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Re: [Xen-users] dynamic memory extension not working on Debian Squeeze

  • To: xen-users@xxxxxxxxxxxxx
  • From: Alexandre Kouznetsov <alk@xxxxxxxxxx>
  • Date: Tue, 20 Nov 2012 11:30:32 -0600
  • Delivery-date: Tue, 20 Nov 2012 17:31:49 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

El 20/11/12 11:07, Ian Campbell escribió:
On Tue, 2012-11-20 at 16:57 +0000, Alexandre Kouznetsov wrote:

root@scoutapi-dev:~# dmesg| grep "Command line"
[    0.000000] Command line: root=/dev/xvda2 ro mem=8G
root@scoutapi-dev:~# dmesg | grep Xen
[    0.000000]  Xen: 0000000000000000 - 00000000000a0000 (usable)
[    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
[    0.000000]  Xen: 0000000000100000 - 0000000010000000 (usable)

0x10000000 != 8G so maybe that's not the right parameter name, but I
thought so.
I know, but that's what it shows.
I have attached the complete dmesg for a better reference. This one is after I changed from "mem=8G" to "mem=8192M".

If that doesn't help then I'm afraid I'm all out of ideas.

Perhaps experiment with upgrading the dom0 to e.g. the Wheezy hypervisor
+ kernel and/or the Wheezy dom0 kernel and see if that helps.
I have another box, upgraded from Squeeze to Wheezy. It uses xen-4.1-amd64 and kernel 3.2.0-2-amd64. The DomUs there are Squeeze yet, but I guess some can use Dom0's 3.2 kernel, after installing the corresponding modules tree. I'll test tonight and give feedback.

Thank you.

Alexandre Kouznetsov

Attachment: DomU_dmesg.txt
Description: Text document

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