VSCode freezes with integrated terminal

[DemianD]

Issue Type: Bug

Since a week of two I'm facing an issue with the Integrated Terminal in VSCode.

When working with the Integrated Terminal, and the executed command is outputting a lot of data, VSCode freezes.

This way I forced a freeze (maybe some steps can be omitted):

1. Create a SSH session to a VM from the Integrated Terminal.
2. Create a dummy C-file, and compile with gcc dummy.c -o dummy.o -static
3. cat dummy.o
4. VSCode should freeze completely.
5. When clicking on the Editor, wait a few minutes. After a few minutes you may be able to type again.
6. Click again on the Integrated Terminal, it freezes again.

https://youtu.be/PK39vWyUHzU

VS Code version: Code 1.24.1 (24f6262, 2018-06-13T17:41:50.128Z)
OS version: Darwin x64 17.3.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz (4 x 3100)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled rasterization: enabled video_decode: enabled video_encode: enabled vpx_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 2, 2
Memory (System)	16.00GB (2.64GB free)
Process Argv	/Applications/Visual Studio Code.app/Contents/MacOS/Electron
Screen Reader	no
VM	0%

Extensions (34)

Extension	Author (truncated)	Version
EditorConfig	Edi	0.12.4
vscode-jest	Ort	2.8.0
ReactSnippetsStandard	Tim	1.1.0
jsx	Twe	0.0.1
lorem-ipsum	Tyr	1.2.0
snapshot-tools	asv	0.0.7
code-gnu-global	aus	0.2.2
better-toml	bun	0.3.2
npm-intellisense	chr	1.3.0
path-intellisense	chr	1.4.2
sql-formatter	cym	1.0.2
vscode-eslint	dba	1.4.12
xml	Dot	2.3.1
vscode-style-formatter	dwe	1.0.0
gitlens	eam	8.4.0
prettier-vscode	esb	1.5.0
code-runner	for	0.9.3
sublime-babel-vscode	jos	0.2.10
8051	jun	0.1.0
vscode-gutter-preview	kis	0.12.2
VS-code-vagrantfile	mar	0.0.7
rainbow-csv	mec	0.4.1
ecdc	mit	0.12.0
vscode-scss	mrm	0.6.2
python	ms-	2018.5.0
cpptools	ms-	0.17.4
Go	ms-	0.6.83
laravel-blade	one	1.18.0
vscode-versionlens	pfl	0.21.1
vscode-icons	rob	7.23.0
react-redux-es6-snippets	tim	2.1.0
vscode-import-cost	wix	2.7.1
clang-format	xav	1.6.2
markdown-pdf	yza	1.2.0

(1 theme extensions excluded)

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• freezes too much (#48954)

[Tyriar]

Can you share your settings.json file?

[DemianD]

Hi @Tyriar

settings.json:

{
  "window.zoomLevel": 0,
  "editor.mouseWheelZoom": false,
  "vsicons.projectDetection.disableDetect": true,
  "workbench.iconTheme": "vscode-icons",
  "prettier.eslintIntegration": true,
  "C_Cpp.errorSquiggles": "Enabled",
  "C_Cpp.intelliSenseEngineFallback": "Disabled",
  "[javascript]": {
    "editor.tabSize": 2
  },
  "[json]": {
    "editor.tabSize": 2
  },
  "[javascriptreact]": {
    "editor.tabSize": 2
  },
  "vsicons.dontShowNewVersionMessage": true,
  "extensions.ignoreRecommendations": true,
  "blade.format.enable": true,
  "go.formatTool": "gofmt",
  "gitlens.keymap": "none",
  "gitlens.advanced.messages": {
    "suppressCommitHasNoPreviousCommitWarning": false,
    "suppressCommitNotFoundWarning": false,
    "suppressFileNotUnderSourceControlWarning": false,
    "suppressGitVersionWarning": false,
    "suppressLineUncommittedWarning": false,
    "suppressNoRepositoryWarning": false,
    "suppressResultsExplorerNotice": false,
    "suppressShowKeyBindingsNotice": true
  },
  "liveshare.features": "experimental",
  "files.associations": {
    "*.toml": "json"
  },
  "gitlens.historyExplorer.enabled": true,
  //"search.useIgnoreFiles": false,
  "editor.minimap.enabled": false,
  "markdown-pdf.printBackground": false,
  "markdown-pdf.displayHeaderFooter": false
}

If you need more information, let me know

[Tyriar]

Looks like this is a duplicate of xtermjs/xterm.js#1515