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diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index 4d7e578738..4913b0f204 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -31,11 +31,913 @@ </header> <p>This document describes the changes made to the ERTS application.</p> -<section><title>Erts 9.0</title> +<section><title>Erts 9.3.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed a bug which caused an emulator crash when + <c>enif_send()</c> was called by a NIF that executed on a + dirty scheduler. The bug was either triggered when the + NIF called <c>enif_send()</c> without a message + environment, or when the process executing the NIF was + <c>send</c> traced.</p> + <p> + Own Id: OTP-15223</p> + </item> + <item> + <p> + Fixed a bug causing some Erlang references to be + inconsistently ordered. This could for example cause + failure to look up certain elements with references as + keys in search data structures. This bug was introduced + in R13B02.</p> + <p> + Thanks to Simon Cornish for finding the bug and supplying + a fix.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-15225</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a race condition in the inet driver that could + cause receive to hang when the emulator was compiled with + gcc 8.</p> + <p> + Own Id: OTP-15158 Aux Id: ERL-654 </p> + </item> + <item> + <p> + Fix bug in generation of erl_crash.dump, which could + cause VM to crash.</p> + <p> + Bug exist since erts-9.2 (OTP-20.2).</p> + <p> + Own Id: OTP-15181</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a rare bug that could cause processes to be + scheduled after they had been freed.</p> + <p> + Own Id: OTP-15067 Aux Id: ERL-573 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed bug in <c>ets</c> that could cause VM crash if + process A terminates after fixating a table and process B + deletes the table at "the same time". The table fixation + could be done with <c>ets:safe_fixtable</c> or if process + A terminates in the middle of a long running + <c>select</c> or <c>match</c> call.</p> + <p> + Own Id: OTP-15109</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed bug in <c>enif_binary_to_term</c> which could cause + memory corruption for immediate terms (atoms, small + integers, pids, ports, empty lists).</p> + <p> + Own Id: OTP-15080</p> + </item> + <item> + <p> + Fixed bug in <c>erlang:system_profile/2</c> that could + cause superfluous <c>{profile,_,active,_,_}</c> messages + for terminating processes.</p> + <p> + Own Id: OTP-15085</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a crash in <c>heart:get_cmd/0</c> when the + stored command was too long.</p> + <p> + Own Id: OTP-15034</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed a <c>configure</c> test for <c>libz</c> internals + that unintentionally caused various native code in OTP to + link against <c>libz</c>. Under certain circumstances + this caused the build of OTP to fail.</p> + <p> + Own Id: OTP-14840 Aux Id: ERL-529 </p> + </item> + <item> + <p> + File names containing unicode codepoints larger than 255 + were not correctly encoded in stack traces.</p> + <p> + Own Id: OTP-14847 Aux Id: ERL-544 </p> + </item> + <item> + <p> + Fix HiPE bug for binary constructs like + <c><<X/utf8>></c> which could in rare cases + cause faulty results or VM crash.</p> + <p> + This fix affects both the <c>hipe</c> compiler and + <c>erts</c> runtime in an <em>incompatible</em> way. Old + hipe compiled files need to be recompiled to load and run + properly as native.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14850 Aux Id: PR-1664 </p> + </item> + <item> + <p> + Fix <c>term_to_binary/2</c> spec for + <c>minor_version</c>.</p> + <p> + Own Id: OTP-14876 Aux Id: ERL-548 </p> + </item> + <item> + <p> + Fix bug in erlang:binary_to_integer/2 where invalid + characters were not detected for bases larger then 10. + e.g. <c>binary_to_integer(<<":">>, 16)</c> + would return 3 and not badarg as it should.</p> + <p> + Own Id: OTP-14879</p> + </item> + <item> + <p>Fixed bug in <c>float_to_list/2</c> and + <c>float_to_binary/2</c> with option <c>decimals</c> that + caused a faulty rounding up of the last decimal digit for + about 6% of floats with a fraction part.</p> + <p>For example, <c>float_to_list(0.145, + [{decimals,1}])</c> returned <c>"0.2"</c> instead of + <c>"0.1"</c>.</p> + <p> + Own Id: OTP-14890</p> + </item> + <item> + <p> + Fix bug causing slow hipe execution in modules loaded + early during boot or loaded by <c>code:atomic_load</c> or + <c>code:finish_loading</c>.</p> + <p> + Own Id: OTP-14891</p> + </item> + <item> + <p>Fixed a buffer overflow in an internal string + formatting function that could be hit if specifying a + long floating-point format specifier to + <c>erts_sprintf</c> or similar.</p> + <p> + Own Id: OTP-14920</p> + </item> + <item> + <p><c>erlang:iolist_to_iovec/1</c> and + <c>enif_inspect_iovec</c> will no longer fail when + provided with binaries that have been matched-out on a + non-byte boundary.</p> + <p> + Own Id: OTP-14921</p> + </item> + <item> + <p><c>iolist_to_binary/1</c> and + <c>erlang:iolist_to_iovec/1</c> will now badarg if + supplied with a bitstring (without a list).</p> + <p> + Own Id: OTP-14926</p> + </item> + <item> + <p> + Reject loading modules with names containing directory + separators ('/' or '\' on Windows).</p> + <p> + Own Id: OTP-14933 Aux Id: ERL-564, PR-1716 </p> + </item> + <item> + <p> + Fix potential dead-lock when the tracer process dies + while a the traced process is running on a dirty + scheduler.</p> + <p> + Own Id: OTP-14938</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + More crash dump info such as: process binary virtual heap + stats, full info for process causing out-of-mem during + GC, more port related info, and dirty scheduler info.</p> + <p> + Own Id: OTP-14820</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.2.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Improve search algorithm of abandoned memory carriers. + Instead of limited linear search, each allocator instance + maintain a balanced search tree of all its abandoned + carriers for faster and more exhaustive search.</p> + <p> + Own Id: OTP-14915 Aux Id: ERIERL-88 </p> + </item> + <item> + <p> + New erts_alloc command line options <c>+M_acnl</c> and + <c>+M_acfml</c> to limit carrier abandonment.</p> + <p> + Own Id: OTP-14916 Aux Id: ERIERL-88 </p> + </item> + <item> + <p> + New family of <c>erts_alloc</c> strategies: Age Order + First Fit. Similar to "address order", but instead the + oldest possible carrier is always chosen for allocation.</p> + <p> + Own Id: OTP-14917 Aux Id: ERIERL-88 </p> + </item> + <item> + <p> + Add possibility to change allocator options at runtime + with <c>system_info(erts_alloc, ...)</c>. Only option + <c>sbct</c> (single block carrier threshold) is currently + supported via this interface.</p> + <p> + Own Id: OTP-14918 Aux Id: ERIERL-88 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix a bug in tracing where the {caller} match spec + function would be set to undefined incorrectly when used + in conjunction with return_to or return_trace on some + functions.</p> + <p> + The functions effected are: erlang:put/2, erlang:erase/1, + erlang:process_info/1,2, erlang:nif_load/2, + erts_internal:garbage_collection/1 and + erts_internal:check_process_code/1.</p> + <p> + Because of this bug, the analysis done by fprof could + become incorrect when the functions above are the + tail-call in a function.</p> + <p> + Own Id: OTP-14677</p> + </item> + <item> + <p> + Fix emulator deadlock that would happen if + <c>trap_exit</c> was set to true and a process sends an + exit signal to itself using <c>exit(self(), Reason)</c> + while receive tracing was enabled for that process.</p> + <p> + Own Id: OTP-14678 Aux Id: ERL-495 </p> + </item> + <item> + <p>Writing of crash dumps is significantly faster.</p> + <p>Maps are now included in crash dumps.</p> + <p>Constants terms would only be shown in one process, + while other processes referencing the same constant term + would show a marker for incomplete heap. </p> + <p> + Own Id: OTP-14685 Aux Id: OTP-14611, OTP-14603, OTP-14595 </p> + </item> + <item> + <p> + The fallback home directory for windows has been changed + to be the PROFILE directory instead of the WINDOWS + directory. The fallback is used when the environment + variables HOMEDRIVE and HOMEPATH have not been set.</p> + <p> + Own Id: OTP-14691</p> + </item> + <item> + <p> + Fix bug for hipe compiled code using + <c><<X/utf32>></c> binary construction that + could cause faulty result or even VM crash.</p> + <p> + On architectures other than x86_64, code need to be + recompiled to benefit from this fix.</p> + <p> + Own Id: OTP-14740</p> + </item> + <item> + <p> + Fixed bug in <c>erlang:garbage_collect/2</c> and + <c>erlang:check_process_code/3</c>, when called with + option <c>{async,ReqestId}</c>. Could cause VM crash or + heap corruption if <c>RequestId</c> was an immediate term + (like a pid, atom or small integer). Bug exists since + OTP-17.0.</p> + <p> + Own Id: OTP-14752</p> + </item> + <item> + <p>ERL_NIF_MINOR_VERSION wasn't bumped with the addition + of <c>enif_ioq_*</c>.</p> + <p> + Own Id: OTP-14779</p> + </item> + <item> + <p>Purging of loaded code that contained "fake literals" + (for example the magic reference obtained from + '<c>ets:new/2</c>') would crash the runtime system. + Corrected.</p> + <p> + Own Id: OTP-14791</p> + </item> + <item> + <p>Setting the size of the atom table to a number near + 2147483647 (using the '<c>+t</c>' option) would cause the + emulator to exit with a failure to allocate a huge amount + of memory. This has been corrected. Also the usage + message for the '<c>+t</c>' option has been corrected to + show the correct upper limit 2147483647 instead of 0.</p> + <p> + Own Id: OTP-14796</p> + </item> + <item> + <p>Fixed a bug that prevented registered process names + from being resolved in lcnt results.</p> + <p> + Own Id: OTP-14803</p> + </item> + <item> + <p>Formatting bugs were fixed in several HiPE debug + BIFs.</p> + <p> + Own Id: OTP-14804</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Binaries and some other data in crash dumps are now + encoded in base64 (instead of in hex), which will reduce + the size of crash dumps.</p> + <p>A few bugs in the handling of sub binaries in + <c>crashdump_viewer</c> have been fixed.</p> + <p> + Own Id: OTP-14686</p> + </item> + <item> + <p> + Micro optimization for send operations of messages to + other nodes. The local ack-message, which is otherwise + sent back from TPC/IP port driver to sending client + process, is now ignored earlier for distributed send + operations.</p> + <p> + Own Id: OTP-14689</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.1.5</title> <section><title>Fixed Bugs and Malfunctions</title> <list> <item> + <p>Fixed a bug in file closure on Unix; close(2) was + retried on EINTR which could cause a different (recently + opened) file to be closed as well.</p> + <p> + Own Id: OTP-14775</p> + </item> + <item> + <p> + A race-condition when tearing down a connection with + active node monitors could cause the runtime system to + crash.</p> + <p> + This bug was introduced in ERTS version 8.0 (OTP 19.0).</p> + <p> + Own Id: OTP-14781 Aux Id: OTP-13047 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.1.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Microstate accounting sometimes produced incorrect + results for dirty schedulers.</p> + <p> + Own Id: OTP-14707</p> + </item> + <item> + <p>Fixed a regression in <c>zlib:gunzip/1</c> that + prevented it from working when the decompressed size was + a perfect multiple of 16384. This regression was + introduced in 20.1.1</p> + <p> + Own Id: OTP-14730 Aux Id: ERL-507 </p> + </item> + <item> + <p>Fixed a memory corruption bug in + <c>enif_inspect_iovec</c>; writable binaries stayed + writable after entering the iovec.</p> + <p> + Own Id: OTP-14745</p> + </item> + <item> + <p>Fixed a crash in <c>enif_inspect_iovec</c> on + encountering empty binaries.</p> + <p> + Own Id: OTP-14750</p> + </item> + <item> + <p><c>zlib:deflateParams/3</c> will no longer return + <c>buf_error</c> when called after <c>zlib:deflate/2</c> + with zlib <c>1.2.11</c>.</p> + <p> + Own Id: OTP-14751</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.1.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Added zlib:set_controlling_process/2 to move a + zstream() between processes.</p> + <p> + Own Id: OTP-14672 Aux Id: ERL-494 </p> + </item> + <item> + <p> + Fix so that schedulers are bound correctly when the first + available cpu is not the first detected cpu. e.g. when + using "taskset -c X..Y" when X is not equal to 0.</p> + <p> + Own Id: OTP-14694</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.1.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <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 9.1.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>The new zlib module returned a data_error when + inflating concatenated streams, which was incompatible + with the old module's behavior of returning the + uncompressed data up to the end of the first stream.</p> + <p> + Own Id: OTP-14648</p> + </item> + <item> + <p>zlib:gunzip/1 will no longer stop at the end of the + first stream when decompressing concatenated gzip + files.</p> + <p> + Own Id: OTP-14649</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Changed <c>erlang:apply/2</c> to raise a <c>badarg</c> + exception if the second argument is not a proper list. + Previous behavior was a misleading <c>undef</c> + exception.</p> + <p> + Own Id: OTP-14490 Aux Id: ERL-432 </p> + </item> + <item> + <p>On macOS, <c>crypto</c> would crash if <c>observer</c> + had been started before <c>crypto</c>. On the beta for + macOS 10.13 (High Sierra), <c>crypto</c> would crash. + Both of those bugs have been fixed.</p> + <p> + Own Id: OTP-14499 Aux Id: ERL-251 ERL-439 </p> + </item> + <item> + <p> + Fixed bug in enif_whereis_pid/port that could cause heap + corruption in rare cases.</p> + <p> + Own Id: OTP-14523</p> + </item> + <item> + <p> + Fix so that trace messages generated when in a dirty nif + are flushed correctly when the dirty nif is done + executing.</p> + <p> + Own Id: OTP-14538</p> + </item> + <item> + <p> + Fix escape code handling when using ANSI color codes in + the shell.</p> + <p> + Own Id: OTP-14549 Aux Id: PR1536 </p> + </item> + <item> + <p> + Upgraded the ERTS internal PCRE library from version 8.40 + to version 8.41. See <url + href="http://pcre.org/original/changelog.txt">http://pcre.org/original/changelog.txt</url> + for information about changes made to PCRE. This library + implements major parts of the <seealso + marker="stdlib:re"><c>re</c></seealso> regular + expressions module.</p> + <p> + Own Id: OTP-14574</p> + </item> + <item> + <p> + Fixed a bug causing <c>statistics(runtime)</c> to produce + negative values and a bug in + <c>statistics(wall_clock)</c> causing it to produce + values one second too long.</p> + <p> + <c>statistics(runtime)</c> now also use + <c>getrusage()</c> as source when available preventing + the returned value from wrapping as frequent as before.</p> + <p> + Own Id: OTP-14597 Aux Id: ERL-465 </p> + </item> + <item> + <p> + Fixed small memory leak that could occur when sending to + a terminating port.</p> + <p> + Own Id: OTP-14609</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>A warning that the compiler may optimize away atoms + have been added to the documentation of + <c>list_to_existing_atom/1</c> and + <c>binary_to_existing_atom/2</c>.</p> + <p> + Own Id: OTP-14614 Aux Id: ERL-453 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Lock counting can now be fully toggled at runtime in + the lock counting emulator (<c>-emu_type lcnt</c>). + Everything is enabled by default to match the old + behavior, but specific categories can be toggled at will + with minimal runtime overhead when disabled. Refer to the + documentation on <c>lcnt:rt_mask/1</c> for details.</p> + <p> + Own Id: OTP-13170</p> + </item> + <item> + <p>The <c>zlib</c> module has been refactored and all its + operations will now yield appropriately, allowing them to + be used freely in concurrent applications.</p> <p>The + following functions have been deprecated, but will not + produce compiler warnings until OTP 21: + <c>zlib:adler32</c>, <c>zlib:crc32</c>, + <c>zlib:inflateChunk</c>, <c>zlib:getBufSize</c>, + <c>zlib:setBufSize</c>.</p> <p>The behavior of throwing + an error when a dictionary is required for decompression + has also been deprecated. Refer to the documentation on + <c>inflateSetDictionary/2</c> for details.</p> + <p> + Own Id: OTP-14185</p> + </item> + <item> + <p><c>lcnt:collect</c> and <c>lcnt:clear</c> will no + longer block all other threads in the runtime system.</p> + <p> + Own Id: OTP-14412</p> + </item> + <item> + <p>Add <c>erlang:iolist_to_iovec/1</c>, which converts an + iolist() to an erlang:iovec(), which suitable for use + with <c>enif_inspect_iovec</c>.</p> + <p> + Own Id: OTP-14520</p> + </item> + <item> + <p>When provided with bad arguments, the <c>zlib</c> + module will now raise named exceptions instead of just + <c>badarg</c>. For example, <c>not_initialized</c> when + using <c>zlib:inflate/2</c> with an uninitialized + stream.</p> + <p> + Own Id: OTP-14527</p> + </item> + <item> + <p> + <c>erlang:halt/2</c> allows any Unicode string as slogan + for the crash dump.</p> + <p> + Own Id: OTP-14553</p> + </item> + <item> + <p>Add new nif API functions for managing an I/O Queue. + The added functions are:</p> <list type="bulleted"> + <item><seealso marker="erl_nif#enif_ioq_create"> + <c>enif_ioq_create()</c></seealso></item> <item><seealso + marker="erl_nif#enif_ioq_destroy"> + <c>enif_ioq_destroy()</c></seealso></item> <item><seealso + marker="erl_nif#enif_ioq_enq_binary"> + <c>enif_ioq_enq_binary()</c></seealso></item> + <item><seealso marker="erl_nif#enif_ioq_enqv"> + <c>enif_ioq_enqv()</c></seealso></item> <item><seealso + marker="erl_nif#enif_ioq_deq"> + <c>enif_ioq_deq()</c></seealso></item> <item><seealso + marker="erl_nif#enif_ioq_peek"> + <c>enif_ioq_peek()</c></seealso></item> <item><seealso + marker="erl_nif#enif_inspect_iovec"> + <c>enif_inspect_iovec()</c></seealso></item> + <item><seealso marker="erl_nif#enif_free_iovec"> + <c>enif_free_iovec()</c></seealso></item> </list> + <p> + Own Id: OTP-14598</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.0.5</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <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> + </list> + </section> + +</section> + +<section><title>Erts 9.0.4</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> + Automatic cleanup of a BIF timer, when the owner process + terminated, could race with the timeout of the timer. + This could cause the VM internal data structures to + become inconsistent which very likely caused a VM crash.</p> + <p> + This bug was introduced in ERTS version 9.0 (OTP 20.0).</p> + <p> + Own Id: OTP-14554 Aux Id: OTP-14356, ERL-468 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.0.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Binary append operations did not check for overflow, + resulting in nonsensical results when huge binaries were + appended.</p> + <p> + Own Id: OTP-14524</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.0.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Added missing release notes for OTP-14491 ("performance + bug in pre-allocators") which was included in erts-9.0.1 + (OTP-20.0.1).</p> + <p> + Own Id: OTP-14494</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 9.0.1</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> + <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. + [this release note was missing in erts-9.0.1]</p> + <p> + Own Id: OTP-14491</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 9.0</title> + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> <p>Fix various bugs regarding loading, upgrade and purge of HiPE compiled code:</p> <list> <item>The native code memory for a purged module was never deallocated.</item> @@ -474,7 +1376,7 @@ marker="erts:erl"><c>erl</c></seealso> command.</p> <p> See <url - href="http://pcre.org/original/changelog.txt"><c>http://pcre.org/original/changelog.txt</c></url> + href="http://pcre.org/original/changelog.txt">http://pcre.org/original/changelog.txt</url> for information about changes made to PCRE between the versions 8.33 and 8.40.</p> <p> @@ -631,6 +1533,127 @@ </section> +<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> @@ -2337,6 +3360,58 @@ </section> +<section><title>Erts 7.3.1.4</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 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> + <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> + </list> + </section> +</section> + <section><title>Erts 7.3.1.3</title> <section><title>Fixed Bugs and Malfunctions</title> |