Questions tagged [bus-error]
142 questions
342
votes
17 answers
What is a bus error? Is it different from a segmentation fault?
What does the "bus error" message mean, and how does it differ from a segmentation fault?
raldi
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41
votes
7 answers
Bus error vs Segmentation fault
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 ?
Thunderboltz
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21
votes
9 answers
Debugging SIGBUS on x86 Linux
What can cause SIGBUS (bus error) on a generic x86 userland application in Linux? All of the discussion I've been able to find online is regarding memory alignment errors, which from what I understand doesn't really apply to x86.
(My code is…
Josh Kelley
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17
votes
12 answers
How to get a "bus error"?
I am trying very hard to get a bus error.
One way is misaligned access and I have tried the examples given here and here, but no error for me - the programs execute just fine.
Is there some situation which is sure to produce a bus error?
Lazer
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12
votes
3 answers
How to fix "Bus error 10" after update to Xcode 10.2
I updated Xcode to new stable 10.2v. I tried to build my project and it was successful. When I'm trying to archive the project (workspace), I'm getting errors like on screenshot below:
What I've tried so far:
Update cocoa pods to latest version…
iTKerry
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- 9
9
votes
2 answers
How do I fix 'bus error' when trying to do git-commit or git-status
I have a git repository on an OS X server that used to work fine. I was able to add files, commit them, and pull the content to my laptop.
Now, when I ssh into the server and do git commit or git status in the repository, all I see in the command…
Wilbo Baggins
- 2,701
- 3
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- 39
7
votes
2 answers
Why does "empty" loop cause bus error when compiling C program with clang -O2 on macOS?
I'm on macOS High Sierra.
$ uname -v
Darwin Kernel Version 17.2.0: Fri Sep 29 18:27:05 PDT 2017; root:xnu-4570.20.62~3/RELEASE_X86_64
I have the following synthesized program.
void nop1() {
for (;;);
}
void nop2() {
while (1);
}
void nop3()…
Karl Marklund
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- 10
7
votes
2 answers
Dereferencing function pointers in C to access CODE memory
We are dealing with C here. I'm just had this idea, wondering if it is possible to access the point in memory where a function is stored, say foo and copying the contents of the function to another point in memory. Specifically, I'm trying to get…
theideasmith
- 2,835
- 2
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6
votes
3 answers
Why does the following C program give a bus error?
I think it's the very first strtok call that's failing. It's been a while since I've written C and I'm at a loss. Thanks very much.
#include
#include
int main(int argc, char **argv) {
char *str = "one|two|three";
char *tok…
nc.
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6
votes
1 answer
I am getting a bus error in the following code
I am getting bus error in my code. With this code I am trying to convert numbers to words, but I know that there is a flaw in my logic. But before that, when I compile and run this code using g++ on Mac, I am trying to make this code run as it is…
Dangerous Scholar
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4
votes
3 answers
Bus error while running a simple string C program
I was running this simple program, the output i get is a "bus error". using some debugging statements i found the point at which it occurs was at the strcat() call.
#include
#include
main()
{
char *s = "this is ";
char *s1 = "me";…
Maverickgugu
- 767
- 4
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- 26
4
votes
2 answers
Bus Error when writing to mmaped data
When I first made this project last semester, the code worked fine. Now I get a bus error when the mmapped memory to share between processes is being written to and I'm not sure why it is not working anymore.
Account_Info *mapData()
{
int fd;
…
Hamon148
- 137
- 1
- 12
4
votes
1 answer
Program received signal SIGBUS: Access to an undefined portion of a memory object
I have this simple Fortran code and a function which I explicitly supply with an argument in the main program. The code is below:
implicit none
real*8 rrr,x
external tttt
x = rrr(10)
end
function rrr(seed)
integer seed, k
…
user3578925
- 881
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- 26
4
votes
1 answer
OS/X 64-bit assembly code generates bus error
I am trying to learn NASM on my 64-bit Macbook Pro. I have the following code where I am trying to assign the value of a variable to an initialised variable.
global start
default rel
section .data
a: dq 1
section .bss
b: resq …
soarjay
- 641
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3
votes
3 answers
Why does my 2D array cause a bus error in C?
I'm attempting to create a simple 2D array in C but apparently running into some memory trouble. My setup is simple enough and I can't tell what's wrong. I admit that my understanding of pointers is insufficient, but I still think this should be…
Josh Leitzel
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