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-rw-r--r--lib/kernel/doc/src/kernel_app.xml11
-rw-r--r--lib/kernel/src/application_controller.erl19
-rw-r--r--lib/kernel/test/application_SUITE.erl30
-rw-r--r--lib/kernel/test/application_SUITE_data/Makefile.src5
-rw-r--r--lib/kernel/test/application_SUITE_data/deadlock/deadlock.app8
-rw-r--r--lib/kernel/test/application_SUITE_data/deadlock/deadlock.erl69
6 files changed, 137 insertions, 5 deletions
diff --git a/lib/kernel/doc/src/kernel_app.xml b/lib/kernel/doc/src/kernel_app.xml
index bf513b7815..0f71a4f0f2 100644
--- a/lib/kernel/doc/src/kernel_app.xml
+++ b/lib/kernel/doc/src/kernel_app.xml
@@ -4,7 +4,7 @@
<appref>
<header>
<copyright>
- <year>1996</year><year>2009</year>
+ <year>1996</year><year>2011</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -231,6 +231,15 @@ MaxT = TickTime + TickTime / 4</code>
<p><em>Note:</em> Normally, a terminating node is detected
immediately.</p>
</item>
+ <tag><c>shutdown_timeout = integer() | infinity</c></tag>
+ <item>
+ <p>Specifies the time <c>application_controller</c> will wait
+ for an application to terminate during node shutdown. If the
+ timer expires, <c>application_controller</c> will brutally
+ kill <c>application_master</c> of the hanging
+ application. If this parameter is undefined, it defaults
+ to <c>infinity</c>.</p>
+ </item>
<tag><c>sync_nodes_mandatory = [NodeName]</c></tag>
<item>
<p>Specifies which other nodes <em>must</em> be alive in order
diff --git a/lib/kernel/src/application_controller.erl b/lib/kernel/src/application_controller.erl
index 42f527f400..ebfe84463a 100644
--- a/lib/kernel/src/application_controller.erl
+++ b/lib/kernel/src/application_controller.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -1180,10 +1180,27 @@ terminate(Reason, S) ->
_ ->
ok
end,
+ ShutdownTimeout =
+ case application:get_env(kernel, shutdown_timeout) of
+ undefined -> infinity;
+ {ok,T} -> T
+ end,
foreach(fun({_AppName, Id}) when is_pid(Id) ->
+ Ref = erlang:monitor(process, Id),
+ unlink(Id),
exit(Id, shutdown),
receive
+ %% Proc died before link
{'EXIT', Id, _} -> ok
+ after 0 ->
+ receive
+ {'DOWN', Ref, process, Id, _} -> ok
+ after ShutdownTimeout ->
+ exit(Id, kill),
+ receive
+ {'DOWN', Ref, process, Id, _} -> ok
+ end
+ end
end;
(_) -> ok
end,
diff --git a/lib/kernel/test/application_SUITE.erl b/lib/kernel/test/application_SUITE.erl
index 2c5b8ccb66..f469a0af98 100644
--- a/lib/kernel/test/application_SUITE.erl
+++ b/lib/kernel/test/application_SUITE.erl
@@ -33,7 +33,7 @@
-export([config_change/1,
distr_changed_tc1/1, distr_changed_tc2/1,
- shutdown_func/1, do_shutdown/1]).
+ shutdown_func/1, do_shutdown/1, shutdown_timeout/1]).
-define(TESTCASE, testcase_name).
-define(testcase, ?config(?TESTCASE, Config)).
@@ -50,7 +50,7 @@ all() ->
load_use_cache, {group, reported_bugs}, start_phases,
script_start, nodedown_start, permit_false_start_local,
permit_false_start_dist, get_key,
- {group, distr_changed}, config_change, shutdown_func].
+ {group, distr_changed}, config_change, shutdown_func, shutdown_timeout].
groups() ->
[{reported_bugs, [],
@@ -1915,6 +1915,32 @@ do_shutdown(Reason) ->
+%%%-----------------------------------------------------------------
+%%% Tests the 'shutdown_timeout' kernel config parameter
+%%%-----------------------------------------------------------------
+shutdown_timeout(Config) when is_list(Config) ->
+ DataDir = ?config(data_dir,Config),
+ {ok,Cp1} = start_node(?MODULE_STRING++"_shutdown_timeout"),
+ wait_for_ready_net(),
+ ok = rpc:call(Cp1, application, set_env, [kernel, shutdown_timeout, 1000]),
+ rpc:call(Cp1, code, add_path, [filename:join([DataDir,deadlock])]),
+ ok = rpc:call(Cp1, application, start, [sasl]),
+ ok = rpc:call(Cp1, application, start, [deadlock]),
+ rpc:call(Cp1, deadlock, restart_and_fail, []),
+
+ ok = net_kernel:monitor_nodes(true),
+ _ = rpc:call(Cp1, init, stop, []),
+ receive
+ {nodedown,Cp1} ->
+ ok
+ after 10000 ->
+ ct:fail("timeout 10 sec: node termination hangs")
+ end,
+ ok.
+
+
+
+
%%-----------------------------------------------------------------
%% Utility functions
%%-----------------------------------------------------------------
diff --git a/lib/kernel/test/application_SUITE_data/Makefile.src b/lib/kernel/test/application_SUITE_data/Makefile.src
index a237f6badb..abc3c82907 100644
--- a/lib/kernel/test/application_SUITE_data/Makefile.src
+++ b/lib/kernel/test/application_SUITE_data/Makefile.src
@@ -2,7 +2,8 @@ EFLAGS=+debug_info
all: app_start_error.@EMULATOR@ trans_abnormal_sup.@EMULATOR@ \
trans_normal_sup.@EMULATOR@ transient.@EMULATOR@ \
- group_leader_sup.@EMULATOR@ group_leader.@EMULATOR@
+ group_leader_sup.@EMULATOR@ group_leader.@EMULATOR@ \
+ deadlock/deadlock.@EMULATOR@
app_start_error.@EMULATOR@: app_start_error.erl
erlc $(EFLAGS) app_start_error.erl
@@ -22,3 +23,5 @@ group_leader.@EMULATOR@: group_leader.erl
group_leader_sup.@EMULATOR@: group_leader_sup.erl
erlc $(EFLAGS) group_leader_sup.erl
+deadlock/deadlock.@EMULATOR@: deadlock/deadlock.erl
+ erlc $(EFLAGS) -o deadlock deadlock/deadlock.erl \ No newline at end of file
diff --git a/lib/kernel/test/application_SUITE_data/deadlock/deadlock.app b/lib/kernel/test/application_SUITE_data/deadlock/deadlock.app
new file mode 100644
index 0000000000..0c1001bed6
--- /dev/null
+++ b/lib/kernel/test/application_SUITE_data/deadlock/deadlock.app
@@ -0,0 +1,8 @@
+{application, deadlock, [
+ {vsn, "1"},
+ {registered, []},
+ {applications, [kernel, stdlib, sasl]},
+ {modules, [deadlock]},
+ {mod, {deadlock, []}},
+ {env, [{fail_start, false}]}
+]}.
diff --git a/lib/kernel/test/application_SUITE_data/deadlock/deadlock.erl b/lib/kernel/test/application_SUITE_data/deadlock/deadlock.erl
new file mode 100644
index 0000000000..5f68bf9078
--- /dev/null
+++ b/lib/kernel/test/application_SUITE_data/deadlock/deadlock.erl
@@ -0,0 +1,69 @@
+-module(deadlock).
+-behaviour(application).
+-compile(export_all).
+-define(SUP,deadlock_sup).
+-define(CHILD,deadlock_child).
+
+
+%%%-----------------------------------------------------------------
+%%% application callbacks
+start(_StartType, _StartArgs) ->
+ supervisor:start_link({local, ?SUP}, ?MODULE, [sup]).
+
+stop(_State) ->
+ ok.
+
+
+
+%%%-----------------------------------------------------------------
+%%% supervisor callbacks
+init([sup]) ->
+ {ok, {{one_for_one, 5, 10}, [
+ {
+ sasl_syslog_dm, {?MODULE, start_link, []},
+ permanent, brutal_kill, worker,
+ [deadlock]
+ }
+ ]}};
+
+
+%%%-----------------------------------------------------------------
+%%% gen_server callbacks
+init([child]) ->
+ case application:get_env(deadlock, fail_start) of
+ {ok, false} ->
+ %% we must not fail on the first init, otherwise supervisor
+ %% terminates immediately
+ {ok, []};
+ {ok, true} ->
+ timer:sleep(infinity), % init hangs!!!!
+ {ok, []}
+ end.
+
+handle_call(_Req, _From, State) ->
+ {reply, ok, State}.
+
+handle_cast(restart, State) ->
+ {stop, error, State}.
+
+handle_info(_Msg, State) ->
+ {noreply, State}.
+
+terminate(_Reason, _State) ->
+ ok.
+
+code_change(_OldVsn, State, _Extra) ->
+ {ok, State}.
+
+
+%%%-----------------------------------------------------------------
+%%% Start child
+start_link() ->
+ gen_server:start_link({local, ?CHILD}, ?MODULE, [child], []).
+
+
+%%%-----------------------------------------------------------------
+%%% Provoke hanging
+restart_and_fail() ->
+ application:set_env(deadlock, fail_start, true), % next init will hang
+ gen_server:cast(?CHILD, restart).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 02:05:13 +0000