From owner-freebsd-current@FreeBSD.ORG Tue Aug 18 16:11:58 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 23723106568B; Tue, 18 Aug 2009 16:11:58 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from koef.zs64.net (koef.zs64.net [212.12.50.230]) by mx1.freebsd.org (Postfix) with ESMTP id C54F68FC41; Tue, 18 Aug 2009 16:11:57 +0000 (UTC) Received: from localhost by koef.zs64.net (8.14.3/8.14.3) with ESMTP id n7IGBrrt034267 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 18 Aug 2009 18:11:53 +0200 (CEST) (envelope-from stb@lassitu.de) (authenticated as stb) Message-Id: From: Stefan Bethke To: Thomas Backman 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 v936) Date: Tue, 18 Aug 2009 18:11:52 +0200 References: <25E11A9B-9FDE-4C34-8C6F-8A7883E9876A@exscape.org> X-Mailer: Apple Mail (2.936) Cc: FreeBSD current , Pawel Dawidek Jakub Subject: Re: Bad news re: new (20080817) ZFS patches and send/recv (broken again) 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: Tue, 18 Aug 2009 16:11:58 -0000 Am 18.08.2009 um 16:20 schrieb Thomas Backman: > On Aug 17, 2009, at 17:24, Thomas Backman wrote: > >> On Aug 17, 2009, at 15:25, Thomas Backman wrote: >> >>> So, I've got myself a source tree almost completely free of >>> patches after today's batch of ZFS patches merged - all that >>> remains is that I uncommented ps -axl from /usr/sbin/crashinfo, >>> since it only coredumps anyway, and added CFLAGS+=-DDEBUG=1 to zfs/ >>> Makefile. >>> >>> One of the changes I didn't already have prior to this must have >>> broken something, though, because this script worked just fine >>> before the merges earlier today. >>> The script below is the exact same I linked in http://lists.freebsd.org/pipermail/freebsd-current/2009-July/009174.html >>> back in July (URL to the script: http://exscape.org/temp/zfs_clone_panic.sh >>> ) - I made some local changes, thus the name invoked below. >>> >>> Now that all the patches are merged, you should need nothing but >>> the script, bash, and the ~200MB free space on the partition >>> containing /root/ to reproduce this problem. >>> (Note that the "no such pool" in the FIRST script is normal; it >>> simply tries to clean up something that isn't there, without error/ >>> sanity checking.) >>> >>> [...] >>> + zpool create -f -R /slave slave ggate666 >>> ++ date +backup-%Y%m%d-%H%M >>> + NOW=backup-20090817-1522 >>> + echo 'Creating snapshots' >>> Creating snapshots >>> + zfs snapshot -r tank@backup-20090817-1522 >>> + echo 'Cloning pool' >>> Cloning pool >>> + zfs send -R tank@backup-20090817-1522 >>> + zfs recv -vFd slave >>> cannot receive: invalid stream (malformed nvlist) >>> warning: cannot send 'tank@backup-20090817-1522': Broken pipe >>> >>> >>> Regards, >>> Thomas >> This is perhaps more troubling... >> [...] >> [root@chaos ~]# zpool create testpool ad0s1d >> [root@chaos ~]# zpool export testpool >> [root@chaos ~]# zpool import testpool >> cannot import 'testpool': no such pool available >> >> Regards, >> Thomas > > OK, I tried to reproduce this in a VM... And I have to say I was a > bit surprised: after doing an installkernel/installworld, but BEFORE > REBOOTING (I install in "multi"-user (one user via ssh), never had a > problem with that), the same issue has appeared, so I'm guessing > zfs.ko can't be to blame here? It's not the zpool binary by itself: after updating from a two-day old current (make world && reboot): root@freebsd-current:~# zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT zroot 14.9G 753M 14.1G 4% ONLINE - root@freebsd-current:~# zpool export zroot root@freebsd-current:~# zpool list no pools available root@freebsd-current:~# zpool import zroot cannot import 'zroot': no such pool available root@freebsd-current:~# zpool.old import zroot cannot import 'zroot': no such pool available root@freebsd-current:~# zpool.old import root@freebsd-current:~# uname -a FreeBSD freebsd-current.lassitu.de 8.0-BETA2 FreeBSD 8.0-BETA2 #1 r196359: Tue Aug 18 16:42:41 CEST 2009 root@freebsd-current.lassitu.de :/usr/obj/usr/src/sys/MINIMAL amd64 I saved zfs and zpool before the installworld. And my root is actually on UFS; this pool was left over from root on zfs raidz experiments. root@freebsd-current:~# ls -l /sbin/zpool* -r-xr-xr-x 1 root wheel 76752 Aug 18 17:47 /sbin/zpool* -r-xr-xr-x 1 root wheel 76752 Aug 18 17:46 /sbin/zpool.old* root@freebsd-current:~# md5 /sbin/zpool* MD5 (/sbin/zpool) = 83dcf6343bb0392a38159dd456dcf4c5 MD5 (/sbin/zpool.old) = 340cb5a383b2fc3c77afbdc881258597 HTH, Stefan -- Stefan Bethke Fon +49 151 14070811