It happened again this morning. This time I didn't have a nautilus open, and there were no 'D' processes. One of the 2 sshfs mounts is unmounted, the other one not. Killing the remaining sshfs gets gnome-panel to be responsive again.
This starts to look a bit like https://bugs.launchpad.net/ubuntu/+source /sshfs-fuse/+bug/554749. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in ubuntu. https://bugs.launchpad.net/bugs/736730 Title: gnome-panel in uninterruptible sleep after system call -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs