From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: "अनिकेत आगाशे" <agasheac@gmail.com>
Cc: xen-devel@lists.xen.org
Subject: Re: xen not able to use total physical memory present in the system (192GB)
Date: Tue, 11 Sep 2012 14:29:08 -0400 [thread overview]
Message-ID: <20120911182907.GB30767@phenom.dumpdata.com> (raw)
In-Reply-To: <CAMQ5s704d8-UscdPtpJ8GPMs_YzTjiOupdi9mWfpfDrRnYV=vQ@mail.gmail.com>
On Tue, Sep 11, 2012 at 07:07:00PM +0530, अनिकेत आगाशे wrote:
> Hi
>
> I am using xen-4.1.2 with fedora-16 (kernel version 3.1.0.7) as dom0 on
> system having 192GB of RAM.
Can you check /boot/config* | grep XEN_MAX_DOMAIN
>
> 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.
>
>
> ultimately not able to use full system memory ? 60GB went missing from
> memory.
There are also some bug-fixes for this that I've been posting that
I plan to integrate in v3.7.
Are you up for testing them out and to see if they work?
>
> http://old-list-archives.xen.org/archives/html/xen-devel/2009-07/msg00521.html
>
> On this thread,
>
> Jan mentined
>
> "the hypervisor has been validated to work fine with 1Tb for much longer, it was
> really the Dom0 kernel that had issues when not passing a dom0_mem=
> option".
>
> I am not using this option "dom0_mem". Is anybody faced any issue like this ?
>
>
> Thanks,
> Aniket
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
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prev parent reply other threads:[~2012-09-11 18:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-11 13:37 xen not able to use total physical memory present in the system (192GB) अनिकेत आगाशे
2012-09-11 14:10 ` Pasi Kärkkäinen
2012-09-11 14:27 ` Jan Beulich
2012-09-11 18:29 ` Konrad Rzeszutek Wilk [this message]
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