From owner-freebsd-fs@freebsd.org  Fri Mar  4 13:47:33 2016
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Subject: Re: Processes freeze when they try to access particular ZFS directory
To: FreeBSD Filesystems <freebsd-fs@freebsd.org>
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From: Chris Stankevitz <chris@stankevitz.com>
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Date: Fri, 4 Mar 2016 05:47:31 -0800
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On 3/3/16 4:54 PM, Chris Stankevitz wrote:
> I have a FreeBSD 10.1-RELEASE-p13 machine on an air-gapped network. When
> I perform an 'ls -l' on a particular directory (with ~5 files), the ls
> process freezes and does not return.  kill -9 and closing the shell
> doesn't make the process go away either.

The file was in a nullfs mount of a ZFS in a jail.  Apparently that is 
an issue so I stopped doing it.

Chris