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Re: [Xen-devel] Yet another "Not enough memory for DOM0 memory reservati

To: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>
Subject: Re: [Xen-devel] Yet another "Not enough memory for DOM0 memory reservation"
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 19 Jan 2005 07:51:02 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 19 Jan 2005 07:55:50 +0000
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In-reply-to: Your message of "Tue, 18 Jan 2005 23:45:32 EST." <EF8D308BE33AF54D8934DF26520252D3DDCB66@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
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We have only tested on machines with up to 2GB RAM. Your problem looks
similar to a recent report that Xen fails on a 4GB machine. We have
just obtained a new 4GB machine ourseleves -- once we have that set up
in our test rack I can test >=4GB configurations and hopefullyu put
these big-mem bugs to rest. :-)

 -- Keir

> I am running Xen 2.0.3 on a 2x Intel P4 3.4GHz box with 8GB of RAM. My
> base system is SLES9 SP1-RC3. When I try booting Xen DOM0, I am getting
> the following error message.
> 
> Xen version 2.0.3 (root@site) (gcc version 3.3.3 (SuSE Linux)) Tue Jan
> 18 13:34:53 EST 2005
> Latest ChangeSet: information unavailable
> 
> (XEN) Physical RAM map:
> (XEN)  0000000000000000 - 000000000009fc00 (usable)
> (XEN)  000000000009fc00 - 00000000000a0000 (reserved)
> (XEN)  00000000000ebaf0 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 00000000dffd0000 (usable)
> (XEN)  00000000dffd0000 - 00000000dffdf000 (ACPI data)
> (XEN)  00000000dffdf000 - 00000000e0000000 (ACPI NVS)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000ffc00000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 0000000220000000 (usable)
> (XEN) System RAM: 8191MB (8388028kB)
> (XEN) Not enough memory for DOM0 memory reservation.
> 
> I have added HIGHMEM support to the kernel and set dom0_mem to 131072.
> Am I tripping up because I am trying to run on a system with 8GB of RAM?
> 
> Any help would be appreciated.
> Thanks
> Aravindh
> 
> 
> 
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 -=- MIME -=- 
I am running Xen 2.0.3 on a 2x Intel P4 3.4GHz box with 8GB of RAM. My
base system is SLES9 SP1-RC3. When I try booting Xen DOM0, I am getting
the following error message.

Xen version 2.0.3 (root@site) (gcc version 3.3.3 (SuSE Linux)) Tue Jan
18 13:34:53 EST 2005
Latest ChangeSet: information unavailable

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009fc00 (usable)
(XEN)  000000000009fc00 - 00000000000a0000 (reserved)
(XEN)  00000000000ebaf0 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000dffd0000 (usable)
(XEN)  00000000dffd0000 - 00000000dffdf000 (ACPI data)
(XEN)  00000000dffdf000 - 00000000e0000000 (ACPI NVS)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000ffc00000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000220000000 (usable)
(XEN) System RAM: 8191MB (8388028kB)
(XEN) Not enough memory for DOM0 memory reservation.

I have added HIGHMEM support to the kernel and set dom0_mem to 131072.
Am I tripping up because I am trying to run on a system with 8GB of RAM?

Any help would be appreciated.
Thanks
Aravindh



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