From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752260Ab1IZS0l (ORCPT ); Mon, 26 Sep 2011 14:26:41 -0400 Received: from e6.ny.us.ibm.com ([32.97.182.146]:50600 "EHLO e6.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752045Ab1IZS0j (ORCPT ); Mon, 26 Sep 2011 14:26:39 -0400 Date: Mon, 26 Sep 2011 11:26:29 -0700 From: "Paul E. McKenney" To: Frederic Weisbecker Cc: LKML , Ingo Molnar , Thomas Gleixner , Peter Zijlstra , "H. Peter Anvin" , Andy Henroid , Mike Frysinger , Guan Xuetao , David Miller , Chris Metcalf , Hans-Christian Egtvedt , Ralf Baechle , Russell King , Paul Mackerras , Heiko Carstens , Paul Mundt , Lai Jiangshan Subject: Re: [PATCH 0/7 v4] rcu: Fix some rcu uses in extended quiescent state Message-ID: <20110926182629.GI2399@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <1317032352-25571-1-git-send-email-fweisbec@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1317032352-25571-1-git-send-email-fweisbec@gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 26, 2011 at 12:19:05PM +0200, Frederic Weisbecker wrote: > Hi Paul, > > Two fixes added in that set, the first two patches: > > - The check on uses under extended quiescent states was buggy > - One more illegal use of RCU fixed, from inside tick_nohz_stop_sched_tick() > > It has survived one day and one night of rcutorture in x86-64 > with periodic cpu hotplug onlining/offlining... Very good! I have queued these and pushed them to -rcu on github (https://github.com/paulmckrcu/linux) branch rcu/dynticks. Some of the Power boxes are now back in the land of the living, and will hopefully work their way through their testing backlogs some time soon. ;-) At which point, I will restart PowerPC testing. Thanx, Paul > No test in powerpc yet though... So I don't know yet why > you got an rcutorture failure. > > Frederic Weisbecker (7): > rcu: Fix preempt-unsafe debug check of rcu extended quiescent state > rcu: Fix early call to rcu_enter_nohz() on tick stopping > nohz: Separate out irq exit and idle loop dyntick logic > nohz: Allow rcu extended quiescent state handling seperately from > tick stop > x86: Enter rcu extended qs after idle notifier call > x86: Call idle notifier after irq_enter() > rcu: Fix early call to rcu_irq_exit() > > arch/arm/kernel/process.c | 4 +- > arch/avr32/kernel/process.c | 4 +- > arch/blackfin/kernel/process.c | 4 +- > arch/microblaze/kernel/process.c | 4 +- > arch/mips/kernel/process.c | 4 +- > arch/powerpc/kernel/idle.c | 4 +- > arch/powerpc/platforms/iseries/setup.c | 8 +- > arch/s390/kernel/process.c | 4 +- > arch/sh/kernel/idle.c | 4 +- > arch/sparc/kernel/process_64.c | 4 +- > arch/tile/kernel/process.c | 4 +- > arch/um/kernel/process.c | 4 +- > arch/unicore32/kernel/process.c | 4 +- > arch/x86/kernel/apic/apic.c | 6 +- > arch/x86/kernel/apic/io_apic.c | 2 +- > arch/x86/kernel/cpu/mcheck/mce.c | 2 +- > arch/x86/kernel/cpu/mcheck/therm_throt.c | 2 +- > arch/x86/kernel/cpu/mcheck/threshold.c | 2 +- > arch/x86/kernel/irq.c | 6 +- > arch/x86/kernel/process_32.c | 4 +- > arch/x86/kernel/process_64.c | 9 ++- > include/linux/tick.h | 12 ++- > kernel/rcutree.c | 10 ++- > kernel/softirq.c | 4 +- > kernel/time/tick-sched.c | 120 +++++++++++++++++++++--------- > 25 files changed, 147 insertions(+), 88 deletions(-) > > -- > 1.7.5.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/