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Date: Thu, 6 Nov 2014 11:21:34 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Tiwei Bie <btw@mail.ustc.edu.cn>
Subject: Re: [PATCH] Finish the task 'sysctl reporting current working
 directory'
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Cc: freebsd-hackers@freebsd.org, Mateusz Guzik <mjguzik@gmail.com>
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On Thu, Nov 06, 2014 at 04:57:50PM +0800, Tiwei Bie wrote:
> On Thu, Nov 06, 2014 at 09:13:31AM +0100, Mateusz Guzik wrote:
> > On Mon, Nov 03, 2014 at 04:52:35PM +0800, Tiwei Bie wrote:
> > 
> > kernel changes got in in r274167
> > 
> > Please submit tmux patch to bugzilla.
> > 
> 
> Thanks! I have submitted the tmux patch to bugzilla [1].
> 
> [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194858

This is incorrect way to use kern_proc_cwd.  You should try the new
sysctl, and on ENOENT fall back to the kern_proc_file.  Expecting
that the binary is run on the same machine where it was build is
wrong.