* vm_core.h (rb_thread_t): new member machine_stack_maxsize and

  machine_register_stack_maxsize.

* gc.c (rb_gc_stack_maxsize): new global variable for the thread size
  of the main thread.
  (STACK_LEVEL_MAX): use machine_stack_maxsize of current thread.
  (ruby_stack_check): check IA64 register stack.
  (ruby_set_stack_size): set rb_gc_stack_maxsize.
  (Init_stack): set rb_gc_stack_maxsize.

* thread_pthread.ci (native_thread_create): initialize
  th->machine_stack_maxsize and th->machine_register_stack_maxsize.

* vm.c (Init_BareVM): initialize th->machine_stack_maxsize and
  th->machine_register_stack_maxsize.

* thread_win32.ci (native_thread_create): initialize
  th->machine_stack_maxsize.  not tested.  just a guess at all.

[ruby-dev:32604]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 1 deletions

diff --git a/thread_pthread.ci b/thread_pthread.ci
index 9d5a7d3d79..6cf43dbeb3 100644
--- a/thread_pthread.ci
+++ b/thread_pthread.ci
@@ -280,13 +280,21 @@ native_thread_create(rb_thread_t *th)
     }
     else {
 	pthread_attr_t attr;
-	size_t stack_size = 1024 * 1024; /* 1024KB */
+	size_t stack_size = 512 * 1024; /* 512KB */
+        size_t space;
 
 #ifdef PTHREAD_STACK_MIN
 	if (stack_size < PTHREAD_STACK_MIN) {
 	    stack_size = PTHREAD_STACK_MIN * 2;
 	}
 #endif
+        space = stack_size/5;
+        if (space > 1024*1024) space = 1024*1024;
+        th->machine_stack_maxsize = stack_size - space;
+#ifdef __ia64
+        th->machine_stack_maxsize /= 2;
+        th->machine_register_stack_maxsize = th->machine_stack_maxsize;
+#endif
 
 	CHECK_ERR(pthread_attr_init(&attr));