From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757243AbbIUWH5 (ORCPT ); Mon, 21 Sep 2015 18:07:57 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:51542 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753345AbbIUWH4 (ORCPT ); Mon, 21 Sep 2015 18:07:56 -0400 Message-ID: <56007F02.2070807@oracle.com> Date: Mon, 21 Sep 2015 18:04:50 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: paulmck@linux.vnet.ibm.com CC: linux-kernel@vger.kernel.org, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com Subject: Re: [PATCH tip/core/rcu 14/19] rcu: Extend expedited funnel locking to rcu_data structure References: <20150717232901.GA22511@linux.vnet.ibm.com> <1437175764-24096-1-git-send-email-paulmck@linux.vnet.ibm.com> <1437175764-24096-14-git-send-email-paulmck@linux.vnet.ibm.com> <55FEC99A.7050506@oracle.com> <20150921041244.GF4029@linux.vnet.ibm.com> In-Reply-To: <20150921041244.GF4029@linux.vnet.ibm.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/21/2015 12:12 AM, Paul E. McKenney wrote: > Hmmm... I created rdp->exp_funnel_mutex, but failed to give RCU-sched > its own lock class. Does the following untested patch fix things for you? Haven't reproduced yet, but it didn't happen that often before - let's give it another day or two of testing? Thanks, Sasha