From owner-freebsd-security@FreeBSD.ORG Thu Sep 8 00:21:44 2005 Return-Path: X-Original-To: freebsd-security@freebsd.org Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9330916A427 for ; Thu, 8 Sep 2005 00:21:44 +0000 (GMT) (envelope-from fbsd-security@mawer.org) Received: from mail10.syd.optusnet.com.au (mail10.syd.optusnet.com.au [211.29.132.191]) by mx1.FreeBSD.org (Postfix) with ESMTP id F2C3543D45 for ; Thu, 8 Sep 2005 00:21:41 +0000 (GMT) (envelope-from fbsd-security@mawer.org) Received: from c211-30-90-140.belrs3.nsw.optusnet.com.au (c211-30-246-162.belrs3.nsw.optusnet.com.au [211.30.246.162]) by mail10.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j880Lc98016013 for ; Thu, 8 Sep 2005 10:21:39 +1000 Received: (qmail 74012 invoked from network); 8 Sep 2005 00:21:38 -0000 Received: from unknown (HELO ?127.0.0.1?) (unknown) by unknown with SMTP; 8 Sep 2005 00:21:38 -0000 Message-ID: <431F841A.1060302@mawer.org> Date: Thu, 08 Sep 2005 10:21:46 +1000 From: Antony Mawer User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: nielsen@memberwebs.com References: <431F6941.20006@gmail.com> <20050908001830.6A33270DCDB@mail.npubs.com> In-Reply-To: <20050908001830.6A33270DCDB@mail.npubs.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-security@freebsd.org, talonz Subject: Re: ee using 99% cpu after user ssh session terminates abnormaly X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Sep 2005 00:21:44 -0000 On 8/09/2005 10:18 AM, Nate Nielsen wrote: > talonz wrote: >>Recently i have been using a dialup 56k account to access the net >>and have noticed that when my ssh session times out and I am editing >>a file in ` ee ' the system goes to 99% cpu usage and stays like >>this till the pid is killed. >>This is a standard user account (not root/su) > > This happens all the time on servers I manage. It's a real pain because > it's hard to see the actual load of the machine. We have a dumb hack of > a script that kill these off when they happen. Another "me too" -- usually when we notice our server (running FreeBSD 4.11) starting to crawl, the culprit is an "ee" session using up 99% cpu. I just reproduced it then by logging in via ssh, running "ee" (not opening any file) and then killing the Putty window. Cheers Antony