https://bugs.winehq.org/show_bug.cgi?id=55833
--- Comment #27 from Bernhard Übelacker bernhardu@mailbox.org --- (In reply to tuxway+wine from comment #26)
Looked like this function is called multiple times even with my applied patch.
Startup of an wine application includes start of wineserver and several other processes like winedevice.exe or explorer.exe. These might cross this WARN line too.
I guess common practice is to start in one terminal window all the wine infrasturcture processes by e.g. "wine notepad", and then in another terminal just the interesting process. To better distinguish better it mith also be helpful to start with WINEDEBUG=+pid. Then the first part of the logging lines show the PID.