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Segmentation Fault (lemmy.ml)

submitted 5 days ago by [email protected] to c/[email protected]

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[–] [email protected] 42 points 5 days ago (5 children)

You don't get segmentation faults if you don't have an MMU. That can certainly make debugging more interesting when your firmware starts overwriting memory that it shouldn't until it finally crashes.

[–] [email protected] 12 points 5 days ago* (last edited 5 days ago)

Even if you do have an MMU, there's no guarantee that you'll get a segmentation fault from a memory bug. You can still just get the weird side effects, if you fail to access the incorrect memory.

Undefined behaviour means exactly that. You have no idea what you could get.

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