碰见一个超级奇怪的问题，我线程执行完任务后，把它删除，但是调试的时候，把打印关了就会报错，打开调试就不会报错

发布于 2024-10-28 15:11:14 浏览：214 订阅该版

任务里面的函数都是空的，我全注释了，就是打开了两个信号量和三个线程，第一个信号量是触碰按键，然后开始创建测试模块的线程，第二个信号量是用来控制管理创建线程的，只有模块的测试线程接收，并删除了该线程，才释放信号量，然后管理线程得到信号量在创建信号量，问题是我调试的时候，把rt_kprintf("22222\n");注释就会报错，打开就没事，百思不得其解。

```c
##include "myhead.h"
 //定义信号量的句柄
rt_sem_t dynamic_sem = RT_NULL;
rt_sem_t lvgl_test_sem = RT_NULL;

static rt_thread_t manager_thread;

void drv_servo_lvgl_set(void)
{   
    rt_sem_release(lvgl_test_sem);
    
    //lv_label_set_text(guider_ui.screen_servo_label_sw4, "begin");
}
void test_current_entry(void *parameter)
{
    rt_uint32_t select_mode;

// select_mode = (rt_uint32_t)parameter;
    while(1)
    {
       if(select_mode == 0)
       {
           static_ele_pwm();
           goto err;
       }
       else{
       
            static_ele_serial();
            goto err;
       }
       
       err:
      //rt_kprintf("22222\n");
      //rt_thread_mdelay(1000);
       rt_sem_release(dynamic_sem);                    //释放信号量
       rt_thread_t get_threadid =rt_thread_self();
       rt_thread_delete(get_threadid);
       //rt_thread_mdelay(100);
   }

}

void test_voltage_entry(void *parameter)
{
    rt_uint32_t select_mode;

select_mode = (rt_uint32_t)parameter;
    while(1)
    {
//       if(select_mode == 0)
//       {
//           static_ele_pwm();
//           goto err;
//       }
//       else{
//       
//            static_ele_serial();
//            goto err;
//       }
//       
//       err:
//       rt_sem_release(dynamic_sem);                    //释放信号量
//       rt_thread_t get_threadid =rt_thread_self();
//       rt_thread_delete(get_threadid);

rt_kprintf("33333\n");
        rt_thread_mdelay(1000);
   }
}

test_module_t test_modules[TEST_MODULE_NUMBER] = {
    {test_current_entry, "current_thread",RT_NULL},
    {test_voltage_entry, "voltage_thread",RT_NULL},
   
    //添加更多测试模块...
};

static void manager_thread_entry(void *parameter)
{
  while(1){
    rt_sem_take(lvgl_test_sem, RT_WAITING_FOREVER);
  //  rt_kprintf("1111\n");
    //rt_sem_delete(lvgl_test_sem);
    for (int i = 0; i < TEST_MODULE_NUMBER; i++)
    {
        rt_thread_t thread = rt_thread_create(test_modules[i].thread_name,
                                              test_modules[i].entry_func,
                                              test_modules[i].parameter,
                                              1024,  // 线程栈大小
                                              25,     // 线程优先级
                                              10);    // 时间片
        if (thread != RT_NULL)
        {
            rt_thread_startup(thread);
        }
        else
        {
            rt_kprintf("Failed to create thread for module %s\n", test_modules[i].thread_name);
        }
        
        rt_sem_take(dynamic_sem, RT_WAITING_FOREVER);
        
        // 等待线程完成（这里可以添加同步机制，例如使用事件或者信号量）

rt_thread_mdelay(1000); // 假设每个线程执行时间不超过1100ms
    }
       rt_thread_t get_threadid =rt_thread_self();
       rt_thread_delete(get_threadid);
    
    rt_kprintf("All test modules have been executed.\n");
    }
}

int Ps_Create_Init(void)
{
    lv_label_set_text(guider_ui.screen_servo_label_sw4, "begin");
    dynamic_sem = rt_sem_create("dsem", 0, RT_IPC_FLAG_PRIO);     //创建线程信号量
    if (dynamic_sem == RT_NULL)
    {
        rt_kprintf("create dynamic semaphore failed.\n");
        return -1;
    }
    
    lvgl_test_sem = rt_sem_create("lvgl_sem", 0, RT_IPC_FLAG_PRIO); //创建lvgl的ui界面信号里
    if (lvgl_test_sem == RT_NULL)
    {
        rt_kprintf("create dynamic semaphore failed.\n");
        return -1;
    }
    
      // 创建管理线程
    manager_thread = rt_thread_create("manager_thread",
                                        manager_thread_entry,
                                        RT_NULL,
                                        1024,  // 栈大小
                                        20,     // 优先级
                                        10);    // 时间片
    if (manager_thread != RT_NULL)
    {
        rt_thread_startup(manager_thread);
    }
    
       return 0;    
}

INIT_APP_EXPORT(Ps_Create_Init);
```

![企业微信截图_17300994341297.png](https://oss-club.rt-thread.org/uploads/20241028/0ce09eddd48216be063a751db95ce713.png)