From owner-freebsd-hackers@FreeBSD.ORG  Thu May 12 18:48:29 2005
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 27D6716A4CE
	for <hackers@freebsd.org>; Thu, 12 May 2005 18:48:29 +0000 (GMT)
Received: from mail.farley.org (farley.org [67.64.95.201])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A34BB43D76
	for <hackers@freebsd.org>; Thu, 12 May 2005 18:48:28 +0000 (GMT)
	(envelope-from sean-freebsd@farley.org)
Received: from thor.farley.org (thor.farley.org [IPv6:2001:470:1f01:290:1::5])
	by mail.farley.org (8.13.1/8.13.1) with ESMTP id j4CImHRn047470;
	Thu, 12 May 2005 13:48:17 -0500 (CDT)
	(envelope-from sean-freebsd@farley.org)
Received: from localhost (localhost [127.0.0.1])
	by thor.farley.org (8.13.3/8.13.3) with ESMTP id j4CImEot002612;
	Thu, 12 May 2005 13:48:15 -0500 (CDT)
	(envelope-from sean-freebsd@farley.org)
Date: Thu, 12 May 2005 13:48:14 -0500 (CDT)
From: =?ISO-8859-1?Q?Se=E1n_C=2E_Farley?= <sean-freebsd@farley.org>
To: =?ISO-8859-1?Q?Herv=E9_Kergourlay?= <herve.kergourlay@atempo.com>
In-Reply-To: <428307A9.10901@atempo.com>
Message-ID: <20050512134151.O2556@thor.farley.org>
References: <428307A9.10901@atempo.com>
MIME-Version: 1.0
Content-Type: MULTIPART/MIXED; BOUNDARY="0-1023258206-1115923694=:2556"
cc: hackers@freebsd.org
Subject: Re: Porting on FreeBSD 53
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 12 May 2005 18:48:29 -0000

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--0-1023258206-1115923694=:2556
Content-Type: TEXT/PLAIN; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE

On Thu, 12 May 2005, Herv=E9 Kergourlay wrote:

<snip>

> 4) wait() API
>
> 2 problems, the first is a ECHILD error on a wait call after a fork fork
> The code is generic for most of unix system. Is there any specific proble=
ms=20
> to manage the fork and wait APIs ?
> the second problem with calls is a blocking wait() call in the same condi=
tion=20
> but this time the son process is finished but the wait call in the father=
=20
> stays blocked, again it's a generic Unix code
>
> If there is no evidence, ask me for more informations

The second problem sounds like what I am encountering
(http://www.freebsd.org/cgi/query-pr.cgi?pr=3D77818) with zsh for my
shell.  You did suspend (sigsuspend()) SIGCHLD before the fork?  By
"fork fork", do you mean you fork twice?

Se=E1n
--=20
sean-freebsd@farley.org
--0-1023258206-1115923694=:2556--