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Diffstat (limited to 'erts/doc/src/notes.xml')
| -rw-r--r-- | erts/doc/src/notes.xml | 477 |
1 files changed, 468 insertions, 9 deletions
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index 1d3b198f1b..e1c8dbb501 100644 --- a/erts/doc/src/notes.xml +++ b/erts/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 +31,457 @@ </header> <p>This document describes the changes made to the ERTS application.</p> +<section><title>Erts 8.3.5.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A timer internal bit-field used for storing scheduler id + was too small. As a result, VM internal timer data + structures could become inconsistent when using 1024 + schedulers on the system. Note that systems with less + than 1024 schedulers are not effected by this bug.</p> + <p> + This bug was introduced in ERTS version 7.0 (OTP 18.0).</p> + <p> + Own Id: OTP-14548 Aux Id: OTP-11997, ERL-468 </p> + </item> + <item> + <p> + Fixed bug in <c>binary_to_term</c> and + <c>binary_to_atom</c> that could cause VM crash. + Typically happens when the last character of an UTF8 + string is in the range 128 to 255, but truncated to only + one byte. Bug exists in <c>binary_to_term</c> since ERTS + version 5.10.2 (OTP_R16B01) and <c>binary_to_atom</c> + since ERTS version 9.0 (OTP-20.0).</p> + <p> + Own Id: OTP-14590 Aux Id: ERL-474 </p> + </item> + <item> + <p> + Fix bug causing VM crash when a module with + <c>-on_load</c> directive is loaded while + <c>erlang:trace(on_load, ...)</c> is enabled.</p> + <p> + Own Id: OTP-14612</p> + </item> + <item> + <p> + Fixed bug that could cause a VM crash when a corrupt + message is received on distribution channel from other + node.</p> + <p> + Own Id: OTP-14661 Aux Id: ERIERL-80 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.5.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix performance bug in pre-allocators that could cause + them to permanently fall back on normal more expensive + memory allocation. Pre-allocators are used for quick + allocation of short lived meta data used by messages and + other scheduled tasks. Bug exists since OTP_R15B02.</p> + <p> + Own Id: OTP-14491</p> + </item> + <item> + <p>Fixed a bug that prevented TCP sockets from being + closed properly on send timeouts.</p> + <p> + Own Id: OTP-14509</p> + </item> + <item> + <p> + Fixed bug in operator <c>bxor</c> causing erroneuos + result when one operand is a big <em>negative</em> + integer with the lowest <c>N*W</c> bits as zero and the + other operand 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-14514</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.5.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed a bug in gen_tcp:send where it never returned when + repeatedly called on a remotely closed TCP socket.</p> + <p> + Own Id: OTP-13939 Aux Id: ERL-193 </p> + </item> + <item> + <p> + Fixed segfault that could happen during cleanup of + aborted erlang:port_command/3 calls. A port_command is + aborted if the port is closed at the same time as the + port_command was issued. This bug was introduced in + erts-8.0.</p> + <p> + Own Id: OTP-14481</p> + </item> + <item> + <p> + Fixed implementation of <c>statistics(wall_clock)</c> and + <c>statistics(runtime)</c> so that values do not + unnecessarily wrap due to the emulator. Note that the + values returned by <c>statistics(runtime)</c> may still + wrap due to limitations in the underlying functionality + provided by the operating system.</p> + <p> + Own Id: OTP-14484</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.5</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Active-mode TCP sockets are now cleaned up properly on + send/shutdown errors.</p> + <p> + Own Id: OTP-14441 Aux Id: ERL-430 </p> + </item> + <item> + <p> + A code purge operation could under certain circumstances + expand the size of hibernated processes.</p> + <p> + Own Id: OTP-14444 Aux Id: ERIERL-24 </p> + </item> + <item> + <p> + Fix so that the ERL_ZZ_SIGTERM_KILL introduced in + erts-8.3.4 works.</p> + <p> + Own Id: OTP-14451</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Add option to make SIGTERM trigger the OS default + behaviour instead of doing a gracefull shutdown. To + activate this bahviour the environment variable + ERL_ZZ_SIGTERM_KILL should be set to "true". This option + only works in OTP 19 as OTP 20 will have a different way + to deal with SIGTERM.</p> + <p> + Own Id: OTP-14418 Aux Id: ERIERL-15 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed memory segment cache used for multiblock carriers. + Huge (> 2GB) memory segments could cause a VM crash. + Creation of such huge memory segments used for multiblock + carriers is however very uncommon.</p> + <p> + Own Id: OTP-14360 Aux Id: ERL-401, PR-1417 </p> + </item> + <item> + <p> + Fix release note for OTP-14290 in ERTS version 8.3.1. It + was erroneously placed under "Known Bugs and Problems".</p> + <p> + Own Id: OTP-14363 Aux Id: OTP-14290 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + The <c>+Bi</c> command line argument of <c>erl</c> + erroneously caused <c>SIGTERM</c> to be ignored by the VM + as well as of all its child processes. This bug was + introduced in erts version 8.3.</p> + <p> + Own Id: OTP-14358 Aux Id: OTP-14085 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Invoking <c>init:stop/0</c> via the SIGTERM signal, in a + non-SMP BEAM, could cause BEAM to terminate with fatal + error. This has now been fixed and the BEAM will + terminate normally when SIGTERM is received.</p> + <p> + Own Id: OTP-14290</p> + </item> + <item> + <p> + Trying to open a directory with file:read_file/1 on Unix + leaked a file descriptor. This bug has now been fixed.</p> + <p> + Own Id: OTP-14308 Aux Id: ERL-383 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a number of bugs that caused faulty stack-traces + to be generated. The faulty stack traces were generated + either when applying the following functions or tracing + the following functions:</p> <list> + <item><c>erlang:error/1</c></item> + <item><c>erlang:error/2</c></item> + <item><c>erlang:exit/1</c></item> + <item><c>erlang:throw/1</c></item> </list> + <p> + Own Id: OTP-14055</p> + </item> + <item> + <p> + Corrected documentation about memory footprint for maps.</p> + <p> + Own Id: OTP-14118</p> + </item> + <item> + <p> + Fix <c>process_info(Pid, current_stacktrace)</c> to use + stack depth limit set by + <c>system_flag(backtrace_depth)</c>. The old behavior was + a hard coded depth limit of 8.</p> + <p> + Own Id: OTP-14119 Aux Id: PR-1263 </p> + </item> + <item> + <p> + A process calling <seealso + marker="erlang#system_flag_multi_scheduling"><c>erlang:system_flag(multi_scheduling, + block)</c></seealso> could end up hanging forever in the + call.</p> + <p> + Own Id: OTP-14121</p> + </item> + <item> + <p>Dirty scheduler bug fixes:</p> <list> <item><p>Fixed + call time tracing of process being scheduled on dirty + scheduler.</p></item> <item><p>GC info from dirty + schedulers.</p></item> <item><p>Multi scheduling block + with dirty schedulers could crash the runtime + system.</p></item> <item><p>Process structures could be + removed prematurely.</p></item> <item><p>GC on dirty + scheduler could crash the runtime system.</p></item> + <item><p>Termination of a process executing on a dirty + scheduler could cause a runtime system crash.</p></item> + </list> + <p> + Own Id: OTP-14122</p> + </item> + <item> + <p> + Fixed crash that occurred when writing timer data to a + crash dump.</p> + <p> + Own Id: OTP-14133</p> + </item> + <item> + <p> + A literal area could be removed while still referred from + processes.</p> + <p> + Own Id: OTP-14134</p> + </item> + <item> + <p> + Fixed a bug in the garbage collector that could crash the + runtime system.</p> + <p> + Own Id: OTP-14135</p> + </item> + <item> + <p> + Fixed a bug in call-time trace for NIFs which caused + tracing to erroneously be started multiple times for one + call.</p> + <p> + Own Id: OTP-14136</p> + </item> + <item> + <p> + Remove a debug printout and an unnecessary garbage + collection when handling exceptions in hipe compiled + code.</p> + <p> + Own Id: OTP-14153</p> + </item> + <item> + <p> + Fix bug in tracing of garbage collection that could cause + VM crash. Bug exists since OTP 19.0.</p> + <p> + Own Id: OTP-14154</p> + </item> + <item> + <p> + Fix bug in <c>binary_to_term</c> for binaries created by + <c>term_to_binary </c> with option <c>compressed</c>. The + bug can cause <c>badarg</c> exception for a valid binary + when Erlang VM is linked against a <c>zlib</c> library of + version 1.2.9 or newer. Bug exists since OTP 17.0.</p> + <p> + Own Id: OTP-14159 Aux Id: ERL-340 </p> + </item> + <item> + <p> + Fix suspension of schedulers when generating a crashdump.</p> + <p> + Own Id: OTP-14164</p> + </item> + <item> + <p>NIF resources was not handled in a thread-safe manner + in the runtime system without SMP support.</p> + <p>As a consequence of this fix, the following driver + functions are now thread-safe also in the runtime system + without SMP support:</p> <list> + <item><p><c>driver_free_binary()</c></p></item> + <item><p><c>driver_realloc_binary()</c></p></item> + <item><p><c>driver_binary_get_refc()</c></p></item> + <item><p><c>driver_binary_inc_refc()</c></p></item> + <item><p><c>driver_binary_dec_refc()</c></p></item> + </list> + <p> + Own Id: OTP-14202</p> + </item> + <item> + <p> + Fix <c>erlang:round/1</c> for large floating point + numbers with an odd absolute value between <c>(1 bsl + 52)</c> and <c>(1 bsl 53)</c>. The result was falsely + calculated as the next higher even number even though all + integer values up to <c>(1 bsl 53)</c> can be represented + as floats with full precision.</p> + <p> + Own Id: OTP-14227</p> + </item> + <item> + <p> + Add size of literals to module code size in crash dump + and <c>(l)oaded</c> command in break menu like it used to + be before OTP-19.0.</p> + <p> + Own Id: OTP-14228</p> + </item> + <item> + <p> + Fix potential bug in <c>enif_send</c> when called without + a process context and with argument <c>msg_env</c> as + <c>NULL</c>.</p> + <p> + Own Id: OTP-14229</p> + </item> + <item> + <p> + Fix bug where passing an appendable binary to + <c>erlang:port_control()</c> could crash the emulator.</p> + <p> + Own Id: OTP-14231</p> + </item> + <item> + <p> + Receive expressions with timeout in the Erlang shell + could cause a VM crash.</p> + <p> + Own Id: OTP-14241 Aux Id: ERL-365 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + A received SIGTERM signal to beam will generate a + <c>'stop'</c> message to the <c>init</c> process and + terminate the Erlang VM nicely. This is equivalent to + calling <c>init:stop/0</c>.</p> + <p> + Own Id: OTP-14085</p> + </item> + <item> + <p> + Workaround for buggy Android implementation of + <c>PTHREAD_STACK_MIN</c> causing build of runtime system + to crash on undeclared <c>PAGE_SIZE</c>.</p> + <p> + Own Id: OTP-14165 Aux Id: ERL-319 </p> + </item> + <item> + <p> + Add configure option --without-thread-names that removes + the naming of individual emulator threads.</p> + <p> + Own Id: OTP-14234</p> + </item> + <item> + <p> + Add warning in documentation of <c>zlib:deflateInit/6</c> + about option <c>WindowsBits</c> values 8 and -8.</p> + <p> + Own Id: OTP-14254 Aux Id: ERL-362 </p> + </item> + </list> + </section> + +</section> <section><title>Erts 8.2.2</title> @@ -61,7 +512,6 @@ </section> <section><title>Erts 8.2.1</title> - <section><title>Fixed Bugs and Malfunctions</title> <list> <item> @@ -193,13 +643,6 @@ <p> Own Id: OTP-14051</p> </item> - <item> - <p> - Fixed a number of bugs that caused faulty stack-traces to - be created on exception when a process was traced.</p> - <p> - Own Id: OTP-14055</p> - </item> </list> </section> @@ -240,6 +683,22 @@ </section> +<section><title>Erts 8.1.1.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A code purge operation could under certain circumstances + expand the size of hibernated processes.</p> + <p> + Own Id: OTP-14444 Aux Id: ERIERL-24 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 8.1.1</title> <section><title>Fixed Bugs and Malfunctions</title> |