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</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>
- 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 <c>error_logger</c> process when
- processes with huge message queues or states crash. </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>