Process picker dropdown does not show on WSL environment.

[lucidfrontier45]

Environment data

Version: 1.61.2 (user setup)
Commit: 6cba118ac49a1b88332f312a8f67186f7f3c1643
Date: 2021-10-19T14:57:20.575Z
Electron: 13.5.1
Chrome: 91.0.4472.164
Node.js: 14.16.0
V8: 9.1.269.39-electron.0
OS: Windows_NT x64 10.0.19043
Python_ext: v2021.10.1365161279

Expected behaviour

Dropdown shows up as below (Windows native environment)

Actual behaviour

Dropdown does not show up.

Steps to reproduce:

1 Open a WSL project with Remote-WSL extention.
2 Create a debug configuration in the launch.json with default Python: Attach using Process Id template.

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Attach using Process Id",
            "type": "python",
            "request": "attach",
            "processId": "${command:pickProcess}"
        },
    ]
}

3 In Run and Debug side pane select the above debug task.

---

possibly related #14678

[karthiknadig]

@lucidfrontier45 Can you see if this command works for you in WSL?

ps axww -o pid=,comm=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,args=

This is what we use to get the process information, and if the command fails then the picker won't show up. Also, which OS do you have under WSL?

[lucidfrontier45]

@karthiknadig

I use Ubuntu 20.04 on WSL2.
That command works. I suspect it is a UI issue.

[mdryden]

I can replicate this same behavior on Windows 10 + WSL2 + Ubuntu 20.04 as well. The picker dialog never opens. When I run that command I get the following output (lightly sanitized):

    1 init                                               /init
   12 init                                               /init
   13 init                                               /init
   14 bash                                               -bash
 4367 init                                               /init
 4368 init                                               /init
 4369 sh                                                 sh -c "$VSCODE_WSL_EXT_LOCATION/scripts/wslServer.sh" ccbaa2d27e38e5afa3e5c21c1c7bef4657064247 stable .vscode-server 0  
 4370 sh                                                 sh /mnt/c/Users/(removed)/.vscode/extensions/ms-vscode-remote.remote-wsl-0.58.5/scripts/wslServer.sh ccbaa2d27e38e5afa3e5c21c1c7bef4657064247 stable .vscode-server 0
 4376 sh                                                 sh /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/server.sh  --port=0 --use-host-proxy --without-browser-env-var --disable-websocket-compression --print-ip-address --enable-remote-auto-shutdown
 4378 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/out/vs/server/main.js  --port=0 --use-host-proxy --without-browser-env-var --disable-websocket-compression --print-ip-address --enable-remote-auto-shutdown
 4389 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/out/bootstrap-fork --type=ptyHost
 4655 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/out/bootstrap-fork --type=watcherServiceChokidar
 4682 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/out/bootstrap-fork --type=extensionHost --uriTransformerPath=/home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/out/vs/server/uriTransformer.js --useHostProxy=
 4727 bash                                               /usr/bin/bash
 5087 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/extensions/ms-python.vscode-pylance-2021.11.2/dist/server.bundle.js --cancellationReceive=file:4bf2e10f610128c8cc0fa603ba2a69c3c2f06e8113 --node-ipc --clientProcessId=4682
 5624 bash                                               /usr/bin/bash
 7417 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/extensions/ms-azuretools.vscode-docker-1.18.0/dist/dockerfile-language-server-nodejs/lib/server.js --node-ipc --node-ipc --clientProcessId=4682
 7424 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/extensions/ms-azuretools.vscode-docker-1.18.0/dist/compose-language-service/lib/server.js --node-ipc --node-ipc --clientProcessId=4682
 7459 node                                               npm
 7470 sh                                                 sh -c uvicorn api.app.main:app --reload --port 8000 --env-file ./api/.env
 7471 uvicorn                                            /home/mike/src/self/110yards/.env/bin/python /home/mike/src/self/110yards/.env/bin/uvicorn api.app.main:app --reload --port 8000 --env-file ./api/.env
 7472 python                                             /home/mike/src/self/110yards/.env/bin/python -c from multiprocessing.resource_tracker import main;main(4)
 7473 python                                             /home/mike/src/self/110yards/.env/bin/python -c from multiprocessing.spawn import spawn_main; spawn_main(tracker_fd=5, pipe_handle=7) --multiprocessing-fork
 7511 node                                               /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/node /home/mike/.vscode-server/bin/ccbaa2d27e38e5afa3e5c21c1c7bef4657064247/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=4682
 7680 ps                                                 ps axww -o pid=,comm=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,args=
16294 init                                               /init
16295 init                                               /init
16296 bash                                               -bash
23915 init                                               /init
23916 init                                               /init
23917 docker-desktop-                                    /mnt/wsl/docker-desktop/docker-desktop-proxy --distro-name Ubuntu-20.04 --docker-desktop-root /mnt/wsl/docker-desktop
23924 init                                               /init
23925 docker                                             docker serve --address unix:///home/mike/.docker/run/docker-cli-api.sock

[pounde]

Having the same issue here.
Version: 1.63.2 (user setup)
Commit: 899d46d82c4c95423fb7e10e68eba52050e30ba3
Date: 2021-12-15T09:53:24.645Z
Electron: 13.5.2
Chromium: 91.0.4472.164
Node.js: 14.16.0
V8: 9.1.269.39-electron.0
OS: Windows_NT ia32 10.0.22533

[karthiknadig]

I am able to reproduce this in WSL.

[Chida82]

Same problem.

[DannyBruno]

Hoping issue is resolved soon! Current workaround I have been using is passing processId directly into the launch.json.

Example:

[karthiknadig]

This seems to be caused by screen size error in ps.

VS Code issue related to this: microsoft/vscode#75932
PR ensuring the error is reported: #20741

This issue is duplicate of: #16921