[Xcb] [Socket handoff] Waiting forever...

[Clemens Eisserer]

> Sorry, I think I've misread your stacktraces - they should be two
> different stacktraces and not the stacktraces of two simultaneous
> threads :)
Sorry that I didn't make that clear - yes those were two independent
stack-traces of situations when it got stuck.
Access to xlib itself is guarded by java-level locks, which are quite
a good deal faster than libc mutex-s :)

- Clemens