I'm also experiencing this bug, between a server running edgy ubuntu- server with nfs-kernel-server installed, and a desktop running edgy ubuntu-desktop with nfs-common installed.
Whether I transfer the files through using Nautilus or a terminal, transfer TO the NFS share hangs my desktop (completely but temporarily; Ctrl-Alt-Backspace will not work, but the desktop is entirely usable when transfer finishes); transfer FROM the share proceeds at nearly the same speed, but doesn't result in any noticeable slowdown of GNOME. I've attached the result of some tests I found in the official NFS HOW- TO: http://nfs.sourceforge.net/nfs-howto/ar01s05.html. Again, the former freezes GNOME; the latter does not. I can't find any useful information in dmesg. The speeds are comparable to using SCP. ** Attachment added: "Test commands" http://librarian.launchpad.net/5787342/nfstest.txt -- System hangs when copying to NFS mounts https://launchpad.net/bugs/71212 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs