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

[Pasi Kärkkäinen <pasik@xxxxxx>]

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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