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[Xen-users] Error: Device 0 (vif) could not be connected. Hotplug scripts not working.

To: xen-users@xxxxxxxxxxxxxxxxxxx
From: Muriel <muriel.cabianca@xxxxxxx>
Date: Tue, 21 Jul 2009 17:22:27 +0200
Delivery-date: Tue, 21 Jul 2009 08:23:24 -0700
List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi all,
when i create a guest OS i am getting this error:
Error: Device 0 (vif) could not be connected. Hotplug scripts not working.

I have looked for a possible solution without success.

The sistem is a Centos 5.2 x86_64, the xen version is 3.4, the dom0kernel is 2.6.27.19-5 (from xensource).

The domU is a Centos 5.3 x86_64, kernel 2.6.18-128.1.6.el5xen

xend-config.sxp:
(xend-unix-server yes)
(xend-relocation-server yes)

(network-script 'network-bridge bridge=eth0') #i have specified'bridge=eth0 for test

(vif-script 'vif-bridge bridge=eth0')
(dom0-min-mem 196)
(enable-dom0-ballooning yes)
(dom0-cpus 0)
(vncpasswd '')


the domU config file:
bootloader = '/usr/bin/pygrub'
memory = 256
name = "blade_test"
vcpus = 2
vif = [ 'bridge=eth0' ] #doesn't work vif = []
dhcp="dhcp"
disk = [ 'tap:aio:/home/xen/blade8_disk,xvda1,w!' ]
vnc         = '0'
vncviewer   = '0'
stdvga      = '0'
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'preserve'
extra = "3"


udev:

root 682 0.0 0.0 12992 1172 ? S<s 16:41 0:00/sbin/udevd -d


brctl show:
bridge name     bridge id               STP enabled     interfaces

eth0 8000.0022649c123a no peth0(loglevelDEBUG)

When i create the domU i see the grub console, then i choose a kerneland the console hangs.

udevmonitor say:
UEVENT[1248188758.795432] add@/devices/xen-backend/tap-3-51713
UDEV  [1248188758.796432] add@/devices/xen-backend/tap-3-51713
UEVENT[1248188758.810433] change@/devices/xen-backend/tap-3-51713
UEVENT[1248188758.811433] add@/block/backdevb
UEVENT[1248188758.811433] add@/class/bdi/253:1
UDEV  [1248188758.812433] add@/class/bdi/253:1
UEVENT[1248188758.833433] add@/devices/xen-backend/vif-3-0
UDEV  [1248188758.836433] add@/devices/xen-backend/vif-3-0
UEVENT[1248188758.837433] add@/class/net/vif3.0
UEVENT[1248188758.837433] online@/devices/xen-backend/vif-3-0
UEVENT[1248188758.920435] add@/devices/xen-backend/console-3-0
UDEV  [1248188758.922435] add@/devices/xen-backend/console-3-0
UDEV  [1248188759.000437] change@/devices/xen-backend/tap-3-51713
UDEV  [1248188759.031438] add@/block/backdevb
UDEV  [1248188759.039438] online@/devices/xen-backend/vif-3-0
UDEV  [1248188759.042438] add@/class/net/vif3.0


brctl show:
bridge name     bridge id               STP enabled     interfaces
eth0            8000.0022649c123a       no                 peth0

vif3.0

ifconfig vif3.0Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF

         inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:6573 overruns:0 carrier:0
         collisions:0 txqueuelen:32
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)


The xend.log:

[2009-07-21 17:05:55 9102] DEBUG (XendDomainInfo:92)XendDomainInfo.create(['vm', ['name', 'blade_test'], ['memory', 256],['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_crash','preserve'], ['vcpus', 2], ['on_xend_start', 'ignore'], ['on_xend_stop','ignore'], ['bootloader', '/usr/bin/pygrub'], ['bootloader_args', ''],['image', ['linux', ['ip', ':127.0.255.255::::eth0:dhcp'], ['videoram',4], ['args', '3']]], ['s3_integrity', 1], ['device', ['tap', ['uname','tap:aio:/home/xen/blade8_disk'], ['dev', 'xvda1'], ['mode', 'w!']]],['device', ['vif', ['bridge','eth0']]]])[2009-07-21 17:05:55 9102] DEBUG (XendDomainInfo:2295)XendDomainInfo.constructDomain[2009-07-21 17:05:55 9102] DEBUG (balloon:166) Balloon: 263864 KiB free;need 4096;done.[2009-07-21 17:05:55 9102] DEBUG (XendDomain:452) Adding Domain:3[2009-07-21 17:05:55 9102] DEBUG (XendDomainInfo:2496)XendDomainInfo.initDomain: 3256[2009-07-21 17:05:55 10888] DEBUG (XendBootloader:113) Launchingbootloader as ['/usr/bin/pygrub', '--args=ip=:127.0.255.255::::eth0:dhcp3', '--output=/var/run/xend/boot/xenbl.25136','/home/xen/blade8_disk'].[2009-07-21 17:05:58 9102] DEBUG (XendDomainInfo:2520)_initDomain:shadow_memory=0x0, memory_static_max=0x10000000,memory_static_min=0x0.[2009-07-21 17:05:58 9102] DEBUG (balloon:166) Balloon: 263740 KiB free;need 263168;done.[2009-07-21 17:05:58 9102] INFO (image:173) buildDomain os=linux dom=3vcpus=2[2009-07-21 17:05:58 9102] DEBUG (image:661) domid =3[2009-07-21 17:05:58 9102] DEBUG (image:662) memsize =256[2009-07-21 17:05:58 9102] DEBUG (image:663) image =/var/run/xend/boot/boot_kernel.jUkXPI[2009-07-21 17:05:58 9102] DEBUG (image:664) store_evtchn =1[2009-07-21 17:05:58 9102] DEBUG (image:665) console_evtchn =2[2009-07-21 17:05:58 9102] DEBUG (image:666) cmdline = roroot=/dev/sda1 console=xvc0 ip=:127.0.255.255::::eth0:dhcp3[2009-07-21 17:05:58 9102] DEBUG (image:667) ramdisk =/var/run/xend/boot/boot_ramdisk.Z_Aa4S[2009-07-21 17:05:58 9102] DEBUG (image:668) vcpus =2[2009-07-21 17:05:58 9102] DEBUG (image:669) features=[2009-07-21 17:05:58 9102] DEBUG (image:670) flags =0[2009-07-21 17:05:58 9102] INFO (XendDomainInfo:2159) createDevice: tap: {'bootable': 1, 'uname': 'tap:aio:/home/xen/blade8_disk', 'mode':'w!', 'dev': 'xvda1', 'uuid':'bf7c579e-7a61-9b8f-ff83-7764745e776a'}[2009-07-21 17:05:58 9102] DEBUG (DevController:95) DevController:writing {'virtual-device': '51713', 'device-type': 'disk', 'protocol':'x86_64-abi', 'backend-id': '0', 'state': '1', 'backend':'/local/domain/0/backend/tap/3/51713'} to/local/domain/3/device/vbd/51713.[2009-07-21 17:05:58 9102] DEBUG (DevController:97) DevController:writing {'domain': 'blade_test', 'frontend':'/local/domain/3/device/vbd/51713', 'uuid':'bf7c579e-7a61-9b8f-ff83-7764745e776a', 'bootable': '1', 'dev': 'xvda1','state': '1', 'params': 'aio:/home/xen/blade8_disk', 'mode': 'w!','online': '1', 'frontend-id': '3', 'type': 'tap'} to/local/domain/0/backend/tap/3/51713.[2009-07-21 17:05:58 9102] INFO (XendDomainInfo:2159) createDevice: vif: {'bridge': 'eth0', 'mac': '00:16:3e:3e:73:d9', 'uuid':'31fff34e-05e9-4ef0-65b3-c9d25a654ffb'}[2009-07-21 17:05:58 9102] DEBUG (DevController:95) DevController:writing {'mac': '00:16:3e:3e:73:d9', 'handle': '0', 'protocol':'x86_64-abi', 'backend-id': '0', 'state': '1', 'backend':'/local/domain/0/backend/vif/3/0'} to/local/domain/3/device/vif/0.[2009-07-21 17:05:58 9102] DEBUG (DevController:97) DevController:writing {'bridge': 'eth0', 'domain': 'blade_test', 'handle': '0','uuid': '31fff34e-05e9-4ef0-65b3-c9d25a654ffb', 'script':'/etc/xen/scripts/vif-bridge bridge=eth0', 'mac': '00:16:3e:3e:73:d9','frontend-id': '3', 'state': '1', 'online': '1', 'frontend':'/local/domain/3/device/vif/0'} to /local/domain/0/backend/vif/3/0.[2009-07-21 17:05:58 9102] DEBUG (XendDomainInfo:3051) Storing VMdetails: {'on_xend_stop': 'ignore', 'shadow_memory': '0', 'uuid':'af2582d3-8a73-c57e-328d-e5b23c84fedc', 'on_reboot': 'restart','start_time': '1248188758.83', 'on_poweroff': 'destroy','bootloader_args': '', 'on_xend_start': 'ignore', 'on_crash':'preserve', 'xend/restart_count': '0', 'vcpus': '2', 'vcpu_avail': '3','bootloader': '/usr/bin/pygrub', 'image': "(linux (kernel ) (args'ip=:127.0.255.255::::eth0:dhcp 3') (videoram 4) (notes (FEATURES'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel')(VIRT_BASE 18446744071562067968) (GUEST_VERSION 2.6) (PADDR_OFFSET18446744071562067968) (GUEST_OS linux) (HYPERCALL_PAGE18446744071564189696) (LOADER generic) (ENTRY 18446744071564165120)(XEN_VERSION xen-3.0)))", 'name': 'blade_test'}[2009-07-21 17:05:58 9102] DEBUG (XendDomainInfo:1621) Storing domaindetails: {'console/ring-ref': '4252968', 'image/entry':'18446744071564165120', 'console/port': '2', 'store/ring-ref':'4252969', 'image/loader': 'generic', 'vm':'/vm/af2582d3-8a73-c57e-328d-e5b23c84fedc','control/platform-feature-multiprocessor-suspend': '1','image/guest-os': 'linux','cpu/1/availability': 'online','image/features/writable-descriptor-tables': '1', 'image/virt-base':'18446744071562067968', 'memory/target': '262144','image/guest-version': '2.6', 'image/features/supervisor-mode-kernel':'1', 'console/limit': '1048576', 'image/paddr-offset':'18446744071562067968', 'image/hypercall-page': '18446744071564189696','cpu/0/availability': 'online', 'image/features/pae-pgdir-above-4gb':'1', 'image/features/writable-page-tables': '1', 'console/type':'xenconsoled', 'image/features/auto-translated-physmap': '1', 'name':'blade_test', 'domid': '3', 'image/xen-version': 'xen-3.0','store/port': '1'}[2009-07-21 17:05:58 9102] DEBUG (DevController:95) DevController:writing {'protocol': 'x86_64-abi', 'state': '1', 'backend-id': '0','backend': '/local/domain/0/backend/console/3/0'} to/local/domain/3/device/console/0.[2009-07-21 17:05:58 9102] DEBUG (DevController:97) DevController:writing {'domain': 'blade_test', 'frontend':'/local/domain/3/device/console/0', 'uuid':'bfa86a07-8c0e-2e76-45d4-d7d48564d955', 'frontend-id': '3', 'state':'1', 'location': '2', 'online': '1', 'protocol': 'vt100'} to/local/domain/0/backend/console/3/0.[2009-07-21 17:05:58 9102] DEBUG (DevController:139) Waiting for devicesvif.[2009-07-21 17:05:58 9102] DEBUG (XendDomainInfo:1708)XendDomainInfo.handleShutdownWatch

[2009-07-21 17:05:58 9102] DEBUG (DevController:144) Waiting for 0.

[2009-07-21 17:05:58 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status.[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2723)XendDomainInfo.destroy: domid=3[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2198) Destroying devicemodel

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2205) Releasing devices
[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2218) Removing vif/0

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:1133)XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2218) Removing vbd/51713

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:1133)XendDomainInfo.destroyDevice: deviceClass = tap, device = vbd/51713

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:2218) Removing console/0

[2009-07-21 17:07:38 9102] DEBUG (XendDomainInfo:1133)XendDomainInfo.destroyDevice: deviceClass = console, device = console/0

[2009-07-21 17:07:39 9102] DEBUG (XendDomainInfo:2203) No device model
[2009-07-21 17:07:39 9102] DEBUG (XendDomainInfo:2205) Releasing devices

[2009-07-21 17:07:39 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status.[2009-07-21 17:07:39 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status.[2009-07-21 17:07:39 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status.[2009-07-21 17:07:39 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/2/0/hotplug-status.[2009-07-21 17:07:39 9102] DEBUG (DevController:629)hotplugStatusCallback /local/domain/0/backend/vif/3/0/hotplug-status.

If i comment the line with vif = [] in domU config file the sistem bootcorrectly.



Any idea?

Thanks in advance,
Muriel


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