[Bug 43728] Magic: The Gathering Online intensive CPU usage when idle

https://bugs.winehq.org/show_bug.cgi?id=43728

--- Comment #14 from Anton Romanov  ---
(In reply to Panard from comment #13)
> However, I cannot find who is calling it, I found no matching call in the
> wine source code.. (parameters/logs do not match). Could it be called
> directly by MTGO??

It is most likely called by CLR

Also see related 
https://blogs.msdn.microsoft.com/cbrumme/2003/04/17/managed-blocking/
https://blogs.msdn.microsoft.com/timng/2006/09/07/com-re-entrancy-and-messag...