http://bugs.winehq.org/show_bug.cgi?id=19668
--- Comment #3 from Dan Kegel dank@kegel.com 2010-02-05 16:23:33 --- This is happening in the Chromium build. when devenv crashes, I see an old cmd.exe job sitting around, and a new cl.exe job also sitting around (maybe they're both waiting for some lock held by the crashed devenv.exe). I think /MP only affects cl, and devenv otherwise runs one thing at a time, so the fact that devenv is crashing when cmd just happens to have returned too soon suggests that this might be a real problem.