Re: [Minios-devel] high number of shared pages

[Juergen Gross <lists@xxxxxxxxx>]

On 12/09/17 10:49, Samuel Thibault wrote:
> Hello,
> 
> maximilien roux, on mar. 12 sept. 2017 08:18:46 +0000, wrote:
>> I am trying to share memory between two minios-based domains. When I try to
>> share more than 495 pages, the mapping of the 495th pages always fail.
> 
> I guess you reached this limit which you could increase:
> 
> gnttab.c:#define NR_GRANT_FRAMES 4

I don't think so. One grant entry needs only 8 bytes. So you can have
512 grant entries per page, or 2048 with 4 grant frames.


Juergen


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