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add note regarding R15 compatibility

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1 parent ca4d208 commit 6a34104123f43f5d9dcd4610fd7d6785fada6d30 @RoadRunnr RoadRunnr committed Mar 19, 2012
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@@ -1,3 +1,11 @@
+**WARNING**: pre R15, it was possible to create a non-INET socket and
+ have gen_udp work on it. With R15 the check rules in
+ fd open() have been tightened to prevent this kind of
+ trickery. gen_link used this machanism to wrap its
+ sockets and will therefor not (yet) work with R15.
+ Work is underway to add generic async I/O support
+ to gen_socket that will restore gen_netlink to R15.
+
gen_netlink
===========

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