From owner-freebsd-stable@FreeBSD.ORG Mon Oct 2 19:23:53 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 B7AEF16A4DE for ; Mon, 2 Oct 2006 19:23:53 +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 C331143D7F for ; Mon, 2 Oct 2006 19:23:51 +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 EC8CEB80F for ; Mon, 2 Oct 2006 15:23:50 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: <20060922203654.GA65693@xor.obsecurity.org> References: <917B087C-5E13-4D7F-94FA-95CB0E5C1884@khera.org> <20060922190328.GA64849@xor.obsecurity.org> <555B84D2-520F-44D6-84D6-CF9CE7EE47C7@khera.org> <20060922203654.GA65693@xor.obsecurity.org> X-Gpgmail-State: !signed Content-Type: multipart/signed; micalg=sha1; boundary=Apple-Mail-11--1026280095; protocol="application/pkcs7-signature" Message-Id: <847DD3A5-D5DD-4D3E-B755-64B13D1DA506@khera.org> From: Vivek Khera Date: Mon, 2 Oct 2006 15:23:49 -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: Mon, 02 Oct 2006 19:23:53 -0000 --Apple-Mail-11--1026280095 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On Sep 22, 2006, at 4:36 PM, Kris Kennaway wrote: > Start by enabling INVARIANTS, INVARIANT_SUPPORT, DEBUG_LOCKS and > DEBUG_VFS_LOCKS, then run 'show lockedvnods' and 'alltrace' in DDB > (spammy, need that serial console), or at least trace the running > processes (show allpcpu) and those listed in lockedvnods. Then call > doadump and save the core+kernel.debug when you reboot. Well, what an exciting weekend we had! Three lockups/panics: two during running a dump (mksnap_ffs seems to be the culprit) and one running background fsck after rebooting from the prior crash. Details are posted at http://vivek.khera.org/scratch/crashlogs/ I have the crashdumps available to a kernel hacker upon request (i'd rather not make them generally available to the public...) --Apple-Mail-11--1026280095--