With kernel 4.8.0-01558-g21f54dd I get thousands of "dvb-usb: bulk message failed: -11 (1/0)" messages in the logs and the DVB adapter is not working.
It tourned out the new config option VMAP_STACK=y (which is the default) is the culprit. No problems for me with VMAP_STACK=n. Thanks, Jörg
