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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A255C433F5 for ; Wed, 9 Mar 2022 17:53:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235683AbiCIRyX (ORCPT ); Wed, 9 Mar 2022 12:54:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235576AbiCIRyV (ORCPT ); Wed, 9 Mar 2022 12:54:21 -0500 Received: from granite.fifsource.com (granite.fifsource.com [173.255.216.206]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04B7E7666A for ; Wed, 9 Mar 2022 09:53:19 -0800 (PST) Received: from ceramic.fifi.org (107-142-44-66.lightspeed.sntcca.sbcglobal.net [107.142.44.66]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by granite.fifsource.com (Postfix) with ESMTPSA id 77F384076; Wed, 9 Mar 2022 09:53:19 -0800 (PST) Message-ID: <427c153f2d34997e2131bdeb0fe851c74083f21a.camel@fifi.org> Subject: Re: Bisected regression: 4287509b4d21 causes HP Spectre 14t-ea100 to overheat while suspended From: Philippe Troin To: "Rafael J. Wysocki" Cc: linux-kernel@vger.kernel.org, Linux PM , linux-acpi@vger.kernel.org Date: Wed, 09 Mar 2022 09:53:19 -0800 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 (3.42.4-1.fc35) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2022-03-09 at 16:21 +0100, Rafael J. Wysocki wrote: > On 3/9/2022 4:50 AM, Philippe Troin wrote: > > Linux 5.16.9 was working fine, but starting with 5.16.10 my main laptop > > has been overheating while suspended. > > I've also tried 5.16.11, 5.16.12 and 5.16.13 and they also show the > > same issue (overheating while suspended). > > > > I could not spot any difference between the dmesg messages issued > > during suspend between a working version (5.16.9) and the the broken > > ones (5.16.1[0-3]). > > > > I've bisected the regression down to commit 4287509b4d21 > > https://lore.kernel.org/lkml/20220214092510.074083242@linuxfoundation.org/ > > > > I have also tried reverting that change on top of 5.16.12, and the > > overheating behavior is gone. > > OK, so it is not clear if this is a regression in -stable only or in the > mainline. > > Would it be possible to try 5.17-rc7 and see if the issue is still there? Tried 5.17-rc7, and the issue is not appearing when running it (the laptop does not overheat when suspended). So it looks like the problem only appears on the 5.16 branch, starting on 4287509b4d21. Phil.