How to debug crash in object->metaObject()->className() of err_method_notfound method

SePavel

Hello,

I am researching crash of the application that use QT 5.9.7 and I have get the following stacktrace

QMetaObject::className
QMetaObjectPrivate::indexOfSignalRelative
err_method_notfound

Even I have the sources of application and QT they are rather complex to find out the problem at once. I suppose that something bad happend during application exit.

Can anyone give me the idea of how I can get more details for this crash?

Regards,
Pavel

SGaist

Hi and welcome to devnet,

Where in your code those this crash start ?

SePavel

Actually QT is used by PIVX project and I am not familiar with all code, so I try to find the start point. This issue I can reproduce by autotest with start/stop process operations. I suppose that there is some race condition that happen rare

SGaist

In that case comment all the code that makes the test crash and te-add stuff gradually until the test starts to crash again. It should give you clues about what is going on.