Zombie processes hogging CPU/RAM, Duplicate diagnostics

[xaviergmail]

Type: Bug

I'm putting this out here as a feeler, as I have no info on the bug

Behaviour

Over the past few days, vscode has been unusable for Python development.
Some things I am noticing are:

• Several python processes using significant CPU/RAM
• Some of these python processes show no parent process
• Duplicated diagnostics from pylance, mypy, flake8

Steps to reproduce:

Unsure about this, it seems to happen every time, but especially when doing work with CDK

1. npx cdk init app --language python
2. Set interpreter
3. Start editing

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

2025-02-18 10:41:00.571 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 10:41:00.571 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 10:41:00.571 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 10:41:00.571 [info] Native locator: Refresh started
2025-02-18 10:41:00.571 [error] Python discovery not supported in untrusted workspace
2025-02-18 10:41:00.571 [info] Native locator: Refresh finished in 5 ms
2025-02-18 10:41:00.571 [error] Python discovery not supported in untrusted workspace
2025-02-18 10:41:00.571 [error] Invalid environment [native]: {}
2025-02-18 10:41:01.642 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 10:41:01.642 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 10:41:01.642 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 10:41:01.642 [info] Native locator: Refresh started
2025-02-18 10:41:01.642 [info] Native locator: Refresh started
2025-02-18 10:41:02.028 [info] Native locator: Refresh started
2025-02-18 10:41:02.734 [info] Poetry environment manager found at: /Users/xavier/.asdf/shims/poetry
2025-02-18 10:41:03.140 [info] Starting Pylance language server.
2025-02-18 10:41:04.100 [info] Native locator: Refresh finished in 3514 ms
2025-02-18 10:41:04.101 [info] > pyenv which python
2025-02-18 10:41:04.101 [info] cwd: .
2025-02-18 10:41:04.139 [info] Starting Pylance language server.
2025-02-18 10:41:05.396 [info] Python interpreter path: ./.venv/bin/python
2025-02-18 10:41:05.920 [info] > conda info --json
2025-02-18 10:41:36.613 [error] Python discovery not supported in untrusted workspace
2025-02-18 10:41:36.613 [error] Invalid environment [native]: {}
2025-02-18 10:41:36.876 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:41:46.332 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/app.py
2025-02-18 10:41:58.255 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/app.py
2025-02-18 10:42:18.785 [error] Python discovery not supported in untrusted workspace
2025-02-18 10:42:18.785 [error] Invalid environment [native]: {}
2025-02-18 10:42:19.053 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:42:47.638 [info] Native locator: Refresh started
2025-02-18 10:42:47.657 [info] Poetry environment manager found at: /Users/xavier/.asdf/shims/poetry
2025-02-18 10:42:48.378 [info] Native locator: Refresh finished in 737 ms
2025-02-18 10:42:54.380 [info] Native locator: Refresh started
2025-02-18 10:42:54.406 [info] Poetry environment manager found at: /Users/xavier/.asdf/shims/poetry
2025-02-18 10:42:55.060 [info] Native locator: Refresh finished in 678 ms
2025-02-18 10:43:22.621 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:43:26.068 [error] Python discovery not supported in untrusted workspace
2025-02-18 10:43:26.068 [error] Invalid environment [native]: {}
2025-02-18 10:43:26.337 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:43:28.029 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/tests/unit/test_crossregion_stack.py
2025-02-18 10:43:32.750 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 10:43:32.750 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 10:43:32.750 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 10:43:32.757 [info] > pyenv which python
2025-02-18 10:43:32.757 [info] cwd: .
2025-02-18 10:43:32.785 [info] > conda info --json
2025-02-18 10:43:35.223 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 10:43:35.223 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 10:43:45.607 [info] Starting Pylance language server.
2025-02-18 10:44:02.129 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:46:24.246 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/east_stack.py
2025-02-18 10:59:24.131 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/stacks.py
2025-02-18 10:59:51.523 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/app.py
2025-02-18 11:06:51.804 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/app.py
2025-02-18 11:07:01.597 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/app.py
2025-02-18 11:07:36.939 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/lambda/handler.py
2025-02-18 11:08:38.768 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/stacks.py
2025-02-18 11:09:23.754 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/stacks.py
2025-02-18 11:10:20.889 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion/crossregion/stacks.py
2025-02-18 11:22:53.734 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 11:22:53.735 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 11:22:53.735 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 11:22:54.230 [info] > pyenv which python
2025-02-18 11:22:54.230 [info] cwd: .
2025-02-18 11:22:54.320 [info] > conda info --json
2025-02-18 11:22:56.481 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 11:22:57.011 [info] Starting Pylance language server.
2025-02-18 11:23:05.255 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 11:23:05.255 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 11:23:05.255 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 11:23:05.258 [info] > pyenv which python
2025-02-18 11:23:05.258 [info] cwd: .
2025-02-18 11:23:05.645 [info] > conda info --json
2025-02-18 11:23:08.530 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 11:23:16.271 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 11:23:16.271 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 11:23:16.271 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 11:23:16.274 [info] > pyenv which python
2025-02-18 11:23:16.274 [info] cwd: .
2025-02-18 11:23:16.658 [info] > conda info --json
2025-02-18 11:23:19.861 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 11:23:30.206 [info] Starting Pylance language server.
2025-02-18 11:24:13.391 [info] Experiment 'pythonRecommendTensorboardExt' is active
2025-02-18 11:24:13.391 [info] Experiment 'pythonTerminalEnvVarActivation' is active
2025-02-18 11:24:13.391 [info] Experiment 'pythonTestAdapter' is active
2025-02-18 11:24:13.420 [info] > pyenv which python
2025-02-18 11:24:13.420 [info] cwd: .
2025-02-18 11:24:13.431 [info] > conda info --json
2025-02-18 11:24:16.021 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 11:24:16.021 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion
2025-02-18 11:24:16.691 [info] Starting Pylance language server.
2025-02-18 11:26:50.572 [info] Discover tests for workspace name: crossregion - uri: /Volumes/projects/crossregion

mypy logs
pylint logs
python LSP logs
settings.json

Extension version: 2025.0.0
VS Code version: Code 1.97.2 (Universal) (e54c774e0add60467559eb0d1e229c6452cf8447, 2025-02-12T23:20:35.343Z)
OS version: Darwin arm64 23.6.0
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.13.1.final.0
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): System
• Value of the python.languageServer setting: Pylance

User Settings

languageServer: "Pylance"

terminal
• activateEnvironment: false

Installed Extensions

Extension Name	Extension Id	Version
black-formatter	ms-	2024.6.0
bruno	bru	3.1.0
code-background	Kat	3.1.0
copilot	Git	1.272.1381
copilot-chat	Git	0.24.2025021302
copy-as-snippet	Thi	2.0.3
cpptools	ms-	1.23.6
dainty-vscode	ale	1.1.22
darkmocha	jxs	0.0.1
datawrangler	ms-	1.18.2
debugpy	ms-	2025.1.2025021701
dotenv	mik	1.0.1
EditorConfig	Edi	0.17.0
even-better-toml	tam	0.21.2
explorer	vit	1.14.3
find-it-faster	Tom	0.0.39
flake8	ms-	2025.1.10481012
github-local-actions	San	1.2.2
gitlens	eam	16.3.0
godot-tools	gee	2.3.0
hexeditor	ms-	1.11.1
isort	ms-	2023.10.1
js-debug	ms-	1.97.1
js-debug-companion	ms-	1.1.3
jupyter	ms-	2025.1.0
jupyter-keymap	ms-	1.1.2
jupyter-renderers	ms-	1.1.0
live-server	ms-	0.4.15
lua	sum	3.13.6
markdown-all-in-one	yzh	3.6.2
markdown-mermaid	bie	1.27.0
markdown-preview-github-styles	bie	2.1.0
material-icon-theme	PKi	5.19.0
mypy-type-checker	ms-	2025.1.10451009
owlet	its	0.1.22
pdf	tom	1.2.2
polaris-for-vscode	Sho	0.9.8
postcss	css	1.0.9
prettier-vscode	esb	11.0.0
prisma	Pri	6.3.1
pylint	ms-	2024.2.0
python	ms-	2025.0.0
rainbow-csv	mec	3.17.0
rainglow	day	1.5.2
remote-containers	ms-	0.397.0
remote-explorer	ms-	0.4.3
remote-ssh	ms-	0.117.1
remote-ssh-edit	ms-	0.87.0
remote-wsl	ms-	0.88.5
serverless-ide-vscode	Thr	0.6.5
shellcheck	tim	0.37.7
sqlite-viewer	qwt	0.10.2
terraform	has	2.34.3
test-adapter-converter	ms-	0.2.1
Theme-Base16-Eighties	bsi	0.0.1
Theme-TomorrowNightEighties	ger	0.0.5
tomorrow-night-eighties-contrast	aSt	1.0.0
vim	vsc	1.29.0
volar	Vue	2.2.2
vs-code-prettier-eslint	rve	6.0.0
vscode-apollo	apo	2.5.4
vscode-commons	red	0.0.6
vscode-cython	ktn	1.0.3
vscode-docker	ms-	1.29.4
vscode-eslint	dba	3.0.10
vscode-fish	bma	1.0.38
vscode-github-actions	git	0.27.1
vscode-graphql	Gra	0.13.0
vscode-graphql-syntax	Gra	1.3.8
vscode-jest	Ort	6.4.0
vscode-js-profile-flame	ms-	1.0.9
vscode-js-profile-table	ms-	1.0.10
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-slideshow	ms-	0.1.6
vscode-liquid-snippets	kil	2.0.3
vscode-markdownlint	Dav	0.59.0
vscode-open-buffers	wil	0.0.1
vscode-plpgsql-lsp	uni	2.11.3
vscode-pull-request-github	Git	0.104.1
vscode-pylance	ms-	2025.2.100
vscode-python-envs	ms-	0.3.10441011
vscode-sqlfluff	dor	3.3.1
vscode-sqlite	ale	0.14.1
vscode-tailwindcss	bra	0.14.6
vscode-task	tas	0.3.2
vscode-theme-onedark	aka	2.3.0
vscode-thunder-client	ran	2.34.1
vscode-wasm	dts	1.4.1
vsliveshare	ms-	1.0.5948
vue-pug-snippets	kaa	0.5.0
vue-vscode-snippets	sdr	3.2.0

System Info

Item	Value
CPUs	Apple M2 Pro (12 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	3, 6, 8
Memory (System)	16.00GB (0.14GB free)
Process Argv	--crash-reporter-id 09122cee-7ea8-43b3-8148-ed3a1f25d001
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805:30301674
binariesv615:30325510
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
a9j8j154:30646983
962ge761:30959799
h48ei257:31000450
pythontbext0:30879054
cppperfnew:31000557
dwnewjupyter:31046869
nativerepl1:31139838
pythonrstrctxt:31112756
nativeloc1:31192215
iacca1:31171482
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530
6074i472:31201624
dwoutputscf:31238124
hdaa2157:31222309
copilot_t_ci:31222730
jda6j935:31233686
copilothoveroff:31240707
g941i948:31240199

[xaviergmail]

I also appear to have multiple black formatters when running the format > select formatter command?

[karthiknadig]

@xaviergmail This is a duplicate of #24783

I am working on a fix for this. It is caused by the combination of using python environments extension and tools extensions. The workaround is to disable the environments extension.