Definitions for segmentation fault
seg·men·ta·tion fault

WiktionaryRate this definition:0.0 / 0 votes

1. segmentation faultnoun

   A software error that occurs when a program attempts to access a memory location that it is not permitted to access.

WikipediaRate this definition:0.0 / 0 votes

1. Segmentation fault

   In computing, a segmentation fault (often shortened to segfault) or access violation is a fault, or failure condition, raised by hardware with memory protection, notifying an operating system (OS) the software has attempted to access a restricted area of memory (a memory access violation). On standard x86 computers, this is a form of general protection fault. The operating system kernel will, in response, usually perform some corrective action, generally passing the fault on to the offending process by sending the process a signal. Processes can in some cases install a custom signal handler, allowing them to recover on their own, but otherwise the OS default signal handler is used, generally causing abnormal termination of the process (a program crash), and sometimes a core dump. Segmentation faults are a common class of error in programs written in languages like C that provide low-level memory access and few to no safety checks. They arise primarily due to errors in use of pointers for virtual memory addressing, particularly illegal access. Another type of memory access error is a bus error, which also has various causes, but is today much rarer; these occur primarily due to incorrect physical memory addressing, or due to misaligned memory access – these are memory references that the hardware cannot address, rather than references that a process is not allowed to address. Many programming languages may employ mechanisms designed to avoid segmentation faults and improve memory safety. For example, Rust employs an ownership-based model to ensure memory safety. Other languages, such as Lisp and Java, employ garbage collection, which avoids certain classes of memory errors that could lead to segmentation faults.

WikidataRate this definition:0.0 / 0 votes

1. Segmentation fault

   A segmentation fault, bus error or access violation is generally an attempt to access memory that the CPU cannot physically address. It occurs when the hardware notifies an operating system about a memory access violation. The OS kernel then sends a signal to the process which caused the exception. By default, the process receiving the signal dumps core and terminates. The default signal handler can also be overridden to customize how the signal is handled.

The New Hacker's DictionaryRate this definition:0.0 / 0 votes

1. segmentation fault

   [Unix] 1. [techspeak] An error in which a running program attempts to access memory not allocated to it and core dumps with a segmentation violation error. This is often caused by improper usage of pointers in the source code, dereferencing a null pointer, or (in C) inadvertently using a non-pointer variable as a pointer. The classic example is:    int i;    scanf ("%d", i);  /* should have used &i */ 2. To lose a train of thought or a line of reasoning. Also uttered as an exclamation at the point of befuddlement.

How to pronounce segmentation fault?

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Numerology

1. Chaldean Numerology

   The numerical value of segmentation fault in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of segmentation fault in Pythagorean Numerology is: 4

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Segmentation_Fault
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Segmentation_Fault
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=segmentation fault
4. ^ The New Hacker's Dictionary
   https://www.gutenberg.org/files/3008/3008-h/3008-h.htm#SegmentationFault