Comment 3 for bug 189269

I'm confused:

"Looking at the kernel configuration CONFIG_HIMEM4G=y is set so all 4GB should be identified."

which implied that the 4GB options is good for identifying the 4GB RAM.

But the next sentence conflicts this:

"After recompiling the -generic kernel with CONFIG_HIMEM64G=y and removing CONFIG_HIMEM4G=y, /proc/meminfo appropriately displays all 4GB."

I think the point is that

CONFIG_HIMEM4G=y

does NOT work, while

CONFIG_HIMEM64G=y

works.