Re: [Xen-users] 10th Domain Error

[David H <davidh.davidh@xxxxxxxxx>]

The Wiki "http://wiki.xensource.com/xenwiki"; has useful information
like the following... :)

http://wiki.xensource.com/xenwiki/XenFaq#head-b4167b873a6b3a6657ecf9339c44e4a0692f8ada

4.4. When I start a 9th domain using a loop-back file as its virtual
disk why do I get "Error: vbd: Segment not found:
uname=file:/path/to/image"?

By default, Linux only allows up to 8 loop-back devices to be active.
You can increase this number by setting max_loop=32 (etc) on the
domain 0 kernel command line in Grub.



On 6/17/05, Michael Musson <musson@xxxxxxxxxxxxxxxxxxxx> wrote:
> All,
> 
> I'm trying to see how many Xen domains I can create at one time.  When I
> attempt to create my 10th domain I get the error:
> 
> Error: Error creating domain: vbd: Segment not found:
> uname=file:/root/xen/run/vnode29_deb3.1_1.img
> 
> Even though it's clearly there:
> 
> #ll /root/xen/run/vnode29_deb3.1_1.img
> -rw-r--r--  1 root root 104857600 Jun 17
> 14:29 /root/xen/run/vnode29_deb3.1_1.img
> 
> Has anyone seen this before?
> 
> -Michael
> 
> 
> ###########Setup###########
> 
> FC4 System
> Dom0 Kernel:  2.6.11-1.1369_FC4xen0
> DomU Kernel:  vmlinuz-2.6.11-1.1369_FC4xenU
> 
> xm list:
> Name              Id  Mem(MB)  CPU  State  Time(s)  Console
> Domain-0           0      123    0  r----    100.1
> vnode20            1       63    0  -b---     27.3    9601
> vnode21            2       63    0  -b---     26.8    9602
> vnode22            3       63    0  -b---     26.3    9603
> vnode23            4       63    0  -b---     26.0    9604
> vnode24            5       63    0  -b---     25.6    9605
> vnode25            6       63    0  -b---     25.4    9606
> vnode26            7       63    0  -b---     25.3    9607
> vnode27            8       63    0  -b---     24.8    9608
> 
> Domain Creation command:
> xm create  name="vnode29" kernel="/boot/vmlinuz-2.6.11-1.1369_FC4xenU"
> memory=64 disk='file:/root/xen/run/vnode29_deb3.1_1.img,sda1,w'
> root="/dev/sda1 rw" restart="onreboot" extra="VNODEIP=10.10.10.29
> SERVERIP=10.10.10.20 NODELIST= DOMNAME=vnode29 GATEWAY=10.10.10.99
> DNS=205.118.70.2"
> 
> 
> 
> 
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>

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