When BTstack is SDP browsed by a remote machine, it provides a SDP record. In the process it reports

hci_number_completed_packet but no outgoing packet in records

The error means that the flow control system saw a 'ack' when it didn't know a packet had been sent out.

It looks like this happens with: 1). Packets without a recognised handle (ie, handle is not in 'l2cap_channels' linked list) - adding handle check fixes that. 2). 'Signaling packets' - I guess the solution is to detect whether link is established (ie. handle is in 'l2cap_channels' linked lis) and then start counting these packets as well. This seems to be done for normal packets, so code could be duplicated/re-used.

Simon

Have a solution, will post patch later...

very good :)

yes was working on this last night when SO told me that it was time too stop.

Patch attached. Simon

ups. forgot about that one, but I've basically rewritten the whole flowcontrol. should be fine now. :)