From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758050AbcHCSan (ORCPT ); Wed, 3 Aug 2016 14:30:43 -0400 Received: from mail-io0-f181.google.com ([209.85.223.181]:34762 "EHLO mail-io0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755555AbcHCSaZ (ORCPT ); Wed, 3 Aug 2016 14:30:25 -0400 MIME-Version: 1.0 In-Reply-To: <20160802121305.64307a8a@gandalf.local.home> References: <20160802113148.6784f2de@gandalf.local.home> <20160802121305.64307a8a@gandalf.local.home> From: karol herbst Date: Wed, 3 Aug 2016 20:24:39 +0200 Message-ID: Subject: Re: mmiotracer hangs the system To: Steven Rostedt Cc: Andy Shevchenko , "linux-kernel@vger.kernel.org" , "Paul E. McKenney" , Ingo Molnar Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hi all, mhhh exactly this commit fixed mmiotrace for me and a few other nouveau devs on x86_64. Also the error log doesn't really show a problem inside the tracer? Maybe it would be helpful to provide full dmesg in the case of error, just to rule silly things out. I will try to figure out how that bug could happen at all. Greetings Karol 2016-08-02 18:13 GMT+02:00 Steven Rostedt : > On Tue, 2 Aug 2016 19:08:24 +0300 > Andy Shevchenko wrote: > >> I don't think so, since linux-next doesn't work until I revert this commit. >> >> I can try exactly v4.6 (yep, I tried stable versions, including >> v4.4.16 that's why all of them failed to me) if you still would like >> me to do so. > > If linux-next doesn't work, then don't bother. > > That commit obviously broke something and you'll probably need help > from Karol to fix it. > > Thanks, > > -- Steve