connectiontest-preload-filter and connectiontest-style-filter fail from time to time

[mitya57]

Hey,

I am maintaining GammaRay package in Debian and we have noticed that two tests fail with segmentation fault from time to time.

This problem was already present in GammaRay 2.11.2 with Qt 5.15.2 in 2020, and today I got a chance to test it with GammaRay 3.0.0 and Qt 6.6, and it is still there. Of 19 builds since 2020, it failed 5 times (two other failures were because of different tests).

It can be reproduced by running this command a few times:

GAMMARAY_TEST_FILTER=1 ./obj-x86_64-linux-gnu/bin/gammaray --inprocess -unittest --listen tcp://127.0.0.1 -filtertest -i preload ./obj-x86_64-linux-gnu/bin/connectiontest

Here is a stack trace obtained with GammaRay 3.0.0 and Qt 6.6.