[SDBUG] More than 4GB of RAM on amd64?

Seth Fulton seth.fulton at sysfu.com
Fri Nov 13 02:34:37 PST 2009

On Thu, 12 Nov 2009 21:29:25 -0800, Michael J McCafferty  
<mike at m5computersecurity.com> wrote:

> All,
> 	I just put OpenBSD 4.6 amd64 on a 8 core server with 16GB of RAM.
> OpenBSD only sees 3.5GB. Am I out of luck? I see a scarce few posts when
> I Google for this. Does anyone have any more info on when/if there
> is/will be support for big memory?
> 	This is for a customer who is using OpenBSD for is eCommerce setup and
> he's really beating up the hardware he has now. He needs more power! :o)
> He is resistant to changing to FreeBSD.
> Thanks!
> Mike

Mike, I think as of the 4.6 release you might still have to manually  
enable bigmem and then re-compile the kernel.


Have you tried that yet?


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