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Computer fault caused by access to restricted memory
In computing, a segmentation fault (often shortened to segfault) or access violation is a failure condition raised by hardware with memory protection,
Segmentation_fault
Fault initiated by x86 processors due to an access violation
the errors are reported separately (e.g. segmentation fault for memory errors). In memory errors, the faulting program accesses memory that it should not
General_protection_fault
Error from a process accessing unmapped memory
is called an invalid page fault. The page fault handler in the operating system will then generally pass a segmentation fault to the offending process
Page_fault
AMD brand for microprocessors
vulnerability. Some early shipments of Ryzen 1000 series processors produced segmentation faults on some workloads on Linux, especially while compiling code with
Ryzen
Way to control memory access rights on a computer
attempt to access unauthorized memory results in a hardware fault, e.g., a segmentation fault, storage violation exception, generally causing abnormal termination
Memory_protection
Division of computer's primary memory into separately relocatable segments or sections
length of the segment. Otherwise, a hardware exception such as a segmentation fault is raised. Segments may also be used to implement virtual memory.
Memory_segmentation
Dynamic memory management in the C programming language
undefined behavior. This usually leads to crash (due to the resulting segmentation fault on the null pointer dereference), but there is no guarantee that a
C_dynamic_memory_allocation
Type of software bug
stack space each time, until the stack overflows, resulting in a segmentation fault. However, some compilers implement tail-call optimization, allowing
Stack_overflow
Value indicating that a referenced dataset is invalid or doesn't exist
attempted read or write from memory that is not mapped, triggering a segmentation fault or memory access violation. This may manifest itself as a program
Null_pointer
Type of computer fault
In modern use on most architectures, these are much rarer than segmentation faults, which occur primarily due to memory access violations: problems
Bus_error
Turkish seismic strike-slip fault
(2005). "Slip Distribution, Fault Geometry, and Fault Segmentation of the 1944 Bolu-Gerede Earthquake Rupture, North Anatolian Fault, Turkey". Bulletin of the
North_Anatolian_Fault
Pointer that does not point to a valid object
dereference the dangling pointer can cause segmentation faults (UNIX, Linux) or general protection faults (Windows). If the program has sufficient privileges
Dangling_pointer
Signal to a computer processor emitted by hardware or software
resolution of a page fault is to make the required page accessible in physical memory. But in other cases such as a segmentation fault the operating system
Interrupt
Memory segmentation on Intel x86
x86 memory segmentation is a term for the kind of memory segmentation characteristic of the Intel x86 computer instruction set architecture. The x86 architecture
X86_memory_segmentation
Form of inter-process communication in computer systems
makes an invalid virtual memory reference, or segmentation fault, i.e. when it performs a segmentation violation. SIGSTOP The SIGSTOP signal instructs
Signal_(IPC)
Constructor that copies the state of another object
first[0], copy[0]); } // (1) first[0] = 10; // (2) } Output 25 25 Segmentation fault Since we did not specify a copy constructor, the compiler generated
Copy_constructor_(C++)
Unexpected program exit due to an error
reading or writing by that application (e.g., segmentation fault, x86-specific general protection fault) attempting to execute privileged or invalid instructions
Crash_(computing)
Software debugger
binary can now be run: $ ./test Segmentation fault Since the example code, when executed, generates a segmentation fault, lldb can be used to inspect the
LLDB_(debugger)
Free memory management software
Electric Fence causes the errant program to abort immediately via a segmentation fault. Normally, these two errors would cause heap corruption, which would
Electric_Fence
Object which stores memory addresses in a computer program
certain platforms such as the Intel x86 architecture, be called a segmentation fault (segfault). The second case is possible in the current implementation
Pointer (computer programming)
Pointer_(computer_programming)
Hardware that translates virtual addresses to physical addresses
conditions or invalid page faults upon illegal or non-existing memory accesses, respectively, leading to segmentation fault or bus error conditions when
Memory_management_unit
General-purpose programming language
Dereferencing a null pointer value is undefined, often resulting in a segmentation fault. Null pointer values are useful for indicating special cases such
C_(programming_language)
Topics referred to by the same term
interferes with subsequent symbols Instruction Storage Interrupt, segmentation fault of a PowerPC Isi (name), personal name, sometimes an abbreviation
ISI
Data structure that maps virtual addresses with physical addresses
deal with the problem. On modern operating systems, it will cause a segmentation fault signal being sent to the offending program. The lookup may also fail
Page_table
Anomaly in computer security and programming
memory can sometimes be detected by the operating system to generate a segmentation fault error that terminates the process. To prevent the buffer overflow
Buffer_overflow
Component that stores information
memory until the program fails as the operating system runs out. A segmentation fault results when a program tries to access memory that it does not have
Computer_memory
Fault zone of the east coast of New Zealand's North Island
Dissen R.J. (2005). "Defining the geometric segmentation and Holocene slip rate of the Wellington Fault, New Zealand: the Pahiatua section". New Zealand
North_Island_Fault_System
Concurrency control mechanism in software
a transaction to trigger a fatal exceptional condition such as a segmentation fault or even enter an endless loop, as in the following contrived example
Software_transactional_memory
Tool to detect memory-related bugs
c:4:10: runtime error: load of null pointer of type 'const char' Segmentation fault (core dumped) Intel MPX The Application Verifier (AppVerif.exe) in
Code_sanitizer
When a computer program fails to release unnecessary memory
attempting to allocate the memory to terminate itself, or to generate a segmentation fault. Some programs are designed to recover from this situation (possibly
Memory_leak
Programming tool for profiling, memory debugging and memory leak detection
of all tools. Since Valgrind itself provides a trace back from a segmentation fault, the none tool provides this traceback at minimal overhead. Addrcheck
Valgrind
Storage segment
be considered a form of here document (a file literal). Segmentation (memory) Segmentation fault Linker (computing) Code segment .bss Uninitialized variable
Data_segment
Hardware or software fault
originally from Online Software International, later Computer Associates Segmentation fault "Debug Malloc Library". Dmalloc - Debug Malloc Library. Retrieved
Storage_violation
Remote debugging program
so.2 (gdb) continue Continuing. Program received signal SIGSEGV, Segmentation fault. 0x08048414 in main () at hello_world.c:10 10 printf("x[%d] = %g\n"
Gdbserver
Technology used in network interface cards
as segmentation. Often, the TCP protocol in the host computer performs this segmentation. Offloading this work to the NIC is called TCP segmentation offload
TCP_offload_engine
Computer programming error
internal compiler error: somefile.c:1001: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate
Compilation_error
Unpredictable result when running a program
although many host systems are still designed to handle such cases in a segmentation fault: use std::ptr; fn main() { let p: *const i32 = ptr::null(); // SAFETY:
Undefined_behavior
Large geological fault in New Zealand
Richard J. (1995-02-01). "Origin of small-scale segmentation and transpressional thrusting along the Alpine fault, New Zealand". GSA Bulletin. 107 (2): 231–240
Alpine_Fault
Computer systems programming special block code
protection Bus error General protection fault Memory paging Memory protection Protection ring Segmentation fault Virtual memory Storage access, file systems
Interrupt_handler
Tectonic boundary in North America
regime". ResearchGate. Brudzinski, Michael R.; Allen, Richard M. (2007). "Segmentation in episodic tremor and slip all along Cascadia". Geology. 35 (10): 907
Cascadia_subduction_zone
Active seismic fault in New Zealand
Dissen, R.J. (2005). "Defining the geometric segmentation and Holocene slip rate of the Wellington Fault, New Zealand: the Pahiatua section". New Zealand
Wellington_Fault
programming, and technology in general. The name "segfault" refers to the segmentation fault, a computer software error. Most stories were written and submitted
Segfault_(website)
Means of entering commands to software
protection Bus error General protection fault Memory paging Memory protection Protection ring Segmentation fault Virtual memory Storage access, file systems
Command-line_interface
Statement that a predicate is always true at that point in code execution
rendering ptr uninitialised. This could potentially result in a segmentation fault or similar null pointer error much further down the line in program
Assertion (software development)
Assertion_(software_development)
Geologic formation in Arizona and Utah, United States
; Hurlow, Hugh A. (1997). "Neotectonics, fault segmentation, and seismic hazards along the Hurricane fault in Utah and Arizona" (PDF). Brigham Young
Hurricane_Fault
Topics referred to by the same term
Illustrators 1450–1950 Data storage interrupt, the name used for a segmentation fault on PowerPC-based processors Data Stream Interface, computer network
DSI
Computer memory management methodology
in memory as the multiply deleted object, program crashes due to a segmentation fault (violation of memory protection) and other forms of undefined behavior
Manual_memory_management
Concurrent execution of multiple processes
the user may receive an access violation error message such as "segmentation fault". In a well designed and correctly implemented multitasking system
Computer_multitasking
Software development methodology
a security vulnerability (stack smashing) or program termination (segmentation fault). An example of a C program prone to a buffer overflow is #include
Secure_coding
Software security techniques
using any kinds of tricks that exploit bugs to read off RAM cause a segmentation fault, terminating the program. It may still be possible to read the canary
Buffer_overflow_protection
Network packet distribution with multiple cores
protection Bus error General protection fault Memory paging Memory protection Protection ring Segmentation fault Virtual memory Storage access, file systems
Multi-core network packet steering
Multi-core_network_packet_steering
French musical project
the Wolves" (2021) "Protocols" (2021) "Interrupt Handler" (2021) "Segmentation Fault" (2021) "Run Away" (2021) "Decompilation" (2021) "Readonly" (2021)
The_Algorithm
Open source patch for PHP
against infinite recursion: PHP has a documented behavior of yielding a segmentation fault error upon infinite recursion. Since this is a memory-safety issue
Suhosin
Active fault in the U.S. states of Utah and Idaho
Fault?". United States Geological Survey. Retrieved 2020-03-19. Jewell, Paul W.; Bruhn, Ronald L. (2013). "Evaluation of Wasatch fault segmentation and
Wasatch_Fault
64-bit extension of x86 architecture
guarantees that the instructions will not cause memory faults (e.g. page-faults and segmentation-faults) for any zero-masked lanes, while AMD64 does not provide
X86-64
Seismic faults in Washington State
Island Fault (SWIF) Rogers Belt (Mount Vernon Fault/Granite Falls Fault Zone) Cherry Creek Fault Zone Rattlesnake Mountain Fault Zone Seattle Fault Tacoma
Puget_Sound_faults
Faults in Kumamoto Prefecture, Japan
Nishizaka, N.; Ohno, I. (2009). "Tectonic model and fault segmentation of the Median Tectonic Line active fault system on Shikoku, Japan". Tectonics. 28 (5)
Futagawa-Hinagu_fault_zone
results in undefined behavior; many C implementations choose to raise a segmentation fault. Schwartz, Randal L.; Phoenix, Tom (2003). Learning Perl Objects.
Autovivification
accesses of memory, even though the program may not be crashing due to a segmentation fault or similar. An error checker may also store additional information
Shadow_memory
Geological fault between the Anatolian and Arabian plates
Duman, Tamer Y.; Emre, Ömer (2013). "The East Anatolian Fault: geometry, segmentation and jog characteristics". Geological Society, London, Special
East_Anatolian_Fault
Security features as used in OpenBSD operating system
corrupted or an invalid access being ignored, they often result in a segmentation fault and abortion of the process. This has brought to light several issues
OpenBSD_security_features
Inherent flaw in computer instructions
arithmetic which can be very fast but may lead to memory corruption or segmentation faults if not used with great caution. Some languages include features that
Software_bug
Software engineering discipline
protection Bus error General protection fault Memory paging Memory protection Protection ring Segmentation fault Virtual memory Storage access, file systems
Forensic_software_engineering
Rift portion in Gulf of Aden
allows for longer spreading segments without transform faults. The difference in segmentation between the Aden and Sheba ridges can be explained by varying
Aden_Ridge
Web programming language
buffer overflows or segmentation faults. C++ has varying semantics, such as default initialization, exceptions, segmentation faults, or buffer overflows
JS++
Computer memory management technique
underneath the existing segmentation layer, enabling the page fault exception to chain with other exceptions without double fault. However, loading segment
Virtual_memory
Memory-safe dialect of the C programming language
following limits on programs: NULL checks are inserted to prevent segmentation faults Pointer arithmetic is limited Pointers must be initialized before
Cyclone (programming language)
Cyclone_(programming_language)
2022 studio album by the Algorithm
from Data Renaissance "Interrupt Handler" Released: 28 May 2021 "Segmentation Fault" Released: 8 July 2021 "Decompilation" Released: 15 September 2021
Data_Renaissance
Active transform fault in Canada and Alaska
"Plate boundary localization, slip-rates and rupture segmentation of the Queen Charlotte Fault based on submarine tectonic geomorphology". Earth and
Queen_Charlotte_Fault
Block cipher
initialization of z is Undefined behavior for n < 1 which may cause a segmentation fault or other unwanted behavior – it would be better placed inside the
XXTEA
Major earthquakes in the Turkey–Syria border region
April 2023. Duman, T.Y.; Emre, Ö (2013). "The East Anatolian Fault: geometry, segmentation and jog characteristics". In Robertson, A.H.F.; Parlak, O; Ünlügenç
2023_Turkey–Syria_earthquakes
CLI feature that enables managed code to call native code
environment. When they are used improperly this may cause problems such as segmentation faults or memory leaks. Getting the exact signatures of the legacy functions
Platform_Invocation_Services
16-bit microprocessor
support for virtual memory, adding new status registers to indicate segmentation faults (test and set) and provide an abort capability. There are sixteen
Zilog_Z8000
Geological feature
Himalayan Thrust (MHT) is a décollement under the Himalaya Range. This thrust fault follows a northwest-southeast strike, reminiscent of an arc, and gently
Main_Himalayan_Thrust
Major fault along the southern boundary of the Shillong Plateau
paleo-seismological study of the Dauki fault at Jaflong, Sylhet, Bangladesh: Historical seismic events and an attempted rupture segmentation model", Journal of Asian
Dauki_fault
Transform fault zone off the coast of southern Chile
The Valdivia fracture zone (VFZ) is a transform fault zone off the coast of southern Chile which runs between the continental slope near Valdivia in Chile
Valdivia_fracture_zone
Geological fault in Oklahoma, United States
the Meers fault is a "back-thrust" that dips northwards. Unlike many other faults, there is no evidence of segmentation in the Meers fault. A conspicuous
Meers_Fault
Comparison between two programming languages
Related programming errors can lead to low-level buffer overflows and segmentation faults. The Standard Template Library provides higher-level RAII abstractions
Comparison_of_Java_and_C++
extended debug information which was available in case of a crash (Segmentation fault, bus error, or similar). The project is no longer active but has been
Process_control_daemon
Check can catch both assertion failures and code errors that cause segmentation faults or other signals. The output from unit tests can be used within source
List of unit testing frameworks
List_of_unit_testing_frameworks
Seismically active fault in Argentina
Yiou, F.; Raisbeck, G. (September 1996). Segmentation and horizontal slip rate estimation of the El Tigre fault zone, San Juan Province (Argentina) from
El_Tigre_Fault
Fault system in Taiwan
(2006). "Coseismic versus interseismic ground deformations, fault rupture inversion and segmentation revealed by 2003 Mw 6.8 Chengkung earthquake in eastern
Chihshang_fault
Layer of protection in computer systems
rings, are mechanisms to protect data and functionality from faults (by improving fault tolerance) and malicious behavior (by providing computer security)
Protection_ring
Long narrow depression bordering the Aegean Sea to the south
04551.x. Svigkas, Nikos; et al. (2019). "On the Segmentation of the Cephalonia–LefkadaTransform Fault Zone (Greece) from an InSARMulti-Mode Dataset of
Hellenic_Trench
Linear feature on the ocean floor
active transform fault move in opposite directions, resulting in strike-slip activity. Fracture zones extend past the transform faults, away from the ridge
Fracture_zone
American information technology company
behavioral analytics Asset discovery and classification Network segmentation and micro-segmentation Identity-based policy enforcement MACsec encryption support
Arista_Networks
Oceanic trench on a transform boundary between the Caribbean and North American plates
occurring along this fault zone could generate a significant tsunami. Puerto Rico, which lies immediately to the south of the fault zone and the trench
Puerto_Rico_Trench
Seismic fault in New Zealand
The Eastern section of the fault runs from Molesworth Station to the coast, near White Bluffs, without significant segmentation. Shallow-crust seismic studies
Awatere_Fault
Linear lowland created by a tectonic rift or fault
"Topographic Analysis Of Devana Chasma, Venus; Implications For Rift System Segmentation And Propagation". Journal of Structural Geology. 28 (12): 2144–2155.
Rift_valley
Tectonic process
forming a series of features including forearc slivers and strike slip fault systems that are sub-parallel to ocean trenches. In addition, oblique subduction
Oblique_subduction
Geological feature in Asia
The Xianshuihe fault system or the Yushu-Ganzi-Xianshuihe fault system is a major active sinistral (left-lateral) strike-slip fault zone in southwestern
Xianshuihe_fault_system
zones are common features in the geology of oceanic basins. Globally most fault zones are located on divergent plate boundaries on oceanic crust. This means
List_of_fracture_zones
Earthquake in Turkey
(2021). "Fault geometry, segmentation and slip distribution associated with the 1939 Erzincan Earthquake rupture along the North Anatolian Fault, Turkey"
1939_Erzincan_earthquake
Geological linear zone where the lithosphere is being pulled apart
Margin segmentation eventually leads to the formation of rift domains with variations of the Moho topography, including proximal domain with fault-rotated
Rift
Northwest-striking fault in Chile
Lanalhue Fault is a northwest-striking fault that marks the contact between two distinct units of continental basement, the Eastern and Western Series
Lanalhue_Fault
Seismic fault in Central Turkey
"NEOTECTONIC-PERIOD CHARACTERISTICS, SEISMICITY, GEOMETRY AND SEGMENTATION OF THE TUZ GÖLÜ FAULT ZONE". Bulletin of the Mineral Research and Exploration. 149
Tuz_Gölü_Fault_Zone
Earthquake in Kocaeli Province, Turkey
are quite important, with respect to the segmentation of major fault ruptures along the North Anatolian Fault Zone in north-western Turkey. With the possible
1999_İzmit_earthquake
French researcher (born 1957)
Earth, 118, 5956–5975, 2013 (2013) Ouillon, G., and D. Sornette, Segmentation of Fault Networks Determined from Spatial Clustering of Earthquakes, J. Geophys
Didier_Sornette
Mountain range in South Korea
metrics for unveiling fault segmentation and tectono-geomorphic evolution with insights into the impact of inherited topography, Ulsan Fault Zone, South Korea"
Dongdae_Mountains
Software that manages computer hardware resources
circumvent the need to use it. A general protection fault would be produced, indicating a segmentation violation had occurred; however, the system would
Operating_system
travel, tourism, insurance
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