From owner-freebsd-current@FreeBSD.ORG Wed Mar 10 14:01:06 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4512616A4CE for ; Wed, 10 Mar 2004 14:01:06 -0800 (PST) Received: from tigra.ip.net.ua (tigra.ip.net.ua [82.193.96.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8332643D2D for ; Wed, 10 Mar 2004 14:01:05 -0800 (PST) (envelope-from ru@ip.net.ua) Received: from heffalump.office.ipnet (heffalump.ip.net.ua [82.193.96.213]) by tigra.ip.net.ua (8.12.10/8.12.9) with ESMTP id i2AM4ju0097890 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 11 Mar 2004 00:04:46 +0200 (EET) (envelope-from ru@ip.net.ua) Received: (from ru@localhost) by heffalump.office.ipnet (8.12.11/8.12.11) id i2AM15vn093414; Thu, 11 Mar 2004 00:01:05 +0200 (EET) (envelope-from ru) Date: Thu, 11 Mar 2004 00:01:05 +0200 From: Ruslan Ermilov To: Poul-Henning Kamp Message-ID: <20040310220105.GB93302@ip.net.ua> References: <34954.1078861189@critter.freebsd.dk> <20040310163013.GI90219@ip.net.ua> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="6sX45UoQRIJXqkqR" Content-Disposition: inline In-Reply-To: <20040310163013.GI90219@ip.net.ua> User-Agent: Mutt/1.5.6i X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: current@freebsd.org Subject: Re: MD(4)/vnode hangs resolved (?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Mar 2004 22:01:06 -0000 --6sX45UoQRIJXqkqR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 10, 2004 at 06:30:13PM +0200, Ruslan Ermilov wrote: > On Tue, Mar 09, 2004 at 08:39:49PM +0100, Poul-Henning Kamp wrote: > >=20 > > Those of you who have experienced that md(4) backed by vnodes hang your > > systems, please try this patch: > >=20 > > http://phk.freebsd.dk/patch/md.patch > >=20 > [...] > > This solves the case where the system get stuck in "wdrain" because > > a md(4)/vnode device is relatively large compared to the buffer cache. > >=20 > I still have that script that causes the lockup. When I get back > home (should happen in less than an hour), I will give it a shot > and let you know. Thanks for tracking it down, "make release" on > IA-64 will be grateful too! ;) >=20 Hmm. I tried to reproduce the deadlock today on my fresh 5.2-CURRENT laptop without your patch, using that script from "make release", but to no avail. Still, I hope it fixes the issue. Thanks again for looking into it! Cheers, --=20 Ruslan Ermilov FreeBSD committer ru@FreeBSD.org --6sX45UoQRIJXqkqR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAT5AhUkv4P6juNwoRAh51AJ9SiM5ibUorC8VKau6BfaM+HlTStACeODSn MmmVleOp+99KmNuwDHEpl10= =a14h -----END PGP SIGNATURE----- --6sX45UoQRIJXqkqR--