napari: Painting error on linux

🐛 Bug

When drawing I sometimes got this error (which ends program with SIGSEGV):

WARNING: Error drawing visual <Image at 0x7f589a273be0>
13:02:05 WARNING Error drawing visual <Image at 0x7f589a273be0>
13:02:05 ERROR Unhandled exception:
Traceback (most recent call last):
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/app/backends/_qt.py", line 825, in paintGL
    self._vispy_canvas.events.draw(region=None)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/util/event.py", line 455, in __call__
    self._invoke_callback(cb, event)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/util/event.py", line 473, in _invoke_callback
    _handle_exception(self.ignore_callback_errors,
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/util/event.py", line 471, in _invoke_callback
    cb(event)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/scene/canvas.py", line 217, in on_draw
    self._draw_scene()
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/scene/canvas.py", line 266, in _draw_scene
    self.draw_visual(self.scene)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/scene/canvas.py", line 304, in draw_visual
    node.draw()
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/scene/visuals.py", line 99, in draw
    self._visual_superclass.draw(self)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/visuals/visual.py", line 442, in draw
    self._program.draw(self._vshare.draw_mode,
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/visuals/shaders/program.py", line 101, in draw
    Program.draw(self, *args, **kwargs)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/program.py", line 533, in draw
    canvas.context.flush_commands()
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/context.py", line 176, in flush_commands
    self.glir.flush(self.shared.parser)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/glir.py", line 572, in flush
    self._shared.flush(parser)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/glir.py", line 494, in flush
    parser.parse(self._filter(self.clear(), parser))
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/glir.py", line 819, in parse
    self._parse(command)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/glir.py", line 787, in _parse
    ob.set_data(*args)
  File "/home/czaki/.pyenv/versions/napari/lib/python3.8/site-packages/vispy/gloo/glir.py", line 929, in set_data
    raise RuntimeError("Shader compilation error in %s:\n%s" %
RuntimeError: Shader compilation error in GL_VERTEX_SHADER:

To Reproduce

Steps to reproduce the behavior:

1. load image
2. add label layer
3. try paint
4. repeat

Expected behavior

Not end with

Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)

Environment

napari: 0.4.1rc1 Platform: Linux-5.4.0-53-generic-x86_64-with-glibc2.2.5 Python: 3.8.3 (default, Jun 26 2020, 19:57:39) [GCC 9.3.0] Qt: 5.15.1 PyQt5: 5.15.1 NumPy: 1.19.0 SciPy: 1.5.1 Dask: 2.1.0 VisPy: 0.6.5

GL version: 4.6.0 NVIDIA 390.138 MAX_TEXTURE_SIZE: 32768

Plugins:

• napari_plugin_engine: 0.1.8

• ome_zarr: 0.0.14

• svg: 0.1.4

• Please copy and paste the information at napari info option in help menubar here:

• Any other relevant information:

Additional context

Any suggestion for debug?