File 1380-erts-Remove-test-map_SUITE-t_large_unequal_bins_same.patch of Package erlang

From 6642db65f76882e22d0a2cf99fccf78f956fe753 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Tue, 3 Feb 2026 16:11:07 +0100
Subject: [PATCH] erts: Remove test
 map_SUITE:t_large_unequal_bins_same_hash_bug

* Caused out-of-memory sometimes with its large binary creation.

* Has lost its relevance since hashmap collision nodes were implemented.
  And collision nodes are tested by other tests.

* Did not seem to test the targeted bug (OTP-15707) anyway,
  where the two binaries should have identical ingresses of 4GB.
---
 erts/emulator/test/map_SUITE.erl | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index d8e40162e4..1ab39d4638 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -90,9 +90,6 @@
          y_regs/1,
          badmap_17/1,
 
-         %% Bugs
-         t_large_unequal_bins_same_hash_bug/1,
-
 	 %% Display
 	 t_map_display/1]).
 
@@ -176,9 +173,6 @@ groups() ->
        t_has_map_fields,
        y_regs,
 
-       %% Bugs
-       t_large_unequal_bins_same_hash_bug,
-
        %% Display
        t_map_display]},
      {once,[],[badmap_17]}].
@@ -3850,27 +3844,6 @@ fannerl() ->
       254,64,0,0,0,104,2,97,11,97,16,70,191,119,121,234,0,0,0,0,104,2,97,12,97,
       16,70,63,149,12,170,128,0,0,0,104,2,97,13,97,16,70,191,144,193,191,0,0,0,0>>.
 
-%% This test case checks that the bug with ticket number OTP-15707 is
-%% fixed. The bug could cause a crash or memory usage to grow until
-%% the machine ran out of memory.
-t_large_unequal_bins_same_hash_bug(Config) when is_list(Config) ->
-    run_when_enough_resources(
-      fun() ->
-              K1 = get_4GB_bin(1),
-              K2 = get_4GB_bin(2),
-              Map = make_map(500),
-              Map2 = maps:put(K1, 42, Map),
-              %% The map needed to contain at least 32 key-value pairs
-              %% at this point to get the crash or out of memory
-              %% problem on the next line
-              Map3 = maps:put(K2, 43, Map2),
-              %% The following line should avoid that the compiler
-              %% optimizes away the above
-              io:format("~p ~p~n", [erlang:phash2(Map3), maps:size(Map3)])
-      end).
-
-
-
 make_map(0) -> 
     #{};
 make_map(Size) ->
-- 
2.51.0