1 files changed, 7 insertions, 0 deletions
diff --git a/src/clock.c b/src/clock.c
index b664e0d986..ac146192b7 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -15,6 +15,7 @@
  * 2018-11-22     Jesven       add per cpu tick
  * 2020-12-29     Meco Man     implement rt_tick_get_millisecond()
  * 2021-06-01     Meco Man     add critical section projection for rt_tick_increase()
+ * 2023-10-16     RiceChen     fix: only the main core detection rt_timer_check(), in SMP mode
  */
 
 #include <rthw.h>
@@ -123,6 +124,12 @@ void rt_tick_increase(void)
     }
 
     /* check timer */
+#ifdef RT_USING_SMP
+    if (rt_hw_cpu_id() != 0)
+    {
+        return;
+    }
+#endif
     rt_timer_check();
 }