From owner-freebsd-hackers@FreeBSD.ORG Thu Aug 17 12:25:29 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8ED4316A4E5 for ; Thu, 17 Aug 2006 12:25:29 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from fw.zoral.com.ua (fw.zoral.com.ua [213.186.206.134]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2FDFB43D45 for ; Thu, 17 Aug 2006 12:25:24 +0000 (GMT) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by fw.zoral.com.ua (8.13.4/8.13.4) with ESMTP id k7HCP4q7082976 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 17 Aug 2006 15:25:04 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.13.6/8.13.6) with ESMTP id k7HCP3px019114; Thu, 17 Aug 2006 15:25:03 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.13.6/8.13.6/Submit) id k7HCP2xJ019113; Thu, 17 Aug 2006 15:25:02 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 17 Aug 2006 15:25:02 +0300 From: Kostik Belousov To: Eric Anderson Message-ID: <20060817122502.GF1483@deviant.kiev.zoral.com.ua> References: <44E45C3F.6060901@centtech.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="6v9BRtpmy+umdQlo" Content-Disposition: inline In-Reply-To: <44E45C3F.6060901@centtech.com> User-Agent: Mutt/1.4.2.2i X-Virus-Scanned: ClamAV version 0.88.4, clamav-milter version 0.88.4 on fw.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=1.4 required=5.0 tests=SPF_NEUTRAL, UNPARSEABLE_RELAY autolearn=no version=3.1.4 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.1.4 (2006-07-25) on fw.zoral.com.ua Cc: FreeBSD Hackers Subject: Re: 6-STABLE snapshot (background fsck) lock-up X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Aug 2006 12:25:29 -0000 --6v9BRtpmy+umdQlo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 17, 2006 at 07:08:31AM -0500, Eric Anderson wrote: > I've seen this several times now, but this time I got a dump.=20 > Basically, the system comes up after unclean shutdown, throws a bunch of= =20 > filesystems into the background fsck list, and begins 60 seconds later.= =20 > After some amount of time, the system will lock up, presumably hung=20 > waiting on locks. >=20 > Here's some info: > lock type bufwait: EXCL (count 1) by thread 0xffffff0128812980 (pid 804)= =20 > lock type getblk: EXCL (count 1) by thread 0xffffff0128812980 (pid=20 > 804)Locked vnodes >=20 > 0xffffff01c5c9f000: tag ufs, type VREG > usecount 1, writecount 0, refcount 13656 mountedhere 0 > flags (VV_SYSTEM) > v_object 0xffffff01b09542a0 ref 0 pages 1691637 > lock type snaplk: EXCL (count 1) by thread 0xffffff0128812980 (pid= =20 > 804) > ino 4, on dev label/vol4 >=20 >=20 >=20 > How can I use kgdb to get more debugging information from this? >=20 Look at the http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel= debug-deadlocks.html for instructions for ddb. What is the date of the system checkout ? --6v9BRtpmy+umdQlo Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFE5GAdC3+MBN1Mb4gRAlDTAJ9Mo0wcfn2xSbjEgZgCNLtsMg87DQCgn4+g sjNTz9gvFphJxyxaeQKM6pA= =GLdy -----END PGP SIGNATURE----- --6v9BRtpmy+umdQlo--