On Jan 4, 2019, at 11:10 PM, Pete Heist <pete@heistp.net> wrote:

Ok, fwiw one doesn’t actually need a one-armed router or VLANs to reproduce this. Just do this:

tc qdisc add dev $IFACE root handle 1: hfsc default 1
tc class add dev $IFACE parent 1: classid 1:1 hfsc ls rate $RATE ul rate $RATE
tc qdisc add dev $IFACE parent 1:1 cake # add no-split-gso here, or else…

I’ve tried it as far as 4.9.0-8, but no farther. It’s not much of a priority for me now that I have a workaround for it...