Re: [XenPPC] Re: 2 questions of creating domU

[Hao Yu <yuh@xxxxxxxxxx>]

Hi Jimi, Amos,

I checked a bit on the xend related scripts and found out that the message
in xend-debug.log : set stp status failed: Operation not supported , come
from

xend
   /etc/xen/scripts/network-bridge : 203
      /etc/xen/scripts/xen-network-common.sh : 115 ---> executing "brctl
      stp xenbr1 off"

It seems 'stp' related functionalities in brctl is not implemented or
supported ? 'brctl showstp xenbr1' also gives 'operation not supported'
message. Reading a bit about 'stp', it seems not fundamental for the
bridging to work, not sure if it is necessary for xen.

Regards,
Hao

Hao Yu

Commercial Scale Out
IBM T.J. Watson Research Center
1101 Kitchawan Rd/Route 134, Rm 36-019
Yorktown Heights, NY 10598-0218
914-945-1854, Email: yuh@xxxxxxxxxx


                                                                           
             Hao Yu/Watson/IBM                                             
                                                                           
             10/25/2006 05:38                                           To 
             PM                        Jimi Xenidis                        
                                       <jimix@xxxxxxxxxxxxxx>, Amos P      
                                       Waterland/Austin/IBM                
                                                                        cc 
                                       Robert W Wisniewski                 
                                       <bob@xxxxxxxxxxxxxx>, David M       
                                       Daly/Watson/IBM@IBMUS, Dilma M Da   
                                       silva/Watson/IBM@IBMUS, Doron       
                                       Shiloach/Watson/IBM@IBMUS, Edi      
                                       Shmueli/Watson/IBM@IBMUS, Jose      
                                       Moreira/Watson/IBM@IBMUS, Maria     
                                       Butrico/Watson/IBM@IBMUS,           
                                       XenPPC-devel                        
                                       <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx> 
                                                                   Subject 
                                       Re: [XenPPC] Re: 2 questions of     
                                       creating domU(Document link: Hao    
                                       Yu)                                 
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           



Hi Jimi, Amos,

The problem of 'domU network up' has not been solved. Today, we learned a
few things with help from Amos and Yi.

   The problem should be in the simplified init script, which did not bring
   up the vif . There are two indirect proof for this speculation:
      Here is the complete console message of booting Dom0. At the end, it
      says various virtual devices are not brought up (unused) (See
      attached file: cso83-boot-msgs-2006-10-25)
      when first time issue 'xend start' after Dom0 is booted, there is a
      message in /var/log/xen/xend-debug.log : set stp status failed:
      Operation not supported
   Yi encountered the same problem this morning, using the same ramdisk as
   Jimi's (we assume).

I attach the xend.log info here if you can recognize some problem here.
   xm create output: Error: Device 0 (vif) could not be connected. Backend
   device not found.
   output from 'XEND_DEBUG=1 xend start' : (See attached file: xend-msg2)
   configuration file: (See attached file: conf2)

In the meanwhile, we will see if we can quickly try an environment that is
close to what Jimi has.

Regards,
Hao

Hao Yu

Commercial Scale Out
IBM T.J. Watson Research Center
1101 Kitchawan Rd/Route 134, Rm 36-019
Yorktown Heights, NY 10598-0218
914-945-1854, Email: yuh@xxxxxxxxxx


                                                                           
             Jimi Xenidis                                                  
             <jimix@xxxxxxxxxx                                             
             .com>                                                      To 
                                       Hao Yu/Watson/IBM@IBMUS             
             10/25/2006 10:38                                           cc 
             AM                        Edi Shmueli/Watson/IBM@IBMUS, David 
                                       M Daly/Watson/IBM@IBMUS, Doron      
                                       Shiloach/Watson/IBM@IBMUS, Robert W 
                                       Wisniewski <bob@xxxxxxxxxxxxxx>,    
                                       Maria Butrico/Watson/IBM@IBMUS,     
                                       Dilma M Da silva/Watson/IBM@IBMUS,  
                                       XenPPC-devel                        
                                       <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx> 
                                       , Jose Moreira/Watson/IBM@IBMUS     
                                                                   Subject 
                                       Re: [XenPPC] Re: 2 questions of     
                                       creating domU                       
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





On Oct 25, 2006, at 8:10 AM, Hao Yu wrote:

> Jimi,
>
> Thanks to David who put matched xen tools in the xen/linux image,
> which
> solves the problem of memory configuration.
>

Thats good.

> I still can not set IP address from dhcp. For convenience, I post the
> configuration file here (See attached file: hao_edi_config); ifconfig
> output of dom0 after 'xend' started: (See attached file:
> ifconfig.out) ;
> and error message : "Error: Device 0 (vif) could not be connected.
> Backend
> device not found."
>
> I wonder if there is other environment setting we need to follow ? lib
> path, command path ?

this just works in my local disk environment and I'm pretty sure othe
local disk environments work as well.
Hollis, Tony are you able to create domain that have net access?

I have to say that this Linux/XM device config is not really my
current expertise, someone has to figure it out and know it.  I'll
try when I get some time unless someone else get to it first, until
then please be our expert :)

This may be a good question for <xen-devel@xxxxxxxxxxxxxxxxxxx> proper.

-JX

Attachment: cso83-boot-msgs-2006-10-25
Description: Binary data

Attachment: xend-msg2
Description: Binary data

Attachment: conf2
Description: Binary data

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