From owner-freebsd-stable@FreeBSD.ORG Sun Nov 22 00:29:29 2009 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 8E8A61065670 for ; Sun, 22 Nov 2009 00:29:29 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA06.emeryville.ca.mail.comcast.net (qmta06.emeryville.ca.mail.comcast.net [76.96.30.56]) by mx1.freebsd.org (Postfix) with ESMTP id 717918FC0A for ; Sun, 22 Nov 2009 00:29:27 +0000 (UTC) Received: from OMTA20.emeryville.ca.mail.comcast.net ([76.96.30.87]) by QMTA06.emeryville.ca.mail.comcast.net with comcast id 80M71d0091smiN4A60VUPG; Sun, 22 Nov 2009 00:29:28 +0000 Received: from koitsu.dyndns.org ([98.248.46.159]) by OMTA20.emeryville.ca.mail.comcast.net with comcast id 80VT1d0073S48mS8g0VTxu; Sun, 22 Nov 2009 00:29:28 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 57EC81E3035; Sat, 21 Nov 2009 16:29:26 -0800 (PST) Date: Sat, 21 Nov 2009 16:29:26 -0800 From: Jeremy Chadwick To: freebsd-stable@freebsd.org Message-ID: <20091122002926.GA19628@icarus.home.lan> References: <4B066B13.1070006@freebsd.org> <4b07ac59.A2Afaf4X0IZlrgGU%perryh@pluto.rain.com> <57200BF94E69E54880C9BB1AF714BBCBA5722E@w2003s01.double-l.local> <20091121193643.GA14122@icarus.home.lan> <790a9fff0911211159k14920410g7a76cf6a292f0bae@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <790a9fff0911211159k14920410g7a76cf6a292f0bae@mail.gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Subject: Re: 7.2 dies in 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: Sun, 22 Nov 2009 00:29:29 -0000 On Sat, Nov 21, 2009 at 01:59:11PM -0600, Scot Hetzel wrote: > On Sat, Nov 21, 2009 at 1:36 PM, Jeremy Chadwick > wrote: > > > > On Sat, Nov 21, 2009 at 08:07:40PM +0100, Johan Hendriks wrote: > >> Randy Bush wrote: > >> > imiho, zfs can not be called production ready if it crashes if you > >> > do not stand on your left leg, put your right hand in the air, and > >> > burn some eye of newt. > >> > >> This is not a rant, but where do you read that on FreeBSD 7.2 ZFS has > >> been marked as production ready. > >> As far as i know, on FreeBSD 8.0 ZFS is called production ready. > >> > >> If you boot your system it probably tell you it is still experimental. > >> > >> Try running FreeBSD 7-Stable to get the latest ZFS version which on > >> FreeBSD is 13 > >> On 7.2 it is still at 6 (if I remember it right). > > > > RELENG_7 uses ZFS v13, RELENG_8 uses ZFS v18. > > > > RELENG_8 is still using ZFS v13. I meant to type ZFS v13 for RELENG_8. Fingers focused on 8 for some reason... Heh. :-) I'm not going to go on a rant talking about the recurring scenario that keeps happening on the mailing lists -- you know, where Person X says "well, use these loader.conf variables and it's stable", yet Person Y comes back with evidence that it's NOT stable. Everyone's workloads are different, but the panic is the same every time: kmem exhaustion. i386 with KVA_PAGES or amd64 -- happens on both. It's highly dependent upon workload and what the filesystem consists of (many files vs. fewer files but larger in size, etc.) > > RELENG_7 and RELENG_8 both, more or less, behave the same way with > > regards to ZFS.  Both panic on kmem exhaustion.  No one has answered my > > question as far as what's needed to stabilise ZFS on either 7.x or 8.x. > > > Under RELENG_8/i386, you still need to tune ZFS as mentioned in the > ZFS Tuning Guide: > > http://wiki.freebsd.org/ZFSTuningGuide > > With RELENG_8/amd64 no tuning is necessary, if the system has at least 2G RAM. Nope. http://lists.freebsd.org/pipermail/freebsd-stable/2009-October/052256.html -- | 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 |