General Bus Error
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challenged and removed. (July 2015) (Learn how and when to remove this template message) In computing, a bus error is a fault raised by hardware, notifying an operating system (OS) bus error c++ that a process is trying to access memory that the CPU cannot
Bus Error Linux
physically address: an invalid address for the address bus, hence the name. In modern use on most architectures these how to solve bus error in linux are much rarer than segmentation faults, which occur primarily due to memory access violations: problems in the logical address or permissions. On POSIX-compliant platforms, bus errors usually result in the SIGBUS linux bus error core dumped signal being sent to the process that caused the error. SIGBUS can also be caused by any general device fault that the computer detects, though a bus error rarely means that the computer hardware is physically broken—it is normally caused by a bug in a program's source code.[citation needed] Bus errors may also be raised for certain other paging errors; see below.
Sigbus Error Linux
Contents 1 Causes 1.1 Non-existent address 1.2 Unaligned access 1.3 Paging errors 2 Example 3 References Causes[edit] There are at least three main causes of bus errors: Non-existent address[edit] Software instructs the CPU to read or write a specific physical memory address. Accordingly, the CPU sets this physical address on its address bus and requests all other hardware connected to the CPU to respond with the results, if they answer for this specific address. If no other hardware responds, the CPU raises an exception, stating that the requested physical address is unrecognized by the whole computer system. Note that this only covers physical memory addresses. Trying to access an undefined virtual memory address is generally considered to be a segmentation fault rather than a bus error, though if the MMU is separate, the processor can't tell the difference. Unaligned access[edit] Most CPUs are byte-addressable, where each unique memory address refers to an 8-bit byte. Most CPUs can access individual bytes from each memory address, but they generally cannot access larger units (16 bits, 32 bits, 64 bits and so on) without these units being "a
and End-of-Life ProductsCisco IOS Software Releases 12.1 MainlineTroubleshoot and AlertsTroubleshooting TechNotes Troubleshooting Bus Error Crashes Download Print Available Languages Download Options PDF (153.3 KB) View with Adobe Reader on bus error vs segmentation fault a variety of devices ePub (111.5 KB) View in various apps on iPhone, how to debug bus error iPad, Android, Sony Reader, or Windows Phone Mobi (Kindle) (129.9 KB) View on Kindle device or Kindle app on
Bus Error Ubuntu
multiple devices Updated:Jun 16, 2016 Document ID:7949 ContentsIntroductionPrerequisitesRequirementsComponents UsedConventionsIdentifying Bus Error CrashesTroubleshooting Bus Error CrashesTroubleshooting Bus Error Crashes on 68000 Processor PlatformsTroubleshooting Bus Error Crashes on RISC Processor PlatformsSpecial Types of Bus Error https://en.wikipedia.org/wiki/Bus_error CrashesTroubleshooting Techniques for Bus Error Exception Boot LoopsCisco IOS Software Loaded Does Not Support Installed HardwareSoftware FailureMis-seated HardwareHardware FailureInformation to Collect if You Open a Service RequestRelated Information Introduction This document explains how to identify bus error crashes and how to troubleshoot those crashes depending on the type of processor you have in your Cisco router. Prerequisites Requirements Cisco recommends that you read Troubleshooting Router Crashes http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-software-releases-121-mainline/7949-crashes-buserror-troubleshooting.html before proceeding with this document. Components Used The information in this document is based on these software and hardware versions: All Cisco IOS® software versions All Cisco routers Note:This document does not apply to Cisco Catalyst switches or MGX platforms. The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to the Cisco Technical Tips Conventions for more information on document conventions. Identifying Bus Error Crashes The system encounters a bus error when the processor tries to access a memory location that either does not exist (a software error) or does not respond properly (a hardware problem). A bus error can be identified from the output of the show version command provided by the router if not power-cycled or manually reloaded. If you have the output of a show version or show technical-support command (from enable mode) from your Cisco device, you can use it to display potential issues and fixes. In order to use it, you mu
in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Bus Error? I wrote a .oct file http://octave.1599824.n4.nabble.com/Bus-Error-td1610466.html called tzterm.oct and it compiled without error. But when I try to run it I get an error which I don't know how to interpret. What is going on? Octave, version 2.0.13 (sparc-sun-solaris2.6). Copyright (C) 1996, 1997, 1998 John W. Eaton. This is free software with ABSOLUTELY NO WARRANTY. For details, type `warranty'. octave:1> load bus error start octave:2> newr = tzterm(1,r0,kappa,theta,sigma,.0825,.08,lamu,laml); error: bus error -- stopping myself... attempting to save variables to `octave-core'... save to `octave-core' complete Bus error (core dumped) _______________________________________________________________________________ Heber Farnsworth Assistant Professor of Finance John M. Olin School of Business Washington University Campus Box 1133 phone: (314) 935-4221 One Brookings Drive FAX: (314) 935-6359 St. Louis, MO 63130-4899 bus error linux John W. Eaton-6 Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Bus Error? On 17-Dec-1998, [hidden email] <[hidden email]> wrote: | I wrote a .oct file called tzterm.oct and it compiled without error. But | when I try to run it I get an error which I don't know how to interpret. | What is going on? | | Octave, version 2.0.13 (sparc-sun-solaris2.6). | Copyright (C) 1996, 1997, 1998 John W. Eaton. | This is free software with ABSOLUTELY NO WARRANTY. | For details, type `warranty'. | | octave:1> load start | octave:2> newr = tzterm(1,r0,kappa,theta,sigma,.0825,.08,lamu,laml); | error: bus error -- stopping myself... | attempting to save variables to `octave-core'... | save to `octave-core' complete | | Bus error (core dumped) I'd guess a bug in your code, but I can't be sure without seeing it. jwe « Return to Octave - General | 1 view|%1 views Loading... Free forum by Nabble Edit this page