asus p5b se… linux 32bit and 6gigs of RAM… wtf?
huh…
I upgrated ram in Aquarius Server… Because ddr2 price is really cool for now (107PLN), I bought 2 modules (thanks for sponsor of one - xoff 
) containing 2GB each. And so the story begun
After booting the 2.6.22 PLD kernel the system was tooootaly slow (like a turtle ). I asked - WHY? PLD Linux dist kernel does have
CONFIG_HIGHMEM4G
set up. Ok… so I build a spec with high mem enabled
CONFIG_HIGHMEM64G=y
and… nothing has changed, after experiments with ‘mem’ grub parameter I noticed that only if I set 4GB it works properly and fast… ok, I build another egg with PAE enabled… no difference (you can find this kernel in new section “packages“)
Everybody at #pldhelp channel suggested installing 64bit version of PLD (TH release).
I tried to boot up a 64bit pld rescue cd… but - it hung at
checking if image is initramfs…
I removed ram, and left only 2GB, installed TH (thanks for xoff )… and… nothing has changed… WTF i thought. I scanned the ram by memtest86… no errors. OK… google… google…google
Two interesting articles:
From ubuntu forum
Both suggested updating bios, but the problem dealt with gigabyte mainboard. As Ahmed said “what do I care - I’m dead :)”, I tried to find the new bios, but in release note was only an information about “new cpu support”. But as I said “what do I care :)”… I did a BIOS update (with eZ flash utility built in asus bios, which can update the bios with .rom file located at cdrom, floppy or pendrive). And - everything is OK :).
The system starts perfectly fast… and… take a look at this:
MemTotal: 5805668 kB
but i found in cat /proc/meminfo something like this:
VmallocTotal: 34359738367 kB … nice… 34 349 GB of what?
the answer is here
now I have a doubt to consider… use ac with 32bits or unstable th with 64bits
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