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Re: [Xen-devel] [Xen-users] xl info displays less ram than the total available



I'm using grub2. After the lunch break I can post the full grub menu entry and the exact version of grub2.


On 6 October 2016 12:55:16 CEST, George Dunlap <george.dunlap@xxxxxxxxxx> wrote:
On Wed, Oct 5, 2016 at 3:01 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
On 05.10.16 at 15:32, <blallo@xxxxxxxxxx> wrote:
Here it comes xl dmesg with Xen booted with e820-verbose=true

I have to admit that the only way I can see

(XEN) Initial Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009ec00 (usable)
(XEN) 000000000009ec00 - 00000000000a0000 (reserved)
(XEN) 00000000000e0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 0000000079cbe000 (usable)
(XEN) 0000000079cbe000 - 00000000bcd2f000 (reserved)
(XEN) 00000000bcd2f000 - 00000000bce7f000 (ACPI NVS)
(XEN) 00000000bce7f000 - 00000000bceff000 (ACPI data)
(XEN) 00000000bceff000 - 00000000bfa00000 (reserved)
(XEN) 00000000f8000000 - 00000000fc000000 (reserved)
(XEN) 00000000fec00000 - 00000000fec01000 (reserved)
(XEN) 00000000fed08000 - 00000000fed09000 (reserved)
(XEN) 00000000fed10000 - 00000000fed18000 (reserved)
(XEN) 00000000fed18000 - 00000000fed19000 (reserved)
(XEN) 00000000fed19000 - 00000000fed1a000 (reserved)
(XEN) 00000000fed1c000 - 00000000fed20000 (reserved)
(XEN) 00000000fee00000 - 00000000fee01000 (reserved)
(XEN) 00000000ffc00000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 000000043e600000 (reserved)

having all those reserved regions above 2Gb is for the boot
loader to behave oddly. Since Linux and Xen use different paths
in the boot loader, one can't really draw conclusions from Linux
getting to see a better memory map.

Do you have any suggestions for how to check whether it really is the
bootloader?

Leonardo, are you using grub2 or a different bootloader?

-George

--
Leonardo
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