I just want to add that I get this bug with completely different hardware. I have an Acer Aspire 5021WLMi with a Broadcom BCM4318 rev 02 chipset that cannot be enabled through hardware/BIOS. I use the acer_acpi module to turn on the adapter through software and I call it in /etc/modules, but enable it using a custom pre-up script in /etc/networking. So, as I get crashes way before this point, I cannot boot 100% of the time. Dapper works perfectly, but upgrading to Edgy gave this bug, and a clean install of Edgy didn't help either.
--andrew -- CPU soft lockup during bootup https://launchpad.net/bugs/63418 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs