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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 46FC6C32750 for ; Tue, 13 Aug 2019 21:22:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 23C5220842 for ; Tue, 13 Aug 2019 21:22:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726941AbfHMVWI (ORCPT ); Tue, 13 Aug 2019 17:22:08 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:34062 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726102AbfHMVWH (ORCPT ); Tue, 13 Aug 2019 17:22:07 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 8B47280848; Tue, 13 Aug 2019 23:21:52 +0200 (CEST) Date: Tue, 13 Aug 2019 23:22:04 +0200 From: Pavel Machek To: Eric Blau Cc: linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , linux-pm@vger.kernel.org Subject: Re: [Regression] MacBook Pro - suspend does not power off - reaches dangerously hot temps Message-ID: <20190813212204.GA14654@amd> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ReaqsoxgOBHFXBhH" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --ReaqsoxgOBHFXBhH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! You may want to cc maintainers... M: "Rafael J. Wysocki" M: Pavel Machek L: linux-pm@vger.kernel.org > I have a MacBook Pro 12,1 model where I've hit a regression since > upgrading to 5.2.x. When I enter hybrid-sleep mode with "systemctl > hybrid-sleep", the laptop appears to enter suspend (screen turns off > and keyboard backlights go out) but actually is still on with the CPU > fan powered off. >=20 > When I first noticed this, I had put my laptop away in my bag and > noticed it got extremely hot to the point of being dangerously close > to a fire hazard. It was too hot to touch and would not resume > successfully either from suspend or, after powering off, from > hibernate. If you are able to push the CPU over 100C, it is a hardware bug. Hardware should protect itself. > I've had no issues on 5.1 through 5.1.16 but every version of 5.2.x > I've tried (5.2 through 5.2.8) has exhibited this problem. Is there a > known regression in suspend handling in the kernel? I noticed some > traffic about suspend and NVMe devices but I do not have an NVMe > drive. >=20 > If nobody else has reported this issue, I would be glad to do a bisect > to help resolve it. You may want to try latest 5.3-rc and -next... And perform basic debugging such as making sure that normal suspend works and normal poweroff works. But yes, if you can bisect it, it will make stuff easy... Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --ReaqsoxgOBHFXBhH Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl1TKfwACgkQMOfwapXb+vLwQQCeIKWWTjWb5sq6glJ4XSkYyVSm yzkAnAlqlQbWuqVZ93/XoffeK7yTEEf9 =bmFZ -----END PGP SIGNATURE----- --ReaqsoxgOBHFXBhH--