[Pw_forum] Error:forrtl: severe (174): SIGSEGV, segmentation fault occurred

[Nitya Nath]

Dear PwScf Users,

I am getting this error while calculating band structure after scf with 
convergence.

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source                                                                                 
pw.x               40000000005D8710  Unknown               Unknown  
Unknown
pw.x               40000000005D8BF0  Unknown               Unknown  
Unknown
pw.x               40000000005F4A40  Unknown               Unknown  
Unknown
pw.x               400000000003C740  Unknown               Unknown  
Unknown

I am using itanium 4-cpu machine with 8GB RAM (2GB/CPU) and I have already 
tested examples.I have also tested for Fe case with FM case. I am using 
16 atoms (3 types) in my unit cell. Could you please tell me possibility 
of error?

with best regards.
Nitya