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Date: Fri, 15 May 2015 18:33:59 +1000
From: andrew clarke <mail@ozzmosis.com>
To: Matthias Apitz <guru@unixarea.de>
Cc: freebsd-questions@freebsd.org
Subject: Re: real memory 4 GB ./. available memory 2 GB
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References: <20150515073113.GA3513@c720-r276659>
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On Fri 2015-05-15 09:31:13 UTC+0200, Matthias Apitz (guru@unixarea.de) wrote:

> I run a 11-CURRENT amd64 on an Acer C720. What could cause the diff
> between real and available mem:
> 
> May 14 23:11:16 freeyaz kernel: real memory  = 4301258752 (4102 MB)
> May 14 23:11:16 freeyaz kernel: avail memory = 1927536640 (1838 MB)

Some possibilities:

- The video subsystem is using a bucketload of memory (check your BIOS settings)

- the BIOS firmware needs upgrading

- bad memory?