From beb883ed443dfeb41f239363f36c511dd43c7eec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= <egil@erlang.org>
Date: Thu, 7 May 2015 11:58:23 +0200
Subject: erts: Fix ETS db_has_variable check for large Maps

---
 erts/emulator/beam/erl_db_util.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index be988f0621..a75267ca97 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -3411,6 +3411,11 @@ int db_has_variable(Eterm node) {
                 while (size--) {
                     ESTACK_PUSH(s, *(values++));
                 }
+            } else if (is_map(node)) { /* other map-nodes or map-heads */
+                Eterm *ptr = hashmap_val(node);
+                int i = hashmap_bitcount(MAP_HEADER_VAL(*ptr));
+                ptr += MAP_HEADER_ARITY(*ptr);
+                while(i--) { ESTACK_PUSH(s, *++ptr); }
             }
 	    break;
 	case TAG_PRIMARY_IMMED1:
-- 
cgit v1.2.3