Date: Thu, 18 Oct 2012 00:05:34 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Guido Falsi <mad@madpilot.net> Cc: "current@FreeBSD.org" <current@FreeBSD.org> Subject: Re: Regression with ZFS on recent current Message-ID: <507F1D9E.3010803@FreeBSD.org> In-Reply-To: <507EE9C1.7060800@madpilot.net> References: <507EE9C1.7060800@madpilot.net>
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on 17/10/2012 20:24 Guido Falsi said the following: > Hi! > > While testing portshaker I found a regression in latest current. > > portshaker depends on ZFS(when enabling ZFS support) remounting > filesystems on the fly when changing the mountpoint property. This is > working as expected on 9.x while on 10-current is not working. Problem > has appeared sometime before October 3rd. Can you clarify what you mean but this date? That the problem didn't exist in head until recently? Can you name a date when the problem didn't exists in head then? > Here is some sample output from a9.x machine and a 10-current one: > > root@micro:~ [0]# uname -a > FreeBSD micro.madpilot.net 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0 > r239180: Sat Aug 11 00:14:47 CEST 2012 > root@micro.madpilot.net:/usr/obj/usr/src/sys/MICRO amd64 > root@micro:~ [0]# zfs create tank/test > root@micro:~ [0]# touch /test/baz > root@micro:~ [0]# zfs set mountpoint=/foo tank/test > root@micro:~ [0]# ls -ld /foo > drwxr-xr-x 2 root wheel 3 Oct 17 19:18 /foo > root@micro:~ [0]# ls -l /foo/ > total 1 > -rw-r--r-- 1 root wheel 0 Oct 17 19:18 baz > root@micro:~ [0]# zfs list tank/test > NAME USED AVAIL REFER MOUNTPOINT > tank/test 144K 826G 144K /foo > > > root@marvin:~ [0]# uname -a > FreeBSD marvin.madpilot.net 10.0-CURRENT FreeBSD 10.0-CURRENT #7 > r241638: Wed Oct 17 14:33:18 CEST 2012 > root@marvin.madpilot.net:/usr/obj/usr/src/sys/MARVIN amd64 > root@marvin:~ [0]# zfs create tank/test > root@marvin:~ [0]# touch /test/baz > root@marvin:~ [0]# zfs set mountpoint=/foo tank/test > root@marvin:~ [0]# ls -ld /foo > ls: /foo: No such file or directory > root@marvin:~ [1]# ls -l /foo/ > ls: /foo/: No such file or directory > root@marvin:~ [1]# ls -ld /test > drwxr-xr-x 2 root wheel 3 Oct 17 19:19 /test > root@marvin:~ [0]# zfs list tank/test > NAME USED AVAIL REFER MOUNTPOINT > tank/test 31K 240G 31K /foo > > > Is this known? is the new behavior expected? > > Am I doing something stupid? > > Thanks in advance > -- Andriy Gapon
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