From owner-freebsd-threads@FreeBSD.ORG  Thu Jul 29 21:30:04 2010
Return-Path: <owner-freebsd-threads@FreeBSD.ORG>
Delivered-To: freebsd-threads@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 3DF85106566C
	for <freebsd-threads@hub.freebsd.org>;
	Thu, 29 Jul 2010 21:30:04 +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 284C18FC1B
	for <freebsd-threads@hub.freebsd.org>;
	Thu, 29 Jul 2010 21:30:04 +0000 (UTC)
Received: from freefall.freebsd.org (localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o6TLU3VR030073
	for <freebsd-threads@freefall.freebsd.org>;
	Thu, 29 Jul 2010 21:30:03 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o6TLU3Xi030068;
	Thu, 29 Jul 2010 21:30:03 GMT (envelope-from gnats)
Date: Thu, 29 Jul 2010 21:30:03 GMT
Message-Id: <201007292130.o6TLU3Xi030068@freefall.freebsd.org>
To: freebsd-threads@FreeBSD.org
From: Jilles Tjoelker <jilles@stack.nl>
Cc: 
Subject: Re: threads/148515: Memory / syslog strangeness in FreeBSD 8.x (
 possible leak/ threading issue )
X-BeenThere: freebsd-threads@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: Jilles Tjoelker <jilles@stack.nl>
List-Id: Threading on FreeBSD <freebsd-threads.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>, 
	<mailto:freebsd-threads-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-threads>
List-Post: <mailto:freebsd-threads@freebsd.org>
List-Help: <mailto:freebsd-threads-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>,
	<mailto:freebsd-threads-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 29 Jul 2010 21:30:04 -0000

The following reply was made to PR threads/148515; it has been noted by GNATS.

From: Jilles Tjoelker <jilles@stack.nl>
To: bug-followup@FreeBSD.org, vikash.badal@is.co.za
Cc:  
Subject: Re: threads/148515: Memory / syslog strangeness in FreeBSD 8.x (
 possible leak/ threading issue )
Date: Thu, 29 Jul 2010 23:27:33 +0200

 The difference could perhaps be explained by malloc(3) changes.
 8.x's malloc tries to keep more memory per-thread, which reduces
 contention but increases memory usage.
 
 By the way, your program may behave erratically when it terminates or
 when pthread_create() fails because pthread_cancel() may be called on an
 uninitialized pthread_t, pthread functions are called on detached and
 terminated threads and the signal handler calls functions that are not
 async-signal-safe.
 
 -- 
 Jilles Tjoelker