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Diffstat (limited to 'lib/kernel/doc/src/notes.xml')
| -rw-r--r-- | lib/kernel/doc/src/notes.xml | 344 |
1 files changed, 341 insertions, 3 deletions
diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml index f37433110c..e1cf45109d 100644 --- a/lib/kernel/doc/src/notes.xml +++ b/lib/kernel/doc/src/notes.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2004</year><year>2016</year> + <year>2004</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -31,6 +31,344 @@ </header> <p>This document describes the changes made to the Kernel application.</p> +<section><title>Kernel 5.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Function <c>inet:ntoa/1</c> has been fixed to return + lowercase letters according to RFC 5935 that has been + approved after this function was written. Previously + uppercase letters were returned so this may be a + backwards incompatible change depending on how the + returned address string is used.</p> + <p>Function <c>inet:parse_address/1</c> has been fixed to + accept %-suffixes on scoped addresses. The addresses does + not work yet, but gives no parse errors.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-13006 Aux Id: ERIERL-20, ERL-429 </p> + </item> + <item> + <p> + Fix bug where gethostname would incorrectly fail with + enametoolong on Linux.</p> + <p> + Own Id: OTP-14310</p> + </item> + <item> + <p> + Fix bug causing <c>code:is_module_native</c> to falsely + return true when <c>local</c> call trace is enabled for + the module.</p> + <p> + Own Id: OTP-14390</p> + </item> + <item> + <p> + Add early reject of invalid node names from distributed + nodes.</p> + <p> + Own Id: OTP-14426</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Since Unicode is now allowed in atoms an extra check is + needed for node names, which are restricted to Latin-1.</p> + <p> + Own Id: OTP-13805</p> + </item> + <item> + <p>Replaced usage of deprecated symbolic <seealso + marker="erts:erlang#type-time_unit"><c>time + unit</c></seealso> representations.</p> + <p> + Own Id: OTP-13831 Aux Id: OTP-13735 </p> + </item> + <item> + <p><c>file:write_file(Name, Data, [raw])</c> would turn + <c>Data</c> into a single binary before writing. This + meant it could not take advantage of the <c>writev()</c> + system call if it was given a list of binaries and told + to write with <c>raw</c> mode.</p> + <p> + Own Id: OTP-13909</p> + </item> + <item> + <p>The performance of the <c>disk_log</c> has been + somewhat improved in some corner cases (big items), and + the documentation has been clarified. </p> + <p> + Own Id: OTP-14057 Aux Id: PR-1245 </p> + </item> + <item> + <p>Functions for detecting changed code has been added. + <c>code:modified_modules/0</c> returns all currently + loaded modules that have changed on disk. + <c>code:module_status/1</c> returns the status for a + module. In the shell and in <c>c</c> module, <c>mm/0</c> + is short for <c>code:modified_modules/0</c>, and + <c>lm/0</c> reloads all currently loaded modules that + have changed on disk.</p> + <p> + Own Id: OTP-14059</p> + </item> + <item> + <p> + Introduce an event manager in Erlang to handle OS + signals. A subset of OS signals may be subscribed to and + those are described in the Kernel application.</p> + <p> + Own Id: OTP-14186</p> + </item> + <item> + <p> Sockets can now be bound to device (SO_BINDTODEVICE) + on platforms where it is supported. </p> <p> This has + been implemented e.g to support VRF-Lite under Linux; see + <url + href="https://www.kernel.org/doc/Documentation/networking/vrf.txt"> + VRF </url>, and GitHub pull request <url + href="https://github.com/erlang/otp/pull/1326">#1326</url>. + </p> + <p> + Own Id: OTP-14357 Aux Id: PR-1326 </p> + </item> + <item> + <p> + Added option to store shell_history on disk so that the + history can be reused between sessions.</p> + <p> + Own Id: OTP-14409 Aux Id: PR-1420 </p> + </item> + <item> + <p> The size of crash reports created by + <c>gen_server</c>, <c>gen_statem</c> and <c>proc_lib</c> + is limited with aid of the Kernel application variable + <c>error_logger_format_depth</c>. The purpose is to limit + the size of the messages sent to the <c>error_logger</c> + process when processes with huge message queues or states + crash. </p> <p>The crash report generated by + <c>proc_lib</c> includes the new tag + <c>message_queue_len</c>. The neighbour report also + includes the new tag <c>current_stacktrace</c>. Finally, + the neighbour report no longer includes the tags + <c>messages</c> and <c>dictionary</c>. </p> <p> The new + function <c>error_logger:get_format_depth/0</c> can be + used to retrieve the value of the Kernel application + variable <c>error_logger_format_depth</c>. </p> + <p> + Own Id: OTP-14417</p> + </item> + <item> + <p> One of the ETS tables used by the <c>global</c> + module is created with <c>{read_concurrency, true}</c> in + order to reduce contention. </p> + <p> + Own Id: OTP-14419</p> + </item> + <item> + <p> + Warnings have been added to the relevant documentation + about not using un-secure distributed nodes in exposed + environments.</p> + <p> + Own Id: OTP-14425</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 5.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix a race during cleanup of os:cmd that would cause + os:cmd to hang indefinitely.</p> + <p> + Own Id: OTP-14232 Aux Id: seq13275 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>The functions in the '<c>file</c>' module that take a + list of paths (e.g. <c>file:path_consult/2</c>) will now + continue to search in the path if the path contains + something that is not a directory.</p> + <p> + Own Id: OTP-14191</p> + </item> + <item> + <p>Two OTP processes that are known to receive many + messages are 'rex' (used by 'rpc') and 'error_logger'. + Those processes will now store unprocessed messages + outside the process heap, which will potentially decrease + the cost of garbage collections.</p> + <p> + Own Id: OTP-14192</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 5.1.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + <c>code:add_pathsa/1</c> and command line option + <c>-pa</c> both revert the given list of directories when + adding it at the beginning of the code path. This is now + documented.</p> + <p> + Own Id: OTP-13920 Aux Id: ERL-267 </p> + </item> + <item> + <p> + Add lost runtime dependency to erts-8.1. This should have + been done in kernel-5.1 (OTP-19.1) as it cannot run + without at least erts-8.1 (OTP-19.1).</p> + <p> + Own Id: OTP-14003</p> + </item> + <item> + <p> + Type and doc for gen_{tcp,udp,sctp}:controlling_process/2 + has been improved.</p> + <p> + Own Id: OTP-14022 Aux Id: PR-1208 </p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 5.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix a memory leak when calling + seq_trace:get_system_tracer().</p> + <p> + Own Id: OTP-13742</p> + </item> + <item> + <p> + Fix for the problem that when adding the ebin directory + of an application to the code path, the + <c>code:priv_dir/1</c> function returns an incorrect path + to the priv directory of the same application.</p> + <p> + Own Id: OTP-13758 Aux Id: ERL-195 </p> + </item> + <item> + <p> + Fix code_server crash when adding code paths of two + levels.</p> + <p> + Own Id: OTP-13765 Aux Id: ERL-194 </p> + </item> + <item> + <p> + Respect -proto_dist switch while connection to EPMD</p> + <p> + Own Id: OTP-13770 Aux Id: PR-1129 </p> + </item> + <item> + <p> + Fixed a bug where init:stop could deadlock if a process + with infinite shutdown timeout (e.g. a supervisor) + attempted to load code while terminating.</p> + <p> + Own Id: OTP-13802</p> + </item> + <item> + <p> + Close stdin of commands run in os:cmd. This is a + backwards compatibility fix that restores the behaviour of + pre 19.0 os:cmd.</p> + <p> + Own Id: OTP-13867 Aux Id: seq13178 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Add <c>net_kernel:setopts/2</c> and + <c>net_kernel:getopts/2</c> to control options for + distribution sockets in runtime.</p> + <p> + Own Id: OTP-13564</p> + </item> + <item> + <p> + Rudimentary support for DSCP has been implemented + in the guise of a <c>tclass</c> socket option + for IPv6 sockets.</p> + <p> + Own Id: OTP-13582</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 5.0.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + When calling os:cmd from a process that has set trap_exit + to true an 'EXIT' message would be left in the message + queue. This bug was introduced in kernel vsn 5.0.1.</p> + <p> + Own Id: OTP-13813</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 5.0.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix a os:cmd bug where creating a background job using + & would cause os:cmd to hang until the background job + terminated or closed its stdout and stderr file + descriptors. This bug has existed from kernel 5.0.</p> + <p> + Own Id: OTP-13741</p> + </item> + </list> + </section> + +</section> + <section><title>Kernel 5.0</title> <section><title>Fixed Bugs and Malfunctions</title> @@ -1309,7 +1647,7 @@ dependent, so applications aiming to be portable should consider using <c>{ipv6_v6only,true}</c> when creating an <c>inet6</c> listening/destination socket, and if - neccesary also create an <c>inet</c> socket on the same + necessary also create an <c>inet</c> socket on the same port for IPv4 traffic. See the documentation.</p> <p> Own Id: OTP-8928 Aux Id: kunagi-193 [104] </p> @@ -3447,7 +3785,7 @@ types (for instance, <c>ensure_loaded/1</c> now only accepts an atom as documented; it used to accept a string too).</p> - <p><c>Dialyzer</c> will generally emit warnings for any + <p>Dialyzer will generally emit warnings for any calls that use undocumented argument types. Even if the call happens to still work in R12B, you should correct your code. A future release will adhere to the |