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From: "Karl M" <karlm30 AT hotmail DOT com>
To: cygwin AT cygwin DOT com
Subject: RE: A problem with OpenSSH 3.8.p1-1 - ssh-agent
Date: Wed, 03 Mar 2004 06:21:07 -0800
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Hi Andrew...

Please keep this on the list so that it gets archived for others to search.

I'm not seeing this problem. I use win-2k and xp machines.

You mentioned that you use a script to launch ssh-agent. I use keychain 
(also a script to launch ssh-agent) for that. I launch it from a service, so 
the agent stays aroung from reboot to reboot. If I launch it from within my 
~.profile it only stays around for one login session. You also mention that 
you launch it from profile.d...Is that part of the sysvinit stuff?

I'm attaching the script I use to launch keychain and the script that 
installs the service with cygrunsrv in case you want to try that. The rm -rf 
in the launch script keeps the ssh-???? folders from accumulating.

HTH,

...Karl


>From: "Andrew J Halls" To: "'Karl M'" Subject: RE: A problem with OpenSSH 
>3.8.p1-1 - ssh-agent
>Date: Wed, 3 Mar 2004 23:44:16 +1030
>
>Hi Karl
>	Turning off McAfee has made no difference.
>
>	A couple of additional observations
>
>	First the ssh-agent is taking up approx 50% of the cpu while it is
>running. This is probably all the time it could get from the scheduler and
>the time the system needs to write to the event log.
>
>	Second is that I first noticed this problem after upgrading
>Cygwin-1.5 dll at around 1.5.3 or 1.5.4 back in September last year.
>
>As I only run one ssh-agent for all by rxvt/bash sessions that I run I use
>to run a script, out of /etc/profile.d, that would check to see if there 
>was
>a ssh-agent all ready running for the user , if not run one, is so export
>the correct SSH_XXXX into the environment if the script could communicate
>with that instance else give and error message.
>I do this so that I can close all of my rxvt/bash sessions if I needed to
>and reattach to the agent later when I started them up again.
>
>What I was noticing was that the first rxvt/bash session started would not
>complete it's shutdown until I killed the ssh-agent, this was not the
>pervious way the ssh-agent did things before in Cygwin-1.5.1 or 1.5.2 .
>This means to me that the ssh-agent was not closing all its file 
>descriptors
>properly when going into daemon mode or that the semantics of the fork or
>exec call had changed to be more like SVR4.
>
>I have another couple of machines running with Cygwin (the version of the
>dll has also been upgraded along the way) and OpenSSH-3.7.1p2 on them with
>the same results at above.
>
>Andy Halls
>
>-----Original Message-----
>From: Karl M
>Sent: Wednesday, March 03, 2004 1:21 AM
>To: cygwin AT cygwin DOT com
>Subject: Re: A problem with OpenSSH 3.8.p1-1 - ssh-agent
>
>Hi...
>
>If you are running McAfee, try turning it off as an experiment. I had ssh
>socket problems with McAfee in the past.
>
>HTH,
>
>...Karl
>
>
> >From: Corinna Vinschen >Reply-To: cygwin AT cygwin DOT com
> >To: cygwin AT cygwin DOT com
> >Subject: Re: A problem with OpenSSH 3.8.p1-1 - ssh-agent
> >Date: Tue, 2 Mar 2004 11:30:27 +0100
> >
> >On Feb 29 11:19, Andrew J Halls wrote:
> > > Hi
> > > 	I am having a problem with the ssh-agent and excess logging to the
> > > NT system event logger. After start the ssh-agent over 14,000 log
> >messages
> > > are entered into the Application log in less than 60 seconds. Each
> >message
> > > content seem to be the same and is as follows:
> > >
> > > [...]
> > > ssh-agent : PID 4672 : error: accept from AUTH_SOCKET: Resource
> >temporarily
> > > unavailable.
> >
> >This isn't related to the OpenSSH version.  I can't tell from the
> >error message what exactly happened.  It doesn't happen on my box.
> >
> >Does this happen all the time, reproducibly?  If yes, did you try
> >a recent Cygwin snapshot from http://cygwin.com/snapshots/ if that
> >cures the problem?
> >
> >If not, it would be interesting to see an strace of ssh-agent, perhaps.
> >
> >
> >Corinna
> >
> >--
> >Corinna Vinschen                  Please, send mails regarding Cygwin to
> >Cygwin Developer                                mailto:cygwin AT cygwin DOT com
> >Red Hat, Inc.
> >
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> >
>
>_________________________________________________________________
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>
>

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#!/bin/bash
# keychain service
#   launch keychain from a service so that the ssh-agent survives logoff

# clean up old socket files
rm -fr /tmp/ssh-* > /dev/null 2>&1

# launch keychain
keychain --noask --quiet


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#!/bin/bash
# keychain-service-install service-name user-name

if [ "~$1" = "~" ]; then
  echo No service name
  exit 1
fi

if [ "~$2" = "~" ]; then
  echo No user name
  exit 1
fi

echo Stoping and removing old keychain service
cygrunsrv --stop $1
cygrunsrv --remove $1

echo Installing new keychain service
cygrunsrv --install $1 \
  --args '/bin/keychain-service' \
  --dep 'OpenSSH' \
  --disp "KeyChain $2" \
  --desc "Creates a keychain (ssh-agent) process for $2." \
  --path '/bin/bash' \
  --user "$2"

echo User $2 requires the Log on as a Service right


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