Connection to terminal's pty host process is becoming unresponsive

Issue Type: Bug

After updating to latest VSCode stable (1.59) I started encountering an error when running tasks (The connection to the terminal’s pty host process is unresponsive, the terminals may stop working.). This used to work fine on 1.58.2 and I confirmed that it is broken on latest insider build too (1.60.0)

I have a bunch of VSCode tasks for ‘orchestrating’ local docker setup, so I can run some commands to run builds and generate TypeScript clients directly from the UI. When I run tasks without any “dependsOn” tasks they run fine. If one task depends on single other task, it also runs fine. I have problems when single task have multiple entries in “dependsOn” section - it usually works fine for the first time after I open VSCode but then the issue happens and I have to fully restart VSCode to make it work again.

VS Code version: Code - Insiders 1.60.0-insider (49af1cbe00271ac2ea36cfc5f7352fe31a7b0094, 2021-08-06T06:41:50.275Z) OS version: Windows_NT x64 10.0.19042 Restricted Mode: No

System Info

Item	Value
CPUs	AMD Ryzen 9 3900X 12-Core Processor (24 x 3800)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.93GB (18.13GB free)
Process Argv	–crash-reporter-id 99c6e3ee-c17a-4f3a-a118-c9cbac23e0db
Screen Reader	no
VM	0%

Extensions (1)

Extension	Author (truncated)	Version
csharp	ms-	1.23.14

A/B Experiments

vsliv695:30137379
vsins829:30139715
vsliv368:30146709
vsreu685:30147344
python383cf:30185419
pythonvspyt602:30291494
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt639:30291487
pythontb:30258533
pythonvspyt551:30291412
pythonptprofiler:30281269
vshan820:30294714
pythondataviewer:30285072
pythonvsuse255:30319630
vscod805:30301674
pythonvspyt200:30323110
vsccppwt:30312692
pythonvssor306:30340298
bridge0708:30335490
pygetstartedt2:30348854
dockerwalkthru:30348713

Tasks hierarchy

{
      "label": "[Debug] Create base image for Api container",
      "command": "powershell",
      "args": [
        "docker",
        "build",
        "--rm",
        "-f",
        "${workspaceFolder}/BaseImage.Debug.Dockerfile",
        "-t",
        "baseimage-api-debug:latest",
        "."
      ]
    },
    {
      "label": "[Debug] Create image for Api.Dockerfile",
      "command": "powershell",
      "args": [
        "docker",
        "build",
        "--rm",
        "-f",
        "${workspaceFolder}/Api.Dockerfile",
        "-t",
        "backend-core-debug:latest",
        "."
      ],
      "problemMatcher": {
        "base": "$msCompile",
        "fileLocation": [
          "relative",
          "${workspaceRoot}"
        ]
      },
      "dependsOn": [
        "[Debug] Create base image for Api container"
      ]
    },
    {
      "label": "[Debug] Create image for Hangfire.Server.Dockerfile",
      "command": "powershell",
      "args": [
        "docker",
        "build",
        "--rm",
        "-f",
        "${workspaceFolder}/Hangfire.Server.Dockerfile",
        "-t",
        "hangfire-server-debug:latest",
        "."
      ],
      "problemMatcher": {
        "base": "$msCompile",
        "fileLocation": [
          "relative",
          "${workspaceRoot}"
        ]
      },
      "dependsOn": [
        "[Debug] Create base image for Api container"
      ]
    },
    {
      "label": "[Debug] Create service for docker-compose.dev.yml",
      "command": "powershell",
      "args": [
        "docker-compose",
        "-f",
        "${workspaceFolder}/docker-compose.dev.yml",
        "up",
        "-d",
        "--build",
        "--force-recreate",
        "--renew-anon-volumes"
      ],
      "problemMatcher": "$msCompile",
      "dependsOn": [
        "[Debug] Create image for Api.Dockerfile", 
        "[Debug] Create image for Hangfire.Server.Dockerfile"
      ]
    },
    {
      "label": "[TS] generate libraries",
      "type": "shell",
      "command": "\"${workspaceRoot}/../_scripts/wait-for-it-http.ps1\" && nswag.cmd run || docker logs backend-core_api_1",
      "problemMatcher": "$msCompile",
      "options": {
        "cwd": "${workspaceRoot}/../tt-ts-core"
      },
      "dependsOn": [
        "[Debug] Create service for docker-compose.dev.yml"
      ]
    }

[xianghongai]

"terminal.integrated.windowsEnableConpty": false

restart vs code …

[lorand-horvath]

This is unbelievably frustrating… After a clean install of latest Insiders the warning pops up without even starting the terminal in the first place! I have no extensions installed, nothing. It’s clean as possible. What is going on? Anyone else struggling with this?