From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarek Poplawski Subject: Re: [Bugme-new] [Bug 11571] New: u32_classify Kernel Panic Date: Thu, 18 Sep 2008 07:53:51 +0000 Message-ID: <20080918075351.GA4633@ff.dom.local> References: <20080917193832.GA2623@ami.dom.local> <48D1FDB8.4040805@plotinka.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andrew Morton , netdev@vger.kernel.org, bugme-daemon@bugzilla.kernel.org To: m0sia Return-path: Received: from nf-out-0910.google.com ([64.233.182.189]:41022 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752710AbYIRHx5 (ORCPT ); Thu, 18 Sep 2008 03:53:57 -0400 Received: by nf-out-0910.google.com with SMTP id d3so1966351nfc.21 for ; Thu, 18 Sep 2008 00:53:56 -0700 (PDT) Content-Disposition: inline In-Reply-To: <48D1FDB8.4040805@plotinka.ru> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, Sep 18, 2008 at 01:05:28PM +0600, m0sia wrote: ... >>>> http://bugzilla.kernel.org/show_bug.cgi?id=11571 >>>> >>>> Summary: u32_classify Kernel Panic ... > It happens on a production server and i can't experiment with this bug. > Now i'm using MARK iptable target and fw mark filter, because of this > bug. I think it happens when deleting or adding filters(it occur > automatically by script, when adding new user or user change speed). > I'll try this patch on test server. OK, no hurry. BTW, it looks like some traffic is needed in a qdisc while its filters are modified to trigger this. Probably, turning off CONFIG_CLS_U32_PERF can make this less visible. On the other hand, turning on memory debugging: CONFIG_DEBUG_SLAB or CONFIG_SLUB_DEBUG_ON should be helpful here. Jarek P.