From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E3C8C433DF for ; Wed, 17 Jun 2020 14:27:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2744B207DD for ; Wed, 17 Jun 2020 14:27:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726328AbgFQO1l (ORCPT ); Wed, 17 Jun 2020 10:27:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725901AbgFQO1k (ORCPT ); Wed, 17 Jun 2020 10:27:40 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BB2E5C06174E; Wed, 17 Jun 2020 07:27:40 -0700 (PDT) Received: from bigeasy by Galois.linutronix.de with local (Exim 4.80) (envelope-from ) id 1jlZ2M-0002bW-7s; Wed, 17 Jun 2020 16:27:34 +0200 Date: Wed, 17 Jun 2020 16:27:34 +0200 From: Sebastian Andrzej Siewior To: Stephen Berman Cc: Thomas Gleixner , Peter Zijlstra , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: Re: power-off delay/hang due to commit 6d25be57 (mainline) Message-ID: <20200617142734.mxwfoblufmo6li5e@linutronix.de> References: <20200612110122.jossn5zrktcvpbpm@linutronix.de> <87tuzdrgm5.fsf@gmx.net> <20200614171005.3zy673p6bpwoqnmq@linutronix.de> <874krcsquv.fsf@gmx.net> <20200615145130.bcdidqkp6w23xb6c@linutronix.de> <87tuzbh482.fsf@gmx.net> <20200616073827.vysntufld3ves666@linutronix.de> <87o8pjh1i0.fsf@gmx.net> <20200616155501.psduxnisltitodme@linutronix.de> <871rmesqkk.fsf@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <871rmesqkk.fsf@gmx.net> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On 2020-06-16 22:28:43 [+0200], Stephen Berman wrote: > Your assessment and predictions are right on the mark! perfect. > I'm fine with the thermal.tzp=300 workaround, but it would be good to > find out why this problem started with commit 6d25be57, if my git > bisection was correct, or if it wasn't, then at least somewhere between > 5.1.0 and 5.2.0. Or can you already deduce why? If not, I'd be more > than happy to continue applying any patches or trying any suggestions > you have, if you want to continue debugging this issue. In any case, > thanks for pursuing it to this point. I have no idea why the commit in question should make any difference. Could please apply the tracing patch on v5.1 and send the trace? > Steve Berman Sebastian