From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754617AbeDWJ1u (ORCPT ); Mon, 23 Apr 2018 05:27:50 -0400 Received: from cloudserver094114.home.pl ([79.96.170.134]:46635 "EHLO cloudserver094114.home.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754542AbeDWJ1q (ORCPT ); Mon, 23 Apr 2018 05:27:46 -0400 From: "Rafael J. Wysocki" To: Peter Zijlstra Cc: Diego Viola , linux-kernel@vger.kernel.org, tglx@linutronix.de, len.brown@intel.com, rui.zhang@intel.com, linux-pm@vger.kernel.org Subject: Re: Experiencing freezes with kernel 4.16.3 on a desktop with E5500 CPU (bisect included) Date: Mon, 23 Apr 2018 11:27:36 +0200 Message-ID: <2120072.1825pzNyX4@aspire.rjw.lan> In-Reply-To: <20180423091633.GU4064@hirez.programming.kicks-ass.net> References: <20180423091633.GU4064@hirez.programming.kicks-ass.net> 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, April 23, 2018 11:16:33 AM CEST Peter Zijlstra wrote: > On Sat, Apr 21, 2018 at 11:19:55PM -0300, Diego Viola wrote: > > > The problem only happens *after* resuming from suspend, in normal S0 > > state it never happens. > > What kind of suspend are you doing? s2disk, s2ram ? > > > My machine is a desktop and has a dual core E5500 CPU with 2GB of RAM, > > I run Arch Linux and I use the i3wm. > > That's a Core2 era chip; does it actually have stable TSC ? > > > aa83c45762a242acce9b35020363225a7b59d7c9 is the first bad commit > > That is most curious; that was supposed to only affect early boot. I'll > try and figure out of there's some intersection with suspend. Well, FWIW, I wonder if the flags that were set in init_tsc_clocksource() for unstable TSC before the above commit may be involved in this somehow.