On 01/23/2017 03:35 PM, Zefan Li wrote: > It's not a bug. It's a feature introduced by commit ad676077a2ae4af4bb. Oh, got it. > That said, I don't like this feature at all, because it's very confusing, > and obviously you are confused. Yes, I am really confused about this. And, another problem is I can't allow/deny all devices. # echo a > /sys/fs/cgroup/devices/test/devices.deny -bash: echo: write error: Invalid argument # echo a > /sys/fs/cgroup/devices/test/devices.allow -bash: echo: write error: Invalid argument Is this also a new feature? -- Ma Shimiao Development Dept.I Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST) -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html