rasort() dying

[Andrew Pollock]

Hi,

Sometimes when using rasort() to sort a fair bit of data, it exits with 
"Terminated" and a dmesg shows "Out of Memory: Killed process n 
(rasort).", where "n" is the PID of rasort(). I presume that the Linux 
kernel has some sort of memory exhaustion protection?

Is this a limitation of rasort with large datasets, or does it have a 
memory leak? My ulimit settings have pretty much everything set to 
unlimited.

Andrew