From owner-cvs-all  Wed May  2 17:58:52 2001
Delivered-To: cvs-all@freebsd.org
Received: from freesbee.wheel.dk (freesbee.wheel.dk [193.162.159.97])
	by hub.freebsd.org (Postfix) with ESMTP
	id 0A2CD37B43C; Wed,  2 May 2001 17:58:45 -0700 (PDT)
	(envelope-from ncbp@bank-pedersen.dk)
Received: by freesbee.wheel.dk (Postfix, from userid 1002)
	id 16C4C5D60; Thu,  3 May 2001 02:58:48 +0200 (CEST)
Date: Thu, 3 May 2001 02:58:48 +0200
From: "Niels Chr. Bank-Pedersen" <ncbp@bank-pedersen.dk>
To: David Malone <dwmalone@maths.tcd.ie>
Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/lib/libkvm kvm_proc.c
Message-ID: <20010503025847.L17327@bank-pedersen.dk>
Mail-Followup-To: "Niels Chr. Bank-Pedersen" <ncbp@bank-pedersen.dk>,
	David Malone <dwmalone@maths.tcd.ie>, cvs-committers@FreeBSD.org,
	cvs-all@FreeBSD.org
References: <200105011034.f41AYGQ01813@freefall.freebsd.org> <20010502004226.K17327@bank-pedersen.dk> <20010502094117.A20469@walton.maths.tcd.ie>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <20010502094117.A20469@walton.maths.tcd.ie>; from dwmalone@maths.tcd.ie on Wed, May 02, 2001 at 09:41:17AM +0100
X-PGP-Fingerprint: 18D0 73F3 767F 3A40 CEBA  C595 4783 D7F5 5DD1 FB8C
X-PGP-Public-Key: http://freesbee.wheel.dk/~ncbp/gpgkey.pub
Sender: owner-cvs-all@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

On Wed, May 02, 2001 at 09:41:17AM +0100, David Malone wrote:
> On Wed, May 02, 2001 at 12:42:27AM +0200, Niels Chr. Bank-Pedersen wrote:
> > Removing the check for size=0 fixes kvm_getprocs in the
> > <user_with_no_processes> case, but unfortunately causes
> > a coredump when the caller requests a nonexisting PID:
> > 
> >   note% ps -p 1234
> >   Floating exception (core dumped)
> > 
> > Don't know how this should be fixed, though.
> 
> I don't see that on a patched machine here:
> 
> 	> ps -p 1234
> 	  PID  TT  STAT      TIME COMMAND
> 
> and it works OK on existing processes too:
> 
> 	> ps -p $$
> 	  PID  TT  STAT      TIME COMMAND
> 	42862  p0  DWs    0:00.20 -tcsh (tcsh)
> 
> can you do some more experimentation and see if you can figure out
> what's going on? (I presume you know that you need to recompile ps
> after recompiling libkvm 'cos ps is statically linked).

Hmm, I guess I asked for trouble:

note# ls -l /etc/malloc.conf
lrwxr-xr-x  1 root  wheel  2  3 Maj 02:55 /etc/malloc.conf -> aj
note# ps -p 1234
Floating exception (core dumped)
note# rm /etc/malloc.conf
note# ps -p 1234
  PID  TT  STAT      TIME COMMAND
note# 


> 	David.


/Niels Chr.

-- 
 Niels Christian Bank-Pedersen, NCB1-RIPE.
 Network Manager, TDC, IP-section.

 "Hey, are any of you guys out there actually *using* RFC 2549?"

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message