Bus error vs Segmentation fault

Question

Difference between a bus error and a segmentation fault? Can it happen that a program gives a seg fault and stops for the first time and for the second time it may give a bu

Answer 1

I assume you're talking about the SIGSEGV and SIGBUS signals defined by Posix.

SIGSEGV occurs when the program references an invalid address. SIGBUS is an implementation-defined hardware fault. The default action for these two signals is to terminate the program.

The program can catch these signals, and even ignore them.