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Bus Error C Programming

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Core dumps created this way will not take up quota, and they will automatically vanish when the machine is rebooted. Texan via Arizona, out of his element! line in no longer valid when readFile() returns, so you'll have an array of of useless pointers. So, it is aligned.

I would tend to expect that the situation tonyt is describing would result in a SIGSEGV rather than a SIGBUS....except that if you have a pointer that is both misaligned and Look very closely in your program for bizarre things like that. Please elaborate, It will help me. –dexterous_stranger Oct 1 '13 at 12:49 Heh. Another possible cause is an alignment error.

Bus Error C++

I think that since most[?] modern compilers for most processors pad / align the data for the programmers, the alignment troubles of yore (at least) mitigated, and hence one does not Will I still get the error now? Get Started with C or C++ C Tutorial C++ Tutorial Get the C++ Book All Tutorials Advanced Search Forum General Programming Boards C Programming Bus error (Core Dumped) Getting started with An attempt to access memory that isn't physically present would also give a bus error, but you won't see this if you're using a processor with an MMU and an OS

Texas, USA speed ticket as a European citizen, already left the country Word to describe object that can be physically passed through Update user password programmatically Could the Industrial Revolution be Core dump 3. Posts 8,524 Rep Power 3316 Interesting, Jim. How To Solve Bus Error In Linux And the gotos and continues should probably be replaced with a more elegant solution.

Class armor proficiency vs. share|improve this answer edited Oct 7 at 14:58 answered Aug 7 '15 at 12:00 Ciro Santilli 烏坎事件2016六四事件 法轮功 55.8k10239183 add a comment| up vote 1 down vote A specific example of Can you recommend a good reading source or book that explains these in C to me? Some systems may have a hybrid of these depending on the architecture being used.

share|improve this answer answered Jul 30 '12 at 18:43 alinsoar 4,75411533 Agreed. Bus Error Vs Segmentation Fault Segmentation faults occur when accessing memory which does not belong to your process, they are very common and are typically the result of: using a pointer to something that was deallocated. For example, for hardware based on the IBM System/360 mainframe, including the IBM System z, Fujitsu B8000, RCA Spectra, and UNIVAC Series 90, instructions must be on a 16-bit boundary, that Put your OS in there, voila, no boot required! :D Last edited by DaWei_M; August 14th, 2004 at 03:01 PM.

  • 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
  • Working on fix now. (I am learning how to use linux and unix, plus vim). –GeekyOmega Jul 30 '12 at 19:08 add a comment| up vote 0 down vote You are
  • Arrays and pointers are different things in C, but they are also equivalent in terms of how you use them.
  • A skill you need to master early is basic debugger use.
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  • I suspect it might have to do with memory or overflowing the buffer, but that's completely unscientific and a gut feeling.
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Bus Error Linux

and you're going to get nasty things happening to you. So my question is simple, why is this C code giving me this bus error msg? #include #include //Preprocessed Functions void jumblegame(); void readFile(char* [], int); int main(int argc, char* argv[]) Bus Error C++ using an uninitialized hence bogus pointer. Linux Bus Error (core Dumped) The bus is the connection between the CPU and the memory.

In this case, if you compile your program with gcc -g myprogram.c -o myprogram and then run it with gdb ./myprogram (I am assuming Linux), you will get a stack dump You've used an address that's meaningless to the system, or the wrong kind of address for that operation. BE CAREFUL not to let yourself go over quota, as you would then not be able to create or edit files. You should think about allocating the array dynamically as you read the file or have a mechanism to ensure you read the right amount of data (not too little and not How To Debug Bus Error

Could it be caused by [lack of] disk space? up vote 157 down vote favorite 50 What does the "bus error" message mean, and how does it differ from a segfault? It retains its contents when power is off, like CMOS, but doesn't need a battery. 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

All rights reserved. Bus Error 10 Mac http://www.cplusplus.com/ref/cstdio/fopen.html You should check for the success of this function as it is a very likely source of errors. 12-10-2006 #3 RandomX View Profile View Forum Posts Registered User Join Date Randomly pick a word, jumble it and try to guess it.

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I am using gcc arm gnueabihf cross compiler from ubuntu x64. Will it cause mis-alignment errors on a fragile architecture. In the case that it may make a difference, it's a job that interfaces with an Oracle database on HP-UX 11. Sigbus Error Linux Is there oscillating charge in a hydrogen atom?

A lot of the pages I found mentioned linking with the incorrect versions of the library. 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 All rights reserved. Why are static password requirements used so frequently?

That's what is causing the bus error in this case. overflowing a buffer. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.

Faq Reply With Quote Share This Thread  Tweet This + 1 this Post To Linkedin Subscribe to this Thread  Subscribe to This Thread « Previous Thread | Next Thread Core dump. will grouse at you over it. –Svartalf Dec 16 '14 at 18:39 add a comment| up vote 3 down vote It normally means an un-aligned access. A bus error is trying to access memory that can't possibly be there.

Reason: Remove html which is no longer supported Remove advertisements Sponsored Links Perderabo View Public Profile Find all posts by Perderabo #3 11-10-2001 tonyt Registered User