pcbnew crash when duplicating (or arraying) and undoing a zone

[madworm]

Using the 'create array' option to step-and-repeat a block of layout works exactly once.

If you then undo all changes and repeat the same process it crashes every single time.

---

Application: kicad
Version: (2015-07-13 BZR 5935, Git c8f8256)-product release build
wxWidgets: Version 3.0.2 (release,wchar_t,compiler with C++ ABI 1002,GCC 4.8.3,STL containers,compatible with 2.8)
Platform: Linux 3.16.7-21-desktop x86_64, 64 bit, Little endian, wxGTK
Boost version: 1.54.0
         USE_WX_GRAPHICS_CONTEXT=OFF
         USE_WX_OVERLAY=OFF
         KICAD_SCRIPTING=OFF
         KICAD_SCRIPTING_MODULES=OFF
         KICAD_SCRIPTING_WXPYTHON=OFF
         USE_FP_LIB_TABLE=HARD_CODED_ON
         BUILD_GITHUB_PLUGIN=ON

[Nick Østergaard (nickoe)]

What exactly do you mean with step-and-repeat? Could you take a screenshot of the dialog such that I can make sure that I try to reproduce with the exact same settings?

Also, is this in the legacy canvas or GAL canvas?

I can't seem to reproduce just taking my array settings and apply them, then ctrl+z then do it again.

[madworm (madworm-de-inkscape)]

video: http://youtu.be/IqI2VkwAiI0

[Nick Østergaard (nickoe)]

I can confirm that I can make it crash with your board and doing it as you did in th video 5835.

Application: pcbnew
Version: (2015-06-27 BZR 5835)-kicad release build
wxWidgets: Version 3.0.2 (debug,wchar_t,compiler with C++ ABI 1008,GCC 5.1.0,wx containers,compatible with 2.8)
Platform: Linux 4.0.7-2-ARCH x86_64, 64 bit, Little endian, wxGTK
Boost version: 1.58.0
         USE_WX_GRAPHICS_CONTEXT=OFF
         USE_WX_OVERLAY=OFF
         KICAD_SCRIPTING=ON
         KICAD_SCRIPTING_MODULES=ON
         KICAD_SCRIPTING_WXPYTHON=ON
         USE_FP_LIB_TABLE=HARD_CODED_ON
         BUILD_GITHUB_PLUGIN=ON

[Nick Østergaard (nickoe)]

... that version info is wrong, I meant 2015-07-15 BZR 5948.

[John Beard (john-j-beard)]

Also confirmed. Seems this can also be hit by:

* Duplicate or array a connected zone (Ctrl-D) singly (doesn't need to be in a block)
* Undo
* Do anything to the zone that invokes RN_DATA::Recalculate() (eg array, duplicate, move exactly, move, edit properties,...)
* Crashes with segfault at "LSET layers = zone->GetLayerSet();" in RN_NET::processZones()

This only happens after undoing and only in GAL, so it is presumably to do with ratsnest consistency across the undo point?