you must append the kernel command line with mem=6G.
this example shows how to enable the proper parameters in the grub.conf
file:
----
title Red Hat Enterprise Linux Server (2.6.18-4.elxen)
root (hd0, 0)
kernel /xen.gz-2.6.18-4-el5 mem=6G
module /vmlinuz -2.6.18-4.el5xen ro root=LABEL=/
module /initrd-2.6.18-4.el5xen.img
----
or you can upgrade kernel with support bigmem (big memory)
hint : kernel
kernel-bigmem, kernel-enterprise, Centos Plus
----- Original Message -----
From: "dv0r4k" <[EMAIL PROTECTED]>
To: <tanya-jawab@linux.or.id>
Sent: Monday, April 07, 2008 3:43 AM
Subject: [tanya-jawab] Memory linux hilang
Halo semua,
Saya pake CentOS 5 terinstall dengan 6GB memory, terbaca dengan baik dari
dmesg. Tapi kenapa ya 'free' cuma nampilin 3GB?
[EMAIL PROTECTED] ~]# dmesg | head
Linux version 2.6.18-53.1.4.el5xen ([EMAIL PROTECTED]) (gcc
version 4.1.2 20070626 (Red Hat 4.1.2-14)) #1 SMP Fri Nov 30 01:53:35 EST
2007
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 00000001749d6000 (usable)
5233MB HIGHMEM available.
727MB LOWMEM available.
Using x86 segment limits to approximate NX protection
On node 0 totalpages: 1526230
DMA zone: 186366 pages, LIFO batch:31
HighMem zone: 1339864 pages, LIFO batch:31
found SMP MP-table at 000f4f80
[EMAIL PROTECTED] ~]# free -m
total used free shared buffers cached
Mem: 2951 852 2098 0 555 83
-/+ buffers/cache: 214 2736
Swap: 2047 0 2047
[EMAIL PROTECTED] ~]#
Linux yang ini dedicated xen dengan 4 guest OS, semua linux. Selain
memory, semua running ok koq.
Please help.
EF
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