Re: [Xen-users] Unable to create guest with more than 2gb of memory

["Marc Tousignant" <myrdhn@xxxxxxxxx>]

-----Original Message-----
From: Ian Campbell [mailto:ian.campbell@xxxxxxxxxx] 
Sent: Wednesday, October 7, 2015 4:52 AM
To: Marc Tousignant <myrdhn@xxxxxxxxx>; xen-users@xxxxxxxxxxxxx
Subject: Re: [Xen-users] Unable to create guest with more than 2gb of memory

On Tue, 2015-10-06 at 21:42 -0400, Marc Tousignant wrote:
> I believe I have asked about this before, but never got a response 
> back on how to fix it.
> The max memory when running 4.1 is 2048. Anything higher and the guest 
> will not start.
> The error I get is
> xc: error: panic: xc_dom_boot.c:401: xc_dom_gnttab_hvm_seed: failed to 
> add gnttab to physmap [errno=2]
> : Internal error
> libxl: error: libxl_dm.c:1499:device_model_spawn_outcome: domain 10 
> device model: spawn failed (rc=-3)
> libxl: error: libxl_create.c:1322:domcreate_devmodel_started: device 
> model did not start: -3
> libxl: error: libxl_dm.c:1603:kill_device_model: Device Model already 
> exited
> libxl: info: libxl.c:1691:devices_destroy_cb: forked pid 10742 for 
> destroy of domain 10
>  
> If I attempt to set the memory higher after running
>                 xl mem-set Server2012_1 2049

xl was preview quality in Xen 4.1, you should either upgrade to something more 
recent (best option IMHO) or stick with xm in 4.1.

Note that Xen 4.1 no longer receives even security support.

Ian.

---
Correction, I am on 4.5.1.
When I ran xl info I grabbed the number from release instead of xen_version

Marc 



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