When the squeezecenter_safe script gets a signal to stop the squeezecenter-binary it just send a kill to the binary and then immediately exits regardless how long time it takes for the squeezecenter-binary to quit. This means that the init script that uses squeezecenter_safe script will think that squeezecenter is always stopped immediately. There is a big risk that when doing an restart the init script will start a new squeezecenter-binary before the old one has exit.

The fix i quit simple just change the code

 function clean_up {
  # Kill the SqueezeCenter daemon if it is running
  kill $SLIMPID
  echo `date "+%F %H:%M:%S"` "squeezecenter_safe stopped." >> /var/log/squeezecenter/server.log
  exit
}

to

}function clean_up {
  # Kill the SqueezeCenter daemon if it is running
  kill $SLIMPID
  echo `date "+%F %H:%M:%S"` "squeezecenter_safe stopped." >> /var/log/squeezecenter/server.log
  wait $SLIMPID
  exit $?
}