Dear Maintainer,

looks like virt-manager having problems closing qemu+ssh property.
If such a connection is used there will always remain a ssh zombie process if
the connection is closed.
Simplest way to reproduce this just add a new connection within virt-manager.
Select QEMU/KVM as hypervisor and check the "Connect to remote host" Box.
Choose localhost as hostname.
Virt-manager will automatically connect via ssh to the local host. After
closing this connection there will be left a zombie ssh process. This process
will remain until virt-manager is closed.
As this will happen to all qemu+ssh connections after connecting and
disconnecting to several virtual machines via the graphical  console there will
remain a lot of zombie processes.

Regards
Jan Sperling