On Tue, Jan 30, 2018 at 9:46 AM, Roland Franke [off-list ref] wrote:

Hello,

quoted

Well, not min_qdisc things, but it should be resolved by:

quoted

commit efbf78973978b0d25af59bc26c8013a942af6e64
Author: Cong Wang [off-list ref]
Date:   Mon Dec 4 10:48:18 2017 -0800

quoted

    net_sched: get rid of rcu_barrier() in tcf_block_put_ext()

Against what kernel-version was this be made?
patch from https://patchwork.ozlabs.org/patch/844372/
will not fit against kernel 4.14.15

It is merged during 4.15 window, it was to address a performance
issue, I don't realize it fixes any bug until you report this.

If you need, we can ask DaveM to queue it for stable, but it may
need some other commit too.

Thanks.