some commands were executed from the calling thread which may lead
to concurrent access to members. Detected by TSAN. The patch
moves all remaining calls (the majority was alread moved) to the
Stack task queue.
TSAN detected wrong use of the old deque-based internal queue. To avoid
unwanted/undetected mis-use the patch uses the thread-safe block_queue
data structure instead.
fixed through the right usage of mutexes in both TTCN PHY and syssim.
nested mutex locking is solved by calling SS from the PHY after
releaseing the PHY lock again.
on highly loaded systems it can happen that the get_metrics() is called
twice within a few houndred milliseconds. Logging a warning in this
case isn't needed, so reduce to info.
on the other hand, 100ms might be to convervative. Patch also
lowers the smallest interval to 10ms
* Protect PHY SR signal management in a class
* Protect intra_freq_meas vector
* Protect cell and srate shared variables in thread-safe classes
* srsue,srsenb: include TSAN options header
* Protect ue_rnti_t and rnti scheduling windows behind thread-safe classes
* Protect access to state variable in sync_state
* Protect access to metrics configuration
* Protect access to is_pending_sr
* Protect access to UE prach worker
* Protect UE mux
* Avoid unlocking mutex twice
* Fix data races in RF/ZMQ
* Fix data races in intra_measure and PHY
* Fix minor data races in MAC
* Make TSAN default behaviour to not halt on error
* Fix blocking in intra cell measurement
* Address comments
Co-authored-by: Andre Puschmann <andre@softwareradiosystems.com>
Introduce a new macro to catch UHD exceptions and log them directly instead of storing an error string, similar to what errno does.
Remove usrp logging helpers that depend on the now removed member since all calls potentially log the error directly.
the EPS bearer manager was only informed when a single DRB
was removed but not when entering idle which requires to
remove all bearers.
This cause the service request to fail.
RFCI has detected this assert failing in the log_backend_test. I have not been able to reproduce this locally but my theory is the following one:
one of the unit tests does the following:
backend.start();
backend.stop();
the internal running_flag member could be set to true and then to false by the main thread before the worker thread calls do_work(). If this happens
the assert will be triggered, which is wrong and too conservative, so remove the assert.
this is a rather large commit that is hard to split because
it touches quite a few components.
It's a preparation patch for adding NR split bearers in the next
step.
We realized that managing RLC and PDCP bearers for both NR and LTE
in the same entity doesn't work. This is because we use the LCID
as a key for all accesses. With NR dual connectivity however we
can have the same LCID active at the same time for both LTE and NR
carriers.
The patch solves that by creating a dedicated NR instance for RLC/PDCP
in the stack. But then the question arises for UL traffic on, e.g. LCID 4
what PDCP instance the GW should use for pushing SDUs. It doesnt' know
that. And in fact it doesn't need to. It just needs to know EPS
bearer IDs. So the next change was to remove the knowledge of what
LCIDs are from the GW. Make is agnostic and only work on EPS bearer IDs.
The handling and mapping between EPS bearer IDs and LCIDs for LTE
or NR (mainly PDCP for pushing data) is done in the Stack because
it has access to both.
The NAS also has a EPS bearer map but only knows about default and
dedicated bearers. It doesn't know on which logical channels they
are transmitted.
David Rupprecht
Andre Puschmann
Ismael Gomez
Pedro Alvarez
Francisco Paisana
faluco
Xavier Arteaga