mame	2018-01-09 12:47:22 +0900 (Tue, 09 Jan 2018)

  New Revision: 61706

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61706

  Log:
    Explicit failure in VM_CHECK_MODE when failing to create timer thread
    
    "warning: pthread_create failed for timer: Resource temporarily
    unavailable, scheduling broken" still occurs randomly.  This change will
    allow us to debug the issue.

  Modified files:
    trunk/thread_pthread.c
Index: thread_pthread.c
===================================================================
--- thread_pthread.c	(revision 61705)
+++ thread_pthread.c	(revision 61706)
@@ -1603,6 +1603,7 @@ rb_thread_create_timer_thread(void) https://github.com/ruby/ruby/blob/trunk/thread_pthread.c#L1603
 	if (err != 0) {
 	    rb_warn("pthread_attr_init failed for timer: %s, scheduling broken",
 		    strerror(err));
+	    VM_ASSERT(err == 0);
 	    return;
         }
 # ifdef PTHREAD_STACK_MIN

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