Jose Rodriguez
2010-Feb-26 14:14 UTC
[Xen-users] Re: Error: Device 0 (vif) could not be connected.Hotplugscripts not working
Hello everyone!
I''m new with Xen and i''ve been dealing with the same error the
last week.
I''m pretty much lost, i don''t know what else to do so i ask
for your help.
In my case i installed Xen on a amd64 Pc, with Gentoo. I installed the
following packages: xen, xen-tools and xen-sources from the gentoo
repositories. I''m using 2.6.31-xen-r10 gentoo sources.
I first compiled the sources enabling the following options, for the Dom0:
Networking ---> Networking Options ---> [*] 802.1d Ethernet Bridging
Device Drivers ---> Xen ---> [*] Privileged Guest (domain 0)
---><*> Backend Driver Support
---><*> Block-device
backend
driver
---><*> Block-device tap
backend driver
---><*> Block-device tap
backend driver 2
---><*>Network-device backend
driver
---><*>Network-device loopback
driver
---><*>PCI-device backend driver
PCI backend mode
(virtual PCI) --->
---><*>TPM-device backend driver
---><*>SCSI backend driver
---><*>USB backend driver
--->[*] Disables serial ports
drivers
---><*>Export xen attributes in
sysfs
Xen version compatibility
(3.0.4 and later) --->
Devices Drivers ---> [*] Scrub memory before freeing it to Xen
Bus Options (PCI etc.) ---> [*] Xen PCI Frontend
<*> Support for PCI Hotplug
--->
Besides that i enabled several options for my disk, audio, video, NIC, etc.
For the DomU kernel i compiled without the Privileged Guest option, all the
backend options and Bus Options (PCI etc.) ---> [] PCI support and Device
Drivers ---> SCSI device support ---> - - SCSI device support . I selected
all frontend optiones.
I saved both kernel configurations in /boot, i named them dom0 and domU.
I restarted my pc, after adding the corresponding lines to my grub.conf, and
everything started fine.
Before starting Xen i modified the xend-config.sxp script adding the
following line and commenting this other,
#(network-script network-bridge)
(network-script ''network-bridge netdev=eth0'')
After that i start xen, everything works fine. I have a questions here:
shouldn''t i have a peth0 interface when i use de ifconfig command? It
only
shows eth0 and the loopback interface. If i add -a option it shows several
vif, veth and ifb interfaces plus a tunl0, gre0, eql, dummy and bond0
interface. Maybe that''s part of the problem i have.
Moving on, here is my .cfg file that i''m using for the virtual machine:
kernel = "/data/kernel-debian"
memory = ''512''
root = ''/dev/sda6 ro console=/dev/xvc0''
disk = [ ''file:/data/debian.5-0.x86.img,/dev/sda6,w'',
''file:/data/swap.img,/dev/sda5,w'' ]
name = ''debian''
#vif = [ ''type=ioemu,bridge=eth0'' ]
vif = [
''bridge=eth0,ip=192.168.123.100,mac=00:1d:72:57:9a:a5'']
#vif = [ ''bridge=xenbr0'' ]
#vif = []
#vif = ['''']
#dhcp = "dhcp"
on_poweroff = ''destroy''
on_reboot = ''restart''
on_crash = ''restart''
As you can see i''ve been playing w/ the vif option to see if something
works. Not success so far :(
I copied /boot/domU kernel to a directory, named /data. The .img i
downloaded it from http://stacklet.com/.
I built the swap partition with these commands
dd if=/dev/zero of=/data/xen/domains/swap.img bs=1M count=1k
mkswap /data/xen/domains/swap.img
I start the vm using xm create vm-debian.cfg -c but i always get Error:
Device 0 (vif) could not be connected. Hotplug scripts not working.
/var/log/xen/xen-hotplug.log show this
xenstore-read: couldn''t read path backend/vbd/2/2053/node
can''t add vif1.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif1.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif2.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/2/2053/node
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif2.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/2/2053/node
can''t add vif3.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/3/2053/node
/var/log/xen/xend-debug.log has this
cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host1/model: No such file or directory
cat: /sys/bus/scsi/devices/host1/type: No such file or directory
cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host2/model: No such file or directory
cat: /sys/bus/scsi/devices/host2/type: No such file or directory
cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host3/model: No such file or directory
cat: /sys/bus/scsi/devices/host3/type: No such file or directory
cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/vendor: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/model: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/type: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/rev: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/scsi_level: No such file or directory
/usr/lib64/python2.6/site-packages/xen/xend/XendAPI.py:544:
DeprecationWarning: object.__new__() takes no parameters return
object.__new__(cls, *args, **kwds)
/var/log/xen/xend.log has this
[2010-02-26 09:24:44 2337] DEBUG (XendDomainInfo:1709)
XendDomainInfo.handleShutdownWatch
[2010-02-26 09:24:44 2337] DEBUG (DevController:139) Waiting for devices
vif.
[2010-02-26 09:24:44 2337] DEBUG (DevController:144) Waiting for 0.
[2010-02-26 09:24:44 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:24 2337] DEBUG (XendDomainInfo:2732)
XendDomainInfo.destroy: domid=3
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2207) Destroying device
model
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2214) Releasing devices
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vif/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing console/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vbd/2054
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2054
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vbd/2053
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2053
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2212) No device model
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2214) Releasing devices
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/2/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/2/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
I read somewhere that it could be an udev problem: i updated
it...didn''t
work.
I installed hotplug from gentoo repositories, even though new kernels
versions have it...didn''t work.
Later, i''m gonna try using a different .img file...maybe it could be
the
problem, not sure. Hopefully w/ the nformation i gave someone could give a
clue where to start looking. If need more info for me, feel free to ask.
Sorry if i missed something.
Thanks in advance!! xD
>
>
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Mike Viau
2010-Feb-26 15:27 UTC
RE: [Xen-users] Re: Error: Device 0 (vif) could not be connected.Hotplugscripts not working
Jose Rodriguez wrote on 02-26-10:
Hello everyone!
I''m new with Xen and i''ve been dealing with the same error the
last week. I''m pretty much lost, i don''t know what else to do
so i ask for your help.
In my case i installed Xen on a amd64 Pc, with Gentoo. I installed the following
packages: xen, xen-tools and xen-sources from the gentoo repositories.
I''m using 2.6.31-xen-r10 gentoo sources.
I first compiled the sources enabling the following options, for the Dom0:
Networking ---> Networking Options ---> [*] 802.1d Ethernet Bridging
Device Drivers ---> Xen ---> [*] Privileged Guest (domain 0)
---><*> Backend Driver Support
---><*> Block-device
backend driver
---><*> Block-device tap
backend driver
---><*> Block-device tap
backend driver 2
---><*>Network-device backend
driver ---><*>Network-device
loopback driver
---><*>PCI-device backend driver
PCI backend mode (virtual
PCI) --->
---><*>TPM-device backend driver
---><*>SCSI backend driver
---><*>USB backend driver
--->[*] Disables serial ports drivers
---><*>Export xen attributes in
sysfs
Xen version compatibility (3.0.4
and later) --->
Devices Drivers ---> [*] Scrub memory before freeing it to Xen
Bus Options (PCI etc.) ---> [*] Xen PCI Frontend
<*> Support for PCI Hotplug
--->
*My backend driver support are compiled as modules, though I doubt this makes a
difference. Same applies for the Xen version compatibility you used.
Besides that i enabled several options for my disk, audio, video, NIC, etc.
For the DomU kernel i compiled without the Privileged Guest option, all the
backend options and Bus Options (PCI etc.) ---> [] PCI support and Device
Drivers ---> SCSI device support ---> - - SCSI device support . I selected
all frontend optiones.
I saved both kernel configurations in /boot, i named them dom0 and domU.
I restarted my pc, after adding the corresponding lines to my grub.conf, and
everything started fine.
Before starting Xen i modified the xend-config.sxp script adding the following
line and commenting this other,
#(network-script network-bridge)
(network-script ''network-bridge netdev=eth0'')
After that i start xen, everything works fine. I have a questions here:
shouldn''t i have a peth0 interface when i use de ifconfig command? It
only shows eth0 and the loopback interface. If i add -a option it shows several
vif, veth and ifb interfaces plus a tunl0, gre0, eql, dummy and bond0 interface.
Maybe that''s part of the problem i have.
*peth0 should show becasue the interface must still be up in order to work with
the xen bridge. In your case named eth1
Moving on, here is my .cfg file that i''m using for the virtual machine:
kernel = "/data/kernel-debian"
memory = ''512''
root = ''/dev/sda6 ro console=/dev/xvc0''
disk = [ ''file:/data/debian.5-0.x86.img,/dev/sda6,w'',
''file:/data/swap.img,/dev/sda5,w'' ]
name = ''debian''
#vif = [ ''type=ioemu,bridge=eth0'' ]
vif = [
''bridge=eth0,ip=192.168.123.100,mac=00:1d:72:57:9a:a5'']
#vif = [ ''bridge=xenbr0'' ]
#vif = []
#vif = ['''']
#dhcp = "dhcp"
on_poweroff = ''destroy''
on_reboot = ''restart''
on_crash = ''restart''
As you can see i''ve been playing w/ the vif option to see if something
works. Not success so far :(
I copied /boot/domU kernel to a directory, named /data. The .img i downloaded it
from http://stacklet.com/.
I built the swap partition with these commands
dd if=/dev/zero of=/data/xen/domains/swap.img bs=1M count=1k
mkswap /data/xen/domains/swap.img
I start the vm using xm create vm-debian.cfg -c but i always get Error: Device 0
(vif) could not be connected. Hotplug scripts not working.
/var/log/xen/xen-hotplug.log show this
xenstore-read: couldn''t read path backend/vbd/2/2053/node
can''t add vif1.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif1.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif2.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/2/2053/node
xenstore-read: couldn''t read path backend/vbd/1/2053/node
can''t add vif2.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/2/2053/node
can''t add vif3.0 to bridge eth0: Operation not supported
xenstore-read: couldn''t read path backend/vbd/3/2053/node
/var/log/xen/xend-debug.log has this
cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host1/model: No such file or directory
cat: /sys/bus/scsi/devices/host1/type: No such file or directory
cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host2/model: No such file or directory
cat: /sys/bus/scsi/devices/host2/type: No such file or directory
cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host3/model: No such file or directory
cat: /sys/bus/scsi/devices/host3/type: No such file or directory
cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/vendor: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/model: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/type: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/rev: No such file or directory
cat: /sys/bus/scsi/devices/target0:0:0/scsi_level: No such file or directory
/usr/lib64/python2.6/site-packages/xen/xend/XendAPI.py:544: DeprecationWarning:
object.__new__() takes no parameters return object.__new__(cls, *args, **kwds)
/var/log/xen/xend.log has this
[2010-02-26 09:24:44 2337] DEBUG (XendDomainInfo:1709)
XendDomainInfo.handleShutdownWatch
[2010-02-26 09:24:44 2337] DEBUG (DevController:139) Waiting for devices vif.
[2010-02-26 09:24:44 2337] DEBUG (DevController:144) Waiting for 0.
[2010-02-26 09:24:44 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:24 2337] DEBUG (XendDomainInfo:2732) XendDomainInfo.destroy:
domid=3
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2207) Destroying device model
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2214) Releasing devices
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vif/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing console/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vbd/2054
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2054
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2227) Removing vbd/2053
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:1134)
XendDomainInfo.destroyDevice: deviceClass = vbd, device = vbd/2053
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2212) No device model
[2010-02-26 09:26:25 2337] DEBUG (XendDomainInfo:2214) Releasing devices
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/2/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/2/0/hotplug-status.
[2010-02-26 09:26:25 2337] DEBUG (DevController:629) hotplugStatusCallback
/local/domain/0/backend/vif/3/0/hotplug-status.
I read somewhere that it could be an udev problem: i updated
it...didn''t work.
I installed hotplug from gentoo repositories, even though new kernels versions
have it...didn''t work.
* I wish I could provide better insight as to your "Device 0 (vif) could
not be connected.Hotplugscripts not working" error. I am finding that
getting the perfect kernel configuration is a daunting task myself.
Later, i''m gonna try using a different .img file...maybe it could be
the problem, not sure. Hopefully w/ the nformation i gave someone could give a
clue where to start looking. If need more info for me, feel free to ask.
Sorry if i missed something.
Thanks in advance!! xD
-M
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