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Bus Error


This indicates a hardware problem. If you would like to provide more details, please log in and add a comment below. POSIX describes SIGBUS as: Access to an undefined portion of a memory object. to limit your core dump size to 100K for your current login.

Why don't my users have separate desktops in Windows 10? From: Here share|improve this answer answered Oct 17 '08 at 14:54 Oli 93.1k45160228 Depends on the nasty tricks you're doing with your code. One method is to use printf() statements to determine how far the program is getting before it crashes, and to print out the contents of interesting variables. Give serious consideration to installing the most recent maintenance release of the Cisco IOS software train that you are currently running.

Bus Error Linux

Being vulnerable to bus errors is a sign of bad management. When there's only one person who knows how to do something crucial to a particular workflow, and that person suddenly becomes unavailable (i.e., "falls under a bus" - but most likely because it has disappeared (e.g.

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  • The compiler has carefully dword aligned your pointer for data- and then you screw everything up on the compiler by offsetting the reference by TWO and typecasting to a very much
  • Related 1997Improve INSERT-per-second performance of SQLite?1Segmentation fault error0Error while executing: Segmentation fault-2Segmentation fault Error0Getting Error Segmentation fault0Segmentation fault error for a matrix assignment0C Segmentation Fault Error0Segmentation Fault : error code 110segmentation
  • Troubleshooting Techniques for Bus Error Exception Boot Loops This section focuses on general troubleshooting techniques for bus error exception boot loops: Cisco IOS software loaded does not support installed hardware Software

because it has disappeared (e.g. If you register a signal handler using sigaction() and you set SA_SIGINFO, it may be possible to have your program examine the faulting memory address and handle only memory mapped file CPUs generally access data at the full width of their data bus at all times. Bus Error Vs Segmentation Fault c share|improve this question edited May 2 '12 at 12:04 casperOne 58.5k10127204 asked May 8 '09 at 6:56 Thunderboltz 6303915 add a comment| 6 Answers 6 active oldest votes up vote

For example, if multi-byte accesses must be 16 bit-aligned, addresses (given in bytes) at 0, 2, 4, 6, and so on would be considered aligned and therefore accessible, while addresses 1, How To Debug Bus Error Systems tolerate this inefficient algorithm, as it is an essential feature for most software, especially string processing. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view Bus error From Wikipedia, the free encyclopedia Jump to: navigation, search This article needs additional citations for verification. 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

That's what is causing the bus error in this case. Bus Error 10 Mac Do only black holes emit gravitational waves? There are two main types of processors in Cisco routers: 68000 Processors This is part of a show version output that indicates that the router has a 68000 processor: cisco 2500 If you're interested in learning more details and how to debug your own programs, read on.

How To Debug Bus Error

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 Who created the Secret Stairs as a way into Mordor and for what purpose? Bus Error Linux A common example is: int c; scanf("%d", c); instead of the correct version: int c; scanf("%d", &c); There are a number of methods for finding out where the program went out Linux Bus Error (core Dumped) No errors when compiling Hot Network Questions Texas, USA speed ticket as a European citizen, already left the country Did Kuntī deliver Karṇa through her womb?

BUS errors are caused by an attempt to access "memory" that the machine simply cannot access because the address is invalid. (Hence the term "BUS" error.) This can be due to A common example in C is: int c; scanf("%d", c); instead of the correct version: int c; scanf("%d", &c); An example from C++ is: int* p=new int[100]; cout<< p[100]; instead of Another advantage of using the show region command is that the memory mapping depends on the amount of memory installed on the router. Or is it inevitable once a certain point in development is reached? How To Solve Bus Error In Linux

Just start typing. To allow core dumps and still not have quota worries, you can make a symbolic link from the name core into the /tmp directory. low-memory conditions or out of huge pages when using huge page memory.) Typically mmap (and malloc) just reserve the virtual address space, and the kernel assigns the physical memory on demand Could California Ratify the Paris Agreement?

Then you can type, say: limit coredumpsize 100 .. Bus Error Python share|improve this answer answered Oct 17 '08 at 14:55 Clinton Pierce 6,97394576 add a comment| up vote 8 down vote I believe the kernel raises SIGBUS when an application exhibits data You've used an address that's meaningless to the system, or the wrong kind of address for that operation.

part of the question.

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 "aligned" Uncover the mysteries of the marks... Special Types of Bus Error Crashes A special type of bus error crash is when the crash is caused by a corrupted program counter (PC). Sigbus Error Linux Decode the pieces of our favorite...

Unlike bytes, larger units can span two aligned addresses and would thus require more than one fetch on the data bus. 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 Related Information Troubleshooting Router Crashes Troubleshooting Versatile Interface Processor Crashes Troubleshooting Line Card Crashes on the Cisco 12000 Series Internet Router Cisco CLI Analyzer (registered customers only) Technical Support - Cisco It's bad practices, to be blunt. :D –Svartalf Apr 23 '15 at 18:15 | show 2 more comments up vote 2 down vote It depends on your OS, CPU, Compiler, and

Class armor proficiency vs. At age 25, is it still okay to wear braces to work? CRASH INFO: Slot 1, Index 1, Crash at 11:27:15 utc Wed May 16 2001 VERSION: GS Software (GLC1-LC-M), Version 12.0(16.5)S, EARLY DEPLOYMENT MAINTENANCE INTERIM SOFTWARE TAC Support: http://www.cisco.com/pcgi-bin/ibld/view.pl?i=support Compiled Thu 29-Mar-01 The R in (R4700) indicates a RISC processor.