Re: 4GB memory and Intel Dual-Core system

From: Lukas Hejtmanek
Date: Fri Oct 28 2005 - 15:59:06 EST


Hello,

I have system with 2 Pentium 4 Xeon EM64T processors using 4GB of RAM.

Kernel is 2.6.13.4 compiled for x86_64 architecture.

Btw, /proc/cpuinfo reports, that only 36 bits are availalable for physical
memory. Not 40.

# cat /proc/meminfo
MemTotal: 4075408 kB
MemFree: 23696 kB

# cat /proc/iomem
[...]
dd100000-dd3fffff : PCI Bus #01
dd100000-dd100fff : 0000:01:00.1
dd101000-dd101fff : 0000:01:00.3
dd200000-dd2fffff : PCI Bus #02
dd200000-dd201fff : 0000:02:02.0
dd200000-dd200fff : aic79xx
dd202000-dd203fff : 0000:02:02.1
dd202000-dd202fff : aic79xx
dd220000-dd23ffff : 0000:02:03.0
dd220000-dd23ffff : e1000
dd240000-dd25ffff : 0000:02:03.1
dd240000-dd25ffff : e1000
dd300000-dd3fffff : PCI Bus #03
dd300000-dd3fffff : 0000:03:04.0
dd400000-deffffff : PCI Bus #06
dd400000-dd400fff : 0000:06:01.0
de000000-deffffff : 0000:06:01.0
e0000000-efffffff : reserved
fec00000-fec0ffff : reserved
fee00000-fee00fff : reserved
ff800000-ffbfffff : reserved
fffffc00-ffffffff : reserved
100000000-12fffffff : System RAM

According to /proc/pci it is E7520/E7525 board. It has a number of PCI devices.

--
Lukáš Hejtmánek
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