Date: Wed, 14 Jun 2017 14:23:52 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 219972] Unable to zpool export following some zfs recv Message-ID: <bug-219972-3630-tG0lUe5uws@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-219972-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219972 --- Comment #1 from pfribeiro@gmail.com --- I've done some further testing on this by isolating the issue to a 'zfs send' and 'zfs recv' on the same machine between the external USB drive (on /dev/da0) and a USB stick (on /dev/da1). 1. I made sure that there were no existing pools on both devices, by destroying the pools and doing 'zpool labelclear -f /dev/da0' and 'zpool labelclear -f /dev/da1'. root@sunflower:~ # zpool labelclear -f /dev/da0 root@sunflower:~ # zpool labelclear -f /dev/da1 2. Created two pools: root@sunflower:~ # zpool create -O atime=off -O compression=lz4 master /dev/da0 root@sunflower:~ # zpool create -O atime=off -O compression=lz4 slave /dev/da1 root@sunflower:~ # zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT master 7.25T 360K 7.25T - 0% 0% 1.00x ONLINE - slave 7.25G 78.5K 7.25G - 0% 0% 1.00x ONLINE - zroot 51.5G 1.11G 50.4G - 0% 2% 1.00x ONLINE - 3. Created some test file on the master pool: root@sunflower:~ # touch /master/test root@sunflower:~ # echo "Hello" > /master/test 4. Created a snapshot on the master pool: root@sunflower:~ # zfs snapshot -r "master@1" 5. Exported the 'slave' pool and imported unmounted (not sure this matters really): root@sunflower:~ # zpool export slave root@sunflower:~ # zpool import -N slave 6. Sent the snapshot across to the slave pool: root@sunflower:~ # zfs send -Rev "master@1" | zfs recv -Fu slave full send of master@1 estimated size is 10K total estimated size is 10K TIME SENT SNAPSHOT root@sunflower:~ # zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT master 7.25T 588K 7.25T - 0% 0% 1.00x ONLINE - slave 7.25G 376K 7.25G - 0% 0% 1.00x ONLINE - zroot 51.5G 1.11G 50.4G - 0% 2% 1.00x ONLINE - 7. Tried to export and import the slave a few times: root@sunflower:~ # zpool export slave root@sunflower:~ # zpool import slave root@sunflower:~ # zpool export slave cannot export 'slave': pool is busy ...and bang the problem is back. This seems a little crazy. I would appreciate if someone could try and help me reproduce this problem on their system, and perhaps point me to some further debugging steps. I'm out of ideas as to what else I could/should test at this point. Thanks -- You are receiving this mail because: You are the assignee for the bug.home | help
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