/proc/meminfo
Hi all,
I have 8GB RAM on my machine, but when I do cat /proc/meminfo, it shows only 512MB. Anybody is having any idea? why is it so ? I am running RHEL4u4 32 bit OS and having kernel 2.6.9-42.ELsmp [root@amd-245 ~]# cat /etc/issue Red Hat Enterprise Linux ES release 4 (Nahant Update 4) Kernel \r on an \m [root@amd-245 ~]# uname -a Linux amd-245 2.6.9-42.ELsmp #1 SMP Wed Jul 12 23:27:17 EDT 2006 i686 athlon i386 GNU/Linux [root@amd-245 ~]# Thanks in advance |
Can you give the output of /proc/meminfo?
Is your system recognizing 8GB of RAM at bootup in the BIOS? What does top or free provide when you run those commands? |
I heard that no Red Hat EL kernel has hugemem enabled, this means the most you will get is 4 GB of usable RAM. I could be wrong, but I don't know where to check either.
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ok !!
I got it !! I was giving Kernel parameters as mem=512M , mistakenly... Anyway, i hav got a new doubt then.... I removed the option now... But, will I be able to use all 8G RAM or I ll be allowed to use only 4G.... Is it like that if I want to use all 8G RAM then I hv to boot hugemem Kernel ? |
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No
I was able to see 8G RAM... So, no prob... But then still i dont understand why hugemem kernel is there ? |
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