Editing Demand paging (section)

==Disadvantages==
* Individual programs face extra latency when they access a page for the first time.
* Low-cost, low-power [[embedded system]]s may not have a [[memory management unit]] that supports page replacement.
* Memory management with [[page replacement algorithm]]s becomes slightly more complex.
* Possible security risks, including vulnerability to [[timing attack]]s; see {{cite conference |last=Percival |first=Colin |date=2005-05-13 |title=Cache missing for fun and profit |conference=BSDCan 2005 |url=http://css.csail.mit.edu/6.858/2014/readings/ht-cache.pdf}} (specifically the virtual memory attack in section 2).
*[[Thrashing (computer science)|Thrashing]] which may occur due to repeated page faults.