Gnome::Canvas::Text::property_attributes() problem

Hi everybody,

I'm using gtkmm 2.2.9, gnomecanvasmm 2.0.1 and pangomm 2.2.9, here is a piece of my code:

Gnome::Canvas::Text *attribtext;
gunichar x;
Glib::ustring markedutext = "<i>test</i>", s;
Pango::AttrList palx(markeduptext, 0, s, x);
attribtext->property_text() = s;
attribtext->property_attributes() = palx; 

The problem is that
attribtext->property_attributes() = palx; 
causes randomly segmentation faults.
Am i doing any mistake or is it a bug?
Thx,
Marcello

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