rlc_am_test: fix TSAN isses and removing info log when dropping PDU

lib/test/upper/rlc_am_test.cc

@@ -83,7 +83,7 @@ public:
 class ul_writer : public thread
 {
 public:
-  ul_writer(rlc_am_lte* rlc_) : rlc(rlc_), running(false), thread("UL_WRITER") {}
+  ul_writer(rlc_am_lte* rlc_) : rlc(rlc_), thread("UL_WRITER") {}
   ~ul_writer() { stop(); }
   void stop()
   {
@@ -119,8 +119,8 @@ private:
     running = false;
   }
 
-  rlc_am_lte* rlc;
-  bool        running;
+  rlc_am_lte*       rlc     = nullptr;
+  std::atomic<bool> running = {false};
 };
 
 int basic_test_tx(rlc_am_lte* rlc, byte_buffer_t pdu_bufs[NBUFS])

lib/test/upper/rlc_stress_test.cc

@@ -245,7 +245,7 @@ private:
           pcap->write_ul_ccch(pdu->msg, pdu_len);
         }
       } else {
-        logger.warning(pdu->msg, pdu->N_bytes, "Dropping RLC PDU (%d B)", pdu->N_bytes);
+        logger.info(pdu->msg, pdu->N_bytes, "Dropping RLC PDU (%d B)", pdu->N_bytes);
         skip_action = true; // Avoid drop duplicating this PDU
       }
 
@@ -254,7 +254,7 @@ private:
         it++;
         skip_action = false; // Allow action on the next PDU
       } else {
-        logger.warning(pdu->msg, pdu->N_bytes, "Duplicating RLC PDU (%d B)", pdu->N_bytes);
+        logger.info(pdu->msg, pdu->N_bytes, "Duplicating RLC PDU (%d B)", pdu->N_bytes);
         skip_action = true; // Avoid drop of this PDU
       }
     }
@@ -299,7 +299,7 @@ private:
   rlc_interface_mac* rlc1 = nullptr;
   rlc_interface_mac* rlc2 = nullptr;
 
-  bool                   run_enable = false;
+  std::atomic<bool>      run_enable = {false};
   stress_test_args_t     args       = {};
   rlc_pcap*              pcap       = nullptr;
   uint32_t               lcid       = 0;
@@ -427,7 +427,8 @@ private:
     }
   }
 
-  bool run_enable = true;
+  std::atomic<bool> run_enable = {true};
+
   /// Tx uses thread-local PDCP SN to set SDU content, the Rx uses this variable to check received SDUs
   uint8_t               next_expected_sdu = 0;
   uint64_t              rx_pdus           = 0;