~ $ LIBVIRT_DEBUG=1 virsh start winxp                                                                                                                                                         
Connecting to uri: qemu:///system                                                                                                                                                             
18:05:32.694: debug : virInitialize:287 : register drivers                                                                                                                                    
18:05:32.694: debug : virRegisterDriver:660 : registering Test as driver 0                                                                                                                    
18:05:32.694: debug : virRegisterNetworkDriver:560 : registering Test as network driver 0                                                                                                     
18:05:32.694: debug : virRegisterStorageDriver:591 : registering Test as storage driver 0                                                                                                     
18:05:32.694: debug : virRegisterDeviceMonitor:622 : registering Test as device driver 0                                                                                                      
18:05:32.694: debug : virRegisterDriver:660 : registering Xen as driver 1                                                                                                                     
18:05:32.694: debug : virRegisterDriver:660 : registering OPENVZ as driver 2
18:05:32.695: debug : virRegisterDriver:660 : registering remote as driver 3
18:05:32.695: debug : virRegisterNetworkDriver:560 : registering remote as network driver 1
18:05:32.695: debug : virRegisterStorageDriver:591 : registering remote as storage driver 1
18:05:32.695: debug : virRegisterDeviceMonitor:622 : registering remote as device driver 1
18:05:32.695: debug : virConnectOpenAuth:1089 : name=qemu:///system, auth=0x7f0053bb77e0, flags=0
18:05:32.695: debug : do_open:909 : name "qemu:///system" to URI components:
  scheme qemu
  opaque (null)
  authority (null)
  server (null)
  user (null)
  port 0
  path /system

18:05:32.695: debug : do_open:919 : trying driver 0 (Test) ...
18:05:32.695: debug : do_open:925 : driver 0 Test returned DECLINED
18:05:32.695: debug : do_open:919 : trying driver 1 (Xen) ...
18:05:32.695: debug : do_open:925 : driver 1 Xen returned DECLINED
18:05:32.695: debug : do_open:919 : trying driver 2 (OPENVZ) ...
18:05:32.695: debug : do_open:925 : driver 2 OPENVZ returned DECLINED
18:05:32.695: debug : do_open:919 : trying driver 3 (remote) ...
18:05:32.695: debug : remoteOpen:969 : Auto-remote UNIX socket
18:05:32.695: debug : doRemoteOpen:511 : proceeding with name = qemu:///system
18:05:32.695: debug : call:6462 : Doing call 66 (nil)
18:05:32.695: debug : call:6532 : We have the buck 66 0x7f0053c20010 0x7f0053c20010
18:05:32.696: debug : processCallRecvLen:6120 : Got length, now need 36 total (32 more)
18:05:32.696: debug : processCalls:6388 : Giving up the buck 66 0x7f0053c20010 (nil)
18:05:32.696: debug : call:6563 : All done with our call 66 (nil) 0x7f0053c20010
18:05:32.696: debug : call:6462 : Doing call 1 (nil)
18:05:32.696: debug : call:6532 : We have the buck 1 0x25d9b50 0x25d9b50
18:05:32.696: debug : processCallRecvLen:6120 : Got length, now need 28 total (24 more)
18:05:32.696: debug : processCalls:6388 : Giving up the buck 1 0x25d9b50 (nil)
18:05:32.696: debug : call:6563 : All done with our call 1 (nil) 0x25d9b50
18:05:32.696: debug : doRemoteOpen:822 : Adding Handler for remote events
18:05:32.696: debug : doRemoteOpen:829 : virEventAddHandle failed: No addHandleImpl defined. continuing without events.
18:05:32.696: debug : do_open:925 : driver 3 remote returned SUCCESS
18:05:32.696: debug : do_open:945 : network driver 0 Test returned DECLINED
18:05:32.696: debug : do_open:945 : network driver 1 remote returned SUCCESS
18:05:32.696: debug : do_open:967 : storage driver 0 Test returned DECLINED
18:05:32.696: debug : do_open:967 : storage driver 1 remote returned SUCCESS
18:05:32.696: debug : do_open:988 : node driver 0 Test returned DECLINED
18:05:32.696: debug : do_open:988 : node driver 1 remote returned SUCCESS
18:05:32.696: debug : virDomainLookupByName:1714 : conn=0x25d2760, name=winxp
18:05:32.696: debug : call:6462 : Doing call 23 (nil)
18:05:32.697: debug : call:6532 : We have the buck 23 0x25d9b50 0x25d9b50
18:05:32.701: debug : processCalls:6409 : Giving up the buck due to I/O error 23 0x25d9b50 (nil)
error: failed to get domain 'winxp'
error: server closed connection

18:05:32.701: debug : virConnectClose:1107 : conn=0x25d2760
18:05:32.701: debug : call:6462 : Doing call 2 (nil)
18:05:32.702: debug : call:6532 : We have the buck 2 0x25d9b50 0x25d9b50