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From: Michael Wild <themiwi AT gmail DOT com>
Date: Mon, 2 Jun 2014 10:37:50 +0200
Message-ID: <CAALQ5r=2=hY6H4jFSg9y7j6CC9Y3+xdUFSt7GQNZE+hKVcoCpA@mail.gmail.com>
Subject: Re: tmux failed and got the message: failed to connect to server: No error
To: cygwin AT cygwin DOT com
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Hi Guan-Zhong

The problem is known upstream [1, 2] and I'm also trying to figure out
which change in the cygwin DLL triggered this issue. I'll post here
again once I know more.

Michael

[1] http://sourceforge.net/p/tmux/mailman/message/32396655/
[2] http://sourceforge.net/p/tmux/mailman/message/32400834/

On Sat, May 31, 2014 at 5:29 PM, Guan-Zhong Huang wrote:
> cygwin-1.7.29-2 is ok.
> After updating to cygwin-1.7.30-1, I can't start tmux.
>
> I find it is because when tmux tries to connect to the unix domain
> socket that tmux server listens and tmux server hasn't started yet,
> connect() fails but errno is 0, not "Connection Refused (111)". This
> causes tmux to exit with error.
>
> If you want to reproduce this bug.
> tmux might work at the first time because the unix domain socket is not created.
> But after that, tmux will fail due to incorrect errno.
>
> Here's the strace I got:
> cygwin-1.7.30-1:
>    96 1063224 [main] tmux 4072 cygwin_connect: -1 = connect(5,
> 0x229780, 24), errno 0
> cygwin-1.7.29-2:
>    92 1054064 [main] tmux 3548 cygwin_connect: -1 = connect(5,
> 0x229780, 24), errno 111
>
>
> Best regads,
> Guan-Zhong
>
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