I've just installed the Mavericks 10.9.1 update and my audio is not working. The volume bar is obscurely grey, and the mac is becoming slightly slow. 

I checked the console to see anything related to this issue and I found this message every ten seconds.

```
Dec 22 08:07:33 hko com.apple.launchd[1] (com.apple.audio.coreaudiod[989]): Job failed to exec(3) for weird reason: 2
Dec 22 08:07:33 hko com.apple.launchd[1] (com.apple.audio.coreaudiod): Job should be able to exec(3) now.
Dec 22 08:07:33 hko com.apple.launchd[1] (com.apple.audio.coreaudiod): Throttling respawn: Will start in 10 seconds

```

I've searched on google for this issue and no luck.

I'm not sure if this has got to do with my mac's permissions but I'm not sure what to do next.