RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded

[bpasero]

Seeing this when trying to commit some changes:

RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded
    at Socket.onChildStdout (node:child_process:481:14)
    at Socket.emit (node:events:518:28)
    at addChunk (node:internal/streams/readable:561:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
    at Readable.push (node:internal/streams/readable:392:5)
    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23) {
  code: 'ERR_CHILD_PROCESS_STDIO_MAXBUFFER',
  cmd: "git show ':src/vs/workbench/browser/layout.ts'"
}

[lszomoru]

@bpasero, could you please share repro steps? Thanks!

[bpasero]

@lszomoru it was a very large file like layout.ts, I would try with very large files (maybe checker.ts?)

[lszomoru]

I believe that this error is being thrown from hygiene.js and not the git extension:

vscode/build/hygiene.js

Lines 239 to 240 in d212bad

	cp.exec(
	process.platform === 'win32' ? `git show :${relativePath}` : `git show ':${relativePath}'`,

I see that the maxBuffer option has been changed about a year ago by @roblourens but it is not clear to me why.
I wonder if you hit an edge case in which stat.size was incorrect and that is why the git show command failed.