The gc compiler determines the type of the Data field in the syscall.RawSockaddr type by looking at the system header files. The gccgo library just has a fixed definition for it. Unfortunately the fixed definition does not match the header files on PPC64 systems. This is https://golang.org/issue/11469 . This patch from Lynn Boger fixes this. Bootstrapped and ran Go testsuite on x86_64-unknown-linux-gnu. Committed to mainline.
Ian
