Qt UI becomes unresponsive on stream of errors

Version: 2.1.0~~git20120119+r1128-0r55oneiric1 (taken from trunk built by ppa's videolan daily archive)

vlc becomes unresponsive

step to reproduce:

1. open a video in vlc
2. delete video from hdd, vlc continue playing it until it get closed
3. before the end of the video put on the "loop all button"

expected: vlc gives a error and stop what happens: vlc gives an infinite loop and you have to kill it manually.