http://bugs.winehq.org/show_bug.cgi?id=9142
--- Comment #20 from Andrew Zabolotny anpaza@mail.ru 2009-10-19 08:44:04 --- Couldn't wineserver simply retry on EAGAIN (at least once)? In any case EAGAIN suggest to try opening the file again, so doing that once more shouldn't be a error. And this happens in very rare cases anyway, and shouldn't be a performance hit for the usual code flow.