RT-Thread Nano 线程上下文调度切换_context

RTT-NANO 3.1.3 线程切换问题

发布于 2021-02-23 10:36:54 浏览：1676 订阅该版

rtt nano长时间运行，只有main线程运行，其它线程无法执行；
复现步骤：
长时间运行，7,8小时左右；
硬件配置：HC32L130
软件环境：KEIL,RT-THREAD NANO 3.1.3
尝试：1，增加Stack_Size，怀疑是栈不够，导致PendSV_Handler无法调度，结果是还是会出现；

1，各线程中有使用rt_thread_mdelay
2，访问共享资源用到
```
	level = rt_hw_interrupt_disable();
	rt_hw_interrupt_enable(level);
```

##########################################################
线程信息
##########################################################
```
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
mbss       2  ready   0x000000d8 0x00000200    57%   0x0000000a 000
mbsr       3  ready   0x00000098 0x00000300    60%   0x00000007 000
tidle      7  ready   0x00000058 0x00000100    34%   0x00000005 000
timer      4  suspend 0x00000054 0x00000080    65%   0x0000000a 000
main       2  ready   0x000000e8 0x00000300    57%   0x00000007 000
 ---  ------- ---------- ----------  ------  ---------- ---
total memory: 3824
used memory : 2848
maximum allocated memory: 2940
 ---  ------- ---------- ----------  ------  ---------- ---

```
##########################################################
keil内存配置
##########################################################
```
; Stack Configuration
; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>

Stack_Size      EQU     0x00000400

AREA    STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem       SPACE   Stack_Size
__initial_sp

; Heap Configuration
; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>

Heap_Size       EQU     0x00000000

AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem        SPACE   Heap_Size
__heap_limit

PRESERVE8
                THUMB
```
##########################################################	
##########################################################
内核配置
##########################################################
```
/* RT-Thread config file */

#ifndef __RTTHREAD_CFG_H__
#define __RTTHREAD_CFG_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 8
// <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
// </c>

#define RT_USING_USER_MAIN

// <o>the stack size of main thread<1-4086>
// Default: 512
#define RT_MAIN_THREAD_STACK_SIZE 768

// </h>

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

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

// <e>Software timers Configuration
// Enables user timers
#define RT_USING_TIMER_SOFT 1
#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 4
// <o>The stack size of timer thread <0-8192>
// Default: 512
#define RT_TIMER_THREAD_STACK_SIZE 128
// </e>

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

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

// <h>Console Configuration
// <c1>Using console
// Using console
#define RT_USING_CONSOLE
// </c>
// <o>the buffer size of console <1-1024>
// the buffer size of console
// Default: 128 (128Byte)
#define RT_CONSOLEBUF_SIZE 128
// </h>

// <e>RT Finsh Configuration
// Enables Finsh
//#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 0
 #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 800
 // <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 >>>

#endif
```