LCARS in the 24th century probably doesn't have UNIX underpinnings, huh? Otherwise you could just "sudo kill -9" the holodeck before an out-of-control process vaporizes your personnel. Although leaving a bunch of zombie holodeck process could probably still cause huge problems.
It's looking like we lost one of Luke's lovies in the city yesterday. After 3.5 years of keeping track of that thing, I'm so glad we had 2 so we at least have 1 comfort item left. However, I'm not sure Luke will see it that way. :-/