From owner-freebsd-current@FreeBSD.ORG  Wed Sep 17 16:47:17 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9AB0916A4BF
	for <current@freebsd.org>; Wed, 17 Sep 2003 16:47:17 -0700 (PDT)
Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4E70643FE9
	for <current@freebsd.org>; Wed, 17 Sep 2003 16:47:16 -0700 (PDT)
	(envelope-from dwhite@gumbysoft.com)
Received: by carver.gumbysoft.com (Postfix, from userid 1000)
	id 3EEED72DA3; Wed, 17 Sep 2003 16:47:16 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1])
	by carver.gumbysoft.com (Postfix) with ESMTP
	id 3C59772DA2; Wed, 17 Sep 2003 16:47:16 -0700 (PDT)
Date: Wed, 17 Sep 2003 16:47:16 -0700 (PDT)
From: Doug White <dwhite@gumbysoft.com>
To: Morten Rodal <morten@rodal.no>
In-Reply-To: <20030916062941.GA813@slurp.rodal.no>
Message-ID: <20030917164614.Y25425@carver.gumbysoft.com>
References: <20030912065458.GA604@atlantis.rodal.no>
	<20030916062941.GA813@slurp.rodal.no>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: current@freebsd.org
Subject: Re: panic: absolutely cannot call smp_ipi_shootdown with interrupts
 already disabled
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 17 Sep 2003 23:47:17 -0000

On Tue, 16 Sep 2003, Morten Rodal wrote:

> So this brings up the question, is there a known problem with
> debugging multi-threaded applications (which use libkse) that can
> cause a panic?  I will bring home my laptop, and will be able to use a
> serial debugger if that would help anyone willing to trace this down.

"Probably" :)

This came up at the developer summit.  We do need to upgrade/make
significant changes to gdb for it to understand threaded debugging.  The
panics might be interesting as it might be tickling other issues, but
before we can really debug threaded apps we need a new gdb.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org