P3: Somewhat important
Qt Creator 4.2.1, Qt Creator 4.7.0
Debian 8 amd64 (GCC 4.9.2, Valgrind 3.10.0)
Debian 9 amd64 (GCC 6.4.0, Valgrind 3.12.0)
Debian 10 amd64 (GCC 8.3.0, Valgrind 3.14.0)
Qt 5.7.1 from online installer
Qt 5.13.2 from online installer
When I save suppression after Memory debug run, clicking Save button does not create suppression file, dialog does not close, and CPU usage for QtCreator goes up to 100%. Dialog can be moved though.
It seems I can reproduce it with Qt examples, with any wanted suppression.
When I launch QtCreator from terminal, I see flood of messages:
SOFT ASSERT: "removed" in file /work/build/qt-creator/src/plugins/valgrind/suppressiondialog.cpp, line 241