Re: [Xen-devel] xen not able to use total physical memory present in the system (192GB)

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.09.12 at 15:37, àààààà ààààà <agasheac@xxxxxxxxx> wrote:
> I am using xen-4.1.2 with fedora-16 (kernel version 3.1.0.7) as dom0 on
> system having 192GB of RAM.
> 
> When i booted system xm info shows (total _memory parameter as 192GB and
> free_memory as 25MB) full memory but /proc/meminfo reports 132GB and xm
> list also reports 192GB for dom0
> 
> When I ran first VM with 32GB RAM, xm info started reporting memory for
> dom0 around 132GB and 32GB for VM and cat /proc/meminfo on dom0 reported
> around 100GB. I am able to boot 4 VMs with this setup but 5th VM fails to
> boot with not enough memory.

Without you providing logs, we can only guess - like Pasi did - that
this may be a Dom0 kernel issue.

And - you aren't, by chance, running a 32-bit Dom0 kernel?

Jan

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