Cygwin Exception : open stack dump file

Question

I am developing in C language a linux command interpreter on windows 7, using Cygwin. My code was compiling and running correctly, until I get this error:

cygwin_exception::open_stackdumpfile:Dumping stack trace to jstack dump

Answer 1

I find that I get this error when I try passing a value into a function when the funtion is expecting a pointer.

For example:

int arr[] = {1, 2, 3};
int i = 3;
memmove(i, arr, 3);

This code will get a cygwin_exception::open_stackdumpfile because you are passing int i, which is a value, into a function which is expecting a memory address.

However, this is based purely off of my experience and it is certainly possible that there are other causes for this error.

Answer 2

I just had this problem today. I found out that there was another cygwin session (shell) running in the background. Its possible that they affected each others memory locations/allocation. Once I killed them both, opened a new one, and everything back to normal! I hope it helps

Answer 3

I had this error trying to use memcpy(). The problem was that I was trying to copy an array into a non-initialized pointer.

The error code:

int array[] = {1, 2, 3, 4, 5};
int *arrPtr = array;
int *mem_ptr = NULL;                           // this row
memcpy(mem_ptr, array, 5 * sizeof(int));

How I solved:

int array[] = {1, 2, 3, 4, 5};
int *arrPtr = array;
int *mem_ptr = malloc(sizeof(int) * 5);       // this row
memcpy(mem_ptr, array, 5 * sizeof(int));