enabling grease pencil tools causes blender to crash

[klankschap]

while trying to eable the grease pencil tools add-on, blender will crash and the core is dumped.

[Pullusb]

Ok can you give more information : What is your version of blender ? your OS ? Can you provide the crash-log ?

[klankschap]

hat is your version of blender ? all blender 2.9 versions seems to have the issue.

$ ./blender --factory-startup --debug-all

system-info.txt

blender-crash-log.txt

[klankschap]

Maybe this is related? In blender8 I can import numpy without any problem in the console. In blender9 however, it will crash blender.

blender8 uses #~ PYTHON INTERACTIVE CONSOLE 3.8.6 (default, Sep 25 2020, 09:36:53) [GCC 10.2.0]

blender9 seems to use an older version: PYTHON INTERACTIVE CONSOLE 3.7.7 (default, Jul 9 2020, 12:52:49) [GCC 9.3.1 20200408 (Red Hat 9.3.1-2)]

[Pullusb]

importing numpy crash blender ? So the crash is not related to the addon (that work fine for me) but to this specific event (the addon import indeed numpy). I think you might have another numpy module somewhere that cause the crash.

Check if you have any of it in modules folders. (have you installed some modules manually ?)

[klankschap]

a plain vanilla blender9 will crash importing numpy and there are other add-ons that will cause a crash too. like animation-nodes if I look at the blender info path, it only shows its own libraries, no references to my own python environment.

Python:

version: 3.7.7 (default, Jul 9 2020, 12:52:49) [GCC 9.3.1 20200408 (Red Hat 9.3.1-2)] file system encoding: utf-8:surrogateescape paths: '/home/vm/blender-2.9x/2.92/scripts/startup' '/home/vm/blender-2.9x/2.92/scripts/modules' '/home/vm/blender-2.9x/2.92/python/lib/python37.zip' '/home/vm/blender-2.9x/2.92/python/lib/python3.7' '/home/vm/blender-2.9x/2.92/python/lib/python3.7/lib-dynload' '/home/vm/blender-2.9x/2.92/python/lib/python3.7/site-packages' '/home/vm/blender-2.9x/2.92/scripts/freestyle/modules' '/home/vm/blender-2.9x/2.92/scripts/addons/modules' '/home/vm/.config/blender/2.92/scripts/addons/modules' '/home/vm/blender-2.9x/2.92/scripts/addons' '/home/vm/blender-2.9x/2.92/scripts/addons_contrib'

Python (External Binary):

binary path: '/home/vm/blender-2.9x/2.92/python/bin/python3.7m' version: Python 3.7.7

Directories:

scripts: '/home/vm/blender-2.9x/2.92/scripts/modules' '/home/vm/blender-2.9x/2.92/scripts' user scripts: '/home/vm/.config/blender/2.92/scripts' pref scripts: None datafiles: '/home/vm/.config/blender/2.92/datafiles' config: '/home/vm/.config/blender/2.92/config' scripts : '/home/vm/.config/blender/2.92/scripts' autosave: '/home/vm/.config/blender/2.92/autosave' tempdir: '/tmp/blender_vxko9N/'

[Pullusb]

Yeah but you can have a numpy module in thos listed path for exemple in the listed path : /home/vm/.config/blender/2.92/scripts/addons/modules check in there

and also in scripts : '/home/vm/.config/blender/2.92/scripts (if there is a modules folder in there)

[klankschap]

[~/.config/blender/2.92 $ tree . └── config ├── bookmarks.txt ├── platform_support.txt └── userpref.blend

1 directory, 3 files

[Pullusb]

Ok so sadly I can't help you on this matter. It's not related to the addon. You should head to blender.chat to get a more expert leads, or else file a bug report...

Hope you will resolve it soon.