From owner-freebsd-current@FreeBSD.ORG Fri Jul 10 19:25:41 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B261A106566B; Fri, 10 Jul 2009 19:25:41 +0000 (UTC) (envelope-from serenity@exscape.org) Received: from ch-smtp01.sth.basefarm.net (ch-smtp01.sth.basefarm.net [80.76.149.212]) by mx1.freebsd.org (Postfix) with ESMTP id 6BBC08FC22; Fri, 10 Jul 2009 19:25:41 +0000 (UTC) (envelope-from serenity@exscape.org) Received: from c83-253-252-234.bredband.comhem.se ([83.253.252.234]:43500 helo=mx.exscape.org) by ch-smtp01.sth.basefarm.net with esmtp (Exim 4.69) (envelope-from ) id 1MPLix-0002we-5H; Fri, 10 Jul 2009 21:25:37 +0200 Received: from [192.168.1.5] (macbookpro [192.168.1.5]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mx.exscape.org (Postfix) with ESMTPSA id 92DF311E9F0; Fri, 10 Jul 2009 21:25:35 +0200 (CEST) Message-Id: <45291598-D091-4E90-B968-22E59BEB3846@exscape.org> From: Thomas Backman To: FreeBSD current In-Reply-To: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v935.3) Date: Fri, 10 Jul 2009 21:25:34 +0200 References: <72163521-40BF-4764-8B74-5446A88DFBF8@exscape.org> X-Mailer: Apple Mail (2.935.3) X-Originating-IP: 83.253.252.234 X-Scan-Result: No virus found in message 1MPLix-0002we-5H. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1MPLix-0002we-5H d61ea09685ba684f741fc63673280140 Cc: freebsd-fs@freebsd.org Subject: Re: Reproducible ZFS panic, w/ script (Was: "New" ZFS crash on FS (pool?) unmount/export) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jul 2009 19:25:42 -0000 On Jul 10, 2009, at 21:01, Thomas Backman wrote: > OK, I've finally written a script that reproduces this panic for me > every time (6-7 tries in a row should be good enough, plus one on > another box). It would be great to have a few testers - and if you > do test it, PLEASE report your results here - positive or negative! > The main aim is, of course, to provide ZFS devs with their own core > dumps, DDB consoles and whatnot to possibly resolve this issue. > [...] > Back to the panic: > The problem appears to be related to clones somehow - the first two > times I ran in to this panic (in real use) was when messing with > clone/promote... so that's what this script does. Damnit. Very sorry for the noise, but I just noticed that it IS NOT related to the clones. It crashes with the clone/promote lines (#77-78) commented out, too... Now I'm stumped as to where the issue is, I hope the previous mail can help track it down. A very similar setup runs every night, and it "only" crashes about one time in 10 or so. This crashes *every* time and I don't really see the difference between the commands the scripts run. Oh well... Regards, Thomas