Comment 40 for bug 522197

Also just got this issue with my Lucid 10.04 x64 install. Personally i think it is related to a dodgy realtek 8168/8169 chipset/driver that i've had alot of problems with:
http://ubuntuforums.org/showthread.php?p=9354274#post9354274
http://ubuntuforums.org/showthread.php?t=538448

Whent he problem ocurred i tried rolling back kernels, booting in safe mode, all sorts. I even tried booting into my windows 7 install on another partition, but the computer restarted halfway through boot. I shut the machine down and unplugged the power for a full minute to hard reset it and managed to get into windows. I'll attempt to boot into Ubuntu now and see if the problem had been resolved completely by the hard reset. If it has, I will update here.