
	id 9D5D92A6D; Mon, 22 Apr 2002 12:09:02 +1000 (EST)
Date: Mon, 22 Apr 2002 12:09:02 +1000
From: Joshua Goodall <joshua@roughtrade.net>
To: freebsd-hackers@FreeBSD.org
Subject: kernel backtrace of sleeping processes
Message-ID: <20020422020902.GB86692@roughtrade.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.3.28i
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-hackers.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-hackers>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-hackers>
X-Loop: FreeBSD.ORG

In a remote kgdb, I have struct proc * for several processes that
are sleeping and I want the kernel backtraces for them. To illustrate:

(kgdb) set var $p201 = allproc.lh_first->p_list.le_next->p_list.le_next
(kgdb) print $p201->p_pid
$12 = 201
(kgdb) print $p201->p_xxthread.td_wmesg
$13 = 0xc0247174 "select"

Now I want a (kernel) backtrace on this; given that I have $p201,
how can I select the appropriate stack frame?

(recent -current on i386)

Joshua

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message