//
// Make sure to do
//
//     echo never >/sys/kernel/mm/transparent_hugepage/enabled
//
// to disable THP for this stupid test-case.

#include <stdio.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>

#define SIZE (1024*1024*1024)

int main(int argc, char **argv)
{
	void *addr, *start;
	int i;

	start = 8192 + mmap(NULL, 4096, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);
	start = (void *)(8192 | (unsigned long) start);

	for (i = 0; i < 100; i++) {
		unsigned int j;
		addr = mmap(start, SIZE, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);
		for (j = 0; j < SIZE; j += 4096) {
			*(volatile int *)(j+addr);
		}
		munmap(addr, SIZE);
	}
	return 0;
}