Unable to close SCTP socket.
 

I create SCTP socket with port number 60011. The SCTP socket descriptor value is 18.
When I try to close the socket with the socket descriptor, sometimes it is not closed without errno.

What are the possible causes?
Any idea will be appreciated.

Thank you.

Have you peeled off any streams? I suspect the descriptor for the original session would have troubles if it is called while a peeled off stream is still open. It might be setting the session state waiting for the stream to close.

What errno value are you getting?

Thank you for your help.
I think I should check the peeled off stream out as your suggestion.