by ilarkin@crystalnix.com:

What does 'go version' print?

  go version go1.2 linux/amd64


What steps reproduce the problem?

  Code: http://play.golang.org/p/TasQabnlRu

    1. Create a new *net.TCPConn (using net.Accept)
    2. Call File()
    3. Close new file
    4. Set Read Deadline to 5 seconds
    5. Start reading


What happened?

  The reading is never finishes. As the result i see the following output:

    > New Connection: 127.0.0.1:33079
    > Fd: 7
    > 


What should have happened instead?

    > New Connection: 127.0.0.1:33079
    > Fd: 7
    > Error: read tcp 127.0.0.1:33079: i/o timeout


Please provide any additional information below.

I'm trying to understand why this code sample doesn't work. As i understand, File()
creates a copy of the underlying fd. And the new fd has no effect to the original.

One more thing... If i use only the SetReadDeadline function - timeout doesn't work. But
if i use it in couple with the syscall.SetsockoptTimeval function - it works.