kern/156781: [zfs] zfs is losing the snapshot directory,

[Peter Maloney]

The following reply was made to PR kern/156781; it has been noted by GNATS.

From: Peter Maloney <peter.maloney at brockmann-consult.de>
To: bug-followup at FreeBSD.org, bmeyer at mesoft.com.au
Cc:  
Subject: Re: kern/156781: [zfs] zfs is losing the snapshot directory,
Date: Fri, 13 Apr 2012 09:25:16 +0200

 Is the faulty dataset shared over NFS? If so, is it the new NFS server 
 (default in 9.0 I think) or the old (default in 8.2)?
 
 My ZFS over NFS on 8-STABLE has slightly similar problems on the NFS 
 client side, but only when viewed by a Linux client. A simple "ls -l" on 
 the .zfs/snapshot directory on a Linux client hangs the dataset. And 
 these lines show up in /var/log/messages when reloading the NFS server:
 
 Apr 12 10:08:38 [hostname] mountd[54479]: can't delete exports for 
 /tank/[...]/.zfs/snapshot/replication-20120411112000: Invalid argument
 
 And an "ls" without "-l" on a Linux client shows that the ones mentioned 
 in messages are files and the rest are directories (Linux shells 
 generally color them blue and append a / for directories).
 
 I can only guess that they may be related.