Free Mem

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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 : .
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_mem24M,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

2 thoughts on - Free Mem

  • 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

  • Thanks for the response. After looking at this closer i think this was operator error. It was actually correct at 2GB.

    Deron

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