求翻译:waitpid: No child processes是什么意思?待解决 悬赏分:1 - 离问题结束还有 waitpid: No child processes问题补充:匿名 2013-05-23 12:21:38 waitpid函数:无子进程 匿名 2013-05-23 12:23:18 waitpid :没有子进程 匿名 2013-05-23 12:24:58 waitpid : 没有子进程 匿名 2013-05-23 ...
可见这里waitpid出错了,没得到子进程的退出状态,其中errno 10表示No child processes(errno定义见http://baike.baidu.com/view/3485007.htm),不过并不妨碍system正确执行命令。 原因在于system函数内部会经历fork()->exec()->waitpid()三个阶段,而我们的主函数中有处理SIGCHLD信号,里面还有waitpid操作。system本身的wai...
修改subprocess.py代码进行debug,发现wait()函数里调用os.waitpid() 出现了 [Errno 10] No child processes异常。 def wait(self): """Wait for child process to terminate. Returns returncode attribute.""" while self.returncode is None: try: pid, sts = _eintr_retry_call(os.waitpid, self.pid, ...
The child process is running and does not recycle. The recovery sub-process is successful, and his ID is 447 . The subprocess exits normally, and the return value is 0 . No child processes can be recycled. 完全是群魔乱舞。 来看看阻塞状态下的: I am a. The recovery sub-process is succe...
wait: No child processes I'm father [ 3488 ]; I have wiped out all zombies 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 2.1 kill 命令 特别特别注意的是,这个 kill 不是杀死的意思。在 linux 系统中,它表示发信号给...
// 释放pcb的一页内存，重新调度进程 void release(struct task_struct * p) { int i; ...
用while + wait时明明父进程还有子进程,wait却退出了,原因是No child processes wait函数只要有子进程不是一直阻塞调用进程不,为什么在还有子进程的时候退出循环了 对我有用[0]丢个板砖[0]引用|举报|管理 #13得分:0回复于:2012-03-06 17:31:55 也不是很懂有没有哪位前辈有关于这些的文章指导下 对我有用...
在system实现中会调用waitpid来回收子进程的状态,首先想到的一点是:阻塞SIGCHLD是为了避免主进程已经注册的SIGCHLD处理函数回收所有的子进程状态,那么在system中的waitpid调用会导致ECHILD(No child processes)的错误.为了证实自己的想法是否正确在网上查了一下,最后发现还跟第4点有关系,因为如果不阻塞SIGCHLD...
Calling process has no remaining child processes on which wait operation can be performed. [EINVAL] The value specified for the argument is not correct. A function was passed incorrect argument values, or an operation was attempted on an object and the operation specified is not supported for th...
<error>; [TIMESTAMP] kill child process 'nm-daemon-helper' (PID): failed due to unexpected return value -1 by waitpid (No child processes, 10) after sending SIGKILL (9) Solution In Progress - Updated June 3 2024 at 4:08 PM - English Issue NetworkManager logs the following error: ...