Rick has submitted this patch to the main line kernel.
Let's hope it gets accepted so we don't have to go through this!!

fedora kernel Patches:

NOTE:

All patches on this page have been fixed on April 18th 2008 with a critical bug that caused crashes (especially for 64 bit machines).

while ((str = get_longoptions (str, 3, (int *) opts), *opts)) {

while ((str = get_longoptions (str, 3, (long *) opts), *opts)) {

How to use these Patches:

These patches are meant to be applied to source rpm that you download from fedora (or a mirror) site. Follow the same compilation instruction after patch application.

Googling "compile kernel fedora way" will get you nice information about how to compile fedora kernel. I found http://www.howtoforge.com/kernel_compilation_fedora very informative.

Here are logical steps of compiling kernel-2.6.21-1.3228.fc7.BadRAM as an example:

1. Download kernel-2.6.21-1.3228.fc7.src.rpm form fedora (or a mirror) site.
2. Install kernel-2.6.21-1.3228.fc7.src.rpm

   	rpm -ivv kernel-2.6.21-1.3228.fc7.src.rpm
   

3. Change directory to your rpmbuild dir
4. Apply patch downloaded from this page

   	patch -p1 < /tmp/kernel-2.6.21-1.3228.fc7.src.rpm.BadRAM.patch
   

5. Compile kernel

Here is a tiny script that I use:

#!/bin/bash

if [ 1 -ne $# ]; then
echo "what kernel?"
exit 0
fi

cd rpmbuild.$1
diff -pruN orig patched > $1.BadRAM.patch
rm -rf rpmbuild ../rpmbuild
cd ..
which fedora-buildrpmtree > /dev/null 2>&1
if [ $? -gt 0 ]
then
  echo "no \"fedora-buildrpmtree\" found, falling back to \"rpmdev-setuptree\" (fedora 8 onwards)."
  rpmdev-setuptree
else
  echo "found fedora-buildrpmtree"
  fedora-buildrpmtree
fi
rpm -i $1
cd rpmbuild
patch -p1 < ../rpmbuild.$1/$1.BadRAM.patch
cd SPECS
if [ -e "kernel.spec" ]
then
  time rpmbuild -ba --target=i686 --with baseonly kernel.spec
else
  time rpmbuild -ba --target=i686 --with baseonly kernel-2.6.spec
fi
cd ../..
mv rpmbuild rpmbuild.$1

Please note:

Follow this link for my Sony VAIO T260p story.