Noted similar reports about this on the linux-kernel mailing list. Seems it's been around since 2.6.18.
** Changed in: linux-source-2.6.19 (Ubuntu) Status: Needs Info => Confirmed -- kernel hangs for a few seconds during boot https://launchpad.net/bugs/70917 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs