From owner-freebsd-fs@FreeBSD.ORG  Mon Jun 11 10:30:17 2012
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Date: Mon, 11 Jun 2012 13:30:13 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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Cc: Pawel Jakub Dawidek <pjd@FreeBSD.org>, Matthew Seaman <matthew@FreeBSD.org>,
	patpro@patpro.net
Subject: Re: [zfs] need help with a bug (PR 156781)
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I can observer a similar problem where I can not list .zfs directory under
filesystems which do not have any snapshots.  I can not tell if the problem
happens when all snapshots are removed or if it only happens if a filesystem
doesn't have any snapshots when ZFS is initialized (a system is booted).

I am not sure what's going on but a quick check with DTrace points to negative
caching as a culprit.  I see that cache_lookup() returns ENOENT for .zfs.


-- 
Andriy Gapon