Description of problem:
I am running XEN hypervisor and libvirt from the openSuSe build Service.
Since I upgraded libvirt from 1.2.0 to 1.2.1 I cannot manage the VMs any more.
The hyperviser was unchanged.


Version-Release number of selected component (if applicable):

libvirt-daemon-driver-vbox-1.2.1-358.1.x86_64
libvirt-daemon-driver-interface-1.2.1-358.1.x86_64
libvirt-daemon-1.2.1-358.1.x86_64
libvirt-daemon-driver-secret-1.2.1-358.1.x86_64
libvirt-daemon-driver-lxc-1.2.1-358.1.x86_64
libvirt-glib-1_0-0-0.1.7-37.4.x86_64
libvirt-daemon-driver-storage-1.2.1-358.1.x86_64
libvirt-daemon-driver-network-1.2.1-358.1.x86_64
libvirt-daemon-driver-qemu-1.2.1-358.1.x86_64
libvirt-python-1.2.1-6.1.x86_64
libvirt-daemon-driver-nodedev-1.2.1-358.1.x86_64
libvirt-daemon-config-nwfilter-1.2.1-358.1.x86_64
libvirt-1.2.1-358.1.x86_64
libvirt-client-1.2.1-358.1.x86_64
libvirt-daemon-driver-uml-1.2.1-358.1.x86_64
libvirt-daemon-driver-nwfilter-1.2.1-358.1.x86_64
libvirt-daemon-xen-1.2.1-358.1.x86_64
libvirt-daemon-driver-xen-1.2.1-358.1.x86_64
libvirt-daemon-driver-libxl-1.2.1-358.1.x86_64



hera:/srv/domains/configs # xm info
host                   : hera.xxx
release                : 3.10.27-4-xen
version                : #1 SMP Sat Jan 18 11:52:33 CET 2014
machine                : x86_64
nr_cpus                : 16
nr_nodes               : 2
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2266
hw_caps                : bfebfbff:28000800:00000000:00003b00:009ce3bd:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 73717
free_memory            : 63957
free_cpus              : 0
max_free_memory        : 63957
max_para_memory        : 63953
max_hvm_memory         : 63795
xen_major              : 4
xen_minor              : 3
xen_extra              : .1_02-283.2
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 27302
xen_commandline        : dom0_mem=768M,max:768M
cc_compiler            : gcc (SUSE Linux) 4.7.2 20130108 [gcc-4_7-branch revision 195012
cc_compile_by          : abuild
cc_compile_domain      :
cc_compile_date        : Fri Dec 20 14:46:05 UTC 2013
xend_config_format     : 4



Actual results:

2014-01-19T11:50:44.253691+01:00 hera systemd[1]: Starting Virtualization daemon...
2014-01-19T11:50:44.256321+01:00 hera systemd[1]: Started Virtualization daemon.
2014-01-19T11:50:44.289430+01:00 hera libvirtd[5269]: libvirt version: 1.2.1
2014-01-19T11:50:44.290236+01:00 hera libvirtd[5269]: failed to load module /usr/lib64/libvirt/connection-driver/libvirt_driver_libxl.so /usr/lib64/libvirt/connection-driver/libvirt_driver_libxl.so: undefined symbol: libxl_node_bitmap_alloc
2014-01-19T11:50:44.299413+01:00 hera libvirtd[5269]: Unable to lookup SELinux process context: No such file or directory
2014-01-19T11:50:44.348550+01:00 hera libvirtd[5269]: Failed to get udev device for syspath '/sys/devices/virtual/dmi/id' or '/sys/class/dmi/id'
2014-01-19T11:50:44.565154+01:00 hera libvirtd[5269]: Configured security driver "none" disables default policy to create confined guests
2014-01-19T11:50:55.283529+01:00 hera libvirtd[5269]: Unable to issue hypervisor ioctl 3166208: Permission denied
2014-01-19T11:50:55.290703+01:00 hera libvirtd[5269]: last message repeated 6 times
2014-01-19T11:50:55.290555+01:00 hera libvirtd[5269]: internal error: failed to parse Xend response return code
2014-01-19T11:50:55.294313+01:00 hera libvirtd[5269]: internal error: failed to parse Xend response return code
2014-01-19T11:50:55.295551+01:00 hera libvirtd[5269]: End of file while reading data: Input/output error


hera:/srv/domains/configs # virsh edit template
error: failed to connect to the hypervisor
error: no valid connection
error: internal error: failed to parse Xend response return code



regards
Thomas Wagner