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Why you should read your log messages from time to time [Update]

I didn't notice this for months. I was only able to use ca. 900 MB of my 1024 MB of RAM. It only happened accidentally that I read through my logs and noticed this:

Dec 26 19:33:37 localhost kernel: Warning only 896MB will be used.
Dec 26 19:33:37 localhost kernel: Use a HIGHMEM enabled kernel.
Dec 26 19:33:37 localhost kernel: 896MB LOWMEM available.

After setting the "High Memory Support" kernel option to 4GB and a quick kernel recompile, I can now use my full RAM. Nice, eh?

Update 2005-12-31: Thanks a lot to all the people pointing out (via comments in the blog and emails) that there's a better way to do this!

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