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Date: Mon, 2 Mar 2009 07:35:08 -0800 (PST)
From: eval <eval AT gmx DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: SSH/SCREEN/REATTACH bug
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Hello Andrew

I just did a quick test so far but it doesn't seem to work correctly.

The behaviour changed to the following:

I open a screen session - and disconnect (not detach!) from the ssh session.
I come back with screen -DRR and I get my old screen.

That's *good* and how I want it.

However if I start a program within the screen "i.e. ping something forever"
I don't get the session back that way. Instead the old session will look
"dead" and a new screen will open :( Thx for trying tho.

eval.







Andrew Schulman-3 wrote:
> 
>> screen hangs when attempting to reattach to a session that wasn't
>> manually detached but instead the ssh connection to the server where
>> screen is running was closed.
>> 
>> i can neither 
>> screen -list
>> nor
>> screen -D -RR
>> 
>> to get back into the session. for both calls screen will wait forever but
>> nothing will happen.
>> strace screen -list will stop here:
>> 329 136923 [main] screen 137852 fhandler_socket::af_local_send_secret:
>> Sending af_local secret succeeded 
> 
> eval, I've packaged a new test release of screen for Cygwin 1.7.  This
> version
> uses fifos instead of pipes.  It's possible that this change may fix the
> problem
> you reported.
> 
> If you want to test it, here's what you'll have to do:
> 
> (1) Install the latest Cygwin DLL snapshot into your Cygwin 1.7
> installation.
> You can download it from
> http://cygwin.com/snapshots/cygwin1-20090226.dll.bz2,
> or from the Cygwin snapshot page, http://cygwin.com/snapshots.  You need
> the
> 2009-02-26 snapshot or later.  Once you have that, close all of your
> Cygwin 1.7
> processes, go to the bin directory of your 1.7 installation, move
> cygwin1.dll
> out of the way, unpack the archive, and rename e.g. cygwin1-20090226.dll
> to
> cygwin1.dll.
> 
> (2) Get and unpack the test screen installation:
> 
> wget
> http://home.comcast.net/~andrex2/cygwin-1.7/screen/screen-4.0.3-4.tar.bz2
> tar -C/ -jxf screen-4.0.3-4.tar.bz2
> 
> Now relogin via ssh and see if your problem still occurs.  Good luck, and
> let us
> know how it goes.
> 
> Andrew.
> 
> 
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