src/os/linux/vm/os_linux.cpp

*** 1897,1907 ****
    if (!_stack_is_executable) {
      JavaThread *jt = Threads::first();
  
      while (jt) {
        if (!jt->stack_guard_zone_unused() &&        // Stack not yet fully initialized
!           jt->stack_yellow_zone_enabled()) {       // No pending stack overflow exceptions
          if (!os::guard_memory((char *) jt->stack_red_zone_base() - jt->stack_red_zone_size(),
                                jt->stack_yellow_zone_size() + jt->stack_red_zone_size())) {
            warning("Attempt to reguard stack yellow zone failed.");
          }
        }
--- 1897,1907 ----
    if (!_stack_is_executable) {
      JavaThread *jt = Threads::first();
  
      while (jt) {
        if (!jt->stack_guard_zone_unused() &&     // Stack not yet fully initialized
!           jt->stack_guards_enabled()) {         // No pending stack overflow exceptions
          if (!os::guard_memory((char *) jt->stack_red_zone_base() - jt->stack_red_zone_size(),
                                jt->stack_yellow_zone_size() + jt->stack_red_zone_size())) {
            warning("Attempt to reguard stack yellow zone failed.");
          }
        }
*** 4646,4655 ****
--- 4646,4660 ----
    // number of initial guard pages.  The user can change this with the
    // command line arguments, if needed.
    if (vm_page_size() > (int)Linux::vm_default_page_size()) {
      StackYellowPages = 1;
      StackRedPages = 1;
+ #if defined(IA32) || defined(IA64)
+     StackReservedPages = 1;
+ #else
+     StackReservedPages = 0;
+ #endif
      StackShadowPages = round_to((StackShadowPages*Linux::vm_default_page_size()), vm_page_size()) / vm_page_size();
    }
  
    // retrieve entry point for pthread_setname_np
    Linux::_pthread_setname_np =
*** 4707,4717 ****
    // the java system classes, including StackOverflowError - depends on page
    // size.  Add a page for compiler2 recursion in main thread.
    // Add in 2*BytesPerWord times page size to account for VM stack during
    // class initialization depending on 32 or 64 bit VM.
    os::Linux::min_stack_allowed = MAX2(os::Linux::min_stack_allowed,
!                                       (size_t)(StackYellowPages+StackRedPages+StackShadowPages) * Linux::page_size() +
                                        (2*BytesPerWord COMPILER2_PRESENT(+1)) * Linux::vm_default_page_size());
  
    size_t threadStackSizeInBytes = ThreadStackSize * K;
    if (threadStackSizeInBytes != 0 &&
        threadStackSizeInBytes < os::Linux::min_stack_allowed) {
--- 4712,4722 ----
    // the java system classes, including StackOverflowError - depends on page
    // size.  Add a page for compiler2 recursion in main thread.
    // Add in 2*BytesPerWord times page size to account for VM stack during
    // class initialization depending on 32 or 64 bit VM.
    os::Linux::min_stack_allowed = MAX2(os::Linux::min_stack_allowed,
!                                       (size_t)(StackReservedPages+StackYellowPages+StackRedPages+StackShadowPages) * Linux::page_size() +
                                        (2*BytesPerWord COMPILER2_PRESENT(+1)) * Linux::vm_default_page_size());
  
    size_t threadStackSizeInBytes = ThreadStackSize * K;
    if (threadStackSizeInBytes != 0 &&
        threadStackSizeInBytes < os::Linux::min_stack_allowed) {