Hi, For my scientific calculation, I use a software which was built on c++ platform. But When I run my code I see, after some time the calculation is stopped. But the same code is running fine on other Ubuntu machine. In my case, it is also showing stack smashing detected when the code is stopped automatically. In Google, I found out that it is happening due to stack overflow and the solution is to disable the stack protector by -fno-stack-protector and -fno-stack-protector-all. But I can't understand how to disable it from the terminal. Please help. -- Thanks and Regards, Debasis Das Ph.D. Scholar Department of Electrical Engineering IIT Bombay Mumbai - 400076