From owner-freebsd-stable@FreeBSD.ORG Sat Mar 12 02:51:22 2005 Return-Path: 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 3DC3B16A4CE for ; Sat, 12 Mar 2005 02:51:22 +0000 (GMT) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1B18143D48 for ; Sat, 12 Mar 2005 02:51:22 +0000 (GMT) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id 1475472DD4; Fri, 11 Mar 2005 18:51:22 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id 0F2BF72DCB; Fri, 11 Mar 2005 18:51:22 -0800 (PST) Date: Fri, 11 Mar 2005 18:51:22 -0800 (PST) From: Doug White To: Josh Tolbert In-Reply-To: <20050311080312.GB92349@just.puresimplicity.net> Message-ID: <20050311184946.P72922@carver.gumbysoft.com> References: <20050311025601.GA90408@just.puresimplicity.net> <20050311080312.GB92349@just.puresimplicity.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-stable@freebsd.org Subject: Re: Repeated panics...Suspect USB issues X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Mar 2005 02:51:22 -0000 On Fri, 11 Mar 2005, Josh Tolbert wrote: > > A backtrace would be nice. See the developer's handbook on kernel > > debugging for details. > > I'm trying to get a backtrace. I've built a kernel with all the right > bits, set up dumpdir and dumpdev in /etc/rc.conf, etc...Apparently > savecore doesn't like writing to the swap partition (/dev/ar0s1b). I can > get to the ddb promp, obtain a trace, panic the machine, etc...But I > don't think I can obtain a good core without putting another hard drive > in the machine, which isn't going to happen till sometime next week...Is > there anything I can provide from the ddb prompt? savecore *reads* from the swap partition, not *writes* to it. It will drop the recovered core in /var/crash unless you tell it otherwise. The developer's handbook has a command list for ddb. "trace" is generally what we want. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org