From a4ab1f1026bdefa2f7434b288e2894f2efe81acb Mon Sep 17 00:00:00 2001
From: Raimo Niskanen <raimo@erlang.org>
Date: Tue, 6 Nov 2018 16:36:10 +0100
Subject: Update OS version numbers

---
 lib/kernel/test/gen_tcp_misc_SUITE.erl | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'lib')

diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index 04c0c48e3a..c47de58fae 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -1969,20 +1969,20 @@ recvtclass(_Config) ->
             {skip,{ipv6_not_supported,IFs}}
     end.
 
-%% These version numbers are the highest noted in daily tests
-%% where the test fails for a plausible reason, so
-%% skip on that platform.
+%% These version numbers are above the highest noted
+%% in daily tests where the test fails for a plausible reason,
+%% so skip on platforms of lower version, i.e they are future
+%% versions where it is possible that it might not fail.
 %%
-%% On newer versions it might be fixed, but we'll see about that
-%% when machines with newer versions gets installed...
-%% If the test still fails for a plausible reason these
+%% When machines with newer versions gets installed,
+%% if the test still fails for a plausible reason these
 %% version numbers simply should be increased.
 %% Or maybe we should change to only test on known good
 %% platforms - change {unix,_} to false?
 
 %% pktoptions is not supported for IPv4
 recvtos_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
-recvtos_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvtos_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {19,0,0});
 %% Using the option returns einval, so it is not implemented.
 recvtos_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
 recvtos_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
@@ -1994,7 +1994,7 @@ recvtos_ok(_, _) -> false.
 
 %% pktoptions is not supported for IPv4
 recvttl_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
-recvttl_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvttl_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {19,0,0});
 %% Using the option returns einval, so it is not implemented.
 recvttl_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
 recvttl_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
@@ -2005,7 +2005,7 @@ recvttl_ok(_, _) -> false.
 
 %% pktoptions is not supported for IPv6
 recvtclass_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
-recvtclass_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvtclass_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {19,0,0});
 recvtclass_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
 %% Using the option returns einval, so it is not implemented.
 recvtclass_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
-- 
cgit v1.2.3


From 0727fa2e5c1ce8633096d4ad7c7f5f40e81d2264 Mon Sep 17 00:00:00 2001
From: Raimo Niskanen <raimo@erlang.org>
Date: Fri, 9 Nov 2018 16:01:58 +0100
Subject: Parallel stress test strong_rand_bytes

---
 lib/crypto/test/crypto_SUITE.erl | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'lib')

diff --git a/lib/crypto/test/crypto_SUITE.erl b/lib/crypto/test/crypto_SUITE.erl
index 025c46aab0..6b7ed06797 100644
--- a/lib/crypto/test/crypto_SUITE.erl
+++ b/lib/crypto/test/crypto_SUITE.erl
@@ -38,6 +38,7 @@ all() ->
      mod_pow,
      exor,
      rand_uniform,
+     rand_threads,
      rand_plugin,
      rand_plugin_s
     ].
@@ -604,6 +605,25 @@ rand_uniform(Config) when is_list(Config) ->
     rand_uniform_aux_test(10),
     10 = byte_size(crypto:strong_rand_bytes(10)).
 
+%%--------------------------------------------------------------------
+rand_threads() ->
+    [{doc, "strong_rand_bytes in parallel threads"}].
+rand_threads(Config) when is_list(Config) ->
+    %% This will crash the emulator on at least one version of libcrypto
+    %% with buggy multithreading in RAND_bytes().
+    %% The test needs to run at least a few minutes...
+    NofThreads = 4,
+    Fun = fun F() -> crypto:strong_rand_bytes(16), F() end,
+    PidRefs = [spawn_monitor(Fun) || _ <- lists:seq(1, NofThreads)],
+%%% The test case takes too much time to run.
+%%% Keep it around for reference by setting it down to just 10 seconds.
+%%%    receive after 10 * 60 * 1000 -> ok end, % 10 minutes
+    receive after 10 * 1000 -> ok end, % 10 seconds
+    spawn_link(fun () -> receive after 5000 -> exit(timeout) end end),
+    [exit(Pid, stop) || {Pid,_Ref} <- PidRefs],
+    [receive {'DOWN',Ref,_,_,stop} -> ok end || {_Pid,Ref} <- PidRefs],
+    ok.
+
 %%--------------------------------------------------------------------
 rand_plugin() ->
     [{doc, "crypto rand plugin testing (implicit state / process dictionary)"}].
-- 
cgit v1.2.3