virsh -c qemu:///session
libvirt: virConnectOpen (name=qemu:///session)
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: virInitialize ()
libvirt: do_open: proceeding with name=qemu:///session
libvirt: do_open: trying driver 0 (Test) ...
libvirt: do_open: driver 0 Test returned DECLINED
libvirt: do_open: trying driver 1 (QEMU) ...
libvirt: do_open: driver 1 QEMU returned DECLINED
libvirt: do_open: trying driver 2 (Xen) ...
libvirt: do_open: driver 2 Xen returned DECLINED
libvirt: do_open: trying driver 3 (remote) ...
libvirt: do_open: driver 3 remote returned SUCCESS
libvirt: do_open: network driver 0 Test returned DECLINED
libvirt: do_open: network driver 1 QEMU returned DECLINED
libvirt: do_open: network driver 2 remote returned SUCCESS