https://bugzilla.novell.com/show_bug.cgi?id=864716
https://bugzilla.novell.com/show_bug.cgi?id=864716#c61
--- Comment #61 from Luca Beltrame lbeltrame@kde.org 2014-07-17 15:36:26 UTC --- @Marcus http://www.freedesktop.org/software/polkit/docs/latest/PolkitSystemBusName.h...
Basically it uses DBus, to my understanding, to get the process instead of using the PID, which is open to race conditions (the objection raised by Sebastian).