diff --git a/arch/arm/arm/src/los_exc.c b/arch/arm/arm/src/los_exc.c
index 58f66577..46468548 100755
--- a/arch/arm/arm/src/los_exc.c
+++ b/arch/arm/arm/src/los_exc.c
@@ -1138,6 +1138,7 @@ __attribute__((noinline)) VOID LOS_Panic(const CHAR *fmt, ...)
     UartVprintf(fmt, ap);
     va_end(ap);
     __asm__ __volatile__("swi 0");
+    while (1);
 }
 
 /* stack protector */
diff --git a/arch/arm/include/los_exc.h b/arch/arm/include/los_exc.h
index 807bcb2f..980e7af1 100755
--- a/arch/arm/include/los_exc.h
+++ b/arch/arm/include/los_exc.h
@@ -183,7 +183,7 @@ extern UINT32 LOS_ExcRegHook(EXC_PROC_FUNC excHook);
  * los_exc.h: the header file that contains the API declaration.
  * @see None.
  */
-VOID LOS_Panic(const CHAR *fmt, ...);
+VOID LOS_Panic(const CHAR *fmt, ...) __attribute__ ((noreturn));
 
 /**
  * @ingroup los_exc