Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751683AbWCJWGz (ORCPT ); Fri, 10 Mar 2006 17:06:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751611AbWCJWGz (ORCPT ); Fri, 10 Mar 2006 17:06:55 -0500 Received: from Mail.MNSU.EDU ([134.29.1.12]:37007 "EHLO mail.mnsu.edu") by vger.kernel.org with ESMTP id S1751283AbWCJWGy (ORCPT ); Fri, 10 Mar 2006 17:06:54 -0500 Message-ID: <4411F87B.2070902@mnsu.edu> Date: Fri, 10 Mar 2006 16:06:51 -0600 From: Jeffrey Hundstad User-Agent: Debian Thunderbird 1.0.7 (X11/20051017) X-Accept-Language: en-us, en MIME-Version: 1.0 To: =?ISO-8859-1?Q?M=E5ns_Rullg=E5rd?= CC: linux-kernel@vger.kernel.org Subject: Re: can I bring Linux down by running "renice -20 cpu_intensive_process"? References: <441180DD.3020206@wpkg.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 920 Lines: 36 M?ns Rullg?rd wrote: >Jan Engelhardt writes: > > > >>>Subject: can I bring Linux down by running "renice -20 >>>cpu_intensive_process"? >>> >>> >>> >>Depends on what the cpu_intensive_process does. If it tries to allocate >>lots of memory, maybe. If it's _just_ CPU (as in `perl -e '1 while 1'`), >>you get a chance that you can input some commands on a terminal to kill it. >>SCHED_FIFO'ing or SCHED_RR'ing such a process is sudden death of course. >> >> > >Sysrq+n changes all realtime tasks to normal priority. > > > Patient: "Doctor When I poke myself in the eye it hurts." Doctor "Don't do that then." -- Jeffrey Hundstad - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/