I have a home server running the latest openSUSE. Everything was working like a charm until I started working with wireless - system would stay up for weeks, until manually restarted, zero problems whatsoever.

And then I installed hostapd and madwifi. To bring the wifi online, I type this into terminal:

wlanconfig ath0 destroy
wlanconfig ath0 create wlandev wifi0 wlanmode ap
iwconfig ath0 mode master
iwconfig ath0 essid avtnetwork
brctl addif br0 ath0
ifconfig ath0 up
hostapd /etc/hostapd.conf

And it all works fine, for a few days. After that, kernel freeze. System refuses to respond to anything at all. The only thing I can do is reset it, after which it seems to think everything's normal.