Crash under apache bench load

Connector is crashing randomly after some number of requests. Test script:

http://gist.github.com/299189

Then, do `ab -n 100 http://<node address:port>/`

Error message:
    [object Object].emitSuccess (node.js:283:15)
    Connection.onReceive (/mnt/hgfs/node/tyrant/tyrant.js:331:37)
    node.js:1027:9
    node.js:1031:1

Node version is 0.1.26, `tyrant.js` is on HEAD
