From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753323AbdK0UU2 (ORCPT ); Mon, 27 Nov 2017 15:20:28 -0500 Received: from smtp1.it.da.ut.ee ([193.40.5.66]:51790 "EHLO smtp1.it.da.ut.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752712AbdK0UU0 (ORCPT ); Mon, 27 Nov 2017 15:20:26 -0500 Date: Mon, 27 Nov 2017 22:20:22 +0200 (EET) From: Meelis Roos To: "Rafael J. Wysocki" cc: Viresh Kumar , Linux PM , Linux Kernel list Subject: Re: 4.14 regression - hang on shutdown (VIA longhaul related?) In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (LRH 202 2017-01-01) 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 > On Mon, Nov 27, 2017 at 4:19 PM, Meelis Roos wrote: > >> > Please try to replace the 10000 in > >> > cpufreq_policy_transition_delay_us() with a greater number (say 20000 > >> > or 50000) and see if that helps. > >> > >> With 50000 it has worked 4 reboots out of 4. > > > > With 20000, it also seems to work 3 out of 3 times. > > OK, please test it a bit more just to be sure. If 20000 is > sufficient, we can easily make this change. Seems stable, 20+ reboots after diferenet uptimes and workloads were all successful. -- Meelis Roos (mroos@linux.ee)