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Diffstat (limited to 'erts/doc/src/notes.xml')
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diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index f160d575e3..e0af7bc4ce 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -31,6 +31,316 @@ </header> <p>This document describes the changes made to the ERTS application.</p> +<section><title>Erts 10.3.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Add missing documentation of new external tags + <c>NEW_PID</c>, <c>NEW_PORT</c> and + <c>NEWER_REFERENCE</c> introduced in OTP 19.</p> <p>These + new tags are planned to be "activated" in OTP 23 when + distribution capability flag <c>DFLAG_BIG_CREATION</c> + becomes mandatory. Older nodes (>= 19) are able to decode + these new tags and send them back to the new node. Nodes + older than OTP 23 will however never encode their own + local pids, ports and references using the new tags.</p> + <p> + Own Id: OTP-15766</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 10.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix <c>erlang:open_port/2</c> with the <c>fd</c> option + to correctly cleanup the pollset when the port is closed. + Before this fix there would be error printouts sent to + logger when the same fd was reused in a new port.</p> + <p> + Own Id: OTP-15753 Aux Id: ERL-900 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 10.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a bug in <c>seq_trace:reset_trace/0</c> that + could crash the emulator.</p> + <p> + Own Id: OTP-15704</p> + </item> + <item> + <p> + Fixed bug in <c>process_info(reductions)</c> causing it + to sometimes return invalid results.</p> + <p> + Own Id: OTP-15709 Aux Id: ERIERL-337 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 10.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>If a suspend/resume signal pair was sent to a process + while it was executing dirty, the receiving process could + later end up in a suspended state indefinitely. This bug + was introduced in ERTS version 10.0 (OTP 21.0).</p> + <p>Suspend/resume signals are sent from <seealso + marker="erts:erlang#suspend_process/1"><c>erlang:suspend_process()</c></seealso>/<seealso + marker="erts:erlang#resume_process/1"><c>erlang:resume_process()</c></seealso>. + The <seealso + marker="runtime_tools:dbg"><c>dbg</c></seealso> trace + tool utilize this functionality and could thus trigger + this bug.</p> + <p> + Own Id: OTP-15688</p> + </item> + <item> + <p> + Fix a possible deadlock when terminating the ERTS caused + by a dirty scheduler not releasing it's run-queue lock + when terminating.</p> + <p> + Own Id: OTP-15690 Aux Id: PR-2172 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 10.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>When multiplying a number by itself, a word beyond the + number on the heap could be read (and ignored). This bug + was extremely unlikely to actually cause a real + problem.</p> + <p> + Own Id: OTP-15484</p> + </item> + <item> + <p> + Fix bug where doing <c>seq_trace:reset_trace()</c> while + another process was doing a garbage collection could + cause the run-time system to segfault.</p> + <p> + Own Id: OTP-15490</p> + </item> + <item> + <p> + Fix reading of ancillary data from packet oriented + sockets on old Linux kernel versions. Without this fix, + getting the data would cause the port to enter an + infinite loop.</p> + <p> + Own Id: OTP-15494</p> + </item> + <item> + <p> + Fix bug where crash dumping or doing + <c>erlang:system_info(procs)</c> while another process + was doing a garbage collection could cause the run-time + system to segfault.</p> + <p> + Own Id: OTP-15527</p> + </item> + <item> + <p> + Fix <c>erlang:system_info(kernel_poll)</c> to return + correct value. Before this fix, the call always returned + <c>false</c>.</p> + <p> + Own Id: OTP-15556</p> + </item> + <item> + <p> + Fix bug in <c>enif_make_map_from_arrays</c> that would + produce broken maps when number of keys were 32. Bug + exists since OTP 21.0.</p> + <p> + Own Id: OTP-15567</p> + </item> + <item> + <p> + Fix a bug in <c>binary:encode_unsigned</c> that may cause + a read of uninitialized memory.</p> + <p> + The bug existed since the function was added (OTP + R16B02).</p> + <p> + Own Id: OTP-15583 Aux Id: PR-2118 </p> + </item> + <item> + <p> + Fixed a bug that could cause <c>heart</c> to kill an + exiting node before it had time to flush all buffered + writes. If environment variable + <c>HEART_KILL_SIGNAL=SIGABRT</c> was set a superfluous + core dump could also be generated.</p> + <p> + Own Id: OTP-15599 Aux Id: ERIERL-298 </p> + </item> + <item> + <p> + Fix <c>enif_consume_timeslice</c> to be a no-op on dirty + scheduler and not crash debug compiled emulator.</p> + <p> + Own Id: OTP-15604</p> + </item> + <item> + <p> + Fixed macro redefinition warnings.</p> + <p> + Own Id: OTP-15629</p> + </item> + <item> + <p> + <c>to_erl</c> fixed to not garble terminal input beyond + 7-bit ASCII.</p> + <p> + Own Id: OTP-15650 Aux Id: ERL-854, PR-2161 </p> + </item> + <item> + <p> + Minor fixes for <c>make clean</c>.</p> + <p> + Own Id: OTP-15657</p> + </item> + <item> + <p> + Fixed a bug in all <c>ets:select*</c> and + <c>ets:match*</c> functions that could in some rare cases + lead to very poor performance.</p> + <p> + Own Id: OTP-15660 Aux Id: ERL-869 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Add <c>erlang:system_flag(system_logger, Pid)</c> and + <c>erlang:system_info(system_logger)</c>. This + system_flag can be used to set the process that will + receive the logging messages generated by ERTS.</p> + <p> + Own Id: OTP-15375</p> + </item> + <item> + <p><c>integer_to_list/2</c> and + <c>integer_to_binary/2</c> are now implemented in C, + improving their performance.</p> + <p> + Own Id: OTP-15503 Aux Id: PR-2052 </p> + </item> + <item> + <p> + Improved <c>term_to_binary</c> to do more fair reduction + count and yielding when encoding large byte lists + (strings).</p> + <p> + Own Id: OTP-15514 Aux Id: ERL-774 </p> + </item> + <item> + <p> + Made internal port drivers more robust against + <c>erlang:port_control</c> with invalid arguments and + added documentation warnings about such abuse.</p> + <p> + Own Id: OTP-15555 Aux Id: ERIERL-231 </p> + </item> + <item> + <p> + Fix bug on NetBSD where the <c>exit_status</c> from a + port program would never be sent.</p> + <p> + Own Id: OTP-15558 Aux Id: ERL-725 </p> + </item> + <item> + <p>There is a new function <c>persistent:term(Key, + Default)</c> to allow specifying a default when looking + up a persistent term.</p> + <p> + Own Id: OTP-15576 Aux Id: ERL-843 </p> + </item> + <item> + <p>A transitory emulator option '<c>+ztma true</c>' has + been added to allow running existing BEAM code that + relies on "tuple calls" (dispatch on parameterized + modules) which has been compiled under OTP 20 or earlier. + This option will be removed in OTP 22, so such modules + should eventually be recompiled with the + <c>+tuple_calls</c> option.</p> + <p> + Own Id: OTP-15580 Aux Id: PR-2113 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 10.2.5</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixes of install/release phase in build system.</p> + <list> <item>The source tree was modified when + installing/releasing and/or applying a patch.</item> + <item>Some files were installed with wrong access + rights.</item> <item>If applying a patch (using + <c>otp_patch_apply</c>) as another user (except root) + than the user that built the source, the documentation + was not properly updated.</item> </list> + <p> + Own Id: OTP-15551</p> + </item> + <item> + <p> + Setting the <c>recbuf</c> size of an inet socket the + <c>buffer</c> is also automatically increased. Fix a bug + where the auto adjustment of inet buffer size would be + triggered even if an explicit inet buffer size had + already been set.</p> + <p> + Own Id: OTP-15651 Aux Id: ERIERL-304 </p> + </item> + <item> + <p> + Reading from UDP using active <c>true</c> or active + <c>N</c> mode has been optimized when more packets than + specified by <c>read_packets</c> are available on the + socket.</p> + <p> + Own Id: OTP-15652 Aux Id: ERIERL-304 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 10.2.4</title> <section><title>Fixed Bugs and Malfunctions</title> @@ -1712,6 +2022,62 @@ </section> +<section><title>Erts 9.3.3.9</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Added an optional <c>./configure</c> flag to compile + the emulator with spectre mitigation: + <c>--with-spectre-mitigation</c></p> + <p>Note that this requires a recent version of GCC with + support for spectre mitigation and the + <c>--mindirect-branch=thunk</c> flag, such as + <c>8.1</c>.</p> + <p> + Own Id: OTP-15430 Aux Id: ERIERL-237 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.3.8</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A bug that could cause dirty schedulers to become + unresponsive has been fixed.</p> + <p> + Own Id: OTP-15509 Aux Id: PR-2027, PR-2093 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.3.7</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed bug in operator <c>band</c> of two negative + operands causing erroneous result if the absolute value + of one of the operands have the lowest <c>N*W</c> bits as + zero and the other absolute value is not larger than + <c>N*W</c> bits. <c>N</c> is an integer of 1 or larger + and <c>W</c> is 32 or 64 depending on word size.</p> + <p> + Own Id: OTP-15487 Aux Id: ERL-804 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 9.3.3.6</title> <section><title>Improvements and New Features</title> @@ -2073,6 +2439,22 @@ </section> +<section><title>Erts 9.2.0.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Extra internal consistency checks wrt communication with + erl_child_setup process.</p> + <p> + Own Id: OTP-15488 Aux Id: ERIERL-231 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 9.2</title> <section><title>Fixed Bugs and Malfunctions</title> @@ -3271,6 +3653,43 @@ </section> +<section><title>Erts 8.3.5.7</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed bug in operator <c>band</c> of two negative + operands causing erroneous result if the absolute value + of one of the operands have the lowest <c>N*W</c> bits as + zero and the other absolute value is not larger than + <c>N*W</c> bits. <c>N</c> is an integer of 1 or larger + and <c>W</c> is 32 or 64 depending on word size.</p> + <p> + Own Id: OTP-15487 Aux Id: ERL-804 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Added an optional <c>./configure</c> flag to compile + the emulator with spectre mitigation: + <c>--with-spectre-mitigation</c></p> + <p>Note that this requires a recent version of GCC with + support for spectre mitigation and the + <c>--mindirect-branch=thunk</c> flag, such as + <c>8.1</c>.</p> + <p> + Own Id: OTP-15430 Aux Id: ERIERL-237 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 8.3.5.6</title> <section><title>Fixed Bugs and Malfunctions</title> |