From owner-freebsd-stable@FreeBSD.ORG Mon Feb 7 09:03:49 2011 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 E632D106564A for ; Mon, 7 Feb 2011 09:03:49 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta02.emeryville.ca.mail.comcast.net (qmta02.emeryville.ca.mail.comcast.net [76.96.30.24]) by mx1.freebsd.org (Postfix) with ESMTP id C59CF8FC08 for ; Mon, 7 Feb 2011 09:03:49 +0000 (UTC) Received: from omta11.emeryville.ca.mail.comcast.net ([76.96.30.36]) by qmta02.emeryville.ca.mail.comcast.net with comcast id 4x351g0030mlR8UA2x3pZF; Mon, 07 Feb 2011 09:03:49 +0000 Received: from koitsu.dyndns.org ([98.248.34.134]) by omta11.emeryville.ca.mail.comcast.net with comcast id 4x3n1g00C2tehsa8Xx3ow4; Mon, 07 Feb 2011 09:03:48 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id BA49D9B422; Mon, 7 Feb 2011 01:03:47 -0800 (PST) Date: Mon, 7 Feb 2011 01:03:47 -0800 From: Jeremy Chadwick To: Zaphod Beeblebrox Message-ID: <20110207090347.GB20545@icarus.home.lan> References: <1297026074.23922.8.camel@ubuntu> <20110207045501.GA15568@icarus.home.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Greg Bonett , freebsd-stable Subject: Re: 8.1 amd64 lockup (maybe zfs or disk related) 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 Feb 2011 09:03:50 -0000 On Mon, Feb 07, 2011 at 02:50:42AM -0500, Zaphod Beeblebrox wrote: > On Sun, Feb 6, 2011 at 11:55 PM, Jeremy Chadwick > wrote: > > > Given that you're running 8.1-RELEASE, what sort of ZFS tunings are you > > using in /boot/loader.conf?  Tuning is required on this version > > I haven't seen any new tuning recommendations. Has the tuning > required on an 8G amd64 platform changed from 8.0 to 8.1? They're discussed practically on a monthly basis on the mailing lists (either freebsd-fs or freebsd-stable). Keeping track of them is almost impossible at this point, which is also probably why the Wiki is outdated. See my other follow-up post to the OP regarding what most of the tunings should be. On an 8.0 system, there may be some tunings I listed off that won't work (loader(8) will complain "no such tunable" and won't boot). I think the UMA tunable is one of those. Please don't ask me "how was I supposed to know about any of this?" -- basically folks are ""expected"" to follow every single CVS or SVN commit to the FreeBSD tag you track/use, and are expected to read the diffs when there's a commit and "figure it out themselves". The release notes between 8.x and 8.x+1 don't disclose tunable changes either. If you don't like this model/approach, there are appropriate channels to send your complaints through -- but I myself simply gave up. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB |