Re: [Xen-users] Not enough RAM for domain 0 allocation (512G RAM / 64CPU)

[Juergen Gross <jgross@xxxxxxxx>]

On 09/04/2015 06:08 PM, Leandro Mendes wrote:
> Hi guys,
>
> I have a DELL R820 (64CPU 512GRAM) and i can't boot XEN (4.5) and Kernel
> 4.0.4 (Fedora Server 22)
>
> I got the following error:
>
> (XEN) ****************************************
> (XEN) Panic on CPU0 0:
> (XEN) Not enough RAM for domain 0 allocation
> (XEN) ****************************************
>
>
> Tried to boot with the following options:
>
> mem=512G dom0_mem=512M  => No panic, but reboot after it loads Xen
> mem=512G                => Panic
> dom0_mem=max:32G        => No panic, but reboot after it loads Xen
>
>
> Do you guys have any idea about what's wrong?
Can you provide a full log of the console messages, please? Please use
the additional hypervisor boot options:

loglvl=all guest_loglvl=all sync_console

Just in case you haven't done that: you'll probably need to set up a
serial console to get the console log, please see

http://wiki.xenproject.org/wiki/Xen_Serial_Console

for how to do this.


Juergen


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