Is the system BIOS showing 18 GB of memory?  What happens when you boot outside of Xen?  Do you see all 18 GB of memory?  (`cat /proc/meminfo` or `free -m`)

-Gene

On Wed, Aug 28, 2013 at 9:14 AM, Deron <fecastle@gmail.com> wrote:

Hello,  

I am not sure if this is the correct Mailing list for the issue I have. 

I have a new system with 18GB of Physical memory on the system.  I loaded CentOS 6.4.  But when I boot into Dom0, I only see  (xm info) 2GB of total memory?   I set 1GB for Dom0, but I am not sure why the hypervisor does not see all the memory.

[root@barbaro images]# xm info

host                   : <host>.<domain>

release                : 3.4.54-8.el6.centos.alt.x86_64

version                : #1 SMP Tue Jul 23 17:29:30 UTC 2013

machine                : x86_64

nr_cpus                : 4

nr_nodes               : 1

cores_per_socket       : 4

threads_per_core       : 1

cpu_mhz                : 2133

hw_caps                : bfebfbff:28100800:00000000:00003b40:009ce3bd:00000000:00000001:00000000

virt_caps              : hvm

total_memory           : 2037

free_memory            : 988

free_cpus              : 0

xen_major              : 4

xen_minor              : 2

xen_extra              : .2-23.el6

xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 

xen_scheduler          : credit

xen_pagesize           : 4096

platform_params        : virt_start=0xffff800000000000

xen_changeset          : unavailable

xen_commandline        : dom0_mem=1024M,max:1024M loglvl=all guest_loglvl=all

cc_compiler            : gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)

cc_compile_by          : mockbuild

cc_compile_domain      : centos.org

cc_compile_date        : Thu Jul 18 13:42:23 UTC 2013

xend_config_format     : 4

Thanks.  If you have any suggestions that would be great.

Deron

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