What does 'go version' print?
go version devel +3ca54dd30864 Sat Mar 22 11:05:40 2014 -0700 linux/amd64
What steps reproduce the problem?
http://play.golang.org/p/TjtDpeafuU
1. Create bufio.Writer w and io.Reader r
2. Write a few bytes to w (if the internal buffer is empty, it won't reproduce)
3. Call ReadFrom(r)
What happened?
ReadFrom returns when r.Read returns (0, nil).
What should have happened instead?
ReadFrom should continue reading r until r.Read returns (n, <non-nil>).