(gdb) bt
#0  rtl::Reference<rptui::OReportSection>::get (this=0x258) at /home/davido/projects/libo/include/rtl/ref.hxx:142
#1  0x00007fff608e3115 in VclPtr<rptui::OReportSection>::get (this=0x258) at /home/davido/projects/libo/include/vcl/vclptr.hxx:155
#2  0x00007fff608e25ac in rptui::OSectionWindow::getReportSection (this=0x0) at /home/davido/projects/libo/reportdesign/source/ui/inc/SectionWindow.hxx:104
#3  0x00007fff6094c206 in rptui::OReportWindow::showProperties (this=0x3810460, _xReportComponent=uno::Reference to (reportdesign::OSection *) 0x7fffb7f1e718) at /home/davido/projects/libo/reportdesign/source/ui/report/ReportWindow.cxx:303
#4  0x00007fff60955acb in rptui::OSectionWindow::showProperties (this=0x3828020) at /home/davido/projects/libo/reportdesign/source/ui/report/SectionWindow.cxx:290
#5  0x00007fff60959355 in rptui::OStartMarker::MouseButtonUp (this=0x38289e0, rMEvt=...) at /home/davido/projects/libo/reportdesign/source/ui/report/StartMarker.cxx:189
#6  0x00007ffff06ba4ab in ImplHandleMouseEvent (pWindow=0x15db820, nSVEvent=MOUSEBUTTONUP, bMouseLeave=false, nX=44, nY=200, nMsgTime=628117, nCode=1, nMode=(SIMPLECLICK | SELECT)) at /home/davido/projects/libo/vcl/source/window/winproc.cxx:738
#7  0x00007ffff06c3875 in ImplHandleSalMouseButtonUp (pWindow=0x15db820, pEvent=0x7fffffffc5f8) at /home/davido/projects/libo/vcl/source/window/winproc.cxx:2090
#8  0x00007ffff06bde4f in ImplWindowFrameProc (_pWindow=0x15db820, nEvent=4, pEvent=0x7fffffffc5f8) at /home/davido/projects/libo/vcl/source/window/winproc.cxx:2428
#9  0x00007fffe279331a in SalFrame::CallCallback (this=0x15dc340, nEvent=4, pEvent=0x7fffffffc5f8) at /home/davido/projects/libo/vcl/inc/salframe.hxx:244
#10 0x00007fffe2787408 in GtkSalFrame::signalButton (pEvent=0x1861d10, frame=0x15dc340) at /home/davido/projects/libo/vcl/unx/gtk/window/gtksalframe.cxx:3293
#11 0x00007fffe21dc9f5 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#12 0x00007fffea577318 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#13 0x00007fffea588cad in ?? () from /usr/lib64/libgobject-2.0.so.0
#14 0x00007fffea590689 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#15 0x00007fffea590c72 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#16 0x00007fffe22ec884 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#17 0x00007fffe21db1a4 in gtk_propagate_event () from /usr/lib64/libgtk-x11-2.0.so.0
#18 0x00007fffe21db55b in gtk_main_do_event () from /usr/lib64/libgtk-x11-2.0.so.0
#19 0x00007fffe1e4bb3c in ?? () from /usr/lib64/libgdk-x11-2.0.so.0
#20 0x00007fffed6cb316 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#21 0x00007fffed6cb668 in ?? () from /usr/lib64/libglib-2.0.so.0
#22 0x00007fffed6cb70c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#23 0x00007fffe2741d5b in GtkData::Yield (this=0x622900, bWait=true, bHandleAllCurrentEvents=false) at /home/davido/projects/libo/vcl/unx/gtk/app/gtkdata.cxx:577
#24 0x00007fffe2747987 in GtkInstance::Yield (this=0x622780, bWait=true, bHandleAllCurrentEvents=false) at /home/davido/projects/libo/vcl/unx/gtk/app/gtkinst.cxx:398
#25 0x00007ffff0bffe38 in ImplYield (i_bWait=true, i_bAllEvents=false) at /home/davido/projects/libo/vcl/source/app/svapp.cxx:353
#26 0x00007ffff0bfad70 in Application::Yield () at /home/davido/projects/libo/vcl/source/app/svapp.cxx:382
#27 0x00007ffff0bfad3c in Application::Execute () at /home/davido/projects/libo/vcl/source/app/svapp.cxx:336
#28 0x00007ffff77c9209 in desktop::Desktop::Main (this=0x7fffffffd940) at /home/davido/projects/libo/desktop/source/app/app.cxx:1605
#29 0x00007ffff0c05da1 in ImplSVMain () at /home/davido/projects/libo/vcl/source/app/svmain.cxx:162
#30 0x00007ffff0c07458 in SVMain () at /home/davido/projects/libo/vcl/source/app/svmain.cxx:196
#31 0x00007ffff7823132 in soffice_main () at /home/davido/projects/libo/desktop/source/app/sofficemain.cxx:96
#32 0x000000000040094d in sal_main () at /home/davido/projects/libo/desktop/source/app/main.c:48
#33 0x0000000000400927 in main (argc=1, argv=0x7fffffffdae8) at /home/davido/projects/libo/desktop/source/app/main.c:47