Long hang on application termination

[tuli]

When i perform certain actions with my program, the program hangs for ~10-15 seconds on termination, at 100% cpu usage.

The main thread is destrying a custom object (as it should), but appears to have some issues within the destructor of an

typedef QMap<quint64, QSet< quint64> > trzf_cache;

typedef QMap<quint64, QSet< quint64> > trzf_cache;

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object.

So the hang happens within Qt-map code.

Any ideas how any of my code could cause this?


edit:
completely rewrote posts with new details.