The "Alarm clock" means that dumping something took more than 60 seconds. In this case the "something" seems to be the 7.4/modules/Protocols.pmod directory, which only contains one module. Is it conceivable that dumping this module actually takes more than 60 seconds on this system? When running with --verbose, how much time on average passes between each line is printed?
Other possibilities would be that there is an actual bug, either 1) Dumping hangs for some reason or 2) alarm() doesn't work correctly on this system You could try altering the alarm(60) in dump.pike, either increasong the timeout or removing the call altogether, to see what happens.
