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Asked: 2026-05-11T17:17:51+00:00

Difference between a bus error and a segmentation fault? Can it happen that a

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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 bus error and exit ?

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  1. Editorial Team

    On most architectures I’ve used, the distinction is that:

    • a SEGV is caused when you access memory you’re not meant to (e.g., outside of your address space).
    • a SIGBUS is caused due to alignment issues with the CPU (e.g., trying to read a long from an address which isn’t a multiple of 4).
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