[GRASS-user] "double free or corruption" when calling e.g. g.version, g.list, g.region

[Maximilian Stahlberg]

Hello,

I'm using GRASS 7.8.6 on openSUSE Leap 15.2 and experience the
following crashes:

> Welcome to GRASS GIS 7.8.6
> GRASS GIS homepage:                      https://grass.osgeo.org
> This version running through:            Z Shell (/bin/zsh)
>   [...]
> GRASS 7.8.6 : ~ > g.version                                                              
> GRASS 7.8.6 (2021)
> *** Error in `g.version': double free or corruption (out): 0x000055866fc655b0 ***
> [1]    9995 abort (core dumped)  g.version
> GRASS 7.8.6 : ~ > g.list
> Lists available GRASS data base files of the user-specified data type optionally using the search pattern.
>   [...]
> *** Error in `g.list': double free or corruption (out): 0x000055a24a9f75b0 ***
> [1]    10000 abort (core dumped)  g.list

Some other tools like g.gisenv work and GRASS used to work fully in the
past (using, potentially, older versions of GRASS and SUSE).

Even though these crashes occur at the end of execution (after output
was produced), they are problematic as they stop e.g. the GUI from
fully working, i.e. grass --gui brings up the launcher but crashes when
I press "Start GRASS session" with the following output (note that
there is additionally an assertion failure at the end):

> Launching <wxpython> GUI in the background, please wait...
> GRASS 7.8.6 : ~ > /usr/lib64/python3.6/site-packages/wx/py/buffer.py:6: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
>   import imp
> *** Error in `g.version': double free or corruption (out): 0x00005588157c15b0 ***
> Unable to get GRASS version
> *** Error in `g.version': double free or corruption (out): 0x000055ddbe4825b0 ***
> Traceback (most recent call last):
>   File "/usr/lib64/grass78/scripts/g.extension", line 2592, in <module>
>     version = grass_version["version"].split(".")
> KeyError: 'version'
> *** Error in `g.list': double free or corruption (out): 0x000056167e0485b0 ***
> Traceback (most recent call last):
>   File "/usr/lib64/grass78/gui/wxpython/wxgui.py", line 106, in OnInit
>     workspace=self.workspaceFile)
>   File "/usr/lib64/grass78/gui/wxpython/lmgr/frame.py", line 143, in __init__
>     self.notebook = self._createNoteBook()
>   File "/usr/lib64/grass78/gui/wxpython/lmgr/frame.py", line 330, in _createNoteBook
>     gcstyle=GC_PROMPT)
>   File "/usr/lib64/grass78/gui/wxpython/gui_core/goutput.py", line 118, in __init__
>     self.cmdPrompt = GPromptSTC(parent=self, menuModel=self._menuModel)
>   File "/usr/lib64/grass78/gui/wxpython/gui_core/prompt.py", line 138, in __init__
>     GPrompt.__init__(self, parent=parent, menuModel=menuModel)
>   File "/usr/lib64/grass78/gui/wxpython/gui_core/prompt.py", line 56, in __init__
>     self.mapList = self._getListOfMaps()
>   File "/usr/lib64/grass78/gui/wxpython/gui_core/prompt.py", line 100, in _getListOfMaps
>     result['raster'] = grass.list_strings('raster')
>   File "/usr/lib64/grass78/etc/python/grass/script/core.py", line 1288, in list_strings
>     mapset=mapset).splitlines():
>   File "/usr/lib64/grass78/etc/python/grass/script/core.py", line 503, in read_command
>     return handle_errors(returncode, stdout, args, kwargs)
>   File "/usr/lib64/grass78/etc/python/grass/script/core.py", line 343, in handle_errors
>     returncode=returncode)
> grass.exceptions.CalledModuleError: Module run None g.list --q -m type=raster ended with error
> Process ended with non-zero return code -6. See errors in the (error) output.
> OnInit returned false, exiting...
> Error in atexit._run_exitfuncs:
> wx._core.wxAssertionError: C++ assertion "GetEventHandler() == this" failed at /home/abuild/rpmbuild/BUILD/wxPython-4.0.1/ext/wxWidgets/src/common/wincmn.cpp(478) in ~wxWindowBase(): any pushed event handlers must have been removed
> *** Error in `python3': double free or corruption (!prev): 0x00005647498368e0 ***

Python versions used are 3.9.4 (local) for --text and 3.6.12 (system
wide, has wx) for --gui.

Any idea what could cause this?

Kind regards,
Maximilian
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