Segmentation Fault

In short: A program accessed an illegal memory area (exit code 139).

In more detail: Typical in C and C++.

In Depth

Possible causes

• Null pointer or freed memory.
• Buffer overflow.
• Faulty library.

Solutions

1. Find the spot with a debugger (gdb) and core dump.
2. Recompile with AddressSanitizer.
3. Check pointers and array bounds.

See also: C, C++, Library