Re: hung tasks in 3.18.0-rc1-00221-gc3351df

Paul E. McKenney
2014-10-28T20:26:49Z

On Tue, Oct 28, 2014 at 09:48:21PM +0200, Meelis Roos wrote:
> > > > rcu: Make rcu_barrier() understand about missing rcuo kthreads
> > >
> > > I can not trigger the previous problem at will so my testing is not very
> > > useful. I tested the previous patch that you sent but the problem did
> > > not trigger, and yesterday applied this one and it still does not
> > > trigger, but I an using remote sessions only for now (no desktop).
> > >
> > > At least it's not clearly broken :)
> >
> > A couple of other people had more reproducible test setups and confirmed
> > that it fixed them.
> >
> > But yes, there are no doubt other RCU bugs waiting to be found. ;-)
>
> I reproduced the problem on Thinkpad T400 with Core2Duo and Chromium
> startup failing, and your patch fixes that.
>
> Tested-by: Meelis Roos <mroos@linux.ee>

Got it, thank you!!!

Thanx, Paul