keypress blocking event-loop (node v0.12.0)

[xat]

On node v0.12.0 the event-loop seems to get blocked after hitting a key a few times.

See this simple code:

var keypress = require('keypress');
var c = 0;

setInterval(function() {
  console.log('tick', c++);
}, 1000);

keypress(process.stdin);

process.stdin.on('keypress', function (ch, key) {
  console.log('key pressed');
  if (key && key.ctrl && key.name == 'c') {
    process.exit();
  }
});

process.stdin.setRawMode(true);
process.stdin.resume();

There is a ticker supposed to output tick <counter> every second. On node v0.10.x the ticker outputs its message in the expected interval, no matter how often you press a key.
On node v0.12.0 something blocks the ticker from outputting after hitting, for example, the space-key a few times. The Number of keypresses which are required to make start it block seems to be random. Sometimes it blocks after the first keypress, some other times it takes up to 5 keypresses.

I'm running node on OSX Yosmite.

[xat]

The exact node version when this problem starts to occur is v0.11.12

http://blog.nodejs.org/2014/03/12/node-v0-11-12-unstable/

[brycebaril]

Unable to reproduce in 0.12 or io.js on Ubuntu

[GabiGrin]

Happening to me too
Node v0.12.4, OS X 10.9.5