Jeff Hemphill jthemphill

Summary

The thread that holds s_sharedDataMutex is calling WatchmanConnection::close()
WatchmanConnection::close() needs to run something in the EventBaseThread
The EventBaseThread is in a callback that's trying to get s_sharedDataMutex
This is a deadlock.

	#!/usr/bin/env python3
	"""
	Find the oldest TODO comment that still exists in the codebase.

	This script traverses git history commit-by-commit, finds commits that add TODOs,
	and checks whether each TODO still exists in the current version of the code.
	"""

	import asyncio
	import re

	getReactRerenderReasonStack = (fiberNode) => {
	const NoFlags = 0;
	const PerformedWork = 1;
	const Placement = 2;
	const Update = 4;
	const ChildDeletion = 16;
	const ContentReset = 32;
	const Callback = 64;
	const DidCapture = 128;
	const ForceClientRender = 256;

	import asyncio
	import json
	import pathlib
	import random
	import signal
	import typing

	"""

	vite.config.ts has these lines:

	import asyncio
	import sys
	import typing

	"""

	vite.config.ts has these lines:

	function djb2Hash(str: string): number {
	let hash = 5381

	cmake_minimum_required(VERSION 3.12)

	# A reproduction of the example given in
	# https://cmake.org/cmake/help/latest/command/target_link_libraries.html#linking-object-libraries
	project(CMakeTest)

	# Object Libraries may be used as the <target> (first) argument of target_link_libraries to specify dependencies of their sources on other libraries. For example, the code

	add_library(A SHARED a.c)
	target_compile_definitions(A PUBLIC A)

	use rayon::prelude::*;
	use std::io::BufRead;

	fn edit_distance(s1: &str, s2: &str) -> usize {
	if s1.len() > s2.len() {
	return edit_distance(s2, s1);
	}

	let mut distances: Vec<usize> = (0..=s1.len()).collect();
	for (i2, c2) in s2.chars().enumerate() {

	2021-11-02 13:41:47 837839: Setting mount namespace failed. Errno: 22
	2021-11-02 13:41:47 837906: Target pid: 425995 (inside container: 425995)
	2021-11-02 13:41:47 841508: Reading process symbols..
	2021-11-02 13:41:48 189050: Gathering stack traces..
	2021-11-02 13:41:48 233281: Printing stack traces..
	2021-11-02 13:41:48 233298: Total Traced Time: 35.196 milliseconds
	2021-11-02 13:41:48 233306: Average Traced Time Per LWP: 0.109 milliseconds
	2021-11-02 13:41:48 233310: Longest Traced LWP: LWP 4047257, 0.528 milliseconds

	Thread 323 (LWP 4122695):