Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752340AbdLDWgX (ORCPT ); Mon, 4 Dec 2017 17:36:23 -0500 Received: from mail-it0-f54.google.com ([209.85.214.54]:39466 "EHLO mail-it0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751964AbdLDWgV (ORCPT ); Mon, 4 Dec 2017 17:36:21 -0500 X-Google-Smtp-Source: AGs4zMY8RshtSCxDRiZ3SwOp0Y3ccSscTGZ8RfEJbpcpZ2A6x9EHjTuL/KyVUFYQFJM96yjd0ez5sIztjFK/NvNzIjk= MIME-Version: 1.0 In-Reply-To: <168050887.sZlTFXWCmO@aspire.rjw.lan> References: <168050887.sZlTFXWCmO@aspire.rjw.lan> From: Linus Torvalds Date: Mon, 4 Dec 2017 14:36:20 -0800 X-Google-Sender-Auth: aDkhdb5MrGgpECywm-fkdvR4jBs Message-ID: Subject: Re: Linux 4.15-rc2: Regression in resume from ACPI S3 To: "Rafael J. Wysocki" , Andy Lutomirski Cc: Linux Kernel Mailing List , "the arch/x86 maintainers" Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 885 Lines: 26 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): https://lkml.org/lkml/2017/11/30/546 (also note his follow-up "fix the commit message" note, but that one doesn't actually affect the code itself). Does that patch fix it for you? Linus