[Qt-creator] SIGSTOP when trying to debug application in QTCreator running on an Ubuntu 18.04

[Richard Weickelt]

> I am trying to debug my C++ code in QtCreator (version 4.13.1 based on Qt
> 5.15.1) which is running on an Ubuntu 18.04 virtual machine hosted on my
> Windows 10 using VirtualBox. As soon as I start the application in debug
> mode, I get the error:

Is your application based upon Qt 5.15.1 as well and uses QProcess maybe?
Then you are running into https://bugreports.qt.io/browse/QTBUG-86319 maybe.
It seems to work with Qt 5.15.0, no idea about 5.15.2.