From owner-freebsd-threads@FreeBSD.ORG  Fri Jul 18 13:26:26 2003
Return-Path: <owner-freebsd-threads@FreeBSD.ORG>
Delivered-To: freebsd-threads@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id EB09E37B401; Fri, 18 Jul 2003 13:26:26 -0700 (PDT)
Received: from ns1.xcllnt.net (209-128-86-226.BAYAREA.NET [209.128.86.226])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 1459743FB1; Fri, 18 Jul 2003 13:26:26 -0700 (PDT)
	(envelope-from marcel@xcllnt.net)
Received: from dhcp01.pn.xcllnt.net (dhcp01.pn.xcllnt.net [192.168.4.201])
	by ns1.xcllnt.net (8.12.9/8.12.9) with ESMTP id h6IKQPv1070037;
	Fri, 18 Jul 2003 13:26:25 -0700 (PDT)
	(envelope-from marcel@piii.pn.xcllnt.net)
Received: from dhcp01.pn.xcllnt.net (localhost [127.0.0.1])
	by dhcp01.pn.xcllnt.net (8.12.9/8.12.9) with ESMTP id h6IKQPNd035039;
	Fri, 18 Jul 2003 13:26:25 -0700 (PDT)
	(envelope-from marcel@dhcp01.pn.xcllnt.net)
Received: (from marcel@localhost)
	by dhcp01.pn.xcllnt.net (8.12.9/8.12.9/Submit) id h6IKQPgT035038;
	Fri, 18 Jul 2003 13:26:25 -0700 (PDT)
	(envelope-from marcel)
Date: Fri, 18 Jul 2003 13:26:25 -0700
From: Marcel Moolenaar <marcel@xcllnt.net>
To: deischen@freebsd.org
Message-ID: <20030718202625.GA34991@dhcp01.pn.xcllnt.net>
References: <Pine.GSO.4.10.10307181538360.18280-100000@pcnet5.pcnet.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <Pine.GSO.4.10.10307181538360.18280-100000@pcnet5.pcnet.com>
User-Agent: Mutt/1.5.4i
cc: threads@freebsd.org
Subject: Re: Rearranging kse mailbox
X-BeenThere: freebsd-threads@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
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: Fri, 18 Jul 2003 20:26:27 -0000

On Fri, Jul 18, 2003 at 03:46:56PM -0400, Daniel Eischen wrote:
> I took a cut at it.
> 
> Comments, suggestions?

Looks good in general. As a suggestion: On ia64 the context is
128-bit aligned due to having FP registers. I would suggest to
order the structs so that both the context and sigset_t are
16-byte aligned on 64-bit platforms.
Alignment of sigset_t to 16 bytes allows machines that have
16-byte atomic operations to read/write the sigset_t atomically.

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel@xcllnt.net