naruse	2017-08-29 01:05:11 +0900 (Tue, 29 Aug 2017)

  New Revision: 59676

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59676

  Log:
    Increase STACKFRAME_FOR_CALL_CFUNC
    
    On below env, miniruby requires 568 and ruby requires 838 to pass.
    * ruby -v: ruby 2.5.0dev (2017-08-28 trunk 59670) [x86_64-freebsd10.3]
    * gcc8 (FreeBSD Ports Collection) 8.0.0 20170828 (experimental)

  Modified files:
    trunk/gc.c
Index: gc.c
===================================================================
--- gc.c	(revision 59675)
+++ gc.c	(revision 59676)
@@ -4033,7 +4033,7 @@ stack_check(rb_thread_t *th, int water_m https://github.com/ruby/ruby/blob/trunk/gc.c#L4033
 #define stack_check(th, water_mark) FALSE
 #endif
 
-#define STACKFRAME_FOR_CALL_CFUNC 512
+#define STACKFRAME_FOR_CALL_CFUNC 838
 
 int
 rb_threadptr_stack_check(rb_thread_t *th)

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