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Re: [Xen-users] Xen 3 not seeing the right amount of RAM on x86_64

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Chuck McIntyre" <chuck.mcintyre@xxxxxxxxx>
  • Date: Wed, 28 Nov 2007 10:41:17 -0800
  • Delivery-date: Wed, 28 Nov 2007 10:42:12 -0800
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On Nov 28, 2007 5:24 AM, Rafał Kupka <rkupka+Listy.Xen@xxxxxxxxxxxxx> wrote:
> Could you send e820 memory map as seen by Xen?
> $ xm dmesg
> lines after "Xen-e820 RAM map:"

Here is the output form the 4GB system

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009dc00 (usable)
(XEN)  0000000000100000 - 00000000dcff0000 (usable)
(XEN) System RAM: 3535MB (3620404kB)
(XEN) Xen heap: 14MB (14340kB)
(XEN) found SMP MP-table at 000ff780
(XEN) DMI present.

> Did grub command displaymem shows all memory?

No, grub displaymem shows:

grub> displaymem
 EISA Memory BIOS Interface is present
 Address Map BIOS Interface is present
 Lower memory: 631K, Upper memory (to first chipset hole): 3619776K


This is again from the 4GB system. Do you need me to provide the same
details for the 8GB system? I can but it's more difficult as it is
nominally in use as a test system for someone right now (albeit not
running as many images as we would like).
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