Bus Error Core Dump C
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Python Bus Error Core Dumped
a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why am I getting core dumped? [closed] up vote 0 down vote favorite Please help me. I can't figure out why I get a core dumped when I run this program. bus error linux Before returning anything I can print all_albums_p just fine. Why am I getting core dumped? #include "music_server.h" struct album_ { int num_tracks; char **tracks; int **playlist_hits; }; typedef struct album_ album; album *parse_album(FILE *album_file,int *number_of_albums){ int number_of_album,number_of_tracks,number_of_charaters; int i,j; char dummy_space; int *p; fscanf(album_file,"%d", &number_of_album); *number_of_albums = number_of_album; album *all_albums_p = (album *)malloc(sizeof(album)*number_of_album); for(j=0;j here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us bus error (core dumped) centos Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Bus error vs Segmentation fault up vote 25 http://stackoverflow.com/questions/9985818/why-am-i-getting-core-dumped down vote favorite 8 Difference between a bus error and a segmentation fault? Can it happen that a program gives a seg fault and stops for the first time and for the second time it may give a bus error and exit ? c share|improve this question edited May 2 '12 at 12:04 casperOne 58k10126202 asked May 8 '09 at 6:56 Thunderboltz 6253915 add a comment| 6 http://stackoverflow.com/questions/838540/bus-error-vs-segmentation-fault Answers 6 active oldest votes up vote 34 down vote accepted On most architectures I've used, the distinction is that: a SEGV is caused when you access memory you're not meant to (e.g., outside of your address space). a SIGBUS is caused due to alignment issues with the CPU (e.g., trying to read a long from an address which isn't a multiple of 4). share|improve this answer answered May 8 '09 at 7:06 paxdiablo 488k1179691416 10 Memory mapped files can also generate SIGBUS. –bk1e May 8 '09 at 16:06 on arm SIGBUS can occur if you read a float from an address that is not 4 byte aligned –shoosh Mar 30 at 7:29 shoosh, I'm pretty certain that's covered by my second bullet point. –paxdiablo Mar 30 at 13:28 add a comment| up vote 11 down vote SIGBUS will also be raised if you mmap() a file and attempt to access part of the mapped buffer that extends past the end of the file, as well as for error conditions such as out of space. If you register a signal handler using sigaction() and you set SA_SIGINFO, it may be possible to have you Programming Boards C Programming Bus error (Core Dumped) Getting started with C or C++ | C Tutorial http://cboard.cprogramming.com/c-programming/86430-bus-error-core-dumped.html | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: Bus error (Core Dumped) Thread Tools Show Printable Version Email this https://en.wikipedia.org/wiki/Bus_error Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 12-10-2006 #1 RandomX View Profile View Forum Posts Registered User Join Date Nov bus error 2006 Posts 19 Bus error (Core Dumped) Hey everyone, I am writing a basic program titled, "LMC.c" that takes the contents from a file "LMC.s", and outputs them into another file "LMC.o" Here is the input file, LMC.s Code: INP 00 STO 90 INP 00 ADD 90 OUT 00 STOP 00 Then here is the program that reads bus error core the input file, LMC.c Code: #include 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) that a process is trying to access memory that the CPU cannot physically address: an invalid address for the address bus, hence the name. In modern use on most architectures these 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 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. 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 "aligned" to a specific boundary (the x86 platform being a notable exception). 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 addreHow To Debug Bus Error
Bus Error Core Dumped In Unix