Re: [Xen-devel] Possible regression: XEN 4.0.0 total_memory decrease

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

Are the hypervisor and dom0 kernel 64-bit or 32-bit? Xen prints a message
"System RAM: xxx" early during boot. Do these differ significantly for you
between 3.4.2 and 4.0.0?

 K.

On 15/04/2010 16:54, "Alex Williams" <awilliams@xxxxxxxx> wrote:

> Hello,
> 
> I noticed a significant *decrease* (150MB) in "total_memory" on a host
> build using XEN 4.0.0 with kernel 2.6.18.
> 
> Here are the details:
> 
> Server = 4096MB RAM
> XEN 3.4.2 + kernel 2.6.18: xm info | grep total_memory = 4084
> XEN 4.0.0 + kernel 2.6.18: xm info | grep total_memory = 3946
> 
> The exact same kernel config file was used for both builds. I also made
> sure there is absolutely no difference on the hosts (while the builds
> are created on a different machine).
> 
> This seems like a regression, unless someone can provide suggestions on
> how to correct this?
> 
> Thanks.
> 



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