https://bugs.winehq.org/show_bug.cgi?id=35781
--- Comment #15 from Bruno Jesus 00cpxxx@gmail.com --- This is the only place I see that uses SO_RCVBUF / SO_SNDBUF related to pipes: http://source.winehq.org/source/server/named_pipe.c#L837
Reminds me of a test case in BSD where the test for setting these values always fail as seen in: http://test.winehq.org/data/7e874aed75765f3c017673178cfd64301b7ba3ed/bsd_fg-... (last test)
Would fixing bug 17195 solve this?