Re: 4.6.3, pppoe + shaper workload, skb_panic / skb_push / ppp_start_xmit

On Mon, Aug 08, 2016 at 02:25:00PM +0300, Denys Fedoryshchenko wrote:

On 2016-08-01 23:59, Guillaume Nault wrote:

quoted

Do you still have the vmlinux file with debug symbols that generated
this panic?

Sorry for delay, i didn't had same image on all servers and probably i found
cause of panic, but still testing on several servers.
If i remove SFQ qdisc from ppp shapers, servers not rebooting anymore.

Thanks for the feedback. I wonder which interactions between SFQ and
PPP can lead to this problem. I'll take a look.

But still i need around 2 days to make sure that's the reason.

Okay, just let me know if you can confirm that removing SFQ really
solves the problem.