From owner-freebsd-stable@FreeBSD.ORG Fri Sep 22 20:24:43 2006 Return-Path: X-Original-To: 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 4400616A403 for ; Fri, 22 Sep 2006 20:24:43 +0000 (UTC) (envelope-from vivek@khera.org) Received: from yertle.kcilink.com (yertle.kcilink.com [65.205.34.180]) by mx1.FreeBSD.org (Postfix) with ESMTP id E2F4443D49 for ; Fri, 22 Sep 2006 20:24:42 +0000 (GMT) (envelope-from vivek@khera.org) Received: from [192.168.7.103] (host-103.int.kcilink.com [192.168.7.103]) by yertle.kcilink.com (Postfix) with ESMTP id E4509B81E for ; Fri, 22 Sep 2006 16:24:41 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: <20060922190328.GA64849@xor.obsecurity.org> References: <917B087C-5E13-4D7F-94FA-95CB0E5C1884@khera.org> <20060922190328.GA64849@xor.obsecurity.org> Content-Type: multipart/signed; micalg=sha1; boundary=Apple-Mail-11-260854879; protocol="application/pkcs7-signature" Message-Id: <555B84D2-520F-44D6-84D6-CF9CE7EE47C7@khera.org> From: Vivek Khera Date: Fri, 22 Sep 2006 16:24:41 -0400 To: stable@freebsd.org X-Mailer: Apple Mail (2.752.2) X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Re: ffs snapshot lockup X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Sep 2006 20:24:43 -0000 --Apple-Mail-11-260854879 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On Sep 22, 2006, at 3:03 PM, Kris Kennaway wrote: >> I know this is very un-useful as a bug report, but I'm putting this >> out in case anyone else has noticed this. It has never happened to >> us before when we were running 5.4 and then 6.1 on this box. Nothing >> else changed on the system during this time. > > Yep, we'd need additional debugging to proceed. How does one debug a system where the disk sub-system is frozen? I have serial console with DDB/KDB built into the kernel and debugging symbols too. Is that the only option here? We're gonna try the full level 0 backup again monday and if it locks up I'll try to figure it out, but could use some hints as to where to poke in the kernel. --Apple-Mail-11-260854879--