From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756918AbZGIV7u (ORCPT ); Thu, 9 Jul 2009 17:59:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755651AbZGIV7h (ORCPT ); Thu, 9 Jul 2009 17:59:37 -0400 Received: from www.tglx.de ([62.245.132.106]:37927 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754577AbZGIV7g (ORCPT ); Thu, 9 Jul 2009 17:59:36 -0400 Message-Id: <20090709215455.703939259@linutronix.de> User-Agent: quilt/0.47-1 Date: Thu, 09 Jul 2009 21:59:18 -0000 From: Thomas Gleixner To: netdev@vger.kernel.org Cc: LKML , David Miller , Patrick McHardy , Peter Zijlstra Subject: [patch 0/3] net: Sanitizing hrtimer usage in net/sched/sch_cbq.c Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org While looking at the "Soft-Lockup/Race in networking in 2.6.31-rc1+195 ( possibly caused by netem)" issue (http://lkml.org/lkml/2009/7/2/519) I noticed some serious problems in the hrtimer related code of net/sched/sched/sch_cbq.c. The following patch series addresses these. I'm not entirely sure whether patch [1/3] covers all possible concurrent modifications, but it fixes the most obvious ones. The remaining details are left to the networking experts. Patches [1/3] and [2/3] might be stable material as well. Thanks, tglx