This is causing havoc with unix domain sockets,
xpra list ends up deleting them when it shouldn't.
No idea what is going on here - kernel bug?
Interesting read: Differences Between Windows and Unix Non-Blocking Sockets
r23754 will print a warning whenever the server finds that one of its sockets has gone MIA.
Could this have been caused by the socket changes from ticket:2125#comment:11 ?
I can't reproduce this any more!
io_callback return value fix from r23759 might have done it)
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2409