Rectangle rounding handle ctrl+click wide aspect causes crash

[Greg Knight]

Per the shapes tutorial, create a rectangle with a 3:1 width to height aspect ratio. Move the top rounding handle to the midpoint (max deflection). Then ctrl+click that handle. Crash occurs.

Windows 10
Inkscape 0.92.1 r15371

[Eman Modnar (eman-mod)]

Cannot reproduce on 64 bit Linux, but right rounding handle seems to be misplaced after Ctrl+Click. See image.

[Alvin Penner (apenner)]

- reproduced on Windows 10, Inkscape 0.92.1 r15371
- load the attached file
- select the object
- click on rectangle tool F4
- ctrl-Click on top circle handle
- crash with no exit message, no save

[Alvin Penner (apenner)]

- reproduced on Windows 10, Inkscape 0.92+devel 15592

backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x000000006e1b955b in KnotHolderEntity::update_knot() ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
(gdb) bt
#0 0x000000006e1b955b in KnotHolderEntity::update_knot() ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#1 0x000000006e1bc48d in KnotHolder::knot_clicked_handler(SPKnot*, unsigned int) ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#2 0x000000006e4cb820 in sigc::internal::signal_emit2<void, SPKnot*, unsigned int, sigc::nil>::emit(sigc::internal::signal_impl*, SPKnot* const&, unsigned int const&) () from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#3 0x000000006e1bbda1 in sp_knot_handler(SPCanvasItem*, _GdkEvent*, SPKnot*) ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#4 0x000000006dcf2f5b in sp_marshal_BOOLEAN__POINTER ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#5 0x0000000063a4732c in g_closure_invoke (closure=0x12b0fa10, return_value=return_value@entry=0x66f3f0, n_param_values=2,
    param_values=param_values@entry=0x66f330, invocation_hint=invocation_hint@entry=0x66f290) at gclosure.c:804
#6 0x0000000063a5a612 in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=instance@entry=0x11a33600,
    emission_return=emission_return@entry=0x66f3f0, instance_and_params=instance_and_params@entry=0x66f330) at gsignal.c:3629
#7 0x0000000063a63b53 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=301054176,
    var_args=<optimized out>) at gsignal.c:3395
#8 0x0000000063a64238 in g_signal_emit (instance=0x0, signal_id=187453280, detail=1) at gsignal.c:3441
#9 0x000000006dc07e75 in SPCanvas::emitEvent(_GdkEvent*) [clone .part.63] ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#10 0x000000006dc0cb6d in SPCanvas::handle_button(_GtkWidget*, _GdkEventButton*) ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libinkscape_base.dll
#11 0x000000000172e4c9 in _gtk_marshal_BOOLEAN__BOXEDv ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libgtk-3-0.dll
#12 0x0000000063a47567 in _g_closure_invoke_va (closure=closure@entry=0x66ccae0, return_value=0x66f770, return_value@entry=0x0,
    instance=instance@entry=0xade8b30, args=args@entry=0x172c804 <gtk_main_do_event+2340> "<\016éO_ÿÿ\017\037D", n_params=1,
    param_types=0x66ccf80) at gclosure.c:867
#13 0x0000000063a63852 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=107387712,
    var_args=0x172c804 <gtk_main_do_event+2340> "<\016éO_ÿÿ\017\037D") at gsignal.c:3294
#14 0x0000000063a64238 in g_signal_emit (instance=0x0, signal_id=187453280, detail=1) at gsignal.c:3441
#15 0x000000000190cafd in gtk_widget_event_internal.part ()
   from C:\Users\penne_000\AppData\Roaming\InkscapeBZR\build\inkscape\libgtk-3-0.dll
#16 0x000000000172be2a ...

[jazzynico (jazzynico)]

Marking duplicate of bug #1594877 "crashes on shift+click rectangle rounding".
Don't hesitate to comment if you think it's a different issue.