NETLINK_CONNECTOR doesn't work

[yanguo2111]

Issue Report

the netlink connector which is used to monitor process not working.
socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
return everything OK. but cannot receive process events.

Bug

Container Linux Version

VERSION=1911.4.0
VERSION_ID=1911.4.0
BUILD_ID=2018-11-26-1924
PRETTY_NAME="Container Linux by CoreOS 1911.4.0 (Rhyolite)"
COREOS_BOARD="amd64-usr"

Environment

What hardware/cloud provider/hypervisor is being used to run Container Linux?

Expected Behavior

Actual Behavior

Reproduction Steps

1. ...
2. ...

Other Information

[bgilbert]

Are you seeing this on the host or in a container? Could you check whether the same problem occurs on another Linux distribution? Could you post a minimal reproducer?

[yanguo2111]

I see this on the host.
compile this source code and run it on coreOs. it return no error, but the netlink does not work.
https://github.com/ggrandes-clones/pmon/blob/master/src/pmon.c
If I run on other linux, it will receive the process event(fork/exit/exec).

[bgilbert]

Thanks for the report. I've submitted coreos/coreos-overlay#3524 to enable reporting of process events.

[bgilbert]

This should be fixed in the next alpha, currently expected to be 2016.0.0.