pthread_join报错

发布于 2022-06-24 17:01:15 浏览：409 订阅该版

如下所示，调用pthread_join以后，报如下错误，有大佬知道怎么解决吗？

```c
msh />
msh />
msh />
msh />
msh />
 \ | /
- RT -     Thread Operating System
 / | \     4.1.0 build Jun 24 2022 16:22:28
 2006 - 2022 Copyright by RT-Thread team
pthread_create success
i'm thread1 and i will detach myself!
posix thread 0
posix thread 1
posix thread 2
posix thread 3
posix thread 4
thread1 exited!
posix_thread_init exit
msh />(small_mem != RT_NULL) assertion failed at function:rt_smem_free, line number:532
```

```c
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>

static pthread_t tid1;

static void* thread1_entry(void *param)
{
	printf("i'm thread1 and i will detach myself!\n");
	
	for(int i=0; i<5; i++)
	{
		printf("posix thread %d\n", i);
		sleep(1);
	}
	
	printf("thread1 exited!\n");
	
	return NULL;
}

static int posix_thread_init(void)
{
	int result;

result = pthread_create(&tid1, NULL, thread1_entry, NULL);
	if( result == 0 )
	{
		printf("pthread_create success\n");
	}
	else
	{
		printf("pthread_create fail\n");
	}
	
	pthread_join(tid1, NULL);
	
	printf("posix_thread_init exit\n");
	
	return 0;
}
INIT_APP_EXPORT(posix_thread_init);
```

crystal266 2022-06-30

嵌入式

BruceTan 2022-07-01

这家伙很懒，什么也没写！

crystal266 2022-07-01

嵌入式

我把你的代码在我的开发板上试了一下，芯片型号是 STM32F103xx，把 `INIT_APP_EXPORT(posix_thread_init);` 改成了 `MSH_CMD_EXPORT(posix_thread_init, posix_thread_init);` 方便进行测试，连续测试了多次结果没有出现你上述的问题，我的内核版本是 4.0.4，使用的 studio 进行的开发，日志如下，不知道你的开发板芯片型号是什么？

```c

\ | /
- RT -     Thread Operating System
 / | \     4.0.4 build Jul  1 2022 13:47:12
 2006 - 2021 Copyright by rt-thread team
[I/drv.rtc] RTC hasn't been configured, please use <date> command to config.
[I/sal.skt] Socket Abstraction Layer initialize success.
[E/DFS] There is no space to register this file system (elm).
[E/at.clnt] AT client initialize failed! Not find the device(uart2).
[E/at.clnt] AT client(V1.3.1) on device uart2 initialize failed(-1).
[E/at.dev.ec200x] get AT client(uart2) failed.
[D/main] Hello RT-Thread!
msh />
msh />
msh />
msh />po
posix_thread_init
msh />posix_thread_init
pthread_create success
i'm thread1 and i will detach myself!
posix thread 0
posix thread 1
posix thread 2
posix thread 3
posix thread 4
thread1 exited!
posix_thread_init exit
msh />
msh />ps
thread           pri  status      sp     stack size max used left tick  error
---------------- ---  ------- ---------- ----------  ------  ---------- ---
at_clnt0           9  init    0x00000044 0x00000600    04%   0x00000005 000
tshell            20  running 0x00000180 0x00001000    15%   0x00000006 000
sys_work          23  suspend 0x00000080 0x00000800    06%   0x0000000a 000
tidle0            31  ready   0x00000074 0x00000100    45%   0x00000004 000
timer              4  suspend 0x0000007c 0x00000200    24%   0x00000009 000
main              10  suspend 0x000000b4 0x00000800    30%   0x0000000c 000
msh />
msh />posix_thread_init
pthread_create success
i'm thread1 and i will detach myself!
posix thread 0
posix thread 1
posix thread 2
posix thread 3
posix thread 4
thread1 exited!
posix_thread_init exit
msh />
msh />
msh />posix_thread_init
pthread_create success
i'm thread1 and i will detach myself!
posix thread 0
posix thread 1
posix thread 2
posix thread 3
posix thread 4
thread1 exited!
posix_thread_init exit
msh />
msh />ps
thread           pri  status      sp     stack size max used left tick  error
---------------- ---  ------- ---------- ----------  ------  ---------- ---
at_clnt0           9  init    0x00000044 0x00000600    04%   0x00000005 000
tshell            20  running 0x00000148 0x00001000    15%   0x00000006 000
sys_work          23  suspend 0x00000080 0x00000800    06%   0x0000000a 000
tidle0            31  ready   0x0000005c 0x00000100    45%   0x00000010 000
timer              4  suspend 0x0000007c 0x00000200    24%   0x00000009 000
main              10  suspend 0x000000b4 0x00000800    30%   0x0000000c 000
msh />
msh />ps
thread           pri  status      sp     stack size max used left tick  error
---------------- ---  ------- ---------- ----------  ------  ---------- ---
at_clnt0           9  init    0x00000044 0x00000600    04%   0x00000005 000
tshell            20  running 0x00000148 0x00001000    15%   0x00000002 000
sys_work          23  suspend 0x00000080 0x00000800    06%   0x0000000a 000
tidle0            31  ready   0x0000005c 0x00000100    45%   0x00000010 000
timer              4  suspend 0x0000007c 0x00000200    24%   0x00000009 000
main              10  suspend 0x000000b4 0x00000800    30%   0x0000000c 000
msh />
```