We were using g++ (GCC) 3.4.6 20060404 (Red Hat 3.4.6.9) on Linux 2.6.24.14 SMP X86_64 GNU/Linux 4-core Intel @2.66GHz.

We executed: g++ -O0 test.cc

             ./a.out

./a.out causes segmentation fault.

The file test.cc folows below:

__thread int testarray[2];

int main()
{
  int i = 2;
  testarray[i-1] = 1;
  int p;
  p = testarray[i-1];
  p = p + 1;
  printf("%d\n", p);
  return 0;
}