From owner-freebsd-threads@FreeBSD.ORG  Thu Feb 12 11:16:45 2004
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 4F68316A51F; Thu, 12 Feb 2004 11:16:45 -0800 (PST)
Received: from mail.pcnet.com (mail.pcnet.com [204.213.232.4])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 0C86743D39; Thu, 12 Feb 2004 11:16:45 -0800 (PST)
	(envelope-from eischen@vigrid.com)
Received: from mail.pcnet.com (mail.pcnet.com [204.213.232.4])
	by mail.pcnet.com (8.12.10/8.12.1) with ESMTP id i1CJGafo007758;
	Thu, 12 Feb 2004 14:16:36 -0500 (EST)
Date: Thu, 12 Feb 2004 14:16:36 -0500 (EST)
From: Daniel Eischen <eischen@vigrid.com>
X-Sender: eischen@pcnet5.pcnet.com
To: Craig Rodrigues <rodrigc@crodrigues.org>
In-Reply-To: <20040212171101.GA72641@crodrigues.org>
Message-ID: <Pine.GSO.4.10.10402121408350.5277-100000@pcnet5.pcnet.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: scottl@freebsd.org
cc: freebsd-threads@freebsd.org
Subject: Re: Should ps -p list threads?
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: Thu, 12 Feb 2004 19:16:45 -0000

On Thu, 12 Feb 2004, Craig Rodrigues wrote:

> On Thu, Feb 12, 2004 at 11:16:57AM -0500, Daniel Eischen wrote:
> > But 'ps' without -H seems to display KSEs where it shouldn't.
> 
> I looked in the source code of ps,
> specifically in src/bin/ps/ps.c

[ ... ]
> 
> So, I am not sure if this is a bug in kvm_getprocs() or in ps.c,
> but the result is that if you type ps or ps -H, they
> both display KSEs.  Probably just typing ps should not display
> them.
> 
> Any idea what the problem is?

We currently lack a sysctl interface to get finer-grained
process info.  I think KERN_PROC_THREADS (or whatever) should
be added as a flag to the sysctl, so that you can 'or' it
in to 'op' of kvm_getprocs().  You would need some kernel
changes to support it too.  I can look at it when I get
a chance.

-- 
Dan Eischen