[systemd-devel] Invalid poll event on socket

[Albert Strasheim]

Hello

On Mon, Apr 25, 2011 at 10:03 AM, Albert Strasheim <fullung at gmail.com> wrote:
> With systemd 25 I get:
>> systemd[1]: Got invalid poll event on socket.
> systemd[1]: foo.socket: Got invalid poll event (0x11) on socket.

I think I know what's going on here.

My service that is consuming this socket is written in Go.

Go currently has an issue where if you close a socket, it also calls
shutdown on that socket. This has been discussed on the Go mailing
list, but not fixed yet:

http://groups.google.com/group/golang-dev/browse_thread/thread/c6ef223b67936f07

It seems this happens even for listen sockets, which causes an
EPOLLHUP, which is 0x10.

Maybe systemd needs to guard against this kind of "buggy" service
behavior, where the service "cleans up" the socket that systemd has
passed to it?

Regards

Albert