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Bus Error In C


share|improve this answer answered Jul 30 '12 at 18:38 AlexDev 1,675821 add a comment| up vote 0 down vote char* array[5049], int x array[x] = fgets(line,256,file) You assign to array[x], which 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 How do I get the last lines of dust into the dustpan? share|improve this answer answered May 8 at 6:04 brucellino 1057 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up

using an uninitialized hence bogus pointer. My code is an attempt to teach myself C. Great! C and C++ programmers can also use 'gdb'.

Bus Error Linux

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Unix Answers: Bus Error or Segmentation Fault Note: If you are running Ignore sudo in bash script Make loop more efficient Why do Internet forums tend to prohibit responding to inactive threads? By using this site, you agree to the Terms of Use and Privacy Policy. POSIX describes SIGBUS as: Access to an undefined portion of a memory object.

Browse other questions tagged c unix segmentation-fault bus-error or ask your own question. The goal in my game is to take a huge 5049 x 1 text file of words. You just simply don't want to DO this. Bus Error Vs Segmentation Fault Should I report it?

Paging errors[edit] FreeBSD, Linux and Solaris can signal a bus error when virtual memory pages cannot be paged in, e.g. share|improve this answer edited Dec 17 '14 at 8:36 answered Oct 17 '08 at 14:58 unwind 258k39338464 1 In case, I had data[8]; This is now a multiple of 4 Remove advertisements Sponsored Links LivinFree View Public Profile Find all posts by LivinFree #2 11-09-2001 Perderabo Unix Daemon (Administrator Emeritus) Join Date: Aug 2001 Last Activity: 26 That's the reason why most security exploits work. –David Schmitt May 8 '09 at 7:20 I obviously suck, compared to Pax and Bastien. :) But yeah, @Thunderboltz, as other

If no other hardware responds, the CPU raises an exception, stating that the requested physical address is unrecognized by the whole computer system. Bus Error 10 Mac Thank you. –GeekyOmega Jul 30 '12 at 19:46 add a comment| up vote 0 down vote You have at least a few problems: array[x] = fgets(line,256,file) This stores the address of armor proficiency feats Make loop more efficient Simple geometry. I probably will tinker around with a way to get this work using fread directly.

Linux Bus Error (core Dumped)

short *sptr; int i; sptr = (short *)&i; // For all odd value increments, it will result in sigbus. then the program was trying to access a memory location outside its address space. Bus Error Linux Which current networking protocol would be the optimal choice for very small FTL bandwidth? How To Debug Bus Error Do Matrix Multiplication!

Can you recommend a good reading source or book that explains these in C to me? Does that mean that OS X Mavericks is buggy? This is why cpu's bother to have a two-tiered check on an address. 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 How To Solve Bus Error In Linux

kid in winter Is there a command for running a script according to its shebang line? 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 Not the answer you're looking for? So at *map = 0 we are touching past the end of the allocated object.

Browse other questions tagged c arrays function bus-error or ask your own question. Sigbus Error Linux 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. A minimal example that produces it because ftruncate was forgotten: #include /* O_ constants */ #include /* ftruncate */ #include /* mmap */ int main() { int fd;

This book is dated, but it remains very useful, and no C text that I've seen is more succinct.

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, Here is a program that, I think, will compile with every C or C++ compiler, but should cause a bus error when the second printf is attempted... This answered my question. Bus Error Python armor proficiency feats Why rotational matrices are not commutative?

You can trigger a BUS error/Alignment Trap if you do something silly like do pointer math and then typecast for access to a problem mode (i.e. I searched google for a cause, but came up with some conflicting reports... Core dump. Update user password programmatically What is the role of conjectures in modern mathematics?

This was such a stupid mistake and I fixed it. Binomial coefficients and "missing primes" Two resistors in series Ignore sudo in bash script Word to describe object that can be physically passed through At age 25, is it still okay Systems tolerate this inefficient algorithm, as it is an essential feature for most software, especially string processing. How worried should I be about getting hacked with PoisonTap?

Still tonyt may have a system that works differently than mine. Could California Ratify the Paris Agreement? It's not so much type conversion as you're doing type conversion on a pointer that you've done pointer math on. This error is caught after the attempted conversion of the virtual address to a physical address.

because it has disappeared (e.g. Put your OS in there, voila, no boot required! :D Last edited by DaWei_M; August 14th, 2004 at 03:01 PM. You've used an address that's meaningless to the system, or the wrong kind of address for that operation. My problem is that I cannot understand why my particular code is giving me an error.