src/hotspot/os/linux/os_linux.cpp

*** 824,836 ****
          (GetMinStack)dlsym(RTLD_DEFAULT, "__pthread_get_minstack");
    log_info(os, thread)("Lookup of __pthread_get_minstack %s",
                         _get_minstack_func == NULL ? "failed" : "succeeded");
  }
  
  // Returns the size of the static TLS area glibc puts on thread stacks.
  static size_t get_static_tls_area_size(const pthread_attr_t *attr) {
!   size_t tls_size = 0;
    if (_get_minstack_func != NULL) {
      // Obtain the pthread minstack size by calling __pthread_get_minstack.
      size_t minstack_size = _get_minstack_func(attr);
  
      // Remove non-TLS area size included in minstack size returned
--- 824,840 ----
          (GetMinStack)dlsym(RTLD_DEFAULT, "__pthread_get_minstack");
    log_info(os, thread)("Lookup of __pthread_get_minstack %s",
                         _get_minstack_func == NULL ? "failed" : "succeeded");
  }
  
+ static bool tls_size_inited = false;
+ static size_t tls_size = 0;
  // Returns the size of the static TLS area glibc puts on thread stacks.
  static size_t get_static_tls_area_size(const pthread_attr_t *attr) {
!   if (!tls_size_inited) {
!     tls_size_inited = true;
! 
      if (_get_minstack_func != NULL) {
        // Obtain the pthread minstack size by calling __pthread_get_minstack.
        size_t minstack_size = _get_minstack_func(attr);
  
        // Remove non-TLS area size included in minstack size returned
*** 857,866 ****
--- 861,871 ----
        // if check is done for precaution.
        if (minstack_size > (size_t)os::vm_page_size() + PTHREAD_STACK_MIN) {
          tls_size = minstack_size - os::vm_page_size() - PTHREAD_STACK_MIN;
        }
      }
+   }
  
    log_info(os, thread)("Stack size adjustment for TLS is " SIZE_FORMAT,
                         tls_size);
    return tls_size;
  }