https://bugs.winehq.org/show_bug.cgi?id=49624
--- Comment #7 from Stefan Dösinger stefan@codeweavers.com --- For me the sysctl change and ulimit -n 8192 improve the situation. The failing recvmsg is gone and cefclient.exe starts up, but the renderer process hangs. The same happens in wargaming.net game center, which originally triggered my interest in this.
I'll keep investigating. Maybe there is an unrelated regression on top of this regression.