Application does no longer start in Qt Creator once it has run into segfault in Linux

[anda_skoa]

Yes, on Unix shared memory is "owned" by the operating system itself: http://qt-project.org/doc/qt-4.8/qsh...y.html#details

An approach that should work better cross-platform is using a QLocalServer.
Has the additional benefit that you can use QLocalSocket in the second instance to communicate with the first one, e.g. passing command line arguments of the new invocation.

Cheers,
_