Hello,

I have had some success streaming instruction trace to my Linux PC using RDDI (from ARM Development studio 2019) and a DStreamer ST. However I am also 

having some problems:

1. Failure to stop trace cleanly

I have enabled streaming from an ETM attached to a Cortex-R5 core.

As described in the RDDI documentation, to stop streaming, I call StreamingTrace_Flush() and wait for

RDDI_STREAMING_TRACE_EVENT_TYPE_END_OF_DATA event. 

Next i call StreamingTrace_Stop() which succeeds and then try StreamingTrace_Detach() which seems to fail with the following assert.

tpp.c:84: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)' failed.
Aborted (core dumped)

If i try to avoid calling StreamingTrace_{Detach, Stop}  then Debug_CloseConn to the core never returns and i get a seg fault. 

2.  Raw trace does not start with A-SYNC bits

I do see A-SYNC bits later but my understanding was ETM always sends the A-SYNC bits first.

Cheers,

raj