Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752062AbdLFMXh (ORCPT ); Wed, 6 Dec 2017 07:23:37 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:43734 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751944AbdLFMXg (ORCPT ); Wed, 6 Dec 2017 07:23:36 -0500 Date: Wed, 6 Dec 2017 13:23:34 +0100 (CET) From: Thomas Gleixner To: Michal Hocko cc: Linus Torvalds , "Rafael J. Wysocki" , Andy Lutomirski , Linux Kernel Mailing List , the arch/x86 maintainers Subject: Re: Linux 4.15-rc2: Regression in resume from ACPI S3 In-Reply-To: <20171206121452.GA6320@dhcp22.suse.cz> Message-ID: References: <168050887.sZlTFXWCmO@aspire.rjw.lan> <20171206121452.GA6320@dhcp22.suse.cz> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1959 Lines: 50 On Wed, 6 Dec 2017, Michal Hocko wrote: > merging tip/x86/urgent on top of your tree fixed this problem for me, > but I am seeing something else > [ 131.711412] ACPI: Preparing to enter system sleep state S3 > [ 131.755328] ACPI: EC: event blocked > [ 131.755328] ACPI: EC: EC stopped > [ 131.755328] PM: Saving platform NVS memory > [ 131.755344] Disabling non-boot CPUs ... > [ 131.779330] IRQ 124: no longer affine to CPU1 > [ 131.780334] smpboot: CPU 1 is now offline > [ 131.804465] smpboot: CPU 2 is now offline > [ 131.827291] IRQ 122: no longer affine to CPU3 > [ 131.827292] IRQ 123: no longer affine to CPU3 > [ 131.828293] smpboot: CPU 3 is now offline > [ 131.830991] ACPI: Low-level resume complete > [ 131.831092] ACPI: EC: EC started > [ 131.831093] PM: Restoring platform NVS memory > [ 131.831864] do_IRQ: 0.55 No irq handler for vector Hmm, that's really odd. > [ 131.831884] Enabling non-boot CPUs ... > [ 131.831909] x86: Booting SMP configuration: > [ 131.831910] smpboot: Booting Node 0 Processor 1 APIC 0x2 > [ 131.832913] cache: parent cpu1 should not be sleeping This is an old one. > [ 131.833058] CPU1 is up > [ 131.833067] smpboot: Booting Node 0 Processor 2 APIC 0x1 > [ 131.833864] cache: parent cpu2 should not be sleeping > [ 131.833983] CPU2 is up > [ 131.833995] smpboot: Booting Node 0 Processor 3 APIC 0x3 > [ 131.834776] cache: parent cpu3 should not be sleeping > [ 131.834923] CPU3 is up > > "No irq handler" part looks a bit scary (maybe related to lost affinity > messages?) but the following messages look quite as well. Is this > something known? The system seems to be up and running without any > visible issues. I assume it's due to the affinity break, just that we don't know right now on which CPU that do_IRQ() message triggered. I assume it's CPU0 because the others are offline already, but .... I'll think about it how we can figure out what's going on. Thanks, tglx