From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754967AbbIAHtx (ORCPT ); Tue, 1 Sep 2015 03:49:53 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:52941 "EHLO e38.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754378AbbIAHtv (ORCPT ); Tue, 1 Sep 2015 03:49:51 -0400 X-Helo: d03dlp01.boulder.ibm.com X-MailFrom: paulmck@linux.vnet.ibm.com X-RcptTo: linux-next@vger.kernel.org Date: Tue, 1 Sep 2015 00:49:46 -0700 From: "Paul E. McKenney" To: Stephen Rothwell Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: Re: linux-next: build failure after merge of the rcu tree Message-ID: <20150901074946.GF4029@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20150901135006.78be270e@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150901135006.78be270e@canb.auug.org.au> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15090107-0029-0000-0000-00000C507982 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 01, 2015 at 01:50:06PM +1000, Stephen Rothwell wrote: > Hi Paul, > > After merging the rcu tree, today's linux-next build (x86_64 allmodconfig) > failed like this: > > ERROR: "sched_setscheduler_nocheck" [kernel/locking/locktorture.ko] undefined! > ERROR: "percpu_down_write" [kernel/locking/locktorture.ko] undefined! > ERROR: "percpu_up_write" [kernel/locking/locktorture.ko] undefined! > ERROR: "percpu_down_read" [kernel/locking/locktorture.ko] undefined! > ERROR: "percpu_up_read" [kernel/locking/locktorture.ko] undefined! > ERROR: "__percpu_init_rwsem" [kernel/locking/locktorture.ko] undefined! > > Caused by commits > > 04be76a9b067 ("locktorture: Support rtmutex torturing") > 40b2996f9b32 ("locktorture: Add torture tests for percpu_rwsem") > > and maybe more. > > I have used the rcu tree from next-20150831 for today. It is looking like I will be deferring these to v4.4, apologies for the hassle! Thanx, Paul