Program received signal SIGSEGV, Segmentation fault.
at0 (this=<optimized out>) at ../../trunk/src/2geom/d2.h:119
119	        return Point(f[X].at0(), f[Y].at0());
(gdb) bt
#0  at0 (this=<optimized out>) at ../../trunk/src/2geom/d2.h:119
#1  Geom::force_continuity (f=..., tol=0, closed=<optimized out>)
    at ../../trunk/src/2geom/d2-sbasis.cpp:143
#2  0x0000000000758fdc in Inkscape::LivePathEffect::LPEBendPath::doEffect_pwd2
    (this=0xac8adb0, pwd2_in=...)
    at ../../trunk/src/live_effects/lpe-bendpath.cpp:95
#3  0x000000000074d308 in Inkscape::LivePathEffect::Effect::doEffect_path (
    this=0x62, path_in=...) at ../../trunk/src/live_effects/effect.cpp:546
#4  0x000000000074d06a in Inkscape::LivePathEffect::Effect::doEffect (
    this=0xac8adb0, curve=0x3346fe0)
    at ../../trunk/src/live_effects/effect.cpp:519
#5  0x00000000005776eb in SPLPEItem::performPathEffect (this=0xac0bbf0, 
    curve=0x3346fe0) at ../../trunk/src/sp-lpe-item.cpp:254
#6  0x00000000005a5611 in SPStar::set_shape (this=0xac0bbf0)
    at ../../trunk/src/sp-star.cpp:455
#7  0x00000000005a4f22 in SPStar::update_patheffect (this=0xac0bbf0, 
    write=true) at ../../trunk/src/sp-star.cpp:227
#8  0x000000000057712f in sp_lpe_item_update_patheffect (
    lpeitem=<optimized out>, wholetree=<optimized out>, write=true)
    at ../../trunk/src/sp-lpe-item.cpp:325
#9  0x0000000000592db0 in sigc::internal::signal_emit2<void, SPObject*, unsigned int, sigc::nil>::emit (impl=0xac8c350, _A_a1=@0x7fffffffcf98: 0xac37ec0, 
    _A_a2=@0x7fffffffcfa4: 1) at /usr/include/sigc++-2.0/sigc++/signal.h:1252
---Type <return> to continue, or q <return> to quit---
#10 0x0000000000591eee in emit (
    _A_a1=<error reading variable: Cannot access memory at address 0x62>, 
    _A_a2=<error reading variable: Cannot access memory at address 0x0>, 
    this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2921
#11 SPObject::emitModified (this=0xac37ec0, 
    flags=<error reading variable: Cannot access memory at address 0x0>)
    at ../../trunk/src/sp-object.cpp:1236
#12 0x0000000000544be7 in SPDefs::modified (this=<optimized out>, flags=0)
    at ../../trunk/src/sp-defs.cpp:68
#13 0x0000000000591ed3 in SPObject::emitModified (this=0x2c594d0, flags=2)
    at ../../trunk/src/sp-object.cpp:1234
#14 0x00000000005688ba in SPGroup::modified (this=<optimized out>, flags=0)
    at ../../trunk/src/sp-item-group.cpp:213
#15 0x000000000059dc3d in SPRoot::modified (this=0x2c56bd0, flags=2)
    at ../../trunk/src/sp-root.cpp:301
#16 0x0000000000591ed3 in SPObject::emitModified (this=0x2c56bd0, flags=2)
    at ../../trunk/src/sp-object.cpp:1234
#17 0x00000000004ae2b6 in _emitModified (this=0x20e5ea0)
    at ../../trunk/src/document.cpp:1003
#18 SPDocument::_updateDocument (this=0x20e5ea0)
    at ../../trunk/src/document.cpp:1170
#19 0x00000000004ae325 in SPDocument::ensureUpToDate (this=0x20e5ea0)
    at ../../trunk/src/document.cpp:1193
---Type <return> to continue, or q <return> to quit---
#20 0x00000000004b4190 in Inkscape::DocumentUndo::maybeDone (doc=0x20e5ea0, 
    key=0x0, event_type=239, event_description=...)
    at ../../trunk/src/document-undo.cpp:153
#21 0x00000000007f0073 in Inkscape::LivePathEffect::PathParam::on_paste_button_click (this=<optimized out>)
    at ../../trunk/src/live_effects/parameter/path.cpp:448
#22 0x00007ffff5085988 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#23 0x00007ffff38752d5 in g_closure_invoke ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007ffff3887342 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007ffff388f698 in g_signal_emit_valist ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007ffff388f8ff in g_signal_emit ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007ffff6b0c225 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#28 0x00007ffff38752d5 in g_closure_invoke ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff3886913 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007ffff388f698 in g_signal_emit_valist ()
---Type <return> to continue, or q <return> to quit---q
 from /usr/lib/x86_64-linux-gnuQuit