Comment 74 for bug 272530

somehow something changed since the last kernel updates on jaunty. I now have kernel 2.6.28-12-generic (from jaunty-proposed) and it still reboots if I don't use the "mem=4096M" argument, but the reboot happens a little bit later than before. I could narrow it down to the command "/sbin/udevadm trigger" in /etc/init.d/udev. The reboot occurs while this command is executed, just after the output of the string "loading hardware drivers". I hope this helps a little...