i386 with 4GB RAM: less than 2GB available on A2SAV (Intel Atom E3940)

[Eugene Grosbein]

28.01.2018 21:57, Andre Albsmeier wrote:

> I have a lot of machines running with 4 GB physical RAM and, for
> some reasons, I still have to use a 32 bits OS.
> 
> All of them show something between 3 and 3.5 GB of RAM available
> in dmesg but the brand new Supermicro A2SAV really shocked me:
> 
> FreeBSD 11.1-STABLE #0: Mon Jan 15 06:57:10 CET 2018
> ...
> real memory  = 4294967296 (4096 MB)
> avail memory = 1939558400 (1849 MB)
> ...
> 
> So do people have any ideas how I might get a bit closer to at least
> 3 GB? I assume there are no FreeBSD knobs which might help but hope
> dies last...

First, try to decrease amount of RAM dedicated to integrated video, if any (BIOS Setup).

Also, I'd like to know reasons that made you stick to 32 bit OS
as we have pretty good support for 32 bit applications running under 64 bit system.