Program Received Signal 10 Sigbus Bus Error
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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 Learn more about Stack Overflow the company Business Learn more about hiring developers or bus error c++ posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss bus error in linux Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes linux bus error core dumped a minute: Sign up What is a bus error? up vote 156 down vote favorite 49 What does the "bus error" message mean, and how does it differ from a segfault? c unix segmentation-fault bus-error share|improve this question edited Oct how to debug bus error 18 '15 at 10:44 Cool Guy 15.7k51952 asked Oct 17 '08 at 14:48 raldi 7,272216178 add a comment| 15 Answers 15 active oldest votes up vote 152 down vote accepted Bus errors are rare nowadays on x86 and occur when your processor cannot even attempt the memory access requested, typically: using a processor instruction with an address that does not satisfy its alignment requirements. Segmentation faults occur when accessing memory which does not belong to your process, they are very common
How To Solve Bus Error In Linux
and are typically the result of: using a pointer to something that was deallocated. using an uninitialized hence bogus pointer. using a null pointer. overflowing a buffer. PS: To be more precise this is not manipulating the pointer itself that will cause issues, it's accessing the memory it points to (dereferencing). share|improve this answer edited Oct 17 '08 at 15:18 answered Oct 17 '08 at 15:12 bltxd 5,75322336 52 They aren't rare; I'm just at Exercise 9 from How to Learn C the Hard Way and already encountered one... –11684 Mar 26 '13 at 20:12 6 Another cause of bus errors (on Linux anyway) is when the operating system can't back a virtual page with physical memory (e.g. 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 (so called soft page faults.) Make a large enough malloc, and then write to enough of it and you'll get a bus error. –Eloff Jul 14 '15 at 0:09 add a comment| Did you find this question interesting? Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). Subscribed! Success! Please click the link in the confirmation email to activate your subscription. up vote 58 down vote A segfault is accessing memory that you're not allowed to access. It's read-o
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Sigbus Error Linux
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users bus error vs segmentation fault Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping bus error 10 mac each other. Join them; it only takes a minute: Sign up Bus error vs Segmentation fault up vote 25 down vote favorite 8 Difference between a bus error and a segmentation fault? Can it happen that a program http://stackoverflow.com/questions/212466/what-is-a-bus-error 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 58.2k10127202 asked May 8 '09 at 6:56 Thunderboltz 6253915 add a comment| 6 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 http://stackoverflow.com/questions/838540/bus-error-vs-segmentation-fault 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 492k1189731422 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 your program examine the faulting memory address and handle only memory mapped file errors. share|improve this answer answered May 8 '09 at 16:04 bk1e 18k43760 add a comment| up vote 5 down vote For instance, a bus error might be caused when your program tries to do something that the hardware bus doesn't support. On SPARCs, for instance,
get tips & solutions from a community of 418,623 IT Pros & https://bytes.com/topic/c/answers/686348-sigbus-bus-error Developers. It's quick & easy. SIGBUS, Bus error. P: n/a https://bytes.com/topic/c/answers/212319-case-bus-error contactmayankjain Hi, I am getting the following error. Can you tell me any solution to this problem and the reason for this 298 Program received signal SIGBUS, Bus error. 0x000000080137ae02 in __gnu_cxx::__exchange_and_add () from /usr/lib/libstdc++.so.5 (gdb) bt #0 0x000000080137ae02 in __gnu_cxx::__exchange_and_add () from bus error /usr/lib/libstdc++.so.5 #1 0x00000000008a3ead in PContainer::Destruct () #2 0x000000000044e278 in ~PAbstractArray ( this=0x7fffffffdbb8) at array.h:171 #3 0x000000000046b947 in ~PBaseArray (this=0x7fffffffdbb8) at array.h:849 #4 0x00000000004af257 in ~PBYTEArray (this=0x7fffffffdbb8) at h4504.cxx:155 #5 0x00000000004af86c in ~PASN_OctetString ( this=0x7fffffffdb90) at h4504.cxx:155 #6 0x00000000004bb8af in ~H225_H323_UserInformation_user_data (this=0x7fffffffda68) at h450pdu.cxx:389 #7 0x00000000004bae0f in ~H225_H323_UserInformation ( this=0x7fffffffcc40) at h225_1.cxx:8157 Thanks Regards Mayank bus error in Jain Aug 1 '07 #1 Post Reply Share this Question 10 Replies P: n/a Ian Collins co***************@gmail.com wrote: > Hi, I am getting the following error. Can you tell me any solution to this problem and the reason for this You have an error at line 42 of your code. For better help, post a minimal example that gives the problem. -- Ian Collins. Aug 1 '07 #2 P: n/a contactmayankjain On Aug 1, 2:33 pm, Ian Collins get tips & solutions from a community of 418,623 IT Pros & Developers. It's quick & easy. A Case of BUS Error ! P: n/a Vivek Mohan Hi everybody ! I have this (very) simple program written in C which when run, gives me a "Bus Error". I did a lot of googling around on "Bus Error" every where it was all about misaligned integer/double access or accessing inexistent memory devices. But neither case matches my code. Can any one please help me find the very-obvious thing I have missed ? Code ---- unsigned char *x = "text"; int main(){ x[2] = 's'; } Heres the gdb output -------------------- GNU gdb 5.2.1 (FreeBSD) Copyright 2002 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-undermydesk-freebsd"... Core was generated by `x'. Program terminated with signal 10, Bus error. Reading symbols from /usr/lib/libc.so.5...done. Loaded symbols for /usr/lib/libc.so.5 Reading symbols from /usr/libexec/ld-elf.so.1...done. Loaded symbols for /usr/libexec/ld-elf.so.1 #0 0x080484b0 in main () at test.c:4 4 x[2] = 's'; (gdb) run Starting program: /usr/home/vivek/projects/haxle/core/x Program received signal SIGBUS, Bus error. 0x080484b0 in main () at test.c:4 4 x[2] = 's'; (gdb) bt #0 0x080484b0 in main () at test.c:4 #1 0x080483e5 in _start () Thank You Vivek Nov 13 '05 #1 Post Reply Share this Question 4 Replies P: n/a Vivek Mohan Thank you for your reply. But forgive me for my newbie questions :) because if you are right I think I've messed up my concepts somewhere. But from what I understand its only a variable you can declare a constant right ? Can the memory contents such as the strings in this case be constant ? x points to a text string which is constant. you try to change the constant -> kaboom Moreover, if thats the case then how is it that when I used "unsigned char x[] = ..." the program works perfectly. Also what I get is a BUS Error, what does that mean, exactly, in this context. Thank you again, Vivek Jörgen Nov 13 '05 #2 P: n/a Atreya, Chaitanya Vivek Mohan wrote: Thank you for your reply. But forgive me for my newbie questions :) because if you are right I think I've messed up my concepts somewhere. But from what I understand its only a variable you can declare a constant right ? Can the memory contents such