Re: [Xen-users] Problem with loopback device in xenU

[Andreas Seuss <mam04exx@xxxxxxxxxxxxxxxxxxxxxxx>]

Hello Jochen,

Jochen wrote:

>Hi!
>
>I´m a newbie in xen, but get 2 guest machines to work ;). In generall
>everything is working, and it´s a great thing to have different servers on
>one hardware.
>Unfortunally i have a problem in all my xen guest machines. The loopback
>device don´t start automaticly on boot time. When i type ifconfig lo i get
>the messages:
>
>lo        Link encap:Local Loopback
>          UP LOOPBACK RUNNING  MTU:16436  Metric:1
>          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>With ifconfig add 127.0.0.1 the loopback device is starting to work.
>Normally should it be started on boot timte, or? The linux is a Slackware
>10.1, also in the guest machines. The network config in generall is working,
>also the loopback device is compiled in the kernel (not as modul). Anybody
>any idea about this?
>
>Thanks 
>Jochen 
>  
>
Usually all interfaces are configured in /etc/network/interfaces.

# The loopback interface
auto lo
iface lo inet loopback

Maybe you just forgot it when settig up your domU? It does not sound
like anything serious if you are able to start it manually ;-)

Regards,

Andreas

>The output of xend.log and xend-debug.log is here:
>
>Xned.log:
>[2005-08-10 18:03:59 xend] INFO (console:94) Created console id=12 domain=16
>port=9616
>[2005-08-10 18:03:59 xend] DEBUG (XendDomainInfo:1130) Creating vbd dom=16
>uname=file:/xen/http_fs
>[2005-08-10 18:03:59 xend] DEBUG (blkif:63) exception looking up device
>number for sda5: [Errno 2] No such file or directory: '/dev/sda5'
>[2005-08-10 18:03:59 xend] DEBUG (blkif:155) Connecting blkif
><BlkifBackendInterface 16 0>
>[2005-08-10 18:03:59 xend] DEBUG (XendDomainInfo:1130) Creating vbd dom=16
>uname=file:/xen/http_swap_fs
>[2005-08-10 18:03:59 xend] DEBUG (blkif:63) exception looking up device
>number for sda6: [Errno 2] No such file or directory: '/dev/sda6'
>[2005-08-10 18:03:59 xend] DEBUG (blkif:155) Connecting blkif
><BlkifBackendInterface 16 0>
>[2005-08-10 18:03:59 xend] DEBUG (XendDomainInfo:1107) Creating vif dom=16
>vif=0 mac=aa:00:00:38:93:2f
>[2005-08-10 18:03:59 xend] INFO (XendRoot:112) EVENT> xend.console.create
>[12, 16, 9616]
>[2005-08-10 18:03:59 xend] INFO (XendRoot:112) EVENT> xend.domain.create
>['http', '16']
>[2005-08-10 18:03:59 xend] INFO (XendRoot:112) EVENT> xend.domain.unpause
>['http', '16']
>[2005-08-10 18:03:59 xend] DEBUG (blkif:203) Connecting blkif to event
>channel <BlkifBackendInterface 16 0> ports=13:3
>
>
>
>
>Xend-debug.log:
>recv_fe_interface_connect {'tx_shmem_frame': 115361, 'rx_shmem_frame':
>115360, 'handle': 0}
>{}
>VirqClient.virqReceived> 4
>vif-bridge down vif=vif11.0 domain=http mac=aa:00:00:5f:1a:66 bridge=xen-br0
>VIRTUAL MEMORY ARRANGEMENT:
> Loaded kernel: c0100000->c033a1c4
> Init. ramdisk: c033b000->c033b000
> Phys-Mach map: c033b000->c034b000
> Page tables:   c034b000->c034d000
> Start info:    c034d000->c034e000
> Boot stack:    c034e000->c034f000
> TOTAL:         c0000000->c0400000
> ENTRY ADDRESS: c0100000
>/dev/loop: Is a directory
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>/dev/loop: Is a directory
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>ioctl: LOOP_SET_FD: Device or resource busy
>vif-bridge up vif=vif12.0 domain=http mac=aa:00:00:40:c2:e1 bridge=xen-br0
>recv_fe_driver_status> {'status': 1}
>
>recv_fe_driver_status>
>
>recv_fe_interface_connect {'tx_shmem_frame': 83545, 'rx_shmem_frame': 83544,
>'handle': 0}
>{}
>{}
>VirqClient.virqReceived> 4
>vif-bridge down vif=vif12.0 domain=http mac=aa:00:00:40:c2:e1 bridge=xen-br0
>VirqClient.virqReceived> 4
>vif-bridge down vif=vif10.0 domain=kolab mac=aa:00:00:60:6a:b7
>bridge=xen-br0
>xend-debug.log lines 377-418/418 (END)
>
>
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>  
>


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