src/hotspot/os/linux/os_linux.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 717,727 ****
  bool os::Linux::manually_expand_stack(JavaThread * t, address addr) {
    assert(t!=NULL, "just checking");
    assert(t->osthread()->expanding_stack(), "expand should be set");
    assert(t->stack_base() != NULL, "stack_base was not initialized");
  
!   if (addr <  t->stack_base() && addr >= t->stack_reserved_zone_base()) {
      sigset_t mask_all, old_sigset;
      sigfillset(&mask_all);
      pthread_sigmask(SIG_SETMASK, &mask_all, &old_sigset);
      _expand_stack_to(addr);
      pthread_sigmask(SIG_SETMASK, &old_sigset, NULL);
--- 717,727 ----
  bool os::Linux::manually_expand_stack(JavaThread * t, address addr) {
    assert(t!=NULL, "just checking");
    assert(t->osthread()->expanding_stack(), "expand should be set");
    assert(t->stack_base() != NULL, "stack_base was not initialized");
  
!   if (t->is_in_usable_stack(addr)) {
      sigset_t mask_all, old_sigset;
      sigfillset(&mask_all);
      pthread_sigmask(SIG_SETMASK, &mask_all, &old_sigset);
      _expand_stack_to(addr);
      pthread_sigmask(SIG_SETMASK, &old_sigset, NULL);