Okay, So I'm running Maple 11 on a Mac with 4 gig of RAM. However my mserver keeps crashing due to running out of memory. The intuitive solution to this is obviously to increase the datalimit through kernelopts, when I try to do this I am informed that I can't exceed the hard limit, i.e.: >kernelopts(datalimit = 409601); Error, cannot raise the datalimit above the hard limit As we've already established I've got rather more memory available than that and it doesn't seem to be restricted by the unix kernel: ulimit -a core file size (blocks, -c) 0