[systemd-devel] simultaneous udp listeners for ipv4+6 caused systemd to go into a loop

Jan Engelhardt jengelh at inai.de
Mon Feb 11 19:56:43 PST 2013

On Wednesday 2012-12-05 05:59, AbH Belxjander Draconis Serechai wrote:

>It is asking for the same resource twice in the way I read that
>aren't IPv4 and IPv6 sharing socket space?

They share address space; IPv4 is blended into IPv6 at 
::ffff:0000:0000/96, and so something listening on [::] also listens on by default.

>that would be a resource allocation error if true right?

Something like "Attempted double-use", EADDRINUSE.

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