ZFS snapshot renames failing after upgrade to 9.2

[Gerrit Kühn]

On Fri, 20 Dec 2013 10:05:22 +0100 Gerrit Kühn <gerrit.kuehn at aei.mpg.de>
wrote about Re: ZFS snapshot renames failing after upgrade to 9.2:

GK> As you can see, the snapshot rotating got stuck somewhere. What is
GK> displayed under .zfs/snapshot does not reflect what zfs is really
GK> seeing: daily.6 is inaccessible, and the rotation that happened so far
GK> is not reflected under .zfs/snapshot, either.

And just as a sidenote: Reboot is not necessary to fis this, exporting and
importing the zpool does that, too:

---
root at shapeshifter:~ # ll /tank/git/.zfs/snapshot/
total 35
drwxr-xr-x  12 211   211    25 Dec 20 00:00 daily.0/
drwxr-xr-x  12 211   211    25 Dec 19 09:18 daily.1/
drwxr-xr-x  12 211   211    25 Dec 19 00:00 daily.2/
drwxr-xr-x  12 211   211    24 Dec 18 00:00 daily.3/
drwxr-xr-x  12 211   211    24 Dec 17 00:00 daily.4/
drwxr-xr-x  12 211   211    24 Dec 16 00:00 daily.5/
drwxr-xr-x  12 211   211    24 Dec 14 00:00 daily.6/
drwxr-xr-x  12 211   211    24 Dec 15 00:00 weekly.0/
drwxr-xr-x  12 211   211    24 Dec  8 00:00 weekly.1/
drwxr-xr-x  12 211   211    24 Dec  1 00:00 weekly.2/
drwxr-xr-x  12 211   211    24 Nov 17 00:00 weekly.3/
drwxr-xr-x  12 211   211    24 Nov 10 00:00 weekly.4/
drwxr-xr-x   2 root  wheel   3 Oct 20 00:00 weekly.5/
drwxr-xr-x   2 root  wheel   3 Oct  6 00:00 weekly.6/
---


This has worked flawlessly for me for years. I would really appreciate any
help in fixing this. Trouble started with 9.2 as far as I can tell (and
the original poster said the same). I have systems with 9.1 that do not
show this behaviour.


cu
  Gerrit