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xen-users
Re: [Xen-users] Error: Device 0 (vif) could not be connected. Hotplug sc
Olivier B. a écrit :
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
For example :
name = 'athena'
kernel = '/boot/vmlinuz-2.6.31.12-dae-xen'
ramdisk = '/boot/initrd.img-2.6.31.12-dae-xen'
memory = '1024'
root = 'root=/dev/mapper/vg--athena-root ro rootflags=data=writeback'
disk = [ 'drbd:athena-disk,sda,w' ]
vif = [ 'mac=02:00:00:00:04:3f' ]
extra = 'rootdelay=1 raid=noautodetect'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
Olivier
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