This afternoon, I went off to UCT, to help Arno out with a sudden problem in TSL: When you try and log into KDE, it just hangs. And if you try and run a KDE application from Gnome, it hangs…
startkde, and spotted a hang that looked lock-related:
After some trial and error, it turned out, that the problem was the NFS mounted
/home. KDE wants it to be mounted with the options
async,lock. Then it’s happy. I don’t why how this turned up in a routine nightly Ubuntu feisty update. Maybe it was a backport?
Anyway, there you go: KDE is fussy about its locks.