Closed
Description
Issue Type: Bug
Behaviour
Expected vs. Actual
I ran a simple python script that alternates between print() and sleep() forever, then I tried to attach the debugger to it. I expected to gain control of the process with the debugger. But actually, the process segfaulted.
Steps to reproduce:
I'm using Python 3.9 in a virtualenv on Arch Linux.
I disable all of my extensions from the Extensions tab using "Disable all installed extensions", and then re-enable only the Python extension to get the debugger.
I run the following Python script:
test.py:
import itertools
from time import sleep
def main():
for i in itertools.count():
print( f'Hello! ({i})' )
sleep( 2 )
if __name__ == '__main__':
main()And then I try to attach to it using the following debugger setup:
launch.json:
{
"version": "0.2.0",
"configurations": [
{
"name":"Python: Attach using Process Id",
"type":"python",
"request":"attach",
"processId":"${command:pickProcess}",
"logToFile": true,
"console": "internalConsole",
"env": {
"PTVSD_DEBUG": "1",
}
},
]
}Here's what the ouput of the script looks like:
$ python -u test.py
Hello! (0)
Hello! (1)
Hello! (2)
Hello! (3)
Hello! (4) // once this is is printed, I attempt to attach
The threading module was not imported by user code in the main thread. The debugger will attempt to work around https://bugs.python.org/issue37416.
[1] 469716 segmentation fault (core dumped) python -u test.py
Diagnostic data
- Python version (& distribution if applicable, e.g. Anaconda): 3.9.12
- Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): VirtualEnvWrapper
- Value of the
python.languageServersetting: Pylance
User Settings
defaultLS: {"defaultLSType":"Pylance"}
downloadLanguageServer: true
envFile: "<placeholder>"
venvPath: "<placeholder>"
venvFolders: "<placeholder>"
condaPath: "<placeholder>"
pipenvPath: "<placeholder>"
poetryPath: "<placeholder>"
languageServer: "Pylance"
linting
• enabled: false
• cwd: "<placeholder>"
• Flake8Args: "<placeholder>"
• flake8Enabled: false
• flake8Path: "<placeholder>"
• lintOnSave: true
• banditArgs: "<placeholder>"
• banditEnabled: false
• banditPath: "<placeholder>"
• mypyArgs: "<placeholder>"
• mypyEnabled: true
• mypyPath: "<placeholder>"
• pycodestyleArgs: "<placeholder>"
• pycodestyleEnabled: false
• pycodestylePath: "<placeholder>"
• prospectorArgs: "<placeholder>"
• prospectorEnabled: false
• prospectorPath: "<placeholder>"
• pydocstyleArgs: "<placeholder>"
• pydocstyleEnabled: false
• pydocstylePath: "<placeholder>"
• pylamaArgs: "<placeholder>"
• pylamaEnabled: false
• pylamaPath: "<placeholder>"
• pylintArgs: "<placeholder>"
• pylintPath: "<placeholder>"
sortImports
• args: "<placeholder>"
• path: "<placeholder>"
formatting
• autopep8Args: "<placeholder>"
• autopep8Path: "<placeholder>"
• provider: "none"
• blackArgs: "<placeholder>"
• blackPath: "<placeholder>"
• yapfArgs: "<placeholder>"
• yapfPath: "<placeholder>"
testing
• cwd: "<placeholder>"
• debugPort: 3000
• nosetestArgs: "<placeholder>"
• nosetestsEnabled: undefined
• nosetestPath: "<placeholder>"
• promptToConfigure: true
• pytestArgs: "<placeholder>"
• pytestEnabled: false
• pytestPath: "<placeholder>"
• unittestArgs: "<placeholder>"
• unittestEnabled: false
• autoTestDiscoverOnSaveEnabled: true
terminal
• activateEnvironment: true
• executeInFileDir: "<placeholder>"
• launchArgs: "<placeholder>"
experiments
• enabled: true
• optInto: []
• optOutFrom: []
insidersChannel: "off"
tensorBoard
• logDirectory: "<placeholder>"
Extension version: 2022.2.1924087327
VS Code version: Code - OSS 1.65.2 (c722ca6c7eed3d7987c0d5c3df5c45f6b15e77d1, 2022-03-10T19:23:12.185Z)
OS version: Linux x64 5.16.16-arch1-1
Restricted Mode: No
System Info
| Item | Value |
|---|---|
| CPUs | Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz (4 x 3389) |
| GPU Status | 2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: disabled_off opengl: enabled_on rasterization: disabled_software skia_renderer: enabled_on video_decode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled |
| Load (avg) | 1, 2, 2 |
| Memory (System) | 15.53GB (1.03GB free) |
| Process Argv | --unity-launch |
| Screen Reader | no |
| VM | 0% |
| DESKTOP_SESSION | undefined |
| XDG_CURRENT_DESKTOP | undefined |
| XDG_SESSION_DESKTOP | undefined |
| XDG_SESSION_TYPE | undefined |