I have similar experience. Installed Feisty beta. Upgraded. After that I get the same messages as Darren. Except for the last bit. I do not get "Bug: Soft lockup detected on CPU#0". I get a login prompt an can log onto the console. I think I might be able to provide you with logs. (I will probably be able to get them by booting up the XP partition).
I have similar experience. Installed Feisty beta. Upgraded. After that I get the same messages as Darren. Except for the last bit. I do not get "Bug: Soft lockup detected on CPU#0". I get a login prompt an can log onto the console. I think I might be able to provide you with logs. (I will probably be able to get them by booting up the XP partition).
What information do you need?
Regards