Xen users - May 2010 - Error: (4, ''Out of memory'', "xc_dom_boot_mem_init: can''t allocate low memory for domain\n")

Hello everyone...

I get the following error when i try to creat a virtual machine

Error: (4, ''Out of memory'', "xc_dom_boot_mem_init:
can''t allocate low memory
for domain\n")

I''m using Xen under Gentoo, kernel 2.6.32-r1 in a i686 Dual Core AMD
Opteron(tm) Processor 290 AuthenticAMD with 16Gb of memory and 4Tb of hard
disk.

It was a pain to install xen in it but when i finally did it, i get this
error whenever i try to create a vm.

I checked /var/log/xen/.log and here is some of the stuff i get:

*domain-builder-ng.log*

    virt_entry       = 0xffffffff80200000
    p2m_base         = 0xffffffffffffffff
xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0xffffffff80200000 ->
0xffffffff8072ce88
xc_dom_mem_init: mem 512 MB, pages 0x20000 pages, 4k each
xc_dom_mem_init: 0x20000 pages
xc_dom_boot_mem_init: called
x86_compat: guest xen-3.0-x86_64, address size 64
x86_compat: warning: failed (rc=-1)
xc_dom_boot.c:143: panic: xc_dom_boot_mem_init: can''t allocate low
memory
for domain
xc_dom_release: called

*xend.log*

  File "/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py",
line
95, in create
    vm.start()
  File "/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py",
line
456, in start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib/python2.6/site-packages/xen/xend/XendTask.py", line
209, in
log_progress
    retval = func(*args, **kwds)
  File "/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py",
line
2590, in _initDomain
    raise VmError(str(exn))
VmError: (4, ''Out of memory'', "xc_dom_boot_mem_init:
can''t allocate low
memory for domain\n")

I tried changing the memory of dom0 so i have more left for the domU''s
but
it didn''t work.

I don''t know what else to do here. I''ve searched online, and
nothing so far.
I will go on w/ my search but if anyone has an idea or sugestion it will be
useful.


-- 
A day without sunshine is like, you know...night.


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On Fri, May 14, 2010 at 11:30:47AM -0430, Jose Rodriguez
wrote:
>    Hello everyone...
> 
>    I get the following error when i try to creat a virtual machine
> 
>    Error: (4, ''Out of memory'',
"xc_dom_boot_mem_init: can''t allocate low
>    memory for domain\n")
> 
>    I''m using Xen under Gentoo, kernel 2.6.32-r1 in a i686 Dual
Core AMD
>    Opteron(tm) Processor 290 AuthenticAMD with 16Gb of memory and 4Tb of
hard
>    disk.
> 
>    It was a pain to install xen in it but when i finally did it, i get this
>    error whenever i try to create a vm.
> 
>    I checked /var/log/xen/.log and here is some of the stuff i get:
> 
>    domain-builder-ng.log
> 
>        virt_entry       = 0xffffffff80200000
>        p2m_base         = 0xffffffffffffffff
>    xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0xffffffff80200000 ->
>    0xffffffff8072ce88
>    xc_dom_mem_init: mem 512 MB, pages 0x20000 pages, 4k each
>    xc_dom_mem_init: 0x20000 pages
>    xc_dom_boot_mem_init: called
>    x86_compat: guest xen-3.0-x86_64, address size 64
>    x86_compat: warning: failed (rc=-1)
>    xc_dom_boot.c:143: panic: xc_dom_boot_mem_init: can''t allocate
low memory
>    for domain
>    xc_dom_release: called
> 
>    xend.log
> 
>      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
>    95, in create
>        vm.start()
>      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
>    456, in start
>        XendTask.log_progress(31, 60, self._initDomain)
>      File
"/usr/lib/python2.6/site-packages/xen/xend/XendTask.py", line 209,
>    in log_progress
>        retval = func(*args, **kwds)
>      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
>    2590, in _initDomain
>        raise VmError(str(exn))
>    VmError: (4, ''Out of memory'',
"xc_dom_boot_mem_init: can''t allocate low
>    memory for domain\n")
> 
>    I tried changing the memory of dom0 so i have more left for the
domU''s but
>    it didn''t work.
> 
>    I don''t know what else to do here. I''ve searched
online, and nothing so
>    far. I will go on w/ my search but if anyone has an idea or sugestion it
>    will be useful.
> 
Please paste your dom0 grub.conf.

-- Pasi


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> On Fri, May 14, 2010 at 11:30:47AM -0430, Jose Rodriguez wrote:
> >    Hello everyone...
> >
> >    I get the following error when i try to creat a virtual machine
> >
> >    Error: (4, ''Out of memory'',
"xc_dom_boot_mem_init: can''t allocate low
> >    memory for domain\n")
> >
> >    I''m using Xen under Gentoo, kernel 2.6.32-r1 in a i686
Dual Core AMD
> >    Opteron(tm) Processor 290 AuthenticAMD with 16Gb of memory and 4Tb
of hard
> >    disk.
> >
> >    It was a pain to install xen in it but when i finally did it, i get
this
> >    error whenever i try to create a vm.
> >
> >    I checked /var/log/xen/.log and here is some of the stuff i get:
> >
> >    domain-builder-ng.log
> >
> >        virt_entry       = 0xffffffff80200000
> >        p2m_base         = 0xffffffffffffffff
> >    xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0xffffffff80200000 ->
> >    0xffffffff8072ce88
> >    xc_dom_mem_init: mem 512 MB, pages 0x20000 pages, 4k each
> >    xc_dom_mem_init: 0x20000 pages
> >    xc_dom_boot_mem_init: called
> >    x86_compat: guest xen-3.0-x86_64, address size 64
> >    x86_compat: warning: failed (rc=-1)
> >    xc_dom_boot.c:143: panic: xc_dom_boot_mem_init: can''t
allocate low memory
> >    for domain
> >    xc_dom_release: called
> >
> >    xend.log
> >
> >      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
> >    95, in create
> >        vm.start()
> >      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
> >    456, in start
> >        XendTask.log_progress(31, 60, self._initDomain)
> >      File
"/usr/lib/python2.6/site-packages/xen/xend/XendTask.py", line 209,
> >    in log_progress
> >        retval = func(*args, **kwds)
> >      File
"/usr/lib/python2.6/site-packages/xen/xend/XendDomainInfo.py", line
> >    2590, in _initDomain
> >        raise VmError(str(exn))
> >    VmError: (4, ''Out of memory'',
"xc_dom_boot_mem_init: can''t allocate low
> >    memory for domain\n")
> >
> >    I tried changing the memory of dom0 so i have more left for the
domU''s but
> >    it didn''t work.
> >
> >    I don''t know what else to do here. I''ve searched
online, and nothing so
> >    far. I will go on w/ my search but if anyone has an idea or
sugestion it
> >    will be useful.
> >
>
> Please paste your dom0 grub.conf.
>
> -- Pasi
Here is Dom0''s grub.conf:

default 0
timeout 5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title Gentoo Xen-2.6.32
root (hd0,0)
kernel /boot/xen.gz
module /boot/kernel-2.6.32-xen root=/dev/sdy1

title Gentoo Linux 2.6.32-r7
root (hd0,0)
kernel /boot/kernel-2.6.32-gentoo-r7 root=/dev/sdy1 real_root=/dev/sdy1

title Gentoo-Xen 3
root (hd0,0)
kernel /boot/xen.gz
module /boot/kernelXEN3 root=/dev/sdy1

title Gentoo Linux 2.6.27-r8
root (hd0,0)
kernel /boot/kernel-2.6.27-gentoo-r8 root=/dev/ram0 real_root=/dev/sdy1
initrd /boot/initramfs-genkernel-x86-2.6.27-gentoo-r8

# vim:ft=conf:

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