/var/log/libvirt/libxl/instance-0000000d.log looks different , but contains errors again.
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: /etc/xen/scripts/vif-bridge online [-1] exited with error status 1
libxl: error: libxl_device.c:1085:device_hotplug_child_death_cb: script: ip link set vif10.0 name tap1c16ef17-68 failed
libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch w=0x7f4dd0793b80: deregister unregistered
libxl: error: libxl_create.c:1226:domcreate_attach_vtpms: unable to add nic devices
Created link due to previous report:-
ln -s /usr/lib/ xen-4.4/ bin/pygrub /usr/bin/pygrub
/var/log/ libvirt/ libxl/instance- 0000000d. log looks different , but contains errors again.
libxl: error: libxl_exec. c:118:libxl_ report_ child_exitstatu s: /etc/xen/ scripts/ vif-bridge online [-1] exited with error status 1 c:1085: device_ hotplug_ child_death_ cb: script: ip link set vif10.0 name tap1c16ef17-68 failed c:618:libxl_ _ev_xswatch_ deregister: watch w=0x7f4dd0793b80: deregister unregistered c:1226: domcreate_ attach_ vtpms: unable to add nic devices
libxl: error: libxl_device.
libxl: debug: libxl_event.
libxl: error: libxl_create.