Messages in this thread | | | Date | Fri, 24 Oct 2014 11:33:23 -0700 | From | "Paul E. McKenney" <> | Subject | Re: localed stuck in recent 3.18 git in copy_net_ns? |
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On Fri, Oct 24, 2014 at 11:20:11AM -0700, Jay Vosburgh wrote: > Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > > >On Thu, Oct 23, 2014 at 09:48:34PM -0700, Jay Vosburgh wrote: > >> Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > [...] > >> >Either way, my patch assumed that 39953dfd4007 (rcu: Avoid misordering in > >> >__call_rcu_nocb_enqueue()) would work and that 1772947bd012 (rcu: Handle > >> >NOCB callbacks from irq-disabled idle code) would fail. Is that the case? > >> >If not, could you please bisect the commits between 11ed7f934cb8 (rcu: > >> >Make nocb leader kthreads process pending callbacks after spawning) > >> >and c847f14217d5 (rcu: Avoid misordering in nocb_leader_wait())? > >> > >> Just a note to add that I am also reliably inducing what appears > >> to be this issue on a current -net tree, when configuring openvswitch > >> via script. I am available to test patches or bisect tomorrow (Friday) > >> US time if needed. > > > >Thank you, Jay! Could you please check to see if reverting this commit > >fixes things for you? > > > >35ce7f29a44a rcu: Create rcuo kthreads only for onlined CPUs > > > >Reverting is not a long-term fix, as this commit is itself a bug fix, > >but would be good to check to see if you are seeing the same thing that > >Yanko is. ;-) > > Just to confirm what Yanko found, reverting this commit makes > the problem go away for me.
Thank you!
I take it that the patches that don't help Yanko also don't help you?
Thanx, Paul
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