From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [BUG] linux-2.6.26.7 : loading of sch_cbq is stuck Date: Tue, 04 Nov 2008 15:31:38 +0100 Message-ID: <49105CCA.1040903@cosmosbay.com> References: <491027B9.2090403@cosmosbay.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Linux Netdev List , Jarek Poplawski To: Eric Dumazet Return-path: Received: from gw1.cosmosbay.com ([86.65.150.130]:34587 "EHLO gw1.cosmosbay.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752238AbYKDObw convert rfc822-to-8bit (ORCPT ); Tue, 4 Nov 2008 09:31:52 -0500 In-Reply-To: <491027B9.2090403@cosmosbay.com> Sender: netdev-owner@vger.kernel.org List-ID: Eric Dumazet a =E9crit : > Hi all >=20 > Just found this problem on linux-2.6.26.7 when trying to add cbq on e= th0 >=20 > /proc/modules hangs too >=20 > root 12117 0.0 0.0 1560 360 pts/1 D+ 11:07 0:00 lsmo= d > root 10361 0.0 0.0 1996 696 pts/0 D+ 11:05 0:00 tc=20 > qdisc add dev eth0 root handle 1: cbq avpkt 1000 rate 100Mbit bandwid= th=20 > 100Mbit > root 10362 0.0 0.0 0 0 ? S< 11:05 0:00 [khe= lper] > root 10363 0.0 0.0 1592 588 ? R 11:05 0:00=20 > /sbin/modprobe -q -- sch_cbq > root 10364 0.0 0.0 0 0 ? S< 11:05 0:00=20 > [kstopmachine] > root 10365 0.0 0.0 0 0 ? Z< 11:05 0:00=20 > [kstopmachine] > root 10366 0.0 0.0 0 0 ? Z< 11:05 0:00=20 > [kstopmachine] > root 10367 0.0 0.0 0 0 ? Z< 11:05 0:00=20 > [kstopmachine] >=20 Well, the answer is : I had a realtime user process that was looping. Killing it one hour later solved the problem and unlocked all blocked tasks. Dont let users run realtime, better let them access hard-reset button..= =2E