From owner-freebsd-stable@FreeBSD.ORG Fri Nov 14 02:53:52 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 53DB0106567C; Fri, 14 Nov 2008 02:53:52 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id E781B8FC19; Fri, 14 Nov 2008 02:53:51 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [211.166.10.233]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id B91A528454; Fri, 14 Nov 2008 10:53:50 +0800 (CST) Received: from localhost (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id 83471EC5C01; Fri, 14 Nov 2008 10:53:50 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by localhost (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with ESMTP id t9DITqqOeppB; Fri, 14 Nov 2008 10:53:45 +0800 (CST) Received: from charlie.delphij.net (adsl-76-237-33-62.dsl.pltn13.sbcglobal.net [76.237.33.62]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 2BD33EC5B92; Fri, 14 Nov 2008 10:53:43 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=pGm3nIVMevtQabSi5+NpkcI2699vxH0F2e9YTwNW38y4I81AvtLH2emXm0gacVFWV ZzT1VucTYZkaDz3iOsl4w== Message-ID: <491CE835.4050504@delphij.net> Date: Thu, 13 Nov 2008 18:53:41 -0800 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.17 (X11/20080928) MIME-Version: 1.0 To: d@delphij.net References: <491CE71F.2020208@delphij.net> In-Reply-To: <491CE71F.2020208@delphij.net> X-Enigmail-Version: 0.95.7 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Pawel Jakub Dawidek , 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 Reply-To: d@delphij.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Nov 2008 02:53:52 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Xin LI wrote: > Hi, Pawel, > > We can still reproduce the ZFS crash (threading+heavy I/O load) on a > fresh 7.1-STABLE build, in a few minutes: > > /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 > > 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. 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: vm.kmem_size_max=838860800 vm.kmem_size_scale="2" The system is running FreeBSD/amd64 7.1-PRERELEASE equipped with 8GB of RAM with GENERIC kernel. Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkkc6DUACgkQi+vbBBjt66Cf7ACgjkeem1RLtDGCPF4MSvWY/1bz QvoAnjMIniOouszCIWl9JPLUn8KRuKlP =UchH -----END PGP SIGNATURE-----