[Xen-users] DomU crashes with device_model_stubdomain_override=1 under Xen 4.5.0

[Kuba <kuba.0000@xxxxx>]

Dear List,

I'm trying to bring up an HVM domain with

device_model_stubdomain_override=1

under Xen 4.5.0, but the domain always crashes just after creation. 
Everything works flawlessly in Xen 4.4.x. Under 4.5.0 the domain starts 
just fine if I change that line to "device_model_stubdomain_override=0".
I'm using stub domains because they allow me to use storage driver domains.

# xl -vvv create consumer.conf &> create.log
# xl list
Name                        ID   Mem VCPUs      State   Time(s)
Domain-0                     0  6144     4     r-----      36.1
consumer                    10   255     1     ---sc-       0.0
consumer-dm                 11    32     1     -b----       0.1

There is no output in the VNC console.

The logs are from Xen compiled with debug ?= y, verbose ?= y and 
crash_debug ?= y, but the same happens with non-debug build.
My consumer.conf:

name='consumer'
device_model_stubdomain_override=1
builder='hvm'
vcpus=1
memory=256
disk=[
#'file:/root/fbsd.iso,xvda,r,devtype=cdrom'
]
boot='d'
pae=1
nx=1
videoram=16
stdvga=1
sdl=0
vnc=1
vnclisten="0.0.0.0"
vncdisplay=31
localtime=1
xen_platform_pci=1
on_crash="preserve"

I've ran out of ideas and I'd be very grateful for any advice on how to 
find the cause of this issue.
Best regards,
Kuba

Attachment: consumer.conf
Description: Text document

Attachment: create.log
Description: Text document

Attachment: qemu-dm-consumer.log
Description: Text document

Attachment: qemu-dm-consumer-dm.log
Description: Text document

Attachment: xl-consumer.log
Description: Text document

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