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From: John Kozubik <john@kozubik.com>
Subject: RE: kern/156781: zfs is losing the snapshot directory
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The following reply was made to PR kern/156781; it has been noted by GNATS.

From: John Kozubik <john@kozubik.com>
To: bug-followup@FreeBSD.org
Cc:  
Subject: RE: kern/156781: zfs is losing the snapshot directory
Date: Tue, 3 Sep 2013 09:12:15 -0700 (PDT)

 I can confirm that this still occurs, this time on 8.3-RELEASE on amd64.
 
 Exactly as described by the previous submitters - nothing special going on 
 on our system (no NFS, etc.) - just plain old snapshots being created and 
 removed and ... eventually some .zfs/snapshot directories just disappear.
 
 Two things:
 
 1) In our experience, enough retrying of ls/find/etc. of the missing 
 snapshot directory will eventually lock the system up
 
 2) non-critical severity is incorrect - snapshots are a critical feature 
 and this is a critical bug.
 
 Thanks.