gistfile1.txt

dogbert@dogbert-VirtualBox ~/repos/rakudo/nqp/MoarVM $ git diff
diff --git a/src/6model/reprs/VMArray.h b/src/6model/reprs/VMArray.h
index 6191356f..08e30998 100644
--- a/src/6model/reprs/VMArray.h
+++ b/src/6model/reprs/VMArray.h
@@ -1,7 +1,7 @@
 /* Concurrent use of a VMArray is erroneous. This debugging option will
  * catch bad usages. (Eventually, we will refactor VMArray to not have
  * this issue.) */
-#define MVM_ARRAY_CONC_DEBUG 0
+#define MVM_ARRAY_CONC_DEBUG 1
 
 /* Representation used by VM-level arrays. Adopted from QRPA work by
  * Patrick Michaud. */


dogbert@dogbert-VirtualBox ~/repos/rakudo/nqp/MoarVM $ cat ~/test.pl6 
my \a = lazy loop { 1 }; my \b = lazy loop { 1 }; for ^100000 -> $i { await start { a.AT-POS($i) }, start { b.AT-POS($i) } }



dogbert@dogbert-VirtualBox ~/repos/rakudo $ ./perl6 ~/test.pl6 
   at <unknown>:1  (./CORE.setting.moarvm:push)
 from SETTING::src/core/Iterator.pm:31  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterable.pm:97  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterator.pm:49  (./CORE.setting.moarvm:push-at-least)
 from SETTING::src/core/List.pm:41  (./CORE.setting.moarvm:reify-at-least)
 from SETTING::src/core/List.pm:477  (./CORE.setting.moarvm:AT-POS)
 from SETTING::src/core/Seq.pm:193  (./CORE.setting.moarvm:AT-POS)
 from /home/dogbert/test.pl6:1  (<ephemeral file>:)
 from SETTING::src/core/Promise.pm:216  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:284  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:167  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:165  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:163  (./CORE.setting.moarvm:)
 from SETTING::src/core/Thread.pm:30  (./CORE.setting.moarvm:THREAD-ENTRY)
   at <unknown>:1  (./CORE.setting.moarvm:push)
 from SETTING::src/core/Iterator.pm:31  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterable.pm:97  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterator.pm:49  (./CORE.setting.moarvm:push-at-least)
 from SETTING::src/core/List.pm:41  (./CORE.setting.moarvm:reify-at-least)
 from SETTING::src/core/List.pm:477  (./CORE.setting.moarvm:AT-POS)
 from SETTING::src/core/Seq.pm:193  (./CORE.setting.moarvm:AT-POS)
 from /home/dogbert/test.pl6:1  (<ephemeral file>:)
 from SETTING::src/core/Promise.pm:216  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:284  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:167  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:165  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:162  (./CORE.setting.moarvm:)
 from SETTING::src/core/Thread.pm:30  (./CORE.setting.moarvm:THREAD-ENTRY)
   at <unknown>:1  (./CORE.setting.moarvm:push)
   at <unknown>:1  (./CORE.setting.moarvm:push)
 from SETTING::src/core/Iterator.pm:31  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterable.pm:97  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterator.pm:49  (./CORE.setting.moarvm:push-at-least)
 from SETTING::src/core/List.pm:41  (./CORE.setting.moarvm:reify-at-least)
 from SETTING::src/core/List.pm:477  (./CORE.setting.moarvm:AT-POS)
 from SETTING::src/core/Seq.pm:193  (./CORE.setting.moarvm:AT-POS)
 from /home/dogbert/test.pl6:1  (<ephemeral file>:)
 from SETTING::src/core/Promise.pm:216  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:284  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:167  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:165  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:163  (./CORE.setting.moarvm:)
 from SETTING::src/core/Thread.pm:30  (./CORE.setting.moarvm:THREAD-ENTRY)
 from SETTING::src/core/Iterator.pm:31  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterable.pm:97  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterator.pm:49  (./CORE.setting.moarvm:push-at-least)
 from SETTING::src/core/List.pm:41  (./CORE.setting.moarvm:reify-at-least)
 from SETTING::src/core/List.pm:477  (./CORE.setting.moarvm:AT-POS)
 from SETTING::src/core/Seq.pm:193  (./CORE.setting.moarvm:AT-POS)
 from /home/dogbert/test.pl6:1  (<ephemeral file>:)
 from SETTING::src/core/Promise.pm:216  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:284  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:167  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:165  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:163  (./CORE.setting.moarvm:)
 from SETTING::src/core/Thread.pm:30  (./CORE.setting.moarvm:THREAD-ENTRY)
   at <unknown>:1  (./CORE.setting.moarvm:push)
 from SETTING::src/core/Iterator.pm:31  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterable.pm:97  (./CORE.setting.moarvm:push-exactly)
 from SETTING::src/core/Iterator.pm:49  (./CORE.setting.moarvm:push-at-least)
 from SETTING::src/core/List.pm:41  (./CORE.setting.moarvm:reify-at-least)
 from SETTING::src/core/List.pm:477  (./CORE.setting.moarvm:AT-POS)
 from SETTING::src/core/Seq.pm:193  (./CORE.setting.moarvm:AT-POS)
 from /home/dogbert/test.pl6:1  (<ephemeral file>:)
 from SETTING::src/core/Promise.pm:216  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:284  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:167  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:165  (./CORE.setting.moarvm:)
 from SETTING::src/core/ThreadPoolScheduler.pm:163  (./CORE.setting.moarvm:)
 from SETTING::src/core/Thread.pm:30  (./CORE.setting.moarvm:THREAD-ENTRY)