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authorErlang/OTP <[email protected]>2015-07-08 20:31:15 +0200
committerErlang/OTP <[email protected]>2015-07-08 20:31:15 +0200
commit0b996eb2bb2ac04a0515d8f113cb6529db5ed272 (patch)
tree36a1733cf7fffb26ca500912d7ab1cb5f4cbd0ec /erts/emulator/test
parent1c14bf099be15790ccbe56f464e81a9557476b3f (diff)
parente98fb1920ad053d2db4594c5d33cdfcfcdc6d771 (diff)
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Merge branch 'rickard/non-smp-trace-port-exit-bug/OTP-12889' into maint-18
* rickard/non-smp-trace-port-exit-bug/OTP-12889: Teach non-smp VM how to deal with trace port crash Test case testing crash in tracer port
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/trace_port_SUITE.erl45
-rw-r--r--erts/emulator/test/trace_port_SUITE_data/echo_drv.c12
2 files changed, 55 insertions, 2 deletions
diff --git a/erts/emulator/test/trace_port_SUITE.erl b/erts/emulator/test/trace_port_SUITE.erl
index d6346f3af0..a77710205e 100644
--- a/erts/emulator/test/trace_port_SUITE.erl
+++ b/erts/emulator/test/trace_port_SUITE.erl
@@ -35,7 +35,8 @@
fake_schedule_after_getting_linked/1,
fake_schedule_after_getting_unlinked/1,
gc/1,
- default_tracer/1]).
+ default_tracer/1,
+ tracer_port_crash/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -45,7 +46,7 @@ test_cases() ->
fake_schedule_after_register,
fake_schedule_after_getting_linked,
fake_schedule_after_getting_unlinked, gc,
- default_tracer].
+ default_tracer, tracer_port_crash].
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -473,6 +474,42 @@ default_tracer(Config) when is_list(Config) ->
?line M = N,
ok.
+tracer_port_crash(Config) when is_list(Config) ->
+ case test_server:is_native(?MODULE) orelse
+ test_server:is_native(lists) of
+ true ->
+ {skip,"Native code"};
+ false ->
+ Tr = start_tracer(Config),
+ Port = get(tracer_port),
+ Tracee = spawn(fun () ->
+ register(trace_port_linker, self()),
+ link(Port),
+ receive go -> ok end,
+ lists:reverse([1,b,c]),
+ receive die -> ok end
+ end),
+ Tr ! {unlink_tracer_port, self()},
+ receive {unlinked_tracer_port, Tr} -> ok end,
+ port_control(Port, $c, []), %% Make port commands crash tracer port...
+ trace_func({lists,reverse,1}, []),
+ trace_pid(Tracee, true, [call]),
+ trace_info(Tracee, flags),
+ trace_info(self(), tracer),
+ Tracee ! go,
+ receive after 1000 -> ok end,
+ case whereis(trace_port_linker) of
+ undefined ->
+ ok;
+ Id ->
+% erts_debug:set_internal_state(available_internal_state, true),
+% erts_debug:set_internal_state(abort, {trace_port_linker, Id})
+ ?t:fail({trace_port_linker, Id})
+ end,
+ undefined = process_info(Tracee),
+ ok
+ end.
+
%%% Help functions.
huge_data() -> huge_data(16384).
@@ -631,6 +668,10 @@ tracer_loop(RelayTo, Port) ->
{Port,{data,Msg}} ->
RelayTo ! binary_to_term(Msg),
tracer_loop(RelayTo, Port);
+ {unlink_tracer_port, From} ->
+ unlink(Port),
+ From ! {unlinked_tracer_port, self()},
+ tracer_loop(RelayTo, Port);
Other ->
exit({bad_message,Other})
end.
diff --git a/erts/emulator/test/trace_port_SUITE_data/echo_drv.c b/erts/emulator/test/trace_port_SUITE_data/echo_drv.c
index a8d4ede4fe..e40b9193ea 100644
--- a/erts/emulator/test/trace_port_SUITE_data/echo_drv.c
+++ b/erts/emulator/test/trace_port_SUITE_data/echo_drv.c
@@ -1,5 +1,6 @@
#include <stdio.h>
#include "erl_driver.h"
+#include <errno.h>
@@ -14,6 +15,7 @@ enum e_heavy {
typedef struct _erl_drv_data {
ErlDrvPort erlang_port;
enum e_heavy heavy;
+ int crash;
} EchoDrvData;
static EchoDrvData echo_drv_data, *echo_drv_data_p;
@@ -78,6 +80,7 @@ static EchoDrvData *echo_drv_start(ErlDrvPort port, char *command)
echo_drv_data_p = &echo_drv_data;
echo_drv_data_p->erlang_port = port;
echo_drv_data_p->heavy = heavy_off;
+ echo_drv_data_p->crash = 0;
return echo_drv_data_p;
}
@@ -87,6 +90,12 @@ static void echo_drv_stop(EchoDrvData *data_p) {
static void echo_drv_output(ErlDrvData drv_data, char *buf, ErlDrvSizeT len) {
EchoDrvData* data_p = (EchoDrvData *) drv_data;
+
+ if (data_p->crash) {
+ driver_failure_posix(data_p->erlang_port, EINTR);
+ return;
+ }
+
driver_output(data_p->erlang_port, buf, len);
switch (data_p->heavy) {
case heavy_off:
@@ -100,6 +109,7 @@ static void echo_drv_output(ErlDrvData drv_data, char *buf, ErlDrvSizeT len) {
data_p->heavy = heavy_off;
break;
}
+
}
static void echo_drv_finish() {
@@ -115,6 +125,8 @@ static ErlDrvSSizeT echo_drv_control(ErlDrvData drv_data,
case 'h':
data_p->heavy = heavy_set;
break;
+ case 'c':
+ data_p->crash = 1;
}
return 0;
}