Debugger throws error "stdout maxBuffer exceeded"

[marcoschou]

Type: Bug

1. Open a c++ project
2. Set up your launch.json. Th debug task specifies the process ID as "processId":"${command:pickProcess}".
3. Run -> Start Debugging
4. The error "stdout maxBuffer exceeded is thrown"

Extension version: 1.12.4
VS Code version: Code 1.72.2 (d045a5eda657f4d7b676dedbfa7aab8207f8a075, 2022-10-12T22:15:18.074Z)
OS version: Windows_NT x64 10.0.19042
Modes:
Sandboxed: No
Remote OS version: Linux x64 3.10.0-1160.76.1.el7.x86_64
Remote OS version: Linux x64 3.10.0-1160.76.1.el7.x86_64

System Info

Item	Value
CPUs	12th Gen Intel(R) Core(TM) i7-1265U (12 x 2688)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off 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_renderer: enabled_on video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	undefined
Memory (System)	15.69GB (7.34GB free)
Process Argv	--crash-reporter-id 786768c0-d188-4f92-a2ad-02c742f90339
Screen Reader	no
VM	0%

Item	Value
OS	Linux x64 3.10.0-1160.76.1.el7.x86_64
CPUs	Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz (64 x 999)
Memory (System)	125.42GB (42.72GB free)
VM	0%

Item	Value
Remote	SSH: nueli6047.nurnberg.cd-adapco.com
OS	Linux x64 3.10.0-1160.76.1.el7.x86_64
CPUs	Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz (64 x 999)
Memory (System)	125.42GB (42.69GB free)
VM	0%

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[WardenGnaw]

Looks like the new API we added in 4016be1 for listing processes on window produces a lot for data.

We should move to child_process.spawn to not have a buffering issue.

vscode-cpptools/Extension/src/Debugger/nativeAttach.ts

Line 172 in 4016be1

child_process.exec(process, { cwd: workingDirectory, maxBuffer: 500 * 1024 }, (error: Error | null, stdout: string, stderr: string) => {