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xen-users
Re: [Xen-users] Error: Not enough memory is available, and dom0 cannot b
> When I try to start a domU, it gives me an error:
>
> [root@xx xx]# xm create -c /etc/xen/fedora.fc6.cse
> Using config file "/etc/xen/fedora.fc6.cse"
> Error: Not enough memory is available, and dom0 cannot be shrunk any
> further
Usually this happens when you're bumping against dom0's low memory limit.
This is set in /etc/xen/xend-config.sxp as something like "dom0-min-mem".
What was that set to when you had problems?
You may find something interesting in the output /var/log/xend.log but I
somewhat doubt it...
Another thing that's worth noting is that I often recommend people disable
automatic resizing of dom0's memory (set dom0-min-mem to the special value 0)
and set dom0's memory footprint on the Xen commandline (dom0_mem=) instead.
This means dom0 starts off the right size for your particular configuration
and also that you won't confuse dom0's memory manager with the shrinking.
Cheers,
Mark
> xm list gives:
>
> Name ID Mem VCPUs State
> Time(s)
> Domain-0 0 932 1 r-----
> 94.2
>
> /etc/xen/fedora.fc6.cse:
>
> kernel = "/boot/vmlinuz-2.6.21-6.fc7xen"
> ramdisk = "/boot/initrd-2.6.21-6.fc7xen.img"
> root="/dev/sda1 ro"
> memory = 128
> name = "fedora.fc6"
> vifs = [ '' ]
> dhcp = "dhcp"
> disk = ['tap:aio://etc//xen//rpath.img,sda1,w']
> extra = "selinux=0 3"
> access_control = ['policy=dept,label=CSE']
>
>
> Using the binaries of yum install xen kernel-xen I am able to start the
> domain using the same config file.
>
> Thanks,
> Hayawardh
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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