Debugging EBADF in Node.js

error.log

(libuv) Failed to create kqueue (24)
(libuv) Failed to create kqueue (24)

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: write EBADF
    at errnoException (net.js:905:11)
    at WriteStream.Socket._write (net.js:646:26)
    at doWrite (_stream_writable.js:226:10)
    at writeOrBuffer (_stream_writable.js:216:5)
    at WriteStream.Writable.write (_stream_writable.js:183:11)
    at WriteStream.Socket.write (net.js:616:40)
    at Console.log (console.js:54:16)
    at /Users/watson/code/node_modules/stackman/too-many-open-files.js:5:13
    at fs.js:208:20
    at Object.oncomplete (fs.js:108:15)

fails.js

var fs = require('fs')

for (var n = 0; n < 300; n++) {
  fs.readFile(__filename, function () {
    console.log() // just having a console log makes the program throw (see error.log)
  })
}

works.js

var fs = require('fs')

for (var n = 0; n < 300; n++) {
  fs.readFile(__filename, function () {
    // noop
  })
}