Re: [PATCH mm v2] memcg: notify about global mem_cgroup_id space depletion

Vasily Averin
2022-06-27T06:49:18Z

On 6/27/22 06:23, Muchun Song wrote:
> If the caller can know -ENOSPC is returned by mkdir(), then I
> think the user (perhaps systemd) is the best place to throw out the
> error message instead of in the kernel log. Right?

Such an incident may occur inside the container.
OpenVZ nodes can host 300-400 containers, and the host admin cannot
monitor guest logs. the dmesg message is necessary to inform the host
owner that the global limit has been reached, otherwise he can
continue to believe that there are no problems on the node.

Thank you,
Vasily Averin