From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: linux-next: Tree for Jan 7 (rcutorture) Date: Mon, 7 Jan 2013 19:53:48 -0800 Message-ID: <20130108035348.GF2525@linux.vnet.ibm.com> References: <20130107142649.c843e0b711532dc3a631e4cf@canb.auug.org.au> <50EB252C.4010005@infradead.org> <20130107221627.GZ2525@linux.vnet.ibm.com> <20130108095959.98d83d91dbd0e9e1ac023373@canb.auug.org.au> <1357600327.5190.13.camel@gandalf.local.home> <1357605379.5190.15.camel@gandalf.local.home> Reply-To: paulmck@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from e36.co.us.ibm.com ([32.97.110.154]:40358 "EHLO e36.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751523Ab3AHDxy (ORCPT ); Mon, 7 Jan 2013 22:53:54 -0500 Received: from /spool/local by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 7 Jan 2013 20:53:53 -0700 Content-Disposition: inline In-Reply-To: <1357605379.5190.15.camel@gandalf.local.home> Sender: linux-next-owner@vger.kernel.org List-ID: To: Steven Rostedt Cc: Stephen Rothwell , Randy Dunlap , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org On Mon, Jan 07, 2013 at 07:36:19PM -0500, Steven Rostedt wrote: > On Mon, 2013-01-07 at 18:12 -0500, Steven Rostedt wrote: > > On Tue, 2013-01-08 at 09:59 +1100, Stephen Rothwell wrote: > > > Hi Paul, > > > > > > On Mon, 7 Jan 2013 14:16:27 -0800 "Paul E. McKenney" wrote: > > > > > > > > On Mon, Jan 07, 2013 at 11:42:36AM -0800, Randy Dunlap wrote: > > > > > > > > > > on i386 or x86_64: > > > > > > > > > > ERROR: "trace_clock_local" [kernel/rcutorture.ko] undefined! > > > > > > > > Hello, Randy, > > > > > > > > Did your build include the following, also pushed to -next in that same > > > > batch from -rcu? Including Steven Rostedt on CC for his take. > > > > > > That commit was certainly in next-20130107. > > > > Could be bad config dependencies. > > Paul, > > You need to also select TRACE_CLOCK if you are going to use it. Thank you, Steve! Randy, does the following patch help? Thanx, Paul ------------------------------------------------------------------------ diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ce75d3b..b0fe7bd 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1010,6 +1010,7 @@ config RCU_CPU_STALL_INFO config RCU_TRACE bool "Enable tracing for RCU" depends on DEBUG_KERNEL + select TRACE_CLOCK help This option provides tracing in RCU which presents stats in debugfs for debugging RCU implementation.