From owner-freebsd-questions@FreeBSD.ORG Fri May 21 20:26:02 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E7B11106564A for ; Fri, 21 May 2010 20:26:02 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email1.allantgroup.com (email1.emsphone.com [199.67.51.115]) by mx1.freebsd.org (Postfix) with ESMTP id 9F45C8FC0C for ; Fri, 21 May 2010 20:26:02 +0000 (UTC) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by email1.allantgroup.com (8.14.0/8.14.0) with ESMTP id o4LKQ1RQ052967 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 21 May 2010 15:26:02 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.14.4/8.14.3) with ESMTP id o4LKQ1Tq012521 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 21 May 2010 15:26:01 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.4/8.14.3/Submit) id o4LKQ170012519; Fri, 21 May 2010 15:26:01 -0500 (CDT) (envelope-from dan) Date: Fri, 21 May 2010 15:26:01 -0500 From: Dan Nelson To: Anoop Kumar Narayanan Message-ID: <20100521202601.GB8866@dan.emsphone.com> References: <9B425C841283E0418B1825D40CBCFA613D9E2689CF@ZABRYSVISEXMBX1.af.didata.local> <20100521191856.GA8866@dan.emsphone.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-OS: FreeBSD 8.0-STABLE User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: clamav-milter 0.96 at email1.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (email1.allantgroup.com [199.67.51.78]); Fri, 21 May 2010 15:26:02 -0500 (CDT) X-Scanned-By: MIMEDefang 2.45 Cc: "freebsd-questions@freebsd.org" Subject: Re: threads and malloc/free on freebsd 8.0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 May 2010 20:26:03 -0000 In the last episode (May 22), Anoop Kumar Narayanan said: > I think glibc uses asynchronous free, as in it doesn't free the memory > immediately. So even though the memory is free'd its still part of the > process's address space but present in the free pool and so it doesn't > crash. FreeBSD doesn't use glibc, so that doesn't apply here :) -- Dan Nelson dnelson@allantgroup.com