diff options
Diffstat (limited to 'lib/kernel')
| -rw-r--r-- | lib/kernel/doc/src/heart.xml | 11 | ||||
| -rw-r--r-- | lib/kernel/doc/src/notes.xml | 181 | ||||
| -rw-r--r-- | lib/kernel/test/heart_SUITE.erl | 40 | ||||
| -rw-r--r-- | lib/kernel/test/inet_SUITE.erl | 23 | ||||
| -rw-r--r-- | lib/kernel/test/inet_res_SUITE.erl | 15 |
5 files changed, 77 insertions, 193 deletions
diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml index c587e39345..864f8facac 100644 --- a/lib/kernel/doc/src/heart.xml +++ b/lib/kernel/doc/src/heart.xml @@ -83,6 +83,17 @@ <c><![CDATA[SIGKILL]]></c>:</p> <pre> % <input>erl -heart -env HEART_KILL_SIGNAL SIGABRT ...</input></pre> + <p> If heart should <b>not</b> kill the Erlang runtime system, this can be indicated + using the environment variable <c><![CDATA[HEART_NO_KILL=TRUE]]></c>. + This can be useful if the command executed by heart takes care of this, + for example as part of a specific cleanup sequence. + If unset, or not set to <c><![CDATA[TRUE]]></c>, the default behaviour + will be to kill as described above. + </p> + + <pre> +% <input>erl -heart -env HEART_NO_KILL 1 ...</input></pre> + <p>Furthermore, <c><![CDATA[ERL_CRASH_DUMP_SECONDS]]></c> has the following behavior on <c>heart</c>:</p> <taglist> diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml index b0e614d33c..d0540768de 100644 --- a/lib/kernel/doc/src/notes.xml +++ b/lib/kernel/doc/src/notes.xml @@ -31,187 +31,6 @@ </header> <p>This document describes the changes made to the Kernel application.</p> -<section><title>Kernel 5.0</title> - - <section><title>Fixed Bugs and Malfunctions</title> - <list> - <item> - <p>The handling of <c>on_load</c> functions has been - improved. The major improvement is that if a code upgrade - fails because the <c>on_load</c> function fails, the - previous version of the module will now be retained.</p> - <p> - Own Id: OTP-12593</p> - </item> - <item> - <p><c>rpc:call()</c> and <c>rpc:block_call()</c> would - sometimes cause an exception (which was not mentioned in - the documentation). This has been corrected so that - <c>{badrpc,Reason}</c> will be returned instead.</p> - <p> - Own Id: OTP-13409</p> - </item> - <item> - <p>On Windows, for modules that were loaded early (such - as the <c>lists</c> module), <c>code:which/1</c> would - return the path with mixed slashes and backslashes, for - example: <c>"C:\\Program - Files\\erl8.0/lib/stdlib-2.7/ebin/lists.beam"</c>. This - has been corrected.</p> - <p> - Own Id: OTP-13410</p> - </item> - <item> - <p> - Use fsync instead of fdatasync on Mac OSX.</p> - <p> - Own Id: OTP-13411</p> - </item> - <item> - <p> - The default chunk size for the fallback sendfile - implementation, used on platforms that do not have a - native sendfile, has been decreased in order to reduce - connectivity issues.</p> - <p> - Own Id: OTP-13444</p> - </item> - <item> - <p> - Huges writes (2Gb or more) could fail on some Unix - platforms (for example, OS X and FreeBSD).</p> - <p> - Own Id: OTP-13461</p> - </item> - <item> - <p> - A bug has been fixed where the DNS resolver inet_res did - not refresh its view of the contents of for example - resolv.conf immediately after start and hence then failed - name resolution. Reported and fix suggested by Michal - Ptaszek in GitHUB pull req #949.</p> - <p> - Own Id: OTP-13470 Aux Id: Pull #969 </p> - </item> - <item> - <p> - Fix process leak from global_group. Thanks to Xuming who - reported and fixed this!</p> - <p> - Own Id: OTP-13516 Aux Id: PR-1008 </p> - </item> - <item> - <p> - The function <c>inet:gethostbyname/1</c> now honors the - resolver option <c>inet6</c> instead of always looking up - IPv4 addresses.</p> - <p> - *** POTENTIAL INCOMPATIBILITY ***</p> - <p> - Own Id: OTP-13622 Aux Id: PR-1065 </p> - </item> - <item> - <p> - The <c>Status</c> argument to <c>init:stop/1</c> is now - sanity checked to make sure <c>erlang:halt</c> does not - fail.</p> - <p> - Own Id: OTP-13631 Aux Id: PR-911 </p> - </item> - </list> - </section> - - - <section><title>Improvements and New Features</title> - <list> - <item> - <p> - Added <seealso - marker="kernel:os#perf_counter/1">os:perf_counter/1</seealso>.</p> - <p> - The perf_counter is a very very cheap and high resolution - timer that can be used to timestamp system events. It - does not have monoticity guarantees, but should on most - OS's expose a monotonous time.</p> - <p> - Own Id: OTP-12908</p> - </item> - <item> - <p> - The os:cmd call has been optimized on unix platforms to - be more performant as the number of schedulers increase.</p> - <p> - Own Id: OTP-13089</p> - </item> - <item> - <p>New functions that can load multiple functions at once - have been added to the '<c>code</c>' module. The - functions are <c>code:atomic_load/1</c>, - <c>code:prepare_loading/1</c>, - <c>code:finish_loading/1</c>, and - <c>code:ensure_modules_loaded/1</c>.</p> - <p> - Own Id: OTP-13111</p> - </item> - <item> - <p> - The code path cache feature turned out not to be very - useful in practice and has been removed. If an attempt is - made to enable the code path cache, there will be a - warning report informing the user that the feature has - been removed.</p> - <p> - Own Id: OTP-13191</p> - </item> - <item> - <p>When an attempt is made to start a distributed Erlang - node with the same name as an existing node, the error - message will be much shorter and easier to read than - before. Example:</p> - <p><c>Protocol 'inet_tcp': the name somename@somehost - seems to be in use by another Erlang node</c></p> - <p> - Own Id: OTP-13294</p> - </item> - <item> - <p> - The output of the default error logger is somewhat - prettier and easier to read. The default error logger is - used during startup of the OTP system. If the start-up - fails, the output will be easier to read.</p> - <p> - Own Id: OTP-13325</p> - </item> - <item> - <p>The functions <c>rpc:safe_multi_server_call/2,3</c> - that were deprecated in R12B have been removed.</p> - <p> - *** POTENTIAL INCOMPATIBILITY ***</p> - <p> - Own Id: OTP-13449</p> - </item> - <item> - <p> - Update the error reasons in dist_util, and show them in - the logs if net_kernel:verbose(1) has been called.</p> - <p> - Own Id: OTP-13458</p> - </item> - <item> - <p> - Experimental support for Unix Domain Sockets has been - implemented. Read the sources if you want to try it out. - Example: <c>gen_udp:open(0, - [{ifaddr,{local,"/tmp/socket"}}])</c>. Documentation will - be written after user feedback on the experimental API.</p> - <p> - Own Id: OTP-13572 Aux Id: PR-612 </p> - </item> - </list> - </section> - -</section> - <section><title>Kernel 4.2</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/kernel/test/heart_SUITE.erl b/lib/kernel/test/heart_SUITE.erl index 548b27db97..e63ed34973 100644 --- a/lib/kernel/test/heart_SUITE.erl +++ b/lib/kernel/test/heart_SUITE.erl @@ -29,11 +29,11 @@ set_cmd/1, clear_cmd/1, get_cmd/1, callback_api/1, options_api/1, - dont_drop/1, kill_pid/1]). + dont_drop/1, kill_pid/1, heart_no_kill/1]). -export([init_per_testcase/2, end_per_testcase/2]). --export([start_heart_stress/1, mangle/1, suicide_by_heart/0]). +-export([start_heart_stress/1, mangle/1, suicide_by_heart/0, non_suicide_by_heart/0]). -define(DEFAULT_TIMEOUT_SECS, 120). @@ -491,6 +491,30 @@ do_kill_pid(_Config) -> false end. + +heart_no_kill(suite) -> + []; +heart_no_kill(doc) -> + ["Tests that heart doesn't kill the old erlang node when ", + "HEART_NO_KILL is set."]; +heart_no_kill(Config) when is_list(Config) -> + ok = do_no_kill(Config). + +do_no_kill(_Config) -> + Name = heart_test, + {ok,Node} = start_node_run(Name,[],non_suicide_by_heart,[]), + io:format("Node is ~p~n", [Node]), + ok = wait_for_node(Node,15), + io:format("wait_for_node is ~p~n", [ok]), + erlang:monitor_node(Node, true), + receive {nodedown,Node} -> false + after 30000 -> + io:format("Node didn't die..\n"), + rpc:call(Node,init,stop,[]), + io:format("done init:stop..\n"), + ok + end. + wait_for_node(_,0) -> false; wait_for_node(Node,N) -> @@ -609,6 +633,18 @@ suicide_by_heart() -> sallad end. +non_suicide_by_heart() -> + P = open_port({spawn,"heart -ht 11 -pid "++os:getpid()},[exit_status, {env, {"HEART_NO_KILL", "TRUE"}}, {packet,2}]), + receive X -> X end, + %% Just hang and wait for heart to timeout + receive + {P,{exit_status,_}} -> + ok + after + 20000 -> + exit(timeout) + end. + %% generate a module from binary generate(Module, Attributes, FunStrings) -> diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl index 6248d7478c..f60c13d2e3 100644 --- a/lib/kernel/test/inet_SUITE.erl +++ b/lib/kernel/test/inet_SUITE.erl @@ -139,11 +139,13 @@ t_gethostbyaddr(Config) when is_list(Config) -> ok; _ -> io:format("alias list: ~p", [HEnt#hostent.h_aliases]), - io:format("check alias list: ~p", [[Aliases,[Rname]]]), + io:format( + "check alias list: ~p", [[Aliases,tl(Aliases),[Rname]]]), io:format("name: ~p", [HEnt#hostent.h_name]), io:format("check name: ~p", [[Name,FullName]]), - check_elems([{HEnt#hostent.h_name,[Name,FullName]}, - {HEnt#hostent.h_aliases,[[],Aliases,[Rname]]}]) + check_elems( + [{HEnt#hostent.h_name,[Name,FullName]}, + {HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases),[Rname]]}]) end, {_DName, _DFullName, DIPStr, DIP, _, _, _} = ct:get_config(test_dummy_host), @@ -171,8 +173,9 @@ t_gethostbyaddr_v6(Config) when is_list(Config) -> h_length = 16, h_addr_list = [IP6]}, HEnt6_ = HEnt6, - check_elems([{HEnt6#hostent.h_name,[Name6,FullName6]}, - {HEnt6#hostent.h_aliases,[[],Aliases6]}]), + check_elems( + [{HEnt6#hostent.h_name,[Name6,FullName6]}, + {HEnt6#hostent.h_aliases,[[],Aliases6,tl(Aliases6)]}]), {_DName6, _DFullName6, DIPStr6, DIP6, _} = ct:get_config(test_dummy_ipv6_host), @@ -195,14 +198,14 @@ t_gethostbyname(Config) when is_list(Config) -> HEnt_ = HEnt, check_elems([{HEnt#hostent.h_name,[Name,FullName]}, - {HEnt#hostent.h_aliases,[[],Aliases]}]), + {HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases)]}]), {ok,HEntF} = inet:gethostbyname(FullName), HEntF_ = HEntF#hostent{h_name = FullName, h_addrtype = inet, h_length = 4, h_addr_list = [IP]}, HEntF_ = HEntF, - check_elems([{HEnt#hostent.h_aliases,[[],Aliases]}]), + check_elems([{HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases)]}]), %% FullNameU = toupper(FullName), {ok,HEntU} = inet:gethostbyname(FullNameU), @@ -237,7 +240,7 @@ t_gethostbyname_v6(Config) when is_list(Config) -> h_length = 16} = HEnt, check_elems( [{HEnt#hostent.h_name,[Name,FullName]}, - {HEnt#hostent.h_aliases,[[],Aliases]}]); + {HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases)]}]); [IP46] -> % IPv4 compatible address {ok,HEnt4} = inet:gethostbyname(Name, inet), #hostent{h_addrtype = inet, @@ -257,7 +260,7 @@ t_gethostbyname_v6(Config) when is_list(Config) -> h_addrtype = inet6, h_length = 16} = HEntF, check_elems( - [{HEnt#hostent.h_aliases,[[],Aliases]}]); + [{HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases)]}]); [IP46F] -> % IPv4 compatible address {ok,HEnt4F} = inet:gethostbyname(FullName, inet), #hostent{h_addrtype = inet, @@ -363,7 +366,7 @@ ipv4_to_ipv6(Config) when is_list(Config) -> h_addr_list = [IP_46]}, HEnt_ = HEnt, check_elems([{HEnt#hostent.h_name,[IP_46_Str,IPStr]}, - {HEnt#hostent.h_aliases,[[],Aliases]}]); + {HEnt#hostent.h_aliases,[[],Aliases,tl(Aliases)]}]); {_,IP4to6Res} -> ok end, ok. diff --git a/lib/kernel/test/inet_res_SUITE.erl b/lib/kernel/test/inet_res_SUITE.erl index 9662d1fef5..6691ad9c06 100644 --- a/lib/kernel/test/inet_res_SUITE.erl +++ b/lib/kernel/test/inet_res_SUITE.erl @@ -42,6 +42,21 @@ -define(RUN_NAMED, "run-named"). +%% This test suite use a script ?RUN_NAMED that tries to start +%% a temporary local nameserver BIND 8 or 9 that must be installed +%% on your machine. +%% +%% For example, on Ubuntu 14.04, as root: +%% apt-get install bind9 +%% Now, that is not enough since Apparmor will not allow +%% the nameserver daemon /usr/sbin/named to read from the test directory. +%% Assuming that you run tests in /ldisk/daily_build, and still on +%% Ubuntu 14.04, make /usr/apparmor.d/local/usr.sbin.named contain: +%% /ldisk/daily_build/** r, +%% And yes; the trailing comma must be there... + + + suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap,{minutes,1}}]. |