SIGFPE：此错误的浮点异常回溯：0x7F70C71AF7D7

Question

I use a Fortran 90 model under Ubuntu 14.04. The gfortran 95 compiler (gfortran 4:4.8.2-1ubuntu6) and the gcc 4:4.8.2-1ubuntu6 are installed by Ubuntu Software Center. After I ran the model I get the following error message:

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.
Backtrace for this error:
#0  0x7F70C71AF7D7
#1  0x7F70C71AFDDE
#2  0x7F70C68EAD3F
#3  0x7F70C6EB6913

Could someone explain me what these backtrace codes mean? How can I handle these errors?

Answer 1

Use the options -O -Wall -fcheck=all -g -fbacktrace during compilation and run the executable. If this does not provide the necessary information, try running your program under gdb and/or valgrind.

Answer 2

I had the same error, when I compiled a Fortran95 code. In my case, I just debugged my code. There was a wrong mathematical operation (division by zero). Once I fixed it, the compilation error was gone. Try to check your code for math error. I hope it can help you.