Segmentation fault when initializing the ocean component

[xlong@ncsu_edu]

The model was running well until recently I got a segmentation fault when it initialized the ocean component.I tried to use previous restarting files to re-run the model, and I also tried to rebuid the model, with no success.The initiallization stoped at :Transport Diagnostics Information_________________________________ Latitudinal Auxiliary Grid Choice is: ... based on flipped Southern Hemisphere latititude grid Transport diagnostics include:MOCN_HEATN_SALT  The following            6  regions will be included in the n_transport_reg = 2 transports:  Atlantic Ocean                     ( 6)  Mediterranean Sea                  ( 7)  Labrador Sea                       ( 8)  GIN Sea                            ( 9)  Arctic Ocean                       (10)   Hudson Bay                         (11)

I could not find no other clue in the log files except the ocean log file stop here.  Any suggestion is highly appreciated. Thanks