From owner-freebsd-stable@FreeBSD.ORG Thu May 6 16:14:24 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id DDEAD1065673; Thu, 6 May 2010 16:14:24 +0000 (UTC) (envelope-from ruben@verweg.com) Received: from erg.verweg.com (erg.verweg.com [94.142.245.8]) by mx1.freebsd.org (Postfix) with ESMTP id 5AE898FC08; Thu, 6 May 2010 16:14:23 +0000 (UTC) Received: from [192.168.1.27] (helium.xs4all.nl [83.163.52.241]) (authenticated bits=0) by erg.verweg.com (8.14.4/8.14.3) with ESMTP id o46G0YHi085469 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 6 May 2010 16:00:40 GMT (envelope-from ruben@verweg.com) X-Authentication-Warning: erg.verweg.com: Host helium.xs4all.nl [83.163.52.241] claimed to be [192.168.1.27] Mime-Version: 1.0 (Apple Message framework v1078) Content-Type: text/plain; charset=us-ascii From: Ruben van Staveren In-Reply-To: <20100505133302.GB1626@garage.freebsd.pl> Date: Thu, 6 May 2010 18:00:33 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <4BDEA86E.3050109@zirakzigil.org> <20100503110100.GA93137@icarus.home.lan> <4BDEC106.3040807@zirakzigil.org> <4BE110E3.8040902@zirakzigil.org> <20100505075242.GA57550@icarus.home.lan> <4BE13067.1060606@zirakzigil.org> <20100505133302.GB1626@garage.freebsd.pl> To: Pawel Jakub Dawidek X-Mailer: Apple Mail (2.1078) X-Spam-Status: No, score=2.5 required=5.0 tests=DATE_IN_FUTURE_12_24 autolearn=no version=3.3.1 X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on erg.verweg.com X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.3 (erg.verweg.com [94.142.245.8]); Thu, 06 May 2010 16:00:41 +0000 (UTC) Cc: freebsd-fs@freebsd.org, Giulio Ferro , freebsd-stable@freebsd.org, Jeremy Chadwick Subject: Re: Freebsd 8.0 kmem map too small 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: Thu, 06 May 2010 16:14:25 -0000 On 5 May 2010, at 15:33, Pawel Jakub Dawidek wrote: > Could you try to track down the commit that is causing your problems? > Could you try 8-STABLE kernel from before r206815? I do suspect something similar like that, and try to roll the kernel = back too. I was just fine with 8.0 with zfs-on-root till the last update when my = typical workload (portupgrade every now and then, make world) resulted = in kmem map too small panics and more sluggish performance (spending = most time in zio->io_cv) during pkgdb -F on a i386 system with 2gb = memory. I have 1gb memory sized amd64 vmware fusion vm's that run = without incident using the same workload. I had to bump KVA_PAGES to 512 and set vm.kmem_size=3D1024M to have this = i386 system stable again. Prior to that I tried to lower the arc cache = size but that resulted in a unresponsive system that I could not = diagnose. Regards, Ruben