idle堆栈溢出，导致系统反复重启

发布于 2024-03-20 10:46:36 浏览：293 订阅该版

idle线程线程溢出

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20240320/b6291fc3e7b1fdbe6e7820bb52f29449.png.webp)

如上图，堆栈溢出后，系统反复重启。
具体溢出代码如下

```
thread:tidle stack overflowthread   pri  status      sp     stack size max used left tick  error-------- ---  ------- ---------- ----------  ------  ---------- ---
tidle     31  ready   0x00000220 0x00000200    100%   0x0000001c 000
main      10  suspend 0x000000d0 0x00000200    93%   0x0000000d 000
```

目前不清楚啥原因
先有rt_config如下：

```c
/* RT-Thread config file */

#ifndef __RTTHREAD_CFG_H__
#define __RTTHREAD_CFG_H__

#include <rtthread.h>

#if defined(__CC_ARM) || defined(__CLANG_ARM)
#include "RTE_Components.h"

#if defined(RTE_USING_FINSH)
#define RT_USING_FINSH
#endif //RTE_USING_FINSH

#endif //(__CC_ARM) || (__CLANG_ARM)

// <<< Use Configuration Wizard in Context Menu >>>
// <h>Basic Configuration
// <o>Maximal level of thread priority <8-256>
// Default: 32
#define RT_THREAD_PRIORITY_MAX 32
// <o>OS tick per second
// Default: 1000 (1ms)
#define RT_TICK_PER_SECOND 1000
// <o>Alignment size for CPU architecture data access
// Default: 4
#define RT_ALIGN_SIZE 4
// <o>the max length of object name<2-16>
// Default: 8
#define RT_NAME_MAX 8
// <c1>Using RT-Thread components initialization
// Using RT-Thread components initialization
#define RT_USING_COMPONENTS_INIT 1
// </c>

#define RT_USING_USER_MAIN 1

// <o>the stack size of main thread<1-4086>
// Default: 512
#define RT_MAIN_THREAD_STACK_SIZE 512

// </h>

// <h>Debug Configuration
// <c1>enable kernel debug configuration
// Default: enable kernel debug configuration
#define RT_DEBUG 1
// </c>
// <o>enable components initialization debug configuration<0-1>
// Default: 0
#define RT_DEBUG_INIT 1
// <c1>thread stack over flow detect
// Diable Thread stack over flow detect
#define RT_USING_OVERFLOW_CHECK 1
// </c>
// </h>

// <h>Hook Configuration
// <c1>using hook
// using hook
//#define RT_USING_HOOK 1
// </c>
// <c1>using idle hook
// using idle hook
//#define RT_USING_IDLE_HOOK 1
// </c>
// </h>

// <e>Software timers Configuration
// Enables user timers
#define RT_USING_TIMER_SOFT 0
#if RT_USING_TIMER_SOFT == 0
 #undef RT_USING_TIMER_SOFT
#endif
// <o>The priority level of timer thread <0-31>
// Default: 4
#define RT_TIMER_THREAD_PRIO 10
// <o>The stack size of timer thread <0-8192>
// Default: 512
#define RT_TIMER_THREAD_STACK_SIZE 512
// </e>

// <h>IPC(Inter-process communication) Configuration
// <c1>Using Semaphore
// Using Semaphore
#define RT_USING_SEMAPHORE 1
// </c>
// <c1>Using Mutex
// Using Mutex
#define RT_USING_MUTEX 1
// </c>
// <c1>Using Event
// Using Event
#define RT_USING_EVENT 1
// </c>
// <c1>Using MailBox
// Using MailBox
#define RT_USING_MAILBOX 1
// </c>
// <c1>Using Message Queue
// Using Message Queue
#define RT_USING_MESSAGEQUEUE 1
// </c>
// </h>

// <h>Memory Management Configuration
// <c1>Dynamic Heap Management
// Dynamic Heap Management
#define RT_USING_HEAP 1
// </c>
// <c1>using small memory
// using small memory
#define RT_USING_SMALL_MEM 1
// </c>
// <c1>using tiny size of memory
// using tiny size of memory
#define RT_USING_TINY_SIZE 256
// </c>
// </h>

// <h>Console Configuration
// <c1>Using console
// Using console
#define RT_USING_CONSOLE 1
// </c>
// <o>the buffer size of console <1-1024>
// the buffer size of console
// Default: 128 (128Byte)
#define RT_CONSOLEBUF_SIZE 128
// </h>
#define RT_USING_FINSH
#if defined(RT_USING_FINSH)
 #define FINSH_USING_MSH
 #define FINSH_USING_MSH_ONLY
 // <h>Finsh Configuration
 // <o>the priority of finsh thread <1-7>
 // the priority of finsh thread
 // Default: 6
 #define __FINSH_THREAD_PRIORITY 5
 #define FINSH_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX / 8 * __FINSH_THREAD_PRIORITY + 1)
 // <o>the stack of finsh thread <1-4096>
 // the stack of finsh thread
 // Default: 4096 (4096Byte)
 #define FINSH_THREAD_STACK_SIZE 512
 // <o>the history lines of finsh thread <1-32>
 // the history lines of finsh thread
 // Default: 5
 #define FINSH_HISTORY_LINES 1

#define FINSH_USING_SYMTAB
 // </h>
#endif

// <<< end of configuration section >>>
#define RT_USING_DEVICE 1

#endif
```

相关idle堆栈配置如下：
```c
#ifndef IDLE_THREAD_STACK_SIZE
#if defined (RT_USING_IDLE_HOOK) || defined(RT_USING_HEAP)
#define IDLE_THREAD_STACK_SIZE  512
#else
#define IDLE_THREAD_STACK_SIZE  512
#endif
#endif
```

main函数很干净，仅有一个打印函数和延时：

```c
int main()
{

while(1)
       {
        rt_kprintf("main\r\n");
        rt_thread_mdelay(1);       
       }
}
```