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Date: Sun, 3 Nov 2019 20:00:52 +0100
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: Tim Adye <T.J.Adye@rl.ac.uk>
Cc: cygwin@cygwin.com
Subject: Re: ssh-agent doesn't die
Message-ID: <20191103190052.GI3372@calimero.vinschen.de>
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Mail-Followup-To: Tim Adye <T.J.Adye@rl.ac.uk>, cygwin@cygwin.com
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On Sep 27 00:42, Tim Adye wrote:
> Hi,
>=20
> I have noticed a (new?) problem with using ssh-agent to start a session, =
eg.
> with
>=20
> =C2=A0 ssh-agent xterm &
>=20
> When the xterm (or whatever) command completes, the ssh-agent process is
> still left running in the background. It should stop once its subprocess =
is
> done.
>=20
> As a simple test example, consider:
>=20
> /bin/ssh-agent /bin/sleep 10
>=20
> While the sleep is still running, ps shows:
>=20
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PID=C2=A0=C2=A0=C2=A0 PPID=C2=A0=C2=A0=C2=
=A0 PGID=C2=A0=C2=A0=C2=A0=C2=A0 WINPID=C2=A0=C2=A0 TTY=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 UID=C2=A0=C2=A0=C2=A0 STIME COMMAND
> =C2=A0=C2=A0=C2=A0=C2=A0 1694=C2=A0=C2=A0=C2=A0 1693=C2=A0=C2=A0=C2=A0 16=
94=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1576=C2=A0 ?=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 22534 00:01:10
> /usr/bin/ssh-agent
> =C2=A0=C2=A0=C2=A0=C2=A0 1653=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1=C2=A0=
=C2=A0=C2=A0 1653=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 11740=C2=A0 cons1=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 22534 00:00:37
> /usr/bin/bash
> =C2=A0=C2=A0=C2=A0=C2=A0 1693=C2=A0=C2=A0=C2=A0 1653=C2=A0=C2=A0=C2=A0 16=
93=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1552=C2=A0 cons1=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 22534 00:01:10
> /usr/bin/sleep
> [...]
> Once the sleep finishes, ps shows:
>=20
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PID=C2=A0=C2=A0=C2=A0 PPID=C2=A0=C2=A0=C2=
=A0 PGID=C2=A0=C2=A0=C2=A0=C2=A0 WINPID=C2=A0=C2=A0 TTY=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 UID=C2=A0=C2=A0=C2=A0 STIME COMMAND
> =C2=A0=C2=A0=C2=A0=C2=A0 1694=C2=A0=C2=A0=C2=A0 1693=C2=A0=C2=A0=C2=A0 16=
94=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1576=C2=A0 ?=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 22534 00:01:10
> /usr/bin/ssh-agent
> =C2=A0=C2=A0=C2=A0=C2=A0 1653=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1=C2=A0=
=C2=A0=C2=A0 1653=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 11740=C2=A0 cons1=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 22534 00:00:37
> /usr/bin/bash
>=20
> ie. ssh-agent is still running, though its PPID no longer exists.

I pushed a patch and created new developer snapshots.  Please test the
latest from https://cygwin.com/snapshots/


Thanks,
Corinna

--=20
Corinna Vinschen
Cygwin Maintainer

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