From owner-freebsd-amd64@FreeBSD.ORG Mon Feb 6 17:10:10 2012 Return-Path: Delivered-To: freebsd-amd64@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 362E51065677 for ; Mon, 6 Feb 2012 17:10:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D10308FC18 for ; Mon, 6 Feb 2012 17:10:09 +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 q16HA90E045107 for ; Mon, 6 Feb 2012 17:10:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q16HA9a9045106; Mon, 6 Feb 2012 17:10:09 GMT (envelope-from gnats) Resent-Date: Mon, 6 Feb 2012 17:10:09 GMT Resent-Message-Id: <201202061710.q16HA9a9045106@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-amd64@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Florian Wilkemeyer Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1CF241065672 for ; Mon, 6 Feb 2012 17:08:43 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id ED36F8FC08 for ; Mon, 6 Feb 2012 17:08:42 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q16H8gtr052061 for ; Mon, 6 Feb 2012 17:08:42 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q16H8g8r052060; Mon, 6 Feb 2012 17:08:42 GMT (envelope-from nobody) Message-Id: <201202061708.q16H8g8r052060@red.freebsd.org> Date: Mon, 6 Feb 2012 17:08:42 GMT From: Florian Wilkemeyer To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 X-Mailman-Approved-At: Mon, 06 Feb 2012 17:23:40 +0000 Cc: Subject: amd64/164828: pthread_create/join memory leak X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Feb 2012 17:10:10 -0000 >Number: 164828 >Category: amd64 >Synopsis: pthread_create/join memory leak >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-amd64 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Feb 06 17:10:09 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Florian Wilkemeyer >Release: 9.0-RELEASE >Organization: >Environment: FreeBSD 9test 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: I recently noticed that pthread_create/join leaks memory when you're going to create & destroy masses of threads. Test code: (compiled with gcc -o test test.c -lphtread) #include void *thrProc(void *arg){ pthread_exit(NULL); } int main(){ pthread_t thr; while(1){ thr = NULL; pthread_create(&thr, NULL, thrProc, NULL); pthread_join(thr, NULL); } return 0; } The same code runs on 8.2 without problems: FreeBSD wilkemeyer-laptop 8.2-RELEASE-p2 FreeBSD 8.2-RELEASE-p2 #0: Thu Jul 21 20:11:49 CEST 2011 root@wilkemeyer-laptop:/usr/obj/usr/src/sys/WILKEMEYER_LAPTOP amd64 >How-To-Repeat: #include void *thrProc(void *arg){ pthread_exit(NULL); } int main(){ pthread_t thr; while(1){ thr = NULL; pthread_create(&thr, NULL, thrProc, NULL); pthread_join(thr, NULL); } return 0; } // compile with // gcc -o test test.c -lphtread // >Fix: >Release-Note: >Audit-Trail: >Unformatted: