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Subject: Re: mpd5/Netgraph issues after upgrading to 7.4
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> T> Ah, I found where EPERM comes from. Will fix it soon.
> Sorry, I was wrong :(

I managed to track down EPERMs back to ng_make_node() call from
ng_mkpeer() in netgraph/ng_base.c:1460.

I'll add some additional printfs inside ng_make_node().