Comment 1 for bug 1428548

it seems that a proposed patch (not sure this is related, but I would think so)

https://groups.google.com/forum/#!topic ... GQKKO37epg

is not applied in current raspian version :

https://github.com/raspberrypi/linux/bl ... tty_port.c
where the reported (supposed ?) buggy source code is the unpatched version