diff --git a/rtos/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/DxHunting.c b/rtos/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/DxHunting.c
index 29a88aabd..d9617ea30 100755
--- a/rtos/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/DxHunting.c
+++ b/rtos/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/DxHunting.c
@@ -393,7 +393,7 @@ static void IrCutCtrlThreadInit(void)
 {
     //DBG_DUMP("\r\n [%s:%d] s \r\n",__FUNCTION__,__LINE__);
 
-    g_handle_ir_cut = vos_task_create(IrCutCtrlThread, NULL, "IrCutCtrlThread", 18, 2048);
+    g_handle_ir_cut = vos_task_create(IrCutCtrlThread, NULL, "IrCutCtrlThread", 18, 4096);
 	if(!g_handle_ir_cut){
 		DBG_ERR("[ERROR] IR CUT thread creat failed!\r\n");
         Delay_DelayMs(80);
diff --git a/rtos/code/driver/na51089/source/mcu/sf_led.c b/rtos/code/driver/na51089/source/mcu/sf_led.c
index 6a172e0f9..95eb8656e 100755
--- a/rtos/code/driver/na51089/source/mcu/sf_led.c
+++ b/rtos/code/driver/na51089/source/mcu/sf_led.c
@@ -356,7 +356,7 @@ void sf_led_init(void)
 
 	//vos_flag_create(&FLG_ID_SF_LED, NULL, "FLG_ID_SF_LED");
 	/*thread creat*/
-   ledTskId = vos_task_create(sf_led_thread, NULL, "sf_led_thread", 25, 2048);
+   ledTskId = vos_task_create(sf_led_thread, NULL, "sf_led_thread", 25, 4096);
 	vos_task_resume(ledTskId);
      #if HW_S530
      /*thread creat*/