From owner-freebsd-stable@FreeBSD.ORG Wed Jul 19 05:30:32 2006 Return-Path: X-Original-To: freebsd-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 C8F5016A4E1; Wed, 19 Jul 2006 05:30:32 +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 ED66B43D55; Wed, 19 Jul 2006 05:30:31 +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 k6J5UP9k021091 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 19 Jul 2006 08:30:25 +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 k6J5UPfV057948; Wed, 19 Jul 2006 08:30:25 +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 k6J5UN7k057947; Wed, 19 Jul 2006 08:30:23 +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: Wed, 19 Jul 2006 08:30:23 +0300 From: Kostik Belousov To: User Freebsd Message-ID: <20060719053023.GG1464@deviant.kiev.zoral.com.ua> References: <20060705100403.Y80381@fledge.watson.org> <20060705234514.I70011@fledge.watson.org> <20060715000351.U1799@ganymede.hub.org> <20060715035308.GJ32624@deviant.kiev.zoral.com.ua> <20060718074804.W1799@ganymede.hub.org> <20060719012941.H1799@ganymede.hub.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="RDS4xtyBfx+7DiaI" Content-Disposition: inline In-Reply-To: <20060719012941.H1799@ganymede.hub.org> User-Agent: Mutt/1.4.2.1i X-Virus-Scanned: ClamAV version 0.88.2, clamav-milter version 0.88.2 on fw.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=0.4 required=5.0 tests=ALL_TRUSTED, DNS_FROM_RFC_ABUSE,SPF_NEUTRAL autolearn=no version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on fw.zoral.com.ua Cc: Robert Watson , freebsd-stable@freebsd.org Subject: Re: file system deadlock - the whole story? 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: Wed, 19 Jul 2006 05:30:33 -0000 --RDS4xtyBfx+7DiaI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jul 19, 2006 at 01:31:17AM -0300, User Freebsd wrote: >=20 > Kostik/Robert ... does this provide enough (any?) information concerning= =20 > the deadlock situation(s) that are being reported? is there anything els= e=20 > I should do the next time it happens? >=20 > I tried to submit a GnATs report on this also, but fear that the=20 > attachment was a wee bit too big :( >=20 Marc, thank you for the report. It does contain useful information, I'm looking into it. I see at least one obvius deadlock (you shell becomes unresponible when you tried to make auto-completion, right ?). > On Tue, 18 Jul 2006, User Freebsd wrote: >=20 > > > >'k, had a bunch of fun tonight, but one of the results is that I was abl= e=20 > >to achieve file system deadlock, or so it appears ... > > > >Using the following from DDB: > > > >set $lines=3D0 > >show pcpu > >show allpcpu > >ps > >trace > >alltrace > >show locks > >show alllocks > >show uma > >show malloc > >show lockedvnods > >call doadump > > > >I've been able to produce the attached output, as well as have a core du= mp=20 > >that can hopefully be used to gather any that I may have missed this tim= e=20 > >*cross fingers* >=20 > ---- > Marc G. Fournier Hub.Org Networking Services (http://www.hub.or= g) > Email . scrappy@hub.org MSN . scrappy@hub.org > Yahoo . yscrappy Skype: hub.org ICQ . 7615664 --RDS4xtyBfx+7DiaI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFEvcNvC3+MBN1Mb4gRAvOjAKDQ2geVuR4DwtbUq7mPMZMAuQuEKwCgsiv4 Nj8vJIKbw5jTa4dQihByb+E= =FXfY -----END PGP SIGNATURE----- --RDS4xtyBfx+7DiaI--