From owner-freebsd-hackers@FreeBSD.ORG  Mon Aug 20 22:11:32 2012
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Date: Mon, 20 Aug 2012 18:11:24 -0400
Message-ID: <CAOD8Yqrz790nTev20iP_eRfdRWHzsnHbpwbzYAORAe1vm+pMLg@mail.gmail.com>
From: Dan Plassche <dplassche@gmail.com>
To: Konstantin Belousov <kostikbel@gmail.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: FreeBSD 1.x Binaries Work Except under Chroot
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On Thu, Aug 16, 2012 at 9:06 AM, Konstantin Belousov
<kostikbel@gmail.com> wrote:

> Since you did not provided exact diff of your change, I cannot comment
> on what goes wrong. Anyway, just merge the r239301 locally and use
> sysctl kern.pid_max.

Thanks, the kern.pid_max tunable works well on 8.2.

The diff to /usr/src/sys/sys/proc.h before merging in r239301 was
editing PID_MAX:

     --- proc.h.bak	2010-12-21 12:09:25.000000000 -0500
     +++ proc.h	2012-08-15 13:54:25.000000000 -0400
     @@ -667,7 +667,7 @@
       * We use process IDs <= PID_MAX; PID_MAX + 1 must also fit in a pid_t,
       * as it is used to represent "no process group".
       */
     -#define	PID_MAX		99999
     +define PID_MAX		30000
      #define	NO_PID		100000

      #define	SESS_LEADER(p)	((p)->p_session->s_leader == (p))