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#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <limits.h>
#include "zdtmtst.h"
#if (LONG_MAX == 2147483647L) /* 32 bit */
#define TEST_SKIP_REASON "64-bit arch required"
#include "skip-me.c"
#else
const char *test_doc = "Test for huge VMA area";
const char *test_author = "Cyrill Gorcunov <gorcunov@openvz.org>";
int main(int argc, char **argv)
{
unsigned char *mem;
test_init(argc, argv);
test_msg("Alloc huge VMA\n");
mem = (void *)mmap(NULL, (10L << 30), PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if ((void *)mem == MAP_FAILED) {
pr_perror("mmap failed");
return -1;
}
mem[4L << 30] = 1;
mem[8L << 30] = 2;
test_daemon();
test_waitsig();
test_msg("Testing restored data\n");
if (mem[4L << 30] != 1 || mem[8L << 30] != 2) {
fail("Data corrupted!");
exit(1);
}
pass();
return 0;
}
#endif
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