arm32, x86_32:

/home/buildbot/worker/build-jdkX-linux/build/src/hotspot/share/oops/klassVtable.cpp: In static member function 'static void klassItable::print_statistics()':
/home/buildbot/worker/build-jdkX-linux/build/src/hotspot/share/oops/klassVtable.cpp:1613:118: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Werror=format=]
  tty->print_cr("%6lu K uses for itables (average by class: %ld bytes)", _total_size / K, _total_size / _total_classes);
                                                                                                                      ^
/home/buildbot/worker/build-jdkX-linux/build/src/hotspot/share/oops/klassVtable.cpp:1613:118: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t {aka unsigned int}' [-Werror=format=]
At global scope: