From owner-freebsd-bugs@FreeBSD.ORG Mon Feb 20 20:51:45 2012 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0DC94106566C; Mon, 20 Feb 2012 20:51:45 +0000 (UTC) (envelope-from jilles@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D5EC88FC19; Mon, 20 Feb 2012 20:51:44 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q1KKpio2051718; Mon, 20 Feb 2012 20:51:44 GMT (envelope-from jilles@freefall.freebsd.org) Received: (from jilles@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q1KKpih8051714; Mon, 20 Feb 2012 20:51:44 GMT (envelope-from jilles) Date: Mon, 20 Feb 2012 20:51:44 GMT Message-Id: <201202202051.q1KKpih8051714@freefall.freebsd.org> To: jilles@FreeBSD.org, freebsd-bugs@FreeBSD.org, jilles@FreeBSD.org From: jilles@FreeBSD.org Cc: Subject: Re: bin/165164: [PATCH][bin] xargs(1) incorrect pointer passed to waitchildren function X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Feb 2012 20:51:45 -0000 Synopsis: [PATCH][bin] xargs(1) incorrect pointer passed to waitchildren function Responsible-Changed-From-To: freebsd-bugs->jilles Responsible-Changed-By: jilles Responsible-Changed-When: Mon Feb 20 20:47:47 UTC 2012 Responsible-Changed-Why: Take. This looks useful for standards/165155. I think the "race" between vfork/_exit/waitpid(WNOHANG) will always work as expected, however, because of the semantics of vfork and how the FreeBSD kernel signals _exit->vfork and _exit->waitpid at the same time during exit1. http://www.freebsd.org/cgi/query-pr.cgi?pr=165164