gksu doesn't use locking on nfs /home
Bug 13387 says lockfile writing was fixed in 1.2.3-2ubuntu4, this is 1.2.4-1ubuntu4.
The first time I run somehting with gksu, the window pops up OK, but this
message is output:
** (gksu:8732): WARNING **: Not using locking for nfs mounted lock file
Then all further times there's no window, just this message:
** (gksu:8748): CRITICAL **: fcntl error
** (gksu:8748): WARNING **: Lock taken by pid: -1. Exiting.
When manually removing ~/.gksu.lock, it works one more time, then leaves another