I can confirm that this is an upstream bug in the Linux kernel and still affects all kernels up to and including 2.6.38.*. A fix has now been merged into 2.6.39 but it's a very trivial single letter change.
The git commit is 39b68976ac653cfdc7f872a293e8b7928de2dcc6 in Linus's mainline tree and H. Peter Anvin describes it as: # When we use BIOS function e801 to probe memory, we should use ax/bx # (or cx/dx) as a pair, not mix and match. This was a typo during the # translation from assembly code, and breaks at least one set of # machines in the field (which return cx = dx = 0). The commit in Linus's tree is here: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=39b68976ac653cfdc7f872a293e8b7928de2dcc6 Hope this helps! ** Changed in: linux (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/219868 Title: Boot fails with "initrd extends beyond end of memory" after upgrade to Hardy -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
