diff --git a/mutex.cpp b/mutex.cpp
index 85ada58..225c1a4 100644
--- a/mutex.cpp
+++ b/mutex.cpp
@@ -6,7 +6,7 @@ using namespace iflytop;
 /*******************************************************************************
  *                                   zmutex                                    *
  *******************************************************************************/
-zmutex::zmutex() {}
+zmutex::zmutex(const char* name) { this->name = name; }
 zmutex::~zmutex() { vSemaphoreDelete(recursiveMutex); }
 void zmutex::init() {
   recursiveMutex = xSemaphoreCreateRecursiveMutex();
@@ -15,7 +15,9 @@ void zmutex::init() {
 bool zmutex::isInit() { return recursiveMutex != NULL; }
 void zmutex::lock() {
   // ZASSERT(recursiveMutex != NULL);
+
   if (recursiveMutex == NULL) {
+    ZLOGE(TAG, "%s  recursiveMutex  NULL, init it", name);
     ZASSERT(recursiveMutex != NULL);
   }
   xSemaphoreTakeRecursive(recursiveMutex, portMAX_DELAY);
diff --git a/mutex.hpp b/mutex.hpp
index 63d223f..2292f5f 100644
--- a/mutex.hpp
+++ b/mutex.hpp
@@ -5,9 +5,10 @@ namespace iflytop {
 class zmutex {
  public:
   SemaphoreHandle_t recursiveMutex;
+  const char* name = nullptr;
 
  public:
-  zmutex();
+  zmutex(const char* name);
   ~zmutex();
 
   void init();
diff --git a/zadc.hpp b/zadc.hpp
index a666d55..ff56a6a 100644
--- a/zadc.hpp
+++ b/zadc.hpp
@@ -14,7 +14,7 @@ class ZADC {
   int32_t            m_samplingTime = ADC_SAMPLETIME_480CYCLES;
   bool               inited         = false;
 
-  zmutex      m_mutex;
+  zmutex      m_mutex    = {"ZADC"};
   int32_t     m_cacheVal = 0;
   const char* m_name     = "not set";
 
diff --git a/zspi.hpp b/zspi.hpp
index f29c219..e6b8d14 100644
--- a/zspi.hpp
+++ b/zspi.hpp
@@ -9,7 +9,7 @@ namespace iflytop {
 class ZSPI {
  private:
   SPI_HandleTypeDef *m_hspi = NULL;
-  zmutex             m_mutex;
+  zmutex             m_mutex= {"ZSPI"};
 
  public:
   ZSPI(){};