Re: [Xen-devel] Unable to create VM with nic device on Arndale

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2014-01-17 at 18:37 +0800, Dennis Lan (dlan) wrote:
> On Fri, Jan 17, 2014 at 5:46 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > On Fri, 2014-01-17 at 17:33 +0800, Dennis Lan (dlan) wrote:
> >> I'm also hit this problem, using xen-4.4.0-rc2 release,  on x86_64 machine.
> >> but I've tested with xen-4.3.1 the same settings, and have no problem
> >
> > Do you have a bridge configured? What is the output of "brctl show" and
> > "ifconfig -a" while the guest is running?
> >
> >> libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch 
> >> w=0x62acd8 wpath=/local/domain/0/backend/vif/5/0/state token=3/1: register 
> >> slotnum=3
> >> libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x62acd8 
> >> wpath=/local/domain/0/backend/vif/5/0/state token=3/1: event 
> >> epath=/local/domain/0/backend/vif/5/0/state
> >> libxl: debug: libxl_event.c:646:devstate_watch_callback: backend 
> >> /local/domain/0/backend/vif/5/0/state wanted state 2 still waiting state 1
> >> libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x62acd8 
> >> wpath=/local/domain/0/backend/vif/5/0/state token=3/1: event 
> >> epath=/local/domain/0/backend/vif/5/0/state
> >> libxl: debug: libxl_event.c:642:devstate_watch_callback: backend 
> >> /local/domain/0/backend/vif/5/0/state wanted state 2 ok
> >> libxl: debug: libxl_event.c:595:libxl__ev_xswatch_deregister: watch 
> >> w=0x62acd8 wpath=/local/domain/0/backend/vif/5/0/state token=3/1: 
> >> deregister slotnum=3
> >> libxl: debug: libxl_event.c:607:libxl__ev_xswatch_deregister: watch 
> >> w=0x62acd8: deregister unregistered
> >> libxl: debug: libxl_event.c:607:libxl__ev_xswatch_deregister: watch 
> >> w=0x62ad60: deregister unregistered
> >> libxl: error: libxl_create.c:1206:domcreate_attach_vtpms: unable to add 
> >> nic devices
> >
> > It seems to have waited for the backend to hit state 2, which happens,
> > and then it has failed for some reason, which I can't see here. It might
> > be worth adding some debug to the vif hotplug script to see if it is
> > running at all.
> >
> > Are you using the vif script's from Xen 4.4? Perhaps you have got some
> > stale 4.3.1 scripts sitting around?
> >
> > Ian.
> >
> I think there is no problem with bridge and script(exactly same as 4.4)

I still think the next step is to instrument the scripts and see what is
going on.

> btw, If I install xen-4.3.1, then everyting works fine.

Have you looked into the differences?

Ian.


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