The lines look like
Apr 2 00:42:57 localhost kernel: [23971.505687] Bluetooth: hci0 SCO packet for unknown connection handle 0 Apr 2 00:42:57 localhost kernel: [23971.505690] Bluetooth: hci0 SCO packet for unknown connection handle 1536 Apr 2 00:42:57 localhost kernel: [23971.505692] Bluetooth: hci0 SCO packet for unknown connection handle 48
now when running 3.13.0-20-generic in trusty. There's again thousands of them in syslog.
$ zgrep -e SCO.packet /var/log/syslog.1|wc -l 148310
The lines look like
Apr 2 00:42:57 localhost kernel: [23971.505687] Bluetooth: hci0 SCO packet for unknown connection handle 0
Apr 2 00:42:57 localhost kernel: [23971.505690] Bluetooth: hci0 SCO packet for unknown connection handle 1536
Apr 2 00:42:57 localhost kernel: [23971.505692] Bluetooth: hci0 SCO packet for unknown connection handle 48
now when running 3.13.0-20-generic in trusty. There's again thousands of them in syslog.
$ zgrep -e SCO.packet /var/log/ syslog. 1|wc -l
148310