From owner-freebsd-threads@FreeBSD.ORG Thu Jul 12 16:10:11 2007 Return-Path: X-Original-To: freebsd-threads@hub.freebsd.org Delivered-To: freebsd-threads@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6B34316A41F for ; Thu, 12 Jul 2007 16:10:11 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40]) by mx1.freebsd.org (Postfix) with ESMTP id F141D13C45D for ; Thu, 12 Jul 2007 16:10:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l6CGAAGx063632 for ; Thu, 12 Jul 2007 16:10:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l6CGAA69063631; Thu, 12 Jul 2007 16:10:10 GMT (envelope-from gnats) Date: Thu, 12 Jul 2007 16:10:10 GMT Message-Id: <200707121610.l6CGAA69063631@freefall.freebsd.org> To: freebsd-threads@FreeBSD.org From: "Andrey Sverdlichenko" Cc: Subject: Re: threads/83914: [libc] popen() doesn't work in static threaded programs. X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Andrey Sverdlichenko List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jul 2007 16:10:11 -0000 The following reply was made to PR threads/83914; it has been noted by GNATS. From: "Andrey Sverdlichenko" To: bug-followup@freebsd.org, phk@critter.freebsd.dk Cc: Subject: Re: threads/83914: [libc] popen() doesn't work in static threaded programs. Date: Thu, 12 Jul 2007 19:41:27 +0400 Same problem exists in FreeBSD 6.2-RELEASE. Looks like fork() makes a call to _kse_single_thread(), which set curthread->attr.flags |=3D PTHREAD_SCOPE_SYSTEM But in _execve() this flag is gone, so instead of __sys_execve() call to kse_thr_interrupt() is made and in-kernel check for P_SA fails.