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Date: Wed, 6 Feb 2019 10:02:48 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: TEST: Cygwin 3.0.0-0.4
Message-ID: <20190206090248.GW3532@calimero.vinschen.de>
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References: <announce DOT 20190201193437 DOT GB3912 AT calimero DOT vinschen DOT de> <5C5A2ADD DOT 5010608 AT tlinx DOT org>
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On Feb  5 16:31, L A Walsh wrote:
> On 2/1/2019 11:34 AM, Corinna Vinschen wrote:
> >
> > - Cygwin PIDs have been decoupled from Windows PID.  Cygwin PIDs are
> >   now incrementally dealt in the range from 2 up to 65535, POSIX-like.
> >=20=20=20
> ----
> Posix like?  Posix starts from '1' (usually for init), but
> never heard it limited to 65535 ---

It's just the current limit.  Linux defaults to 32767, BSD to 99999.
PID 1 is the init process and the PID orphaned processes get their
parent PID set to 1.  You don't want a real process in Cygwin get
this PID so it's skipped.

> Linux allows 32bits (I set it to 99,999) to keep it to 5 digits
> and uses /proc/sys/kernel/pid_max to adjust it.

Yes, but this is too much hassle for a start.


Corinna

--=20
Corinna Vinschen
Cygwin Maintainer

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