From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamal Subject: Re: hard hang through qdisc Date: Thu, 31 Jan 2008 07:34:01 -0500 Message-ID: <1201782841.4732.11.camel@localhost> References: <200801311321.01015.ak@suse.de> Reply-To: hadi@cyberus.ca Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Andi Kleen Return-path: Received: from py-out-1112.google.com ([64.233.166.183]:13005 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755006AbYAaN07 (ORCPT ); Thu, 31 Jan 2008 08:26:59 -0500 Received: by py-out-1112.google.com with SMTP id u52so996192pyb.10 for ; Thu, 31 Jan 2008 05:26:57 -0800 (PST) In-Reply-To: <200801311321.01015.ak@suse.de> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, 2008-31-01 at 13:21 +0100, Andi Kleen wrote: > > I just managed to hang a 2.6.24 (+ some non network patches) kernel > with the following (non sensical) command > > tc qdisc add dev eth0 root tbf rate 1000 burst 10 limit 100 > > No oops or anything just hangs. While I understand root can > do bad things just hanging like this seems a little extreme. > --------- lilsol:~# tc qdisc add dev eth0 root tbf rate 1000 burst 10 limit 100 lilsol:~# uname -a Linux lilsol 2.6.24 #1 PREEMPT Sun Jan 27 09:22:00 EST 2008 i686 GNU/Linux lilsol:~# tc qdisc ls dev eth0 qdisc tbf 8001: root rate 1000bit burst 10b lat 737.3ms lilsol:~# ------- What do your patches do? cheers, jamal