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-rw-r--r--erts/emulator/beam/erl_map.c2
-rw-r--r--erts/emulator/test/nif_SUITE.erl16
2 files changed, 17 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c
index cba17d3e6a..8f96dc3d23 100644
--- a/erts/emulator/beam/erl_map.c
+++ b/erts/emulator/beam/erl_map.c
@@ -475,7 +475,7 @@ Eterm erts_hashmap_from_array(ErtsHeapFactory* factory, Eterm *leafs, Uint n,
Eterm erts_map_from_ks_and_vs(ErtsHeapFactory *factory, Eterm *ks0, Eterm *vs0, Uint n)
{
- if (n < MAP_SMALL_MAP_LIMIT) {
+ if (n <= MAP_SMALL_MAP_LIMIT) {
Eterm *ks, *vs, *hp;
flatmap_t *mp;
Eterm keys;
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index a2f3489943..ca5f90621f 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -1175,6 +1175,15 @@ maps(Config) when is_list(Config) ->
M2 = maps_from_list_nif(maps:to_list(M2)),
M3 = maps_from_list_nif(maps:to_list(M3)),
+ %% Test different map sizes (OTP-15567)
+ repeat_while(fun({35,_}) -> false;
+ ({K,Map}) ->
+ Map = maps_from_list_nif(maps:to_list(Map)),
+ Map = maps:filter(fun(K,V) -> V =:= K*100 end, Map),
+ {K+1, maps:put(K,K*100,Map)}
+ end,
+ {1,#{}}),
+
has_duplicate_keys = maps_from_list_nif([{1,1},{1,1}]),
verify_tmpmem(TmpMem),
@@ -2471,6 +2480,13 @@ repeat(0, _, Arg) ->
repeat(N, Fun, Arg0) ->
repeat(N-1, Fun, Fun(Arg0)).
+repeat_while(Fun, Acc0) ->
+ case Fun(Acc0) of
+ false -> ok;
+ Acc1 ->
+ repeat_while(Fun, Acc1)
+ end.
+
check(Exp,Got,Line) ->
case Got of
Exp -> Exp;