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"
> > > <paul...@linux.vnet.ibm.com> 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.
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