Hi,
There is a crash in WeatherEngine (kde-workspace) triggered by the fact
that Plasma::DataEngineManager::self() (kdelib) is invalid when
plasma-{desktop,device} are exiting. WeatherEngine::~WeatherEngine() calls
WeatherEngine::unloadIons(), which tries to use the invalid
Plasma::DataEngineManager::self(). The crash only happens if there is
something using WeatherEngine when plasma-{desktop,device} exit, of course.
There are several bug report about this crash:
https://bugs.kde.org/show_bug.cgi?id=223622
https://bugs.kde.org/show_bug.cgi?id=241509
https://bugs.kde.org/show_bug.cgi?id=261610
And counting. The reports were closed as upstrem but think we can
prevent the crash by adding a method to Plasma::DataEngineManager to check if
it is still valid. Using "if (Plasma::DataEngineManager::self()) {}" also
triggers the crash because of the way Plasma::DataEngineManager::self() is
implemented.
What do you think about adding a Plasma::DataEngineManager::valid()
method?
OBS: That crash is in WeatherEngine since it entered kde-workspace in 2009.
--
Lamarque V. Souza
KDE's Network Management maintainer
http://planetkde.org/pt-br
