From owner-freebsd-stable@FreeBSD.ORG Mon Nov 17 16:30:19 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EE6B11065673 for ; Mon, 17 Nov 2008 16:30:19 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (chello087206045082.chello.pl [87.206.45.82]) by mx1.freebsd.org (Postfix) with ESMTP id 420738FC16 for ; Mon, 17 Nov 2008 16:30:19 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 8BC1B4569A; Mon, 17 Nov 2008 16:58:44 +0100 (CET) Received: from localhost (ghf58.internetdsl.tpnet.pl [83.12.187.58]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id 481EF45684; Mon, 17 Nov 2008 16:58:38 +0100 (CET) Date: Mon, 17 Nov 2008 16:58:35 +0100 From: Pawel Jakub Dawidek To: d@delphij.net Message-ID: <20081117155835.GC2101@garage.freebsd.pl> References: <491CE71F.2020208@delphij.net> <491CE835.4050504@delphij.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OROCMA9jn6tkzFBc" Content-Disposition: inline In-Reply-To: <491CE835.4050504@delphij.net> User-Agent: Mutt/1.4.2.3i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 8.0-CURRENT i386 X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 Cc: FreeBSD Stable , Quake Lee Subject: Re: ZFS crashes on heavy threaded environment 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, 17 Nov 2008 16:30:20 -0000 --OROCMA9jn6tkzFBc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 13, 2008 at 06:53:41PM -0800, Xin LI wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 >=20 > Xin LI wrote: > > Hi, Pawel, > >=20 > > We can still reproduce the ZFS crash (threading+heavy I/O load) on a > > fresh 7.1-STABLE build, in a few minutes: > >=20 > > /usr/local/bin/iozone -M -e -+u -T -t 128 -S 4096 -L 64 -r 4k -s 30g -i > > 0 -i 1 -i 2 -i 8 -+p 70 -C > >=20 > > I have included a backtrace output from my colleague who has his hands > > on the test environment. Should there is more information necessary > > please let us know and we wish to provide help on this. >=20 > Further datapoint. The system used to run with untuned loader.conf, and > my colleague just reported that with the following loader.conf, the > problem can be triggered sooner: >=20 > vm.kmem_size_max=3D838860800 > vm.kmem_size_scale=3D"2" >=20 > The system is running FreeBSD/amd64 7.1-PRERELEASE equipped with 8GB of > RAM with GENERIC kernel. With new ZFS I get: Memory allocation failed:: Cannot allocate memory Is this expected? --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --OROCMA9jn6tkzFBc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFJIZSqForvXbEpPzQRAkT1AKDD/4FH7jqvcB6+FA1CoZorlaB2BQCfeVVl kMfwjVaTgb3KWzXzPKlVcG4= =1bhB -----END PGP SIGNATURE----- --OROCMA9jn6tkzFBc--