strncmp case fails in kernel space.

static void
test_strncmp (void)
{
  /* First test as strcmp with big counts, then test count code.  */
  it = "strncmp";
  
  check (strncmp ("a\203", "a", 2) > 0, 8);     /* Tricky if '\203' < 0 */
  check (strncmp ("a\203", "a\003", 2) > 0, 9);
  ...
}

root:/proc/sys/kernel> insmod /lib/modules/string_test.ko
strncmp flunked test 8
strncmp flunked test 9