Comment # 36 on bug 1231323 from Stefan Hundhammer

About threads: There are a number of them:

yast2───Zypp-main─┬─{Zypp-main}
                  ├─{Zypp-main}
                  ├─{Zypp-main}
                  ├─{Zypp-main}
                  └─{Zypp-main}

I am confident that the Ruby interpreter and thus the YaST pkg-bindings are
running in the main thread. What part of libzypp goes to which zypp thread I
don't know.