Comment 6 for bug 189269

Note that enabling CONFIG_HIGHMEM64G also enables CONFIG_X86_PAE by default. This will most likely not be enabled by default until the known implications of having CONFIG_X86_PAE enabled can be determined. As a workaround, can you try using the following kernel parameter to see if it helps:

ramdisk_size=[RAM] Sizes of RAM disks in kilobytes See Documentation/ramdisk.txt.

It was also mentioned that this was fixed upstream. I'm curious if anyone would be willing to test with the the Intrepid Ibex 8.10 kernel? It was most recently rebased with the upstream 2.6.25 kernel (which contains the patch you've referenced) and is currently available in the following PPA:

https://edge.launchpad.net/~kernel-ppa/+archive

If you are not familiar with how to install packages from a PPA basically do the following . . .

Create the file /etc/apt/sources.list.d/kernel-ppa.list to include the following two lines:

deb http://ppa.launchpad.net/kernel-ppa/ubuntu hardy main
deb-src http://ppa.launchpad.net/kernel-ppa/ubuntu hardy main

Then run the command:\n\nsudo apt-get update\n\nYou should then be able to install the linux-image-2.6.25 kernel package. After you've finished testing you can remove the kernel-ppa.list file and run 'sudo apt-get update' once more. Please let us know your results. Thanks.