Code-5.4报错：Stale file handle

[JasonkayZK]

其他的Namespace都挂载上了，只有mnt报错：

root@jasonkay:~/workspace/my_docker/chapter5_detach/5_4_exec# ./my_docker exec test sh
missing my_docker_pid env, skip ns-enter
{"level":"info","msg":"exec container real pid: 2725","time":"2021-09-20T14:26:42Z"}
{"level":"info","msg":"exec command: sh","time":"2021-09-20T14:26:42Z"}
got my_docker_pid=2725
got my_docker_cmd=sh
setns on ipc namespace succeeded
setns on uts namespace succeeded
setns on net namespace succeeded
setns on pid namespace succeeded
setns on mnt namespace failed: Stale file handle
# 

[JasonkayZK]

并且即使PID Namespace设置成功，top的PID还不是1；

[MajLuu]

在当前5.4章节，需要暂时把AUFS挂载函数部分移除，cmd.Dir设置为 busybox 目录才能达到书中的效果

[JasonkayZK]

好的好的，我再试试