Hi all:

I am running an application on a computer that has many handheld devices 
withing range. Obviously, these devices all have bluetooth enabled and 
the communication is done using bluetooth protocols. From time to time I 
get some strange errors. I have run hcidump and I have attached the 
results. These are only fragments, as the application is running 
continuously.

    * In hcidump1.txt, there is a response to an SDP query. Everything
      goes well until "srv rec #5", when another SDP query is sent to
      (apparently) a different device. At this point, the communication
      aborts and the ERROR line is shown. Has anybody any idea why is
      this happening? Has anybody seen this before?
    * In hcidump2.txt, there is a line with "ERROR: Unknown PDU ID:
      0x4b". As I understand it, this means that a device has sent an
      illegal L2CAP message. If this is correct, then it means that the
      device has a broken bluetooth implementation. Another possibility
      would be that BlueZ does not handle all messages. Any ideas?

Thank you and regards,

Pedro