aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/test
diff options
context:
space:
mode:
authorRickard Green <[email protected]>2019-03-21 16:28:15 +0100
committerRickard Green <[email protected]>2019-03-21 16:28:15 +0100
commit2e599cf4c3176d50240a6b1f72e34213c4f8de5d (patch)
treeecc295ea2e89c81f6cd16d1147e90907a52af215 /erts/emulator/test
parent99d91508edc97d66ad26dd7b6eaf1fc0888882a9 (diff)
parent984ccc38e160963bfd1a70f408365cba45245cad (diff)
downloadotp-2e599cf4c3176d50240a6b1f72e34213c4f8de5d.tar.gz
otp-2e599cf4c3176d50240a6b1f72e34213c4f8de5d.tar.bz2
otp-2e599cf4c3176d50240a6b1f72e34213c4f8de5d.zip
Merge branch 'maint'
* maint: Fix reception of resume signal on process executing dirty
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/dirty_bif_SUITE.erl54
1 files changed, 52 insertions, 2 deletions
diff --git a/erts/emulator/test/dirty_bif_SUITE.erl b/erts/emulator/test/dirty_bif_SUITE.erl
index 46eb0cba58..4f5ad0295a 100644
--- a/erts/emulator/test/dirty_bif_SUITE.erl
+++ b/erts/emulator/test/dirty_bif_SUITE.erl
@@ -38,7 +38,8 @@
dirty_process_info/1,
dirty_process_register/1,
dirty_process_trace/1,
- code_purge/1]).
+ code_purge/1,
+ otp_15688/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -64,7 +65,8 @@ all() ->
dirty_process_info,
dirty_process_register,
dirty_process_trace,
- code_purge].
+ code_purge,
+ otp_15688].
init_per_suite(Config) ->
case erlang:system_info(dirty_cpu_schedulers) of
@@ -498,10 +500,58 @@ code_purge(Config) when is_list(Config) ->
true = Time =< 1000,
ok.
+otp_15688(Config) when is_list(Config) ->
+ ImBack = make_ref(),
+ {See, SeeMon} = spawn_monitor(fun () ->
+ erts_debug:dirty_io(wait, 2000),
+ exit(ImBack)
+ end),
+ wait_until(fun () ->
+ [{current_function, {erts_debug, dirty_io, 2}},
+ {status, running}]
+ == process_info(See,
+ [current_function, status])
+ end),
+ {Ser1, Ser1Mon} = spawn_monitor(fun () ->
+ erlang:suspend_process(See,
+ [asynchronous])
+ end),
+ erlang:suspend_process(See, [asynchronous]),
+ receive {'DOWN', Ser1Mon, process, Ser1, normal} -> ok end,
+
+ %% Verify that we sent the suspend request while it was executing dirty...
+ [{current_function, {erts_debug, dirty_io, 2}},
+ {status, running}] = process_info(See, [current_function, status]),
+
+ wait_until(fun () ->
+ {status, suspended} == process_info(See, status)
+ end),
+ erlang:resume_process(See),
+
+ receive
+ {'DOWN', SeeMon, process, See, Reason} ->
+ ImBack = Reason
+ after 4000 ->
+ %% Resume bug seems to have hit us...
+ PI = process_info(See),
+ exit(See, kill),
+ ct:fail({suspendee_stuck, PI})
+ end.
+
+
%%
%% Internal...
%%
+wait_until(Fun) ->
+ case Fun() of
+ true ->
+ ok;
+ _ ->
+ receive after 100 -> ok end,
+ wait_until(Fun)
+ end.
+
access_dirty_process(Config, Start, Test, Finish) ->
{ok, Node} = start_node(Config, ""),
[ok] = mcall(Node,