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-rw-r--r--lib/stdlib/test/ets_SUITE.erl105
1 files changed, 80 insertions, 25 deletions
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index c9d82ec5f5..57df963ae2 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -72,6 +72,7 @@
exit_many_many_tables_owner/1]).
-export([write_concurrency/1, heir/1, give_away/1, setopts/1]).
-export([bad_table/1, types/1]).
+-export([otp_9423/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
%% Convenience for manual testing
@@ -143,7 +144,8 @@ all() ->
otp_8166, exit_large_table_owner,
exit_many_large_table_owner, exit_many_tables_owner,
exit_many_many_tables_owner, write_concurrency, heir,
- give_away, setopts, bad_table, types].
+ give_away, setopts, bad_table, types,
+ otp_9423].
groups() ->
[{new, [],
@@ -817,6 +819,14 @@ t_delete_all_objects(Config) when is_list(Config) ->
repeat_for_opts(t_delete_all_objects_do),
?line verify_etsmem(EtsMem).
+get_kept_objects(T) ->
+ case ets:info(T,stats) of
+ false ->
+ 0;
+ {_,_,_,_,_,_,KO} ->
+ KO
+ end.
+
t_delete_all_objects_do(Opts) ->
?line T=ets_new(x,Opts),
?line filltabint(T,4000),
@@ -826,10 +836,10 @@ t_delete_all_objects_do(Opts) ->
?line true = ets:delete_all_objects(T),
?line '$end_of_table' = ets:next(T,O),
?line 0 = ets:info(T,size),
- ?line 4000 = ets:info(T,kept_objects),
+ ?line 4000 = get_kept_objects(T),
?line ets:safe_fixtable(T,false),
?line 0 = ets:info(T,size),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
?line filltabint(T,4000),
?line 4000 = ets:info(T,size),
?line true = ets:delete_all_objects(T),
@@ -859,10 +869,10 @@ t_delete_object_do(Opts) ->
?line ets:delete_object(T,{First, integer_to_list(First)}),
?line Next = ets:next(T,First),
?line 3999 = ets:info(T,size),
- ?line 1 = ets:info(T,kept_objects),
+ ?line 1 = get_kept_objects(T),
?line ets:safe_fixtable(T,false),
?line 3999 = ets:info(T,size),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
?line ets:delete(T),
?line T1 = ets_new(x,[ordered_set | Opts]),
?line filltabint(T1,4000),
@@ -2715,7 +2725,8 @@ ordered_do(Opts) ->
9,10,11,12,
1,2,3,4,
17,18,19,20,
- 13,14,15,16
+ 13,14,15,16,
+ 1 bsl 33
],
?line lists:foreach(fun(X) ->
ets:insert(T,{X,integer_to_list(X)})
@@ -2730,13 +2741,14 @@ ordered_do(Opts) ->
?line S2 = L2,
?line [{1,"1"}] = ets:slot(T,0),
?line [{28,"28"}] = ets:slot(T,27),
+ ?line [{1 bsl 33,_}] = ets:slot(T,28),
?line 27 = ets:prev(T,28),
?line [{7,"7"}] = ets:slot(T,6),
- ?line '$end_of_table' = ets:next(T,28),
+ ?line '$end_of_table' = ets:next(T,1 bsl 33),
?line [{12,"12"}] = ets:slot(T,11),
- ?line '$end_of_table' = ets:slot(T,28),
+ ?line '$end_of_table' = ets:slot(T,29),
?line [{1,"1"}] = ets:slot(T,0),
- ?line 28 = ets:prev(T,29),
+ ?line 28 = ets:prev(T,1 bsl 33),
?line 1 = ets:next(T,0),
?line pick_all_forward(T),
?line [{7,"7"}] = ets:slot(T,6),
@@ -4967,7 +4979,7 @@ grow_pseudo_deleted_do(Type) ->
[true]}]),
Left = Mult*(Mod-1),
?line Left = ets:info(T,size),
- ?line Mult = ets:info(T,kept_objects),
+ ?line Mult = get_kept_objects(T),
filltabstr(T,Mult),
spawn_opt(fun()-> ?line true = ets:info(T,fixed),
Self ! start,
@@ -4981,7 +4993,7 @@ grow_pseudo_deleted_do(Type) ->
?line true = ets:safe_fixtable(T,false),
io:format("Unfix table done. ~p nitems=~p\n",[now(),ets:info(T,size)]),
?line false = ets:info(T,fixed),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
?line done = receive_any(),
%%verify_table_load(T), % may fail if concurrency is poor (genny)
ets:delete(T),
@@ -5008,7 +5020,7 @@ shrink_pseudo_deleted_do(Type) ->
[{'>', '$1', Half}],
[true]}]),
?line Half = ets:info(T,size),
- ?line Half = ets:info(T,kept_objects),
+ ?line Half = get_kept_objects(T),
spawn_opt(fun()-> ?line true = ets:info(T,fixed),
Self ! start,
io:format("Starting to delete... ~p\n",[now()]),
@@ -5021,7 +5033,7 @@ shrink_pseudo_deleted_do(Type) ->
?line true = ets:safe_fixtable(T,false),
io:format("Unfix table done. ~p nitems=~p\n",[now(),ets:info(T,size)]),
?line false = ets:info(T,fixed),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
?line done = receive_any(),
%%verify_table_load(T), % may fail if concurrency is poor (genny)
ets:delete(T),
@@ -5137,7 +5149,7 @@ smp_fixed_delete_do() ->
?line 0 = ets:info(T,size),
?line true = ets:info(T,fixed),
?line Buckets = num_of_buckets(T),
- ?line NumOfObjs = ets:info(T,kept_objects),
+ ?line NumOfObjs = get_kept_objects(T),
ets:safe_fixtable(T,false),
%% Will fail as unfix does not shrink the table:
%%?line Mem = ets:info(T,memory),
@@ -5169,7 +5181,7 @@ smp_unfix_fix_do() ->
Left = NumOfObjs - Deleted,
?line Left = ets:info(T,size),
?line true = ets:info(T,fixed),
- ?line Deleted = ets:info(T,kept_objects),
+ ?line Deleted = get_kept_objects(T),
{Child, Mref} =
spawn_opt(fun()-> ?line true = ets:info(T,fixed),
@@ -5186,7 +5198,7 @@ smp_unfix_fix_do() ->
end,
Deleted),
?line 0 = ets:info(T,size),
- ?line true = ets:info(T,kept_objects) >= Left,
+ ?line true = get_kept_objects(T) >= Left,
?line done = receive_any()
end,
[link, monitor, {scheduler,2}]),
@@ -5199,7 +5211,7 @@ smp_unfix_fix_do() ->
Child ! done,
{'DOWN', Mref, process, Child, normal} = receive_any(),
?line false = ets:info(T,fixed),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
%%verify_table_load(T),
ets:delete(T),
process_flag(scheduler,0).
@@ -5237,7 +5249,7 @@ otp_8166_do(WC) ->
ZombieCrPid ! quit,
{'DOWN', ZombieCrMref, process, ZombieCrPid, normal} = receive_any(),
?line false = ets:info(T,fixed),
- ?line 0 = ets:info(T,kept_objects),
+ ?line 0 = get_kept_objects(T),
%%verify_table_load(T),
ets:delete(T),
process_flag(scheduler,0).
@@ -5304,7 +5316,7 @@ otp_8166_zombie_creator(T,Deleted) ->
verify_table_load(T) ->
?line Stats = ets:info(T,stats),
- ?line {Buckets,AvgLen,StdDev,ExpSD,_MinLen,_MaxLen} = Stats,
+ ?line {Buckets,AvgLen,StdDev,ExpSD,_MinLen,_MaxLen,_} = Stats,
?line ok = if
AvgLen > 7 ->
io:format("Table overloaded: Stats=~p\n~p\n",
@@ -5420,7 +5432,39 @@ types_do(Opts) ->
?line verify_etsmem(EtsMem).
-
+otp_9423(doc) -> ["vm-deadlock caused by race between ets:delete and others on write_concurrency table"];
+otp_9423(Config) when is_list(Config) ->
+ InitF = fun(_) -> {0,0} end,
+ ExecF = fun({S,F}) ->
+ receive
+ stop ->
+ io:format("~p got stop\n", [self()]),
+ [end_of_work | {"Succeded=",S,"Failed=",F}]
+ after 0 ->
+ %%io:format("~p (~p) doing lookup\n", [self(), {S,F}]),
+ try ets:lookup(otp_9423, key) of
+ [] -> {S+1,F}
+ catch
+ error:badarg -> {S,F+1}
+ end
+ end
+ end,
+ FiniF = fun(R) -> R end,
+ case run_workers(InitF, ExecF, FiniF, infinite, 1) of
+ Pids when is_list(Pids) ->
+ %%[P ! start || P <- Pids],
+ repeat(fun() -> ets:new(otp_9423, [named_table, public, {write_concurrency,true}]),
+ ets:delete(otp_9423)
+ end, 10000),
+ [P ! stop || P <- Pids],
+ wait_pids(Pids),
+ ok;
+
+ Skipped -> Skipped
+ end.
+
+
+
%
% Utility functions:
@@ -5434,21 +5478,30 @@ add_lists([E1|T1], [E2|T2], Acc) ->
add_lists(T1, T2, [E1+E2 | Acc]).
run_workers(InitF,ExecF,FiniF,Laps) ->
+ run_workers(InitF,ExecF,FiniF,Laps, 0).
+run_workers(InitF,ExecF,FiniF,Laps, Exclude) ->
case erlang:system_info(smp_support) of
true ->
- run_workers_do(InitF,ExecF,FiniF,Laps);
+ run_workers_do(InitF,ExecF,FiniF,Laps, Exclude);
false ->
{skipped,"No smp support"}
end.
-
+
run_workers_do(InitF,ExecF,FiniF,Laps) ->
- NumOfProcs = erlang:system_info(schedulers),
+ run_workers_do(InitF,ExecF,FiniF,Laps, 0).
+run_workers_do(InitF,ExecF,FiniF,Laps, Exclude) ->
+ ?line NumOfProcs = case erlang:system_info(schedulers) of
+ N when (N > Exclude) -> N - Exclude
+ end,
io:format("smp starting ~p workers\n",[NumOfProcs]),
Seeds = [{ProcN,random:uniform(9999)} || ProcN <- lists:seq(1,NumOfProcs)],
Parent = self(),
Pids = [spawn_link(fun()-> worker(Seed,InitF,ExecF,FiniF,Laps,Parent,NumOfProcs) end)
|| Seed <- Seeds],
- wait_pids(Pids).
+ case Laps of
+ infinite -> Pids;
+ _ -> wait_pids(Pids)
+ end.
worker({ProcN,Seed}, InitF, ExecF, FiniF, Laps, Parent, NumOfProcs) ->
io:format("smp worker ~p, seed=~p~n",[self(),Seed]),
@@ -5463,6 +5516,8 @@ worker_loop(0, _, State) ->
State;
worker_loop(_, _, [end_of_work|State]) ->
State;
+worker_loop(infinite, ExecF, State) ->
+ worker_loop(infinite,ExecF,ExecF(State));
worker_loop(N, ExecF, State) ->
worker_loop(N-1,ExecF,ExecF(State)).
@@ -5873,7 +5928,7 @@ very_big_num(0, Result) ->
?line Result.
make_port() ->
- ?line open_port({spawn, efile}, [eof]).
+ ?line open_port({spawn, "efile"}, [eof]).
make_pid() ->
?line spawn_link(?MODULE, sleeper, []).
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 11:10:13 +0000