Missing 8 meg RAM?

[Charles Mott <cmott@scientech.com>]

My computer has 40 meg of RAM, but OpenBSD only uses
32 meg.  Any ideas?   -- C. Mott

OpenBSD 2.8 (GENERIC) #399: Mon Nov  6 10:59:23 MST 2000
    deraadt@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: F00F bug workaround installed
cpu0: Intel Pentium (P54C) ("GenuineIntel" 586-class) 134 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8
real mem  = 41529344 (40556K)
avail mem = 33427456 (32644K)
using 532 buffers containing 2179072 bytes (2128K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(4a) BIOS, date 06/17/97, BIOS32 rev. 0 @
0xfd230
apm0 at bios0: Power Management spec V1.1
apm0: battery life expectancy 100%
apm0: AC on, battery charge high
pcibios0 at bios0: rev. 2.1 found at 0xfd1b0[0x950]
pcibios0: PCI BIOS has 6 Interrupt Routing table entries
pcibios0: PCI bus #0 is the last bus
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel 82437 (Triton
MX) PCI/CACHECOMP/DRAM" rev 
0x01
pcib0 at pci0 dev 1 function 0 "Intel 82371 (Triton MX) PCI-ISA and
IDE" rev 0x0
2
"Neomagic Magicgraph NM2070" rev 0x01 at pci0 dev 2 function 0 not
configured
pcic3 at pci0 dev 4 function 0 "Cirrus Logic CL-PD6729" rev 0xfe