Segmentation fault when allocating large arrays on the stack

by

You’re blowing the stack with arr and color. Presumably when your call to scanf is commented out the compiler optimises all these variables away, but when it’s present it attempts to allocate memory on the stack.

Make the variables global, and read up on stack memory vs heap memory.

#include<stdio.h>

int arr[10002][10002];
int color[10002];

int main()
{
    int neigh;
    scanf("%d",&neigh);
    return 0;
}

More Related Contents:

  1. C/SDL – Segmentation fault when program run multiple times in succession [closed]
  2. Why is this segfaulting? Can someone explain the valgrind error?
  3. Segmentation fault, I don’t know why
  4. Seg fault on code that should work according to the professor [duplicate]
  5. Making an array using pointers in c
  6. my code does not work and I don’t know why ;-;
  7. Last word is Failing …?
  8. Why do I get a segmentation fault with strcmp [closed]
  9. Why do I get a segmentation fault when writing to a “char *s” initialized with a string literal, but not “char s[]”?
  10. Why is this string reversal C code causing a segmentation fault? [duplicate]
  11. What is a bus error? Is it different from a segmentation fault?
  12. segmentation fault using scanf [duplicate]
  13. Execution of printf() and Segmentation Fault
  14. What is the difference between a segmentation fault and a stack overflow?
  15. C – Segmentation Fault with strcmp?
  16. Getting Segmentation Fault
  17. Returning pointer from a function
  18. casting char[][] to char** causes segfault?
  19. Segmentation Fault before main
  20. Segmentation Fault in strcpy()
  21. strtok segmentation fault
  22. Segmentation Fault While Creating Large Arrays in C
  23. Returning this pointer from a function
  24. SegFault after scanf?
  25. segfault only when NOT using debugger
  26. Why is strtok causing a segmentation fault?
  27. What is the simplest standard conform way to produce a Segfault in C?
  28. Segmentation fault in btree implementation
  29. strlen not checking for NULL
  30. Why doesn’t my program seg fault when I dereference a NULL pointer inside of malloc?

Leave a Comment