From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753388AbdHWHBb (ORCPT ); Wed, 23 Aug 2017 03:01:31 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:59386 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753238AbdHWHBa (ORCPT ); Wed, 23 Aug 2017 03:01:30 -0400 Date: Wed, 23 Aug 2017 09:01:04 +0200 (CEST) From: Thomas Gleixner To: jeffy cc: Nicholas Piggin , akpm@linux-foundation.org, John Stultz , Stephen Boyd , Jonathan.Cameron@huawei.com, paulmck@linux.vnet.ibm.com, mpe@ellerman.id.au, dzickus@redhat.com, sfr@canb.auug.org.au, linuxarm@huawei.com, abdhalee@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org Subject: Re: [v2] timers: Fix excessive granularity of new timers after a nohz idle In-Reply-To: <599CF4C4.2070703@rock-chips.com> Message-ID: References: <20170822084348.21436-1-npiggin@gmail.com> <599CF4C4.2070703@rock-chips.com> 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 On Wed, 23 Aug 2017, jeffy wrote: > Hi guys, > > I was testing a arm64 based device(chromebook bob), and the kernel hang a > lot(during booting or suspending) on for-next(next-20170822) with this commit: > 71acb768f5b3 (timers: Fix excessive granularity of new timers after a nohz > idle) > > After revert it(or just add "!base->is_idle" check back), things work well... Can you please test V2? Thanks, tglx