配套书籍2.2.3章节的例子cgroup随机不生效

[liuguangwei]

该例子中存在线程问题，如果执行 stress命令早于创建文件夹，会导致创建的任务pid不写入testmemorylimit/tasks中，而是写入user.slice/tasks中，内存限制失效，需要添加延迟操作，确保testmemorylimit先创建

[123liuziming]

+1

[xjhonly]

我运行这个加了延迟的代码。会有这个报错
current pid 1
stress: info: [5] dispatching hogs: 0 cpu, 0 io, 1 vm, 0 hdd
stress: FAIL: [5] (415) <-- worker 6 got signal 9
stress: WARN: [5] (417) now reaping child worker processes
stress: FAIL: [5] (421) kill error: No such process
stress: FAIL: [5] (451) failed run completed in 0s
exit status 1