[Cake] cake infinite loop(?) with hfsc on one-armed router

Pete Heist pete at heistp.net
Fri Jan 4 17:12:25 EST 2019


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

Correction, add “no-split-gso” to fix it, not “split-gso”. That’s lack of sleep, and I will go correct that now… :)

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