On Thu, Mar 3, 2016 at 3:52 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On jeu., 2016-03-03 at 14:24 -0800, Tom Herbert wrote:
>> This a kernel based on 3.10. We believe the lockups coincide with
>> removing/readding qdiscs.
>
> You could backport 64153ce0a7b61b2a
> ("net_sched: htb: do not setup default rate estimators"),
> unless you desperately want these rate estimators...
>
> How many HTB classes do you deal with ?
>
~1500.One think that looks odd to me is that htb_destroy_class is not doing an rcu_free (just kfree(cl)). I'm thinking that est_timer can run after that kfree and be accessing some of the fields in the freed structure (at least rate_est). Tom
