From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752034AbdLEA0b (ORCPT ); Mon, 4 Dec 2017 19:26:31 -0500 Received: from cloudserver094114.home.net.pl ([79.96.170.134]:49808 "EHLO cloudserver094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750995AbdLEA0a (ORCPT ); Mon, 4 Dec 2017 19:26:30 -0500 From: "Rafael J. Wysocki" To: Thomas Gleixner Cc: Linus Torvalds , Andy Lutomirski , Linux Kernel Mailing List , the arch/x86 maintainers Subject: Re: Linux 4.15-rc2: Regression in resume from ACPI S3 Date: Tue, 05 Dec 2017 01:25:55 +0100 Message-ID: <1578405.51lzoSX1jh@aspire.rjw.lan> In-Reply-To: <2809506.pL8kVbvXcY@aspire.rjw.lan> References: <2809506.pL8kVbvXcY@aspire.rjw.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday, December 4, 2017 11:41:06 PM CET Rafael J. Wysocki wrote: > On Monday, December 4, 2017 11:38:54 PM CET Thomas Gleixner wrote: > > On Mon, 4 Dec 2017, Linus Torvalds wrote: > > > > > On Mon, Dec 4, 2017 at 2:25 PM, Rafael J. Wysocki wrote: > > > > > > > > So far, resume from suspend-to-RAM (ACPI S3) is broken on all of the > > > > systems I have tested, so it is probably safe to assume it to be > > > > broken everywhere. > > > > > > Oh, it's definitely not broken everywhere, because I use it myself, > > > and was traveling last week due to my mom's bday. > > > > > > HOWEVER. > > > > > > Some of the x86 work seems to have broken it for some configurations. > > > In particular, do you have a big "everything enabled" kernel config - > > > particularly lockdep and irqflags tracing enabled? > > > > > > Andy has a patch, but it hasn't made it to me yet (probably because > > > the x86 people are very busy with the kaiser work): > > This definitely fixes the problem at least on one of the affected machines. I can confirm that the Andy's patch fixes it on all systems that had this issue here. Thanks, Rafael