Date: Sat, 16 Aug 2014 20:55:17 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 192715] New: zfs diff does not report accurate file deletion differences Message-ID: <bug-192715-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192715 Bug ID: 192715 Summary: zfs diff does not report accurate file deletion differences Product: Base System Version: 9.3-RELEASE Hardware: amd64 OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: kgeorge@tcpsoft.com 'zfs diff' does not report accurate file deletion differences. I noticed this when I created a snapshot of a dataset, removed some files, and then performed a diff. It did not show all the files that were removed. Here's a recipe to reproduce: [root@atlantis ~]# zfs create tank/test [root@atlantis ~]# cd /tank/test [root@atlantis /tank/test]# touch a [root@atlantis /tank/test]# zfs snapshot tank/test@1 [root@atlantis /tank/test]# zfs snapshot tank/test@2 [root@atlantis /tank/test]# rm a [root@atlantis /tank/test]# zfs diff tank/test@1 M /tank/test/ - /tank/test/a [root@atlantis /tank/test]# zfs diff tank/test@2 M /tank/test/ [root@atlantis /tank/test]# [root@atlantis /tank/test]# uname -a However, I'm not sure if this is the only case that triggers this bug. I am running 9.3-RELEASE: [root@atlantis /tank/test]# uname -a FreeBSD atlantis 9.3-RELEASE FreeBSD 9.3-RELEASE #0 r268512: Thu Jul 10 23:44:39 UTC 2014 root@snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 I'm apparently not the only one experiencing this. A search on Illumos' bug tracker let me to this issue: https://www.illumos.org/issues/3043 which led to this issue in zfsonlinux: https://github.com/zfsonlinux/zfs/issues/2081. For what it's worth, my zpool was originally created as v28 on 9.0-RELEASE and has been upgrated to v5000 with the following feature flags: tank feature@async_destroy enabled local tank feature@empty_bpobj active local tank feature@lz4_compress enabled local tank feature@multi_vdev_crash_dump enabled local tank feature@spacemap_histogram active local tank feature@enabled_txg active local tank feature@hole_birth active local tank feature@extensible_dataset enabled local tank feature@bookmarks enabled local tank feature@filesystem_limits enabled local -- You are receiving this mail because: You are the assignee for the bug.
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