From owner-cvs-src@FreeBSD.ORG  Tue Sep 12 11:40:35 2006
Return-Path: <owner-cvs-src@FreeBSD.ORG>
X-Original-To: cvs-src@FreeBSD.org
Delivered-To: cvs-src@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id F423716A603;
	Tue, 12 Sep 2006 11:40:34 +0000 (UTC)
	(envelope-from rwatson@FreeBSD.org)
Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8269043DB2;
	Tue, 12 Sep 2006 11:40:24 +0000 (GMT)
	(envelope-from rwatson@FreeBSD.org)
Received: from fledge.watson.org (fledge.watson.org [209.31.154.41])
	by cyrus.watson.org (Postfix) with ESMTP id 6899946CF9;
	Tue, 12 Sep 2006 07:40:23 -0400 (EDT)
Date: Tue, 12 Sep 2006 12:40:23 +0100 (BST)
From: Robert Watson <rwatson@FreeBSD.org>
X-X-Sender: robert@fledge.watson.org
To: Mike Silbersack <silby@silby.com>
In-Reply-To: <20060912002456.I43498@odysseus.silby.com>
Message-ID: <20060912123917.U83151@fledge.watson.org>
References: <200609061356.k86DuZ0w016069@repoman.freebsd.org>
	<20060906091204.B6691@odysseus.silby.com>
	<20060906143204.GQ40020@FreeBSD.org>
	<20060906093553.L6691@odysseus.silby.com>
	<20060906150506.GA7069@rambler-co.ru>
	<20060911005435.A23530@odysseus.silby.com>
	<20060911142703.GF27667@FreeBSD.org>
	<20060912001916.S43498@odysseus.silby.com>
	<20060912002456.I43498@odysseus.silby.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: cvs-src@FreeBSD.org, Gleb Smirnoff <glebius@FreeBSD.org>,
	Ruslan Ermilov <ru@FreeBSD.org>, cvs-all@FreeBSD.org,
	src-committers@FreeBSD.org
Subject: Re: cvs commit: src/sys/netinet in_pcb.c tcp_subr.c tcp_timer.c
 tcp_var.h
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 12 Sep 2006 11:40:35 -0000


On Tue, 12 Sep 2006, Mike Silbersack wrote:

> On Tue, 12 Sep 2006, Mike Silbersack wrote:
>
>> On Mon, 11 Sep 2006, Gleb Smirnoff wrote:
>> 
>>> The UMA zone can't be made smaller than it is, while IP port ranges can 
>>> vary in both directions.
>> 
>> Hm, it can't be made smaller because we're using UMA_ZONE_NOFREE... why are 
>> we using that?  Shouldn't locking handle that, rwatson? :)
>
> Hm, it's been UMA_ZONE_NOFREE since day one.  The reason may or may not be 
> relevant after all the work rwatson has done with locking.

Unless the monitoring model is changed, this remains 100% necessary, or we may 
find ourselves performing mutex operations on uninitialized mutexes, 
corrupting kernel memory, or exporting other kernel data structures improperly 
to user space.

Robert N M Watson
Computer Laboratory
University of Cambridge