Check which thread has locked a QMutex

Question

I am facing a weird deadlock when doing something in our database program. The critical point is when thread tries to lock a QMutex:

QMutexLocker locker(&tableMutex_);

That makes the program go stuck.

I'm baffled, because no other thread - AFAIK - has access to this mutex. What I want to do now is to figure out which thread has locked it. How could I do that?

Answer 1

Interrupt your hanging program in a debugger and examine the stack traces of all threads.