Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752537AbdGMLu3 (ORCPT ); Thu, 13 Jul 2017 07:50:29 -0400 Received: from mail-it0-f51.google.com ([209.85.214.51]:37976 "EHLO mail-it0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751487AbdGMLu1 (ORCPT ); Thu, 13 Jul 2017 07:50:27 -0400 MIME-Version: 1.0 In-Reply-To: References: <20170713070749.GE16509@atomide.com> From: "Rafael J. Wysocki" Date: Thu, 13 Jul 2017 13:50:26 +0200 X-Google-Sender-Auth: MlzMOoXwSku8cUdb2GLTb126uao Message-ID: Subject: Re: Regression with suspicious RCU usage splats with cpu_pm change To: Alex Shi , Tony Lindgren Cc: "Paul E. McKenney" , Linux Kernel Mailing List , Linux PM , Linux OMAP Mailing List , Catalin Marinas , Will Deacon 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: 409 Lines: 14 On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: > > On 07/13/2017 03:07 PM, Tony Lindgren wrote: >> Hi, >> >> Looks like next-20170713 gives me a bunch of "suspicious RCU usage" >> splats with cpuidle_coupled on duovero, see below. I bisected it down >> to commit 2f027e003d05 ("cpu_pm: replace raw_notifier with >> atomic_notifier"). OK, so I'm dropping this commit. Thanks, Rafael