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

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

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.


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