src/cpu/x86/vm/vm_version_x86.cpp

*** 978,987 ****
--- 978,992 ----
  
    if (FLAG_IS_DEFAULT(ContendedPaddingWidth) &&
       (cache_line_size > ContendedPaddingWidth))
       ContendedPaddingWidth = cache_line_size;
  
+   // This machine allows unaligned memory accesses
+   if (FLAG_IS_DEFAULT(UseUnalignedAccesses)) {
+     FLAG_SET_DEFAULT(UseUnalignedAccesses, true);
+   }
+ 
  #ifndef PRODUCT
    if (PrintMiscellaneous && Verbose) {
      tty->print_cr("Logical CPUs per core: %u",
                    logical_processors_per_package());
      tty->print_cr("L1 data cache line size: %u", L1_data_cache_line_size());