Here is a better backtrace with debug symbols on and bt full:


(gdb) bt full
#0  0x0000000000000000 in  ()
#1  0x00007ffff6e769e8 in Inkscape::XML::SimpleNode::changeOrder(Inkscape::XML::Node*, Inkscape::XML::Node*) (this=0x47112d0, generic_child=0x4786c10, generic_ref=0x2e9c040)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/xml/simple-node.cpp:482
        __PRETTY_FUNCTION__ = "virtual void Inkscape::XML::SimpleNode::changeOrder(Inkscape::XML::Node*, Inkscape::XML::Node*)"
        child = 0x7fffffffb860
        ref = 0x7fffffffb860
        prev = 0x2e9c0e0
        tracker = 
            {<Inkscape::Debug::EventTrackerBase> = {_vptr.EventTrackerBase = 0x7fffffffb830, _active = 123}, <No data fields>}
        next = 0x7fffffffb860
#2  0x00007ffff70590d5 in SPItem::lowerToBottom() (this=0x3cfa870)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/sp-item.cpp:331
        ref = 0x2e9c040
        bottom = 
            {static stateful_value_traits = false, members_ = {nodeptr_ = 0x2e9c0e0}}
#3  0x00007ffff6e807bd in box3d_set_z_orders(SPBox3D*) (box=0x2e9c000)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/box3d.cpp:1092
        i = 0
        sides = 
          std::map with 6 elements = {[0] = 0x2e959a0, [1] = 0x7841c90, [2] = 0x3cfa870, [3] = 0x7851410, [4] = 0x7853ce0, [5] = 0x78564e0}
        side = {first = 2, second = }
#4  0x00007ffff69e9754 in Inkscape::UI::Tools::Box3dTool::drag(unsigned int) (this=0x2e92e70)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/ui/tools/box3d-tool.cpp:559
        __PRETTY_FUNCTION__ = "void Inkscape::UI::Tools::Box3dTool::drag(guint)"
#5  0x00007ffff69e84da in Inkscape::UI::Tools::Box3dTool::root_handler(_GdkEvent*---Type <return> to continue, or q <return> to quit---
) (this=0x2e92e70, event=0x3856280)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/ui/tools/box3d-tool.cpp:294
        motion_w = 
            {<boost::additive<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>> = {<boost::additive1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> >> = {<boost::addable1<Geom::Point, boost::subtractable1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> > >> = {<boost::subtractable1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Poi---Type <return> to continue, or q <return> to quit---
nt, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> >> = {<boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>> = {<boost::totally_ordered1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> >> = {<boost::less_than_comparable1<Geom::Point, boost::equality_comparable1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> > >> = {<boost::equality_comparable1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> >> = {<boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::Mu---Type <return> to continue, or q <return> to quit---
ltipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>> = {<boost::multiplicative2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > >> = {<boost::multipliable2<Geom::Point, double, boost::dividable2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > > >> = {<boost::dividable2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<G---Type <return> to continue, or q <return> to quit---
eom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass>> = {<Geom::EmptyClass> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _pt = {40.78350830078125, -271.441162109375}}
        motion_dt = 
            {<boost::additive<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>> = {<boost::additive1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> >> = {<boost::addable1<Geom::Point, boost::subtractable1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::Multipl---Type <return> to continue, or q <return> to quit---
iableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> > >> = {<boost::subtractable1<Geom::Point, boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t> >> = {<boost::totally_ordered<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>, boost::detail::empty_base<Geom::Point>, boost::detail::true_t>> = {<boost::totally_ordered1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> >> = {<boost::less_than_comparable1<Geom::Point, boost::equality_comparable1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> > >> = {<boost::equality_comparable1<Geom::Point, boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncomm---Type <return> to continue, or q <return> to quit---
utative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t> >> = {<boost::multiplicative<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >, boost::detail::false_t>> = {<boost::multiplicative2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > >> = {<boost::multipliable2<Geom::Point, double, boost::dividable2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > > >> = {<boost::dividable2<Geom::Point, double, Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Affine, Geom::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > > >> = {<Geom---Type <return> to continue, or q <return> to quit---
::MultipliableNoncommutative<Geom::Point, Geom::Translate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Rotate, Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Scale, Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::HShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> > >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::VShear, Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass> >> = {<Geom::MultipliableNoncommutative<Geom::Point, Geom::Zoom, Geom::EmptyClass>> = {<Geom::EmptyClass> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _pt = {116.52430943080356, 775.546177455357}}
        m = 
          @0xda4688: {guide = {<Inkscape::LineSnapper> = {<Inkscape::Snapper> = {_vptr.Snapper = 0x7ffff7d20720 <vtable for Inkscape::GuideSnapper+16>, _snapmanager = 0xda4688, _snap_enabled = true, _snap_visible_only = true}, <No data fields>}, <No data fields>}, object = {<Inkscape::Snapper> = {_vptr.Snapper = 0x7ffff7d21248 <vtable for Inkscape::ObjectSnapper+16>, _snapmanager = 0xda4688, _snap_enabled = true, _snap_visible_only = true}, _candidates = 0x234d8b0, _points_to_snap_to = 0x234d910, _paths_to_snap_to = 0x234d930}, snapprefs = {_active_snap_targets = {-1 <repeats 16 times>, 0, 0, 0, 0, 0, -1 <repeats 11 times>, 1, 0, 1, 0, 0, -1, -1, 0, -1, 0, 0, -1 <repeats 22 times>, 1, -1, -1, 1, -1, -1, -1, -1, 0, -1 <repeats 54 times>, 1, 0, -1, 0, -1, 0, -1, -1}, _snap_enabled_globally = true, _snap_postponed_globally = true, _strict_snapping = true, _snap_perp = false, _snap_tang = false, _grid_tolerance = 10000, _guide_tolerance = 20, _object_tolerance =---Type <return> to continue, or q <return> to quit---
 20}, _named_view = 0xda4560, _items_to_ignore = std::vector of length 1, capacity 1 = {0x0}, _rotation_center_source_items = std::vector of length 0, capacity 0, _guide_to_ignore = 0x0, _desktop = 0x0, _snapindicator = true, _unselected_nodes = 0x0}
        dragging = true
        document = 0x15f9dc0
        selection = 0x1639e60
        prefs = 0x881be0
        snaps = 12
        cur_persp = 0x7841800
        ret = 0
#6  0x00007ffff6a6a1b0 in Inkscape::UI::Tools::sp_event_context_virtual_root_handler(Inkscape::UI::Tools::ToolBase*, _GdkEvent*) (event_context=0x2e92e70, event=0x3856280)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/ui/tools/tool-base.cpp:970
        desktop = 0x1637c00
        ret = 0
#7  0x00007ffff6a6a166 in Inkscape::UI::Tools::sp_event_context_root_handler(Inkscape::UI::Tools::ToolBase*, _GdkEvent*) (event_context=0x2e92e70, event=0x3856280)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/ui/tools/tool-base.cpp:958
#8  0x00007ffff6e9b9fc in sp_desktop_root_handler(SPCanvasItem*, _GdkEvent*, SPDesktop*) (event=0x3856280, desktop=0x1637c00)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/desktop-events.cpp:86
        watch = false
        first = false
#13 0x00007ffff447c812 in <emit signal ??? on instance 0x2db1a50 [SPCanvasAcetate]> (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>)
    at gsignal.c:3441
Python Exception <class 'gdb.error'> Attempt to dereference a generic pointer.: 
#14 0x00007ffff672c929 in SPCanvas::emitEvent(_GdkEvent*) (this=0x80e4a0 [SPCanvas], event=0x38561f0)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/display/sp-canvas.cpp:1233
---Type <return> to continue, or q <return> to quit---
        parent = 0x80e4a0 [SPCanvas]
        mask = 4
        ev = 0x3fda290
        item = 0x2db1a50 [SPCanvasAcetate]
        finished = 0
#15 0x00007ffff672d37f in SPCanvas::handle_motion(_GtkWidget*, _GdkEventMotion*) (widget=0x80e4a0 [SPCanvas], event=0x38561f0)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/display/sp-canvas.cpp:1471
        status = 32767
        canvas = 0x80e4a0 [SPCanvas]
#20 0x00007ffff447c812 in <emit signal ??? on instance 0x80e4a0 [SPCanvas]> (instance=instance@entry=0x80e4a0, signal_id=<optimized out>, detail=detail@entry=0)
    at gsignal.c:3441
Python Exception <class 'gdb.error'> Attempt to dereference a generic pointer.: 
#21 0x00007fffee631ba4 in gtk_widget_event_internal (widget=0x80e4a0 [SPCanvas], event=0x38561f0) at gtkwidget.c:7731
        signal_num = <optimized out>
        return_val = 0
        handled = 0
        event = 0x38561f0
        widget = 0x80e4a0 [SPCanvas]
#22 0x00007fffee4f51ce in propagate_event (topmost=<optimized out>, event=<optimized out>, widget=0x80e4a0 [SPCanvas]) at gtkmain.c:2545
        tmp = <optimized out>
        handled_event = <optimized out>
        handled_event = 0
#23 0x00007fffee4f51ce in propagate_event (widget=<optimized out>, event=0x38561f0, captured=<optimized out>, topmost=0x0) at gtkmain.c:2647
        handled_event = 0
#24 0x00007fffee4f6ff0 in gtk_main_do_event (event=0x38561f0) at gtkmain.c:1878
        event_widget = <optimized out>
        grab_widget = 0x80e4a0 [SPCanvas]
        topmost_widget = <optimized out>
        window_group = 0x4016f40 [GtkWindowGroup]
        rewritten_event = <optimized out>

        device = 0x67f8e0 [GdkX11DeviceXI2]
---Type <return> to continue, or q <return> to quit---
        tmp_list = <optimized out>
        __func__ = "gtk_main_do_event"
#25 0x000000000041887e in snooper(GdkEvent*, gpointer) (event=0x38561f0)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/main.cpp:1012
#26 0x00007fffee03a5c5 in _gdk_event_emit (event=event@entry=0x38561f0)
    at gdkevents.c:73
#27 0x00007fffee0667d2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at gdkeventsource.c:367
        display = <optimized out>
        event = 0x38561f0
#28 0x00007ffff32271d7 in g_main_context_dispatch (context=0x837130)
    at gmain.c:3154
        dispatch = 0x7fffee0667b0 <gdk_event_source_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = <optimized out>
        need_destroy = <optimized out>
        source = 0x837040
        current = 0x2dad2a0
        i = 0
#29 0x00007ffff32271d7 in g_main_context_dispatch (context=context@entry=0x837130) at gmain.c:3769
#30 0x00007ffff3227408 in g_main_context_iterate (context=0x837130, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 2
        fds = 0x3c7f780
#31 0x00007ffff3227722 in g_main_loop_run (loop=0x3c033e0) at gmain.c:4034
        __func__ = "g_main_loop_run"
---Type <return> to continue, or q <return> to quit---
#32 0x00007fffee4f6245 in gtk_main () at gtkmain.c:1269
        loop = 0x3c033e0
#33 0x0000000000418a74 in sp_main_gui(int, char const**) (argc=1, argv=0x7fffffffcd18)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/main.cpp:1049
        main_instance = 
          {<sigc::trackable> = {callback_list_ = 0x0}, _vptr.Main = 0x7ffff05da2f0 <vtable for Gtk::Main+16>, static signal_key_snooper_ = {<No data fields>}, static instance_ = 0x7fffffffcb50}
        fl = 0x0
        retVal = 0
        __PRETTY_FUNCTION__ = "int sp_main_gui(int, const char**)"
        create_new = true
#34 0x0000000000418262 in main(int, char**) (argc=1, argv=0x7fffffffcd18)
    at /home/shlomif/Download/unpack/graphics/inkscape/inkscape/src/main.cpp:789
        inkscape_localedir = 0x0
        use_gui = 1
        retcode = 32767
(gdb) q
A debugging session is active.

	Inferior 1 [process 14585] will be killed.

Quit anyway? (y or n) t
Please answer y or n.
A debugging session is active.

	Inferior 1 [process 14585] will be killed.

Quit anyway? (y or n) y
shlomif@telaviv1:~/Download/unpack/graphics/inkscape/B$ exit
exit

Script done on Mon 05 Sep 2016 13:45:03 IDT