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-rw-r--r--erts/emulator/test/node_container_SUITE.erl41
1 files changed, 39 insertions, 2 deletions
diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl
index af18545bff..7356f31b75 100644
--- a/erts/emulator/test/node_container_SUITE.erl
+++ b/erts/emulator/test/node_container_SUITE.erl
@@ -50,7 +50,8 @@
port_wrap/1,
bad_nc/1,
unique_pid/1,
- iter_max_procs/1]).
+ iter_max_procs/1,
+ magic_ref/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
@@ -62,7 +63,7 @@ all() ->
node_table_gc, dist_link_refc, dist_monitor_refc,
node_controller_refc, ets_refc, match_spec_refc,
timer_refc, otp_4715, pid_wrap, port_wrap, bad_nc,
- unique_pid, iter_max_procs].
+ unique_pid, iter_max_procs, magic_ref].
init_per_suite(Config) ->
Config.
@@ -889,10 +890,46 @@ chk_max_proc_line_until(NoMoreTests, Res) ->
chk_max_proc_line_until(NoMoreTests, Res)
end.
+magic_ref(Config) when is_list(Config) ->
+ {MRef0, Addr0} = erts_debug:set_internal_state(make, magic_ref),
+ true = is_reference(MRef0),
+ {Addr0, 1, true} = erts_debug:get_internal_state({magic_ref,MRef0}),
+ MRef1 = binary_to_term(term_to_binary(MRef0)),
+ {Addr0, 2, true} = erts_debug:get_internal_state({magic_ref,MRef1}),
+ MRef0 = MRef1,
+ Me = self(),
+ {Pid, Mon} = spawn_opt(fun () ->
+ receive
+ {Me, MRef} ->
+ Me ! {self(), erts_debug:get_internal_state({magic_ref,MRef})}
+ end
+ end,
+ [link, monitor]),
+ Pid ! {self(), MRef0},
+ receive
+ {Pid, Info} ->
+ {Addr0, 3, true} = Info
+ end,
+ receive
+ {'DOWN', Mon, process, Pid, _} ->
+ ok
+ end,
+ {Addr0, 2, true} = erts_debug:get_internal_state({magic_ref,MRef0}),
+ id(MRef0),
+ id(MRef1),
+ MRefExt = term_to_binary(erts_debug:set_internal_state(make, magic_ref)),
+ garbage_collect(),
+ {MRef2, _Addr2} = binary_to_term(MRefExt),
+ true = is_reference(MRef2),
+ true = erts_debug:get_internal_state({magic_ref,MRef2}),
+ ok.
%%
%% -- Internal utils ---------------------------------------------------------
%%
+id(X) ->
+ X.
+
-define(ND_REFS, erts_debug:get_internal_state(node_and_dist_references)).
node_container_refc_check(Node) when is_atom(Node) ->