Date: Tue, 18 Aug 2009 16:20:24 +0200 From: Thomas Backman <serenity@exscape.org> To: Pawel Dawidek Jakub <pjd@FreeBSD.org> Cc: FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Bad news re: new (20080817) ZFS patches and send/recv (broken again) Message-ID: <B8CBCAE0-D057-4469-B481-21A4F2F6A4B0@exscape.org> In-Reply-To: <25E11A9B-9FDE-4C34-8C6F-8A7883E9876A@exscape.org> References: <AA349CA1-6BB8-44BC-B05E-37CC4F3480E0@exscape.org> <25E11A9B-9FDE-4C34-8C6F-8A7883E9876A@exscape.org>
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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? What the heck? Regards, Thomas
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