Re: [Xen-users] xl devd won't start in DomU: failed to get own domid

[Rüdiger Otte <ruediger.otte@xxxxxxx>]

On Mon, 25 Apr 2016 11:11:47 +0200
Roger Pau Monné wrote:

> On Sun, Apr 24, 2016 at 01:41:34PM +0200, Rüdiger Otte wrote:
> > Hi,
> > 
> > I'm successfully running my debian system with Xen 4.4 for more
> > than two years now. When trying to upgrade to the recent 4.6
> > release I ran into a problem with the network driver domain.
> > 
> > As Xen 4.6 requires devd to run in a driver domain, I tried to
> > start it there but it fails:
> > 
> > root@svc-fw:~# xl devd -F
> > libxl: error: libxl.c:3864:libxl_device_events_handler: unable to
> > get domain id
> > 
> > Strange thing is that 'xenstore-read domid' outputs the domid
> > without any problems.
> 
> It is indeed quite weird, xl does exactly the same as
> 'xenstore-read domid' AFAICT.
> 
> Can you paste the configuration file of your driver domain? Also,
> do you have driver_domain=1 in your configuration file? (although
> AFAICT the error for not having driver_domain=1 should be different
> than the one you are getting).

I hadn't driver_domain=1 in the configuration, but adding it didn't
changed anything:

root@svc-fw:~# xl devd -F
libxl: error: libxl.c:1972:libxl__get_domid: failed to get own domid
(domid)
libxl: error: libxl.c:4553:libxl_device_events_handler: unable to get
domain id


xl.cfg:

name = 'svc-fw'
uuid = 'fc2c7c06-c301-4f6d-9862-d7357eacccda'
disk = [ '/xen/disk-image/svc-fw-debian.img,raw,hda,w' , 
       ]
bootloader = 'pygrub'
extra = 'iommu=soft'
cpus = "0-1"
vcpus = 1
cpu_weight = 64
memory = 256
device_model_version = 'qemu-xen'
device_model_override = '/usr/bin/qemu-system-x86_64'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'destroy'
driver_domain = 1
pci = [ '02:00.0' ]


The domain is running with Debian Wheezy with Xen packages and
dependencies from Jessie / Stretch.

Ruediger

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