Program received signal SIGSEGV: Segmentation fault - invalid memory reference

[aerosky-689]

when I use rans for 2d or 3d, proprocess of mesh can run normally, however, subsequently, some problem occur at the
latter part of it, finally,program terminate abnormally.The error is as follow.

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
#0 0x2b39e1b185ef in ???
#1 0x4ec232 in ???
#2 0x58d54c in ???
#3 0x5eed0d in ???
#5 0x6126ce in ???
#6 0x4261ac in ???
#7 0x2b39e3a4e504 in ???
#8 0x42784b in ???
#9 0xffffffffffffffff in ???
srun: error: cas203: task 30: Segmentation fault