On my laptop some messages like that appeared too. I solved the problem adding the noapic nolapic options in the kernel boot. This was a big issue with dapper in my laptop (HP NX6125) in which everything would run tremendously slow if these options were not added. It looks like it is some APIC problem (some laptops reportedly have strange APIC issues) Edgy somehow fixed this problem partially, but not adding them caused the system to be less stable. Right now, my bcm43xx driver is having some issues, but generally work, even with the ohci1394 module loaded.
-- BCM43xx failing on Edgy AMD64 kernel https://launchpad.net/bugs/69026 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs