I am running the latest version of Bitcoin-QT on openSUSE which is also my P2Pool server. Please have a look at this thread I started on BitcoinTalk as it shows the problems that Bitcoin-QT is having.
bitcoin-qt version 4.8.5 bictoin 0.8.6.0-g03a7d67-beta
https://bitcointalk.org/index.php?topic=516059.0
Thanks