Debug plasma crash when plasmoid calls serviceForSource

[Simone Gaiarin]

Hi,
the plasmoid I'm developing makes plasma crash when I call serviceForSource.
This happens sometimes, and I can reproduce it by flooding plasma with
serviceForSource requests (scrolling the mouse wheel over the plasmoid
creates a lot of this requests).
My plasmoid implements a custom dataengine.

I've tried to flood plasma with serviceForSource requests towards a
standard dataEngine (mpris) and I cannot reproduce the crash.

So I guess the crash is caused by my implementation. The point is that the
crash happens after calling serviceForSource from the plasmoid but before
reaching the dataEngine (the debug string in the dataengine is not shown
before the crash).

How can I debug this problem? Even though I've debug symbols installed,
drkonqi is not shown after the crash of plasma.

Thanks
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