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

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2015-02-16 at 22:33 +0100, Kuba wrote:

Wei/Paul, I suppose this is the ioreq server related regression which
was discovered and discussed on xen-devel recently?

I'm still catching up on my email backlog from being away -- what's the
status of the fix?

> 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
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users



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