Segmentation Fault while exporting 0 level data via MaxL on Linux

I am trying to export level 0 data from a maxl script on linux environment but i am running out via 'Segmentation Fault'. While I tried to test the same script from MaxL editor in EAS Console, it was running fine. I have EPM 11.1.2.2 on my machine.

ExportAllCubes.mxl (Maxl script):

spool on to "/difs17/essback/CURRENT/LOG/Export_$1_$2.log";

export database "$1"."$2" level0 data to data_file "/difs17/essback/CURRENT/Export_Lev0_$1_$2.txt";

alter system unload application "$1";

spool off;

logout;

exit;

I am calling this script on Linux box as:

bash-3.2$  /bin/ksh ${essmsh}

Essbase MaxL Shell 64-bit - Release 11.1.2 (ESB11.1.2.2.106B043)