Re: linux-next: build failure after merge of the rcu tree

Stephen Rothwell
2015-09-02T03:58:00Z

Hi Paul,

On Tue, 1 Sep 2015 00:49:46 -0700 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
>
> On Tue, Sep 01, 2015 at 01:50:06PM +1000, Stephen Rothwell wrote:
> >
> > 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!

This still fails to build but now I only get the error about
sched_setscheduler_nocheck.

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au