Hi, I've seen that this bug was the cause for keepalived to be removed from Testing. However, this bug was opened against keepalived in Stable. I've been using this version in production for nearly a year, and never experienced the same thing, everything just runs smoothly for me. So without giving any clue on how to reproduce the issue, I don't think this bug is relevant. I'm therefore reducing severity to "important".
Cheers, Thomas Goirand (zigo)