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[Xen-users] Dom 0 Memory

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Dom 0 Memory
From: Miguel Gómez <elmiguelonmakinon@xxxxxxxxx>
Date: Wed, 8 Jun 2005 17:00:23 +0200
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Reply-to: Miguel Gómez <elmiguelonmakinon@xxxxxxxxx>
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Hi everybody,
 I have a problem defining the domain 0 memory. I add these lines in the /boot/grub/menu.lst:

title           Xen 2.0 / XenLinux 2.6.11
root            (hd0,0)
kernel          /xen.gz dom0_mem=64000
module          /vmlinuz-2.6.11-xen0 root=/dev/hda3 ro console=tty0

My computer has 128 Mb of RAM, but if I use that value my machine crashes when I reboot it.

When I reboot my computer with dom0_mem=64000, boot with Xen, and execute top, I get that
I only have 59132k:

Tasks:  50 total,   3 running,  47 sleeping,   0 stopped,   0 zombie
Cpu(s): 76.3% us, 23.3% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.3% si
Mem:     59132k total,    54920k used,     4212k free,     5136k buffers
Swap:   498004k total,     2564k used,   495440k free,    13548k cached

So I don't really know if I have to set dom0_mem value to the total amount of memory that I
have on my system or It has to be only the memory that dom0_mem is gonna use and it's independient of the rest
of the domains memory.

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