On Thu, 18 Oct 2012 00:45:27 +0300, Andriy Gapon wrote:
on 18/10/2012 00:05 Andriy Gapon said the following:
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?
Oh, hmm, not sure if it is a bug that we imported from upstream or a porting
mistake. Before r238391 do_prefix variable in zfs_prop_set (in
cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c) was always
initialized.
Now it is either explicitly set to B_FALSE or left alone uninitialized.
http://svnweb.freebsd.org/base/head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c?r1=237119&r2=238391&pathrev=238391
Not sure if it's helpful, but I can't reproduce the issue with pretty
recent illumos-gate (at r13853):
sirius:root:~# zfs create -o mountpoint=/test rpool/test
sirius:root:~# touch /test/baz
sirius:root:~# zfs set mountpoint=/foo rpool/test
sirius:root:~# ls -ld /foo/
drwxr-xr-x 2 root root 3 Oct 18 08:36 /foo/
sirius:root:~# ls -l /foo/
total 1
-rw-r--r-- 1 root root 0 Oct 18 08:36 baz
sirius:root:~# zfs list rpool/test
NAME USED AVAIL REFER MOUNTPOINT
rpool/test 31K 737G 31K /foo
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
r...@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
r...@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
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