From owner-freebsd-stable@FreeBSD.ORG  Wed Feb 15 22:34:34 2006
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
X-Original-To: freebsd-stable@freebsd.org
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 3F9CF16A420
	for <freebsd-stable@freebsd.org>; Wed, 15 Feb 2006 22:34:34 +0000 (GMT)
	(envelope-from dan@dan.emsphone.com)
Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CBF0443D45
	for <freebsd-stable@freebsd.org>; Wed, 15 Feb 2006 22:34:33 +0000 (GMT)
	(envelope-from dan@dan.emsphone.com)
Received: (from dan@localhost)
	by dan.emsphone.com (8.13.1/8.13.4) id k1FMYXxV083925;
	Wed, 15 Feb 2006 16:34:33 -0600 (CST) (envelope-from dan)
Date: Wed, 15 Feb 2006 16:34:32 -0600
From: Dan Nelson <dnelson@allantgroup.com>
To: Kris Kennaway <kris@obsecurity.org>
Message-ID: <20060215223432.GH70956@dan.emsphone.com>
References: <1140027060.83368.11.camel@r4.agava-guns.domain>
	<20060215194204.GC70956@dan.emsphone.com>
	<20060215215608.GA55676@xor.obsecurity.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20060215215608.GA55676@xor.obsecurity.org>
X-OS: FreeBSD 5.4-STABLE
X-message-flag: Outlook Error
User-Agent: Mutt/1.5.11
Cc: Ivan Kolosovskiy <agava-develop@yandex.ru>, freebsd-stable@freebsd.org
Subject: Re: Strange process
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 15 Feb 2006 22:34:34 -0000

In the last episode (Feb 15), Kris Kennaway said:
> On Wed, Feb 15, 2006 at 01:42:04PM -0600, Dan Nelson wrote:
> > In the last episode (Feb 15), Ivan Kolosovskiy said:
> > > top:
> > > PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
> > > 38410 findfile    1  96    0     0K     0K START  0   0:00  0.00% grotty
> > > 
> > > ps:
> > > host$ ps -waux | grep grotty
> > > findfile 38410  0,0  0,0     0     0  p6  REJ  19:57     0:00,25 [grotty]
> > 
> > E in the STAT column means the process is trying to exit, but
> > can't. What does "ps lp 38410" print?  The MWCHAN column should say
> > where in the kernel the process is stuck.
> 
> I often see this too.  For example:
> 
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
>  5357 kkenn         1  96    0     0K     0K START    0:00  0.35% xpdf
> 
> > ps -waux  | grep xpdf
> kkenn    5357  0.3  0.0     0     0  ??  RE   Sun08PM   0:00.20 [xpdf]
> 
> > ps lp 5357
>   UID   PID  PPID CPU PRI NI   VSZ   RSS MWCHAN STAT  TT       TIME COMMAND

That syntax should have worked...  Try a plain "px axl | grep xpdf"
instead.

I think top's START state corresponds to the ~200-line window of code
in kern_fork.c:fork1() between p_state=PRS_NEW and p_state=PRS_NORMAL,
but I'm not positive.

-- 
	Dan Nelson
	dnelson@allantgroup.com