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RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation

To: xen-devel@xxxxxxxxxxxxxxxxxxx, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
From: ccmail111 <ccmail111@xxxxxxxxx>
Date: Fri, 19 Mar 2010 16:47:17 -0700 (PDT)
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Hi Dan,

Thanks for response.
I just tried (with dom0_mem=512M) and see error:
"Domain 0 allocation is too small for kernel image"
But if I dont use the parameter I see error as in subject line which is different.
Question is: does subject line error printed by kernel ? Any kernel parameter that I need to change during build ?
Any suggestions ?
Is there anyway I can specifiy the max for kernel and xen ?

--- On Fri, 3/19/10, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> wrote:

From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Subject: RE: [Xen-devel] Fw: Not enough RAM for domain 0 allocation
To: "ccmail111" <ccmail111@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Date: Friday, March 19, 2010, 6:10 PM

You should be able to get around this problem by specifying dom0_mem= on the Xen boot line, e.g.:


kernel /boot/xen.gz noreboot loglvl=all dom0_mem=256M


From: ccmail111 [mailto:ccmail111@xxxxxxxxx]
Sent: Friday, March 19, 2010 3:43 PM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Fw: Not enough RAM for domain 0 allocation


--- On Fri, 3/19/10, ccmail111 <ccmail111@xxxxxxxxx> wrote:

From: ccmail111 <ccmail111@xxxxxxxxx>
Subject: Not enough RAM for domain 0 allocation
To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Date: Friday, March 19, 2010, 5:38 PM




I see above error when xen tries to boot up.


The grub.conf is:


title Dom0 Xen 3.4.2  XenLinux 2.6
       kernel /boot/xen.gz noreboot loglvl=all
       module /boot/vmlinuz.vm  root=dev/ram0 ro
       module /boot/ramdisk.gz

Looking through archives I found couple of pointers but no solution.

The closest I see:

by Keir:


" Either this restriction of the domain builder needs
to be lifted (a bit of a pain and not really on anyone's todo list), ..."


Any solutions/suggestions is appreciated !


Thanks !






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