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[Xen-users] Why is the first domU created with domid = 2 instead of 1

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Why is the first domU created with domid = 2 instead of 1
From: "Haifeng He" <hehaifeng2nd@xxxxxxxxx>
Date: Fri, 2 Nov 2007 15:45:14 -0700
Delivery-date: Fri, 02 Nov 2007 15:45:56 -0700
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I installed Xen(3.0.3) on Debian and created a guest OS kernel using
I can create domU successfully but I noticed that the domid I got for
the first domU
created is always 2, instead of 1 (dom0 has id 0). What's the reason for that?

I tried to trace the domain creating process and noticed that Dom0 does
try to create a domain with id 1 first but somehow it does domain creating
again and create domain with id = 2.

And one more weired thing, after I quit from domU, domU does not terminate
completely, i.e., it still appears when I run "xm list". I have to use
"xm destroy 2"
to stop it manually. What could the reason? Are these two problems related?

Here is my xen.cfg looks like.

kernel = "/boot/vmlinuz-2.6-xenU"
memory = 16
name = "domU"
vif = [ '' ]
dhcp = "dhcp"
disk = ['file:/xen/guest/domU.img,hda,w']
root = "/dev/hda ro"



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