Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752327Ab2KDAx1 (ORCPT ); Sat, 3 Nov 2012 20:53:27 -0400 Received: from mail-qa0-f53.google.com ([209.85.216.53]:55589 "EHLO mail-qa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750870Ab2KDAx0 (ORCPT ); Sat, 3 Nov 2012 20:53:26 -0400 Message-ID: <5095BC6E.2010505@gmail.com> Date: Sat, 03 Nov 2012 20:53:02 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121024 Thunderbird/16.0.1 MIME-Version: 1.0 To: Jiri Slaby CC: Jiri Slaby , gregkh@linuxfoundation.org, alan@linux.intel.com, linux-kernel@vger.kernel.org, Dave Jones Subject: Re: [PATCH 21/21] TTY: move tty buffers to tty_port References: <1350592007-9216-1-git-send-email-jslaby@suse.cz> <1350592007-9216-22-git-send-email-jslaby@suse.cz> <50897E98.5080502@gmail.com> <50911F67.3040303@suse.cz> <5091448D.3@suse.cz> <5093EC1B.2050800@suse.cz> <5093F262.6000301@suse.cz> <50947B7B.8080601@gmail.com> <50953E8D.9000504@suse.cz> <5095A384.5080205@gmail.com> In-Reply-To: <5095A384.5080205@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2048 Lines: 59 On 11/03/2012 07:06 PM, Sasha Levin wrote: > On 11/03/2012 11:55 AM, Jiri Slaby wrote: >> On 11/03/2012 03:03 AM, Sasha Levin wrote: >>> On 11/02/2012 12:18 PM, Jiri Slaby wrote: >>>> On 11/02/2012 05:07 PM, Sasha Levin wrote: >>>>> On Fri, Nov 2, 2012 at 11:51 AM, Jiri Slaby wrote: >>>>>> On 10/31/2012 04:59 PM, Sasha Levin wrote: >>>>>>> So you probably want a lot more than 100k syscalls, why limit it at >>>>>>> all actually? >>>>>> >>>>>> I unset the limit but I still can't reproduce... >>>>>> >>>>>>> I've attached my .config for the guest kernel as reference. >>>>>> >>>>>> Even using this config does not help to reproduce that. >>>>>> >>>>>> Do you use some special trinity params? >>>>> >>>>> Not really: >>>>> >>>>> ./trinity -m --quiet --dangerous -l off >>>> >>>> Oh, you run that as root?? >>>> >>>>> Can I add something to my kernel to provide more info when it happens? >>>> >>>> Maybe the attached patch can tell us more... >>>> >>> >>> Nope, I see the warnings mentioned before, without the new 'HUH' warnings. >> >> Actually it does. It is exactly as you wrote some time earlier. The work >> is scheduled after is was cancelled and should not trigger anymore. Or, >> it is scheduled before it is supposed to do. Could you try the attached >> patch and report what happens with that patch? >> >> PS I can't reproduce by whatever I tried. >> >> thanks, >> > > Interesting... > > [ 388.783955] tty is bad=0 ops= (null)Pid: 6480, comm: kworker/1:2 Tainted: G W > 3.7.0-rc3-next-20121102-sasha-00002-gbb570e0-dirty #111 So after fuzzing for a while I'm also seeing these: [ 603.533932] tty is bad=-2 ops= (null)Pid: 37, comm: kworker/4:0 Tainted: G W 3.7.0-rc3-next-20121102-sasha-000 02-gbb570e0-dirty #112 Thanks, Sasha -- 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/