That sounds like https://bugreports.qt.io/browse/QTCREATORBUG-21428
As I commented in that bug report, Qt Creator stops the build command (in your case cmake --build, Qt Creator doesn’t know about any processes that starts), first “nicely” and after a timeout “not so nicely”. I suppose when killing “not so nicely” the system might not care about subprocesses. Is the “cmake” process gone after you cancel the build? Is the behavior different for you with a previous Qt Creator version? I’m not aware of changes in Qt Creator in that regard. Br, Eike > On 9. Jan 2019, at 03:45, Michael Jackson <mike.jack...@bluequartz.net> wrote: > > Just updated from Xcode 9.x to 10.1 on macOS 10.13.6 and using QtCreator > 4.8.0. My project is CMake based which means the build command is something > like 'cmake --build . --target ALL'. After I start the build if I want to > stop the build I usually hit the red square button to stop the build and > before this would work just fine. I have now noticed that the build keeps > going (all my CPUs are pegged at 100%). I have to drop to a terminal and do > "killall clang" to get them to stop. This happens on both a Mac Pro (2012) > and a 2013 MacBook Pro. Both running macOS 10.13.6 and Xcode 10.1. CMake > version is 3.13.0 on both machines. > > Has anyone else seen this type of behavior? > > Thanks > -- > Michael Jackson | Owner, President > BlueQuartz Software > [e] mike.jack...@bluequartz.net > [w] www.bluequartz.net > > > > > _______________________________________________ > Qt-creator mailing list > Qt-creator@qt-project.org > https://lists.qt-project.org/listinfo/qt-creator -- Eike Ziller Principal Software Engineer The Qt Company GmbH Rudower Chaussee 13 D-12489 Berlin eike.zil...@qt.io http://qt.io Geschäftsführer: Mika Pälsi, Juha Varelius, Mika Harjuaho Sitz der Gesellschaft: Berlin, Registergericht: Amtsgericht Charlottenburg, HRB 144331 B _______________________________________________ Qt-creator mailing list Qt-creator@qt-project.org https://lists.qt-project.org/listinfo/qt-creator