From owner-freebsd-stable@FreeBSD.ORG Sun Dec 16 02:43:55 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5A36D16A418; Sun, 16 Dec 2007 02:43:55 +0000 (UTC) (envelope-from efinleywork@efinley.com) Received: from postmaster.etv.net (postmaster.etv.net [66.111.113.15]) by mx1.freebsd.org (Postfix) with ESMTP id 4CCDF13C457; Sun, 16 Dec 2007 02:43:55 +0000 (UTC) (envelope-from efinleywork@efinley.com) Received: from efinley04.etv.net ([74.214.237.51] helo=science3.efinley.com) by postmaster.etv.net with esmtpsa (TLSv1:RC4-MD5:128) (Exim 4.68 (FreeBSD)) (envelope-from ) id 1J3jTu-0003v4-Vj; Sat, 15 Dec 2007 19:43:55 -0700 From: Elliot Finley To: Jeremy Chadwick Date: Sat, 15 Dec 2007 19:43:55 -0700 Organization: Emery Telcom Message-ID: <8249m3pqc4qn9g2dt2got69m40hl77aslv@4ax.com> References: <20071215235810.GA81924@eos.sc1.parodius.com> In-Reply-To: <20071215235810.GA81924@eos.sc1.parodius.com> X-Mailer: Forte Agent 4.1/32.1088 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Cc: freebsd-stable@freebsd.org, User Questions Subject: Re: OS bug in taskq X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: efinleywork@efinley.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Dec 2007 02:43:55 -0000 On Sat, 15 Dec 2007 15:58:10 -0800, you wrote: >On Sat, Dec 15, 2007 at 01:03:14PM -0700, Elliot Finley wrote: >> I have: >> dumpdev=3D"AUTO" >> in /etc/rc.conf and: >> ...=20 >> in the kernel and I'm still unable to obtain a crash dump. Hopefully >> there is enough info in this email for a hacker to point me in the >> right direction to debug this. > >I can't help with the panic itself, but the reason for the inability to >obtain a crash dump is mentioned in a thread I started in November: > >http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/038069.h= tml > >The explanation of the problem was documented best by Doug Barton in >this thread (over at freebsd-rc@): > >http://lists.freebsd.org/pipermail/freebsd-rc/2007-November/001263.html In this thread it states: Short term fix is to disable swapping on the system long enough to get the dump, then reboot with swapping turned back on. how do I turn swapping off? I don't think I can just not mount it, because then it wouldn't exist for the dump. > >Open PR: > >http://www.freebsd.org/cgi/query-pr.cgi?pr=3D118255