Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756965Ab2EXTLy (ORCPT ); Thu, 24 May 2012 15:11:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:64580 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752485Ab2EXTLx (ORCPT ); Thu, 24 May 2012 15:11:53 -0400 Date: Thu, 24 May 2012 15:11:47 -0400 From: Dave Jones To: Steven Rostedt Cc: Linux Kernel , Frederic Weisbecker , Ingo Molnar Subject: Re: tracing ring_buffer_resize oops. Message-ID: <20120524191147.GA13936@redhat.com> Mail-Followup-To: Dave Jones , Steven Rostedt , Linux Kernel , Frederic Weisbecker , Ingo Molnar References: <20120524160146.GA6226@redhat.com> <1337876398.13348.178.camel@gandalf.stny.rr.com> <20120524172223.GA10689@redhat.com> <1337880914.13348.189.camel@gandalf.stny.rr.com> <20120524184728.GA13201@redhat.com> <1337885672.13348.194.camel@gandalf.stny.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1337885672.13348.194.camel@gandalf.stny.rr.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1264 Lines: 34 On Thu, May 24, 2012 at 02:54:32PM -0400, Steven Rostedt wrote: > On Thu, 2012-05-24 at 14:47 -0400, Dave Jones wrote: > > On Thu, May 24, 2012 at 01:35:14PM -0400, Steven Rostedt wrote: > > > > > Hmm, I wonder if this is the break point change :-/ > > > > > > Do you have NMIs enabled? I didn't have 'paranoid_exit' in my backtrace > > > when I saw the bug. > > > > $ grep NMI .config > > CONFIG_OPROFILE_NMI_TIMER=y > > CONFIG_HAVE_PERF_EVENTS_NMI=y > > CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y > > CONFIG_HPWDT_NMI_DECODING=y > > # CONFIG_DEBUG_NMI_SELFTEST is not set > > Could you email your entire config. I haven't been able to trigger the > bug again. Maybe your config might do it :-/ http://fpaste.org/BTN7/raw/ > Also, how reproducible is it? When it triggered for me, it was constant. > Every boot and test failed. But after I did the make mrproper, I have > not been able to trigger it again. This is why I put it down as a bad > build. happens every time for me so far. Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/