From owner-freebsd-stable@FreeBSD.ORG Mon Jan 7 12:34:34 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 022A616A419 for ; Mon, 7 Jan 2008 12:34:34 +0000 (UTC) (envelope-from mharo@haro.us) Received: from hs-out-2122.google.com (hs-out-0708.google.com [64.233.178.251]) by mx1.freebsd.org (Postfix) with ESMTP id BF6D213C467 for ; Mon, 7 Jan 2008 12:34:33 +0000 (UTC) (envelope-from mharo@haro.us) Received: by hs-out-2122.google.com with SMTP id j58so6306656hsj.11 for ; Mon, 07 Jan 2008 04:34:33 -0800 (PST) Received: by 10.150.198.14 with SMTP id v14mr5368154ybf.134.1199707785207; Mon, 07 Jan 2008 04:09:45 -0800 (PST) Received: by 10.150.157.9 with HTTP; Mon, 7 Jan 2008 04:09:45 -0800 (PST) Message-ID: <4cd036390801070409l4d8f1cf9te86772f188f89dfe@mail.gmail.com> Date: Mon, 7 Jan 2008 04:09:45 -0800 From: "Michael Haro" Sender: mharo@haro.us To: "Pete French" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Google-Sender-Auth: e2307f7217016860 Cc: stable@freebsd.org Subject: Re: kmem_map too small under ZFS 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, 07 Jan 2008 12:34:34 -0000 I have the following in /boot/loader.conf and it seems to be doing well for me on FreeBSD-i386 with 1G RAM. vm.kmem_size="512M" vm.kmem_size_max="512M" vfs.zfs.prefetch_disable="1" vfs.zfs.arc_max="150M" kern.maxvnodes="400000" Most of these settings came from various mailing list postings. It's possible that some don't do anything useful, but I haven't had a zfs related panic since. On Jan 7, 2008 4:00 AM, Pete French wrote: > I have been experimenting with ZFS recently, and have been seeing the > occasional reboot with the above error. A quick google shows that this is > a known problem, but that it should go away if you increase kernel > memory. I have done this, but I am still seeing the problem - and not > uunder high load either. Is there anything else I can try to mitigate this ? > I am running 7.0-RC1 from Jan 3rd at the moment.. > > cheers, > > -pcf. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >