diff --git a/src/core/loader.h b/src/core/loader.h
index 1c4005dd3b..f2ba57ed9c 100644
--- a/src/core/loader.h
+++ b/src/core/loader.h
@@ -172,11 +172,10 @@ typedef BaseLoader<RocTxApi> RocTxLoader;
 #define LOADER_INSTANTIATE() \
   template<class T> typename roctracer::BaseLoader<T>::mutex_t roctracer::BaseLoader<T>::mutex_; \
   template<class T> std::atomic<roctracer::BaseLoader<T>*> roctracer::BaseLoader<T>::instance_{}; \
-  template<class T> const bool roctracer::BaseLoader<T>::strong_ld_check_ = false;
+  template<class T> const bool roctracer::BaseLoader<T>::strong_ld_check_ = true; \
   template<> const char* roctracer::HipLoader::lib_name_ = "libhip_hcc.so"; \
   template<> const char* roctracer::HccLoader::lib_name_ = "libmcwamp_hsa.so"; \
   template<> const char* roctracer::KfdLoader::lib_name_ = "libkfdwrapper64.so"; \
-  template<> const char* roctracer::RocTxLoader::lib_name_ = "libroctx64.so"; \
-  template<> const bool roctracer::RocTxLoader::strong_ld_check_ = false;
+  template<> const char* roctracer::RocTxLoader::lib_name_ = "libroctx64.so";
 
 #endif // SRC_CORE_LOADER_H_
diff --git a/src/core/roctracer.cpp b/src/core/roctracer.cpp
index b062aca61f..155892c6dd 100644
--- a/src/core/roctracer.cpp
+++ b/src/core/roctracer.cpp
@@ -324,10 +324,12 @@ void* HIP_SyncActivityCallback(
     if ((data == NULL) && (pool != NULL)) EXC_ABORT(ROCTRACER_STATUS_ERROR, "ActivityCallback enter: pool is not NULL");
     // Allocating a record if NULL passed
     if (record == NULL) {
+      if (data != NULL) EXC_ABORT(ROCTRACER_STATUS_ERROR, "ActivityCallback enter: record is NULL");
       record_pair_stack.push({});
       auto& top = record_pair_stack.top();
       record = &(top.record);
       data_ptr = &(top.data.hip);
+      data = data_ptr;
     }
 
     // Filing record info
diff --git a/test/MatrixTranspose_test/MatrixTranspose.cpp b/test/MatrixTranspose_test/MatrixTranspose.cpp
index c2a4ebad3c..40082f9f38 100644
--- a/test/MatrixTranspose_test/MatrixTranspose.cpp
+++ b/test/MatrixTranspose_test/MatrixTranspose.cpp
@@ -291,6 +291,8 @@ void activity_callback(const char* begin, const char* end, void* arg) {
 // Init tracing routine
 void init_tracing() {
   std::cout << "# INIT #############################" << std::endl << std::flush;
+  // roctracer properties
+  roctracer_set_properties(ACTIVITY_DOMAIN_HIP_API, NULL);
   // Allocating tracing pool
   roctracer_properties_t properties{};
   properties.buffer_size = 0x1000;
@@ -320,6 +322,7 @@ void stop_tracing() {
   std::cout << "# STOP  #############################" << std::endl << std::flush;
 }
 #else
+void init_tracing() {}
 void start_tracing() {}
 void stop_tracing() {}
 #endif
diff --git a/test/run.sh b/test/run.sh
index 3b383da201..d3e317cc70 100755
--- a/test/run.sh
+++ b/test/run.sh
@@ -25,7 +25,7 @@
 # enable tools load failure reporting
 export HSA_TOOLS_REPORT_LOAD_FAILURE=1
 # paths to ROC profiler and oher libraries
-export LD_LIBRARY_PATH=$PWD
+export LD_LIBRARY_PATH=$PWD:/opt/rocm/hip/lib
 
 # test filter input
 test_filter=-1
@@ -33,6 +33,12 @@ if [ -n "$1" ] ; then
   test_filter=$1
 fi
 
+# debugger
+debugger=""
+if [ -n "$2" ] ; then
+  debugger=$2
+fi
+
 # test check routin
 test_status=0
 test_runnum=0
@@ -46,7 +52,7 @@ eval_test() {
   if [ $test_filter = -1  -o $test_filter = $test_number ] ; then
     echo "$label: \"$cmdline\""
     test_runnum=$((test_runnum + 1))
-    eval "$cmdline"
+    eval "$debugger $cmdline"
     if [ $? != 0 ] ; then
       echo "$label: FAILED"
       test_status=$(($test_status + 1))
diff --git a/test/tool/tracer_tool.cpp b/test/tool/tracer_tool.cpp
index 59b33fba2a..b5c5c2bf6d 100644
--- a/test/tool/tracer_tool.cpp
+++ b/test/tool/tracer_tool.cpp
@@ -680,6 +680,8 @@ extern "C" PUBLIC_API bool OnLoad(HsaApiTable* table, uint64_t runtime_version,
     hcc_activity_file_handle = open_output_file(output_prefix, "hcc_ops_trace.txt");
 
     fprintf(stdout, "    HIP-trace()\n"); fflush(stdout);
+    // roctracer properties
+    roctracer_set_properties(ACTIVITY_DOMAIN_HIP_API, (void*)mark_api_callback);
     // Allocating tracing pool
     roctracer_properties_t properties{};
     properties.buffer_size = 0x80000;
@@ -688,8 +690,6 @@ extern "C" PUBLIC_API bool OnLoad(HsaApiTable* table, uint64_t runtime_version,
     ROCTRACER_CALL(roctracer_enable_domain_activity(ACTIVITY_DOMAIN_HCC_OPS));
     ROCTRACER_CALL(roctracer_enable_domain_activity(ACTIVITY_DOMAIN_HIP_API));
     ROCTRACER_CALL(roctracer_enable_domain_callback(ACTIVITY_DOMAIN_HIP_API, hip_api_callback, NULL));
-
-    roctracer_set_properties(ACTIVITY_DOMAIN_HIP_API, (void*)mark_api_callback);
   }
 
   const char* ctrl_str = getenv("ROCP_CTRL_RATE");