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Subject: Re: ssh-agent doesn't die
To: <cygwin AT cygwin DOT com>
References: <319e26c0-32f0-40b7-2137-c7de170a3486 AT rl DOT ac DOT uk> <20191103190052 DOT GI3372 AT calimero DOT vinschen DOT de>
From: Tim Adye <T DOT J DOT Adye AT rl DOT ac DOT uk>
Message-ID: <38e07653-1a09-c398-d2ab-557965046b93@rl.ac.uk>
Date: Mon, 4 Nov 2019 11:49:07 +0000
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On 03/11/2019 19:00, Corinna Vinschen wrote:
> On Sep 27 00:42, Tim Adye wrote:
>> Hi,
>>
>> I have noticed a (new?) problem with using ssh-agent to start a session, eg.
>> with
>>
>>    ssh-agent xterm &
>>
>> 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.
>>
>> As a simple test example, consider:
>>
>> /bin/ssh-agent /bin/sleep 10
>>
>> While the sleep is still running, ps shows:
>>
>>        PID    PPID    PGID     WINPID   TTY         UID    STIME COMMAND
>>       1694    1693    1694       1576  ?          22534 00:01:10
>> /usr/bin/ssh-agent
>>       1653       1    1653      11740  cons1      22534 00:00:37
>> /usr/bin/bash
>>       1693    1653    1693       1552  cons1      22534 00:01:10
>> /usr/bin/sleep
>> [...]
>> Once the sleep finishes, ps shows:
>>
>>        PID    PPID    PGID     WINPID   TTY         UID    STIME COMMAND
>>       1694    1693    1694       1576  ?          22534 00:01:10
>> /usr/bin/ssh-agent
>>       1653       1    1653      11740  cons1      22534 00:00:37
>> /usr/bin/bash
>>
>> 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/

Hi Corinna,

That fixes the problem! With cygwin1-20191103.dll.xz installed as 
/usr/bin/cygwin1.dll, all my ssh-agent processes exit properly.

> Thanks,
> Corinna

Thanks for the excellent fix,
Tim.

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