From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: Re: 2.6.33.6-rt28 kernel oops while stressing network Date: Fri, 27 Aug 2010 12:33:44 +0200 (CEST) Message-ID: References: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: linux-rt-users@vger.kernel.org To: John Culvertson Return-path: Received: from www.tglx.de ([62.245.132.106]:54427 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751291Ab0H0Kdt (ORCPT ); Fri, 27 Aug 2010 06:33:49 -0400 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: John, On Wed, 11 Aug 2010, John Culvertson wrote: > I updated to 2.6.33.7-rt29, and I am seeing similar symptoms. > > [ 2120.781166] BUG: unable to handle kernel paging request at c11cd497 > [ 2120.784018] IP: [] tcp_set_skb_tso_segs+0x33/0x85 can you please try to reproduce the problem with the function tracer enabled ? Make sure that /proc/sys/kernel/ftrace_dump_on_oops is set to 1. When the bug reproduces the kernel will spill out the trace over the serial console, which will take a while but should show us what's going on. Thanks, tglx