Kicad 5.99 giving segmentation fault when filling zones touching a pad or outline

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1

Hi everyone,

I encounter a strange behaviour I suspect it might be a bug or I am doing something very wrong. I am trying to build a PCB by python scripting.
I place some connectors, an outline and start drawing zones (copper pours). I have a zone that touches the outline and one connector and I observe the following:

  1. If the zone touches both the outline and the footprint, but I don’t call “ZONE_FILLER Fill”, but instead save the board, open it with the GUI and press ‘b’, everything works.
  2. If the zone touches both the outline and the footprint, but I call “ZONE_FILLER Fill” in my code, I get a segmentation fault.
  3. If the zone touches either the outline or the footprint, but I call “ZONE_FILLER Fill” in my code, I get a segmentation fault.
  4. If the zone touches neither the outline nor the footprint, andI call “ZONE_FILLER Fill” in my code, everything works.

The thing that is bugging me the most is that filling the zones with the GUI works, and by code it crashes. I uploaded a python script that reproduces the behaviour by changing the flags in lines 107 and 108 here:

I am running nightly build with the following version: (though I tried with the latest nightly build and I got again segmentation fault)

Application: KiCad (64-bit)
Version: (5.99.0-11336-g5116fa6d12), release build
Libraries:
wxWidgets 3.1.5
libcurl/7.74.0-DEV Schannel zlib/1.2.11
Platform: Windows 10 (build 19042), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
Date: Jul 6 2021 09:00:18
wxWidgets: 3.1.5 (wchar_t,STL containers)
Boost: 1.75.0
OCC: 7.5.0
Curl: 7.74.0-DEV
ngspice: 34
Compiler: Visual C++ 1928 without C++ ABI
Build settings:
KICAD_USE_OCC=ON
KICAD_SPICE=ON

I hope I explained my problem and looking forward to hearing from you guys!
Thanks!

2

Please update to the most recent build, there have been many fixes to DRC recently and see if it is still crashing

3

If you are adding components or other objects to the board they don’t get fully processed until the board is reloaded (or your action script ends, if it’s a plugin).
Try reloading the board file before doing the fill.

4

Indeed.
If KiCad does not give a segmentation fault if the PCB is saved and opened again, then that suggests you’re missing something in your Python script.

On the other hand…
KiCad should not give a Segmentation Fault anyway, but the error should be caught and turned into something understandable by mere humans.

5

Saving and loading the board before filling the zones works like a charm!

Thanks a lot!

6

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