Drone, expect, Linux, swarm: what do you think causes an error/crash like this?

[Paul E Johnson]

This may not be a swarm problem, but rather some expect or linux
problem, but...

I set some swarm models running under drone and after a few hours, on
the 216th model, it crashed and the stderrlog has this:

/home/pauljohn/swarm/PJProjects/OpinionFormation/MultiOccupancy/opinion:
Can't reopen pipe to command substitution (fd 8): No child processes
gcc: main.o: No such file or directory
gcc: ModelSwarm.o: No such file or directory
gcc: ObserverSwarm.o: No such file or directory
gcc: BatchSwarm.o: No such file or directory
gcc: WrappedListGrid2d.o: No such file or directory
gcc: ListWrapper.o: No such file or directory
gcc: Cell.o: No such file or directory
gcc: MyArguments.o: No such file or directory
gcc: NewEZGraph.o: No such file or directory
gcc: Attribute.o: No such file or directory
gcc: BatchRaster.o: No such file or directory
gcc: BatchColormap.o: No such file or directory
gcc: CountHeads.o: No such file or directory
gcc: Citizen.o: No such file or directory
gcc: MovingAverage.o: No such file or directory

I can restart drone and it seems OK, but I'm just curious about what
causes this one.
-- 
Paul E. Johnson                       email: address@hidden
Dept. of Political Science            http://lark.cc.ukans.edu/~pauljohn
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66045                FAX: (785) 864-5700

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