While getting into the messaging system in GNU Radio I noticed that the Message Debug block doesn't print PDU for messages if a message has metadata (key value or car) different than pmt.PMT_NIL. So I have a Message Strobe connected to Message Debug where message is:
pmt.cons(pmt.intern(""), pmt.make_u8vector(16, 0xFF)) - where Debug block cannot extract the PDU - gr::log :WARN: message_debug0 - Non PDU type message received. Dropping.
pmt.cons(pmt.PMT_NIL, pmt.make_u8vector(16, 0xFF)) - where the Message Debug block prints PDU as I would expect.
Does it mean that the Message Debug block is not working properly or my understanding is wrong?
Best regards,
-- Marcin Puchlik
DSP Engineer
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