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

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Feb 16, 2010 at 03:11:16AM +0100, Olivier B. wrote:
> Pasi Kärkkäinen a écrit :
>> On Fri, Jan 29, 2010 at 03:31:10PM +0100, Olivier B. wrote:
>>   
>>> Hi,
>>>
>>> I tried to upgrade my dom0 kernel from 
>>> 2.6.31.6-dae-dom0-00751-g60e0545  to 2.6.31.6-dae-dom0-00757-ge65323d 
>>> ; and domU doesn't start anymore.
>>>
>>> I obtain this error message :
>>>     
>>>> root! noburo:/var/log/xen# time xm create /etc/xen/hel.cfg
>>>> Using config file "/etc/xen/hel.cfg".
>>>> Error: Device 0 (vif) could not be connected. Hotplug scripts not   
>>>>       
>>> working.
>>>     
>>>> real    1m41.491s
>>>> user    0m0.116s
>>>> sys    0m0.056s
>>>>       
>>> And the error is triggered after 100 seconds...
>>>
>>> I use Xen 3.4.2 (Debian amd64) in bridge mode, and a 2.6.31.12 
>>> vanilla  pv_ops kernel.
>>>
>>> In xen-hotplug.log I have only this line : Nothing to flush.
>>>
>>> And in xend.log I found that :
>>> [2010-01-29 15:26:12 6213] DEBUG (DevController:139) Waiting for 
>>> devices  vif.
>>> [2010-01-29 15:26:12 6213] DEBUG (DevController:144) Waiting for 0.
>>> [2010-01-29 15:26:12 6213] DEBUG (DevController:629)   
>>> hotplugStatusCallback /local/domain/0/backend/vif/5/0/hotplug-status.
>>> [2010-01-29 15:27:52 6213] DEBUG (XendDomainInfo:2732)   
>>> XendDomainInfo.destroy: domid=5
>>>
>>>
>>>
>>> Is there a bug in last pv_ops dom0 kernel, or have I something to fix 
>>> in  my setup ?
>>>
>>>     
>>
>> Do you have netback driver/module loaded?
>>
>> Do you have udev installed? Start "udevmonitor" before you start the 
>> guest.. do you see hotplug events?
>>
>> -- Pasi
>>
>>   
> Sorry, I didn't your answer before... So if I start "udevadm monitor", I  
> obtain :
>
> udevmonitor will print the received events for:
> UDEV the event which udev sends out after rule processing
> UEVENT the kernel uevent
>
> UEVENT[1266285891.062392] add      /devices/vbd-2-2048 (xen-backend)
> UDEV  [1266285891.064356] add      /devices/vbd-2-2048 (xen-backend)
> UEVENT[1266285891.097244] add      /devices/vif-2-0 (xen-backend)
> UDEV  [1266285891.098725] add      /devices/vif-2-0 (xen-backend)
> UEVENT[1266285891.116060] add      /devices/vif-2-0/net/vif2.0 (net)
> UEVENT[1266285891.118280] online   /devices/vif-2-0 (xen-backend)
> UDEV  [1266285891.125190] add      /devices/vif-2-0/net/vif2.0 (net)
> UDEV  [1266285891.127347] online   /devices/vif-2-0 (xen-backend)
> UEVENT[1266285891.288098] add      /devices/console-2-0 (xen-backend)
> UDEV  [1266285891.289979] add      /devices/console-2-0 (xen-backend)
> UEVENT[1266285891.347288] change   /devices/virtual/block/drbd2 (block)
> UEVENT[1266285891.375061] add      /kernel/uids/65534 (uids)
> UDEV  [1266285891.376787] add      /kernel/uids/65534 (uids)
> UDEV  [1266285891.477763] change   /devices/virtual/block/drbd2 (block)
> UEVENT[1266285892.496161] remove   /kernel/uids/65534 (uids)
> UDEV  [1266285892.497624] remove   /kernel/uids/65534 (uids)
>
> then some "noise" (I suppose) :
> UEVENT[1266285915.289407] add      /kernel/uids/101 (uids)
> UDEV  [1266285915.289918] add      /kernel/uids/101 (uids)
> UEVENT[1266285916.320644] remove   /kernel/uids/101 (uids)
> UDEV  [1266285916.322143] remove   /kernel/uids/101 (uids)
> UEVENT[1266285975.204011] add      /kernel/uids/101 (uids)
> UDEV  [1266285975.204632] add      /kernel/uids/101 (uids)
> UEVENT[1266285976.236637] remove   /kernel/uids/101 (uids)
> UDEV  [1266285976.238076] remove   /kernel/uids/101 (uids)
>
> and after 100 seconds :
> UEVENT[1266285991.909492] remove   /devices/console-2-0 (xen-backend)
> UDEV  [1266285991.911456] remove   /devices/console-2-0 (xen-backend)
> UEVENT[1266285991.945058] remove   /devices/vbd-2-2048 (xen-backend)
> UDEV  [1266285991.946743] remove   /devices/vbd-2-2048 (xen-backend)
> UEVENT[1266285991.948761] offline  /devices/vif-2-0 (xen-backend)
> UDEV  [1266285991.950257] offline  /devices/vif-2-0 (xen-backend)
> UEVENT[1266285991.976885] remove   /devices/vif-2-0/net/vif2.0 (net)
> UEVENT[1266285991.989443] remove   /devices/vif-2-0 (xen-backend)
> UEVENT[1266285992.076919] change   /devices/virtual/block/drbd2 (block)
> UDEV  [1266285992.111812] change   /devices/virtual/block/drbd2 (block)
>
> I also update my kernel to the 00776-gce7f50d version and have the same  
> problem.
>
> For the netback module, I have this entries in my dom0 .config file :
> > CONFIG_XEN_NETDEV_BACKEND=y
>

Can you paste your /etc/xen/<guest> cfgfile, thanks.

-- Pasi


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users