Did Angulimala end kamma? AN 6.63 says the Noble Eightfold Path ends kamma, as follows:


  And what is the cessation of kamma? From the cessation of contact is
  the cessation of kamma; and just this noble eightfold path — right
  view, right resolve, right speech, right action, right livelihood,
  right effort, right mindfulness, right concentration — is the path of
  practice leading to the cessation of kamma
  
  AN 6.63


MN 117 says "kamma" is something with effluents and results in acquisitions (of "self"), as follows:


  And what is the right view with effluents, siding with merit, resulting in acquisitions? 'There is what is given, what is offered,
  what is sacrificed. There are fruits &amp; results of good &amp; bad
  actions...


The term "acquisitions" ("upadhi") is described in MN 26 as follows:


  Subject to birth are these acquisitions, and one who is tied to them, infatuated with them, who has totally fallen for them, being subject
  to birth, seeks what is likewise subject to birth.


SN 12.66 describes "acquisitions" as follows:


  Acquisition has craving as its source, craving as its origin; it is born and produced from craving. When there is craving, acquisition
  comes to be; when there is no craving, acquisition does not come to
  be.


In the Angulimala Sutta, before attaining arahantship, Angulimala (the former mass murderer) was pardoned by King Pasenadi Kosala after learning Angulimala was rendered harmless by the Buddha. If he chose to, King Pasenadi Kosala could have had Angulimala executed for his former crimes. King Pasenadi Kosala obviously possessed this power of volition; to execute criminals. 

However, after attaining Arahantship (which includes the ending of the effluents and all self-views), Angulimala was stoned by certain people who knew of Angulimala's past murderous deeds, after which Angulimala declared the following: 


  Who once was heedless,  but later is not,    brightens the world     like the moon set free from a cloud.
  
  His evil-done deed  is replaced with skillfulness:   he brightens the world  like the moon set free from a cloud.
  
  Having done the type of kamma that would lead to many bad destinations, touched by the fruit of kamma, unindebted, I eat
  my food.
  
  The three knowledges     have been attained;     the Buddha's bidding,
           done.


Did Angulimala's attainment of arahantship end "kamma"? Or was it the stones thrown by unforgiving people that ended the kamma of Angulimala? If the later, are these stones thrown by unforgiving people more powerful in extinguishing kamma &amp; suffering than the Noble Eightfold Path?
A person ends making Kamma when he becomes an Arahant.
The Vipaka of his Kamma continues until he attains Parinibbana.