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authorBjörn-Egil Dahlberg <[email protected]>2011-10-04 17:58:42 +0200
committerBjörn-Egil Dahlberg <[email protected]>2011-10-04 17:58:42 +0200
commitd01551f400e2a7944dcc10319be0c9f248ca3179 (patch)
tree628939585bd2fc87a3c4d985474bcb7d3e3cc452 /erts/doc/src/notes.xml
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Merge branch 'dev' into major
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@@ -30,6 +30,344 @@
</header>
<p>This document describes the changes made to the ERTS application.</p>
+<section><title>Erts 5.8.5</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Several bugs concerning constant binary constructions
+ such as &lt;&lt;0:4294967295&gt;&gt; have been corrected.
+ Depending on the actual size of the binary and the type
+ of run-time system (32-bit, halfword, 64-bit), such
+ expression could either crash the run-time system or make
+ the loader refuse loading of the module.</p>
+ <p>
+ Own Id: OTP-9284</p>
+ </item>
+ <item>
+ <p>
+ The Erlsrv utility failed to stop the erlang machine if
+ no StopAction was defined when the service was stopped.
+ This is now corrected.</p>
+ <p>
+ Own Id: OTP-9344</p>
+ </item>
+ <item>
+ <p>
+ Due to a bug in glibc the runtime system could abort
+ while trying to destroy a mutex. A fix for this was
+ introduced in R14B02. This fix did, however, not solve
+ the problem. The runtime system will now issue a warning
+ instead of aborting.</p>
+ <p>
+ Own Id: OTP-9373 Aux Id: OTP-9009 </p>
+ </item>
+ <item>
+ <p>
+ Replace atom in DRV macro in prim_file with string</p>
+ <p>
+ An experimental version of Dialyzer discovered that the
+ atom that replaced the DRV macro in prim_file ends up in
+ calls to erlang:open_port({spawn, Driver}, Portopts) as
+ the Driver argument. The documentation states that this
+ call requires a string there.</p>
+ <p>
+ This change is also consistent with the one introduced in
+ commit 0f03b1e9d2bef3bc830c31a369261af4c5234727 by Kostis
+ Sagonas.</p>
+ <p>
+ Own Id: OTP-9377</p>
+ </item>
+ <item>
+ <p>
+ Fix typos in the epmd documentation (Thanks to Holger
+ Wei� )</p>
+ <p>
+ Own Id: OTP-9387</p>
+ </item>
+ <item>
+ <p>
+ Fix faulty integer terms created by NIF API from 64-bit
+ integers on halfword emulator. (Thanks to Paolo Negri and
+ Paul Davis)</p>
+ <p>
+ Own Id: OTP-9394</p>
+ </item>
+ <item>
+ <p>
+ Fix <c>epmd</c> crash on vxworks caused by faulty
+ argument to select() system call.</p>
+ <p>
+ Own Id: OTP-9427 Aux Id: seq11855 </p>
+ </item>
+ <item>
+ <p>
+ The ets:test_ms function could in rare cases truncate the
+ error messages. This is now corrected.</p>
+ <p>
+ Own Id: OTP-9435</p>
+ </item>
+ <item>
+ <p>
+ Fix bug related to hibernate and HiPE (clear
+ F_HIBERNATE_SCHED flag)</p>
+ <p>
+ F_HIBERNATE_SCHED flag that was introduced in
+ b7ecdcd1ae9e11b8f75e must be cleared in hipe_mode_switch
+ as well. Otherwise, processes running HiPE code that
+ hibernate, wake up and then trap into a BIF will not be
+ rescheduled.(Thanks to Paul Guyot)</p>
+ <p>
+ Own Id: OTP-9452</p>
+ </item>
+ <item>
+ <p>
+ Fix bug in FreeBSD topology detection code (Thanks to
+ Paul Guyot)</p>
+ <p>
+ Own Id: OTP-9453</p>
+ </item>
+ <item>
+ <p>
+ Fix use of logical operator &amp;&amp; with constant
+ operand instead of bitwise &amp; (Thanks to Cristian
+ Greco)</p>
+ <p>
+ Own Id: OTP-9454</p>
+ </item>
+ <item>
+ <p>
+ inet: error if fd does not match socket domain</p>
+ <p>
+ If an IPv4 fd is opened as an IPv6 socket, unexpected
+ behaviour can occur. For example, if an IPv4 UDP socket
+ is opened and passed into Erlang as an IPv6 socket, the
+ first 3 bytes (corresponding to 1 byte representing the
+ protocol family, 2 bytes set to the port) are stripped
+ from the payload. The cause of the UDP payload truncation
+ happens in inet_drv.c:packet_inet_input when a call to
+ inet_get_address fails silently because the family is set
+ to PF_INET6 but the buffer len is the size of an IPv4
+ struct sockaddr_in.</p>
+ <p>
+ (Thanks to Andrew Tunnell-Jones for finding the bug and
+ the test case!)</p>
+ <p>
+ Own Id: OTP-9455</p>
+ </item>
+ <item>
+ <p>
+ erts: use a union to avoid strict aliasing issues</p>
+ <p>
+ Use a union for pointer type conversion to avoid compiler
+ warnings about strict-aliasing violations with gcc-4.1.
+ gcc >= 4.2 does not emit the warning. erts: adapt
+ matrix_nif to R14 erl_nif API changes (Thanks To Tuncer
+ Ayaz)</p>
+ <p>
+ Own Id: OTP-9487</p>
+ </item>
+ <item>
+ <p>
+ fix 64-bit issues in the garbage collection (Thanks to
+ Richard Carlsson)</p>
+ <p>
+ Own Id: OTP-9488</p>
+ </item>
+ <item>
+ <p>
+ epmd: fix compiler warnings</p>
+ <p>
+ Suppress compiler warnings about ignored return values.
+ (Thanks to Michael Santos )</p>
+ <p>
+ Own Id: OTP-9500</p>
+ </item>
+ <item>
+ <p>
+ Fix non-existing function (erlang:disconnect/1) in
+ distributed reference manual (Thanks to Fabian Kr�l)</p>
+ <p>
+ Own Id: OTP-9504</p>
+ </item>
+ <item>
+ <p>
+ Document fdatasync -lrt requirement (SunOS &lt;= 5.10)
+ (Thanks to Tuncer Ayaz)</p>
+ <p>
+ Own Id: OTP-9512</p>
+ </item>
+ <item>
+ <p>
+ Let epmd ignore empty ERL_EPMD_ADDRESS</p>
+ <p>
+ If the environment variable ERL_EPMD_ADDRESS is set to
+ the empty string, empd now behaves like it does by
+ default when ERL_EPMD_ADDRESS is unset. That is, in this
+ case, epmd now listens on all available interfaces
+ instead of using only the loopback interface, which
+ happened because epmd added the loopback address to the
+ (in this case empty) list of addresses specified via
+ ERL_EPMD_ADDRESS.</p>
+ <p>
+ Also, epmd now ignores ERL_EPMD_ADDRESS if it contains
+ only separator characters (comma and space).</p>
+ <p>
+ The same applies to epmd's -address option.(Thanks to
+ Holger Wei�)</p>
+ <p>
+ Own Id: OTP-9525</p>
+ </item>
+ <item>
+ <p>
+ Remove dead code in erl_compile (Thanks to Tuncer Ayaz)</p>
+ <p>
+ Own Id: OTP-9527</p>
+ </item>
+ <item>
+ <p>
+ Add erlang:external_size/2 BIF</p>
+ <p>
+ This BIF's second parameter is a list of options.
+ Currently the only allowed option is {minor_version,
+ Version} where version is either 0 (default) or 1.
+ (Thanks to Filipe David Manana )</p>
+ <p>
+ Own Id: OTP-9528</p>
+ </item>
+ <item>
+ <p>
+ Fix enif_compare on 64bits machines</p>
+ <p>
+ In 64bits machines the Sint type has a size of 8 bytes,
+ while on 32bits machines it has a 4 bytes size.
+ enif_compare was ignoring this and therefore returning
+ incorrect values when the result of the CMP function
+ (which returns a Sint value) doesn't fit in 4 bytes.
+ (Thanks to Filipe David Manana)</p>
+ <p>
+ Own Id: OTP-9533</p>
+ </item>
+ <item>
+ <p>
+ Implement or fix -Werror option</p>
+ <p>
+ If -Werror is enabled and there are warnings no output
+ file is written. Also make sure that error/warning
+ reporting is consistent. (Thanks to Tuncer Ayaz)</p>
+ <p>
+ Own Id: OTP-9536</p>
+ </item>
+ <item>
+ <p>In some rare cases we did not have a run queue when
+ scheduling misc ops. This is now fixed.</p>
+ <p>
+ Own Id: OTP-9537</p>
+ </item>
+ <item>
+ <p>Remove misc. compiler warnings</p>
+ <p>
+ Own Id: OTP-9542</p>
+ </item>
+ <item>
+ <p>
+ Two bugs in gen_sctp has been corrected: getopts/setopts
+ hence also send could only be called from socket owner,
+ and options 'linger', 'rcvbuf' and 'sndbuf' was read from
+ wrong protocol layer hence read wrong values by getopts.</p>
+ <p>
+ Own Id: OTP-9544</p>
+ </item>
+ <item>
+ <p>
+ Erlang/OTP can now be built on MacOS X Lion.</p>
+ <p>
+ Own Id: OTP-9547</p>
+ </item>
+ <item>
+ <p> XML files have been corrected. </p>
+ <p>
+ Own Id: OTP-9550 Aux Id: OTP-9541 </p>
+ </item>
+ <item>
+ <p>
+ Fix potential errors inspired by running cppcheck(1)
+ (Thanks to Christian von Roques)</p>
+ <p>
+ Own Id: OTP-9557</p>
+ </item>
+ <item>
+ <p>When auxiliary work was enqueued on a scheduler, the
+ wakeup of the scheduler in order to handle this work
+ could be lost. Wakeups in order to handle ordinary work
+ were not effected by this bug. The bug only effected
+ runtime systems with SMP support as follows:</p> <list>
+ <item>Deallocation of some ETS data structures could be
+ delayed.</item> <item>On Linux systems not using the NPTL
+ thread library (typically ancient systems with kernel
+ versions prior to 2.6) and Windows systems, the <c>{Port,
+ {exit_status, Status}}</c> message from a terminating
+ port program could be delayed. That is, it only effected
+ port programs which had been started by passing
+ <c>exit_status</c> as an option to
+ <c>open_port/2</c>.</item> </list>
+ <p>
+ Own Id: OTP-9567</p>
+ </item>
+ <item>
+ <p>
+ Handle rare race in the crypto key server functionality</p>
+ <p>
+ Own Id: OTP-9586</p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p> Types and specifications have been added. </p>
+ <p>
+ Own Id: OTP-9356</p>
+ </item>
+ <item>
+ <p>
+ New allocator strategy "address order first fit". May
+ ease the emptying of memory carriers and thereby real
+ release of memory back to the OS.</p>
+ <p>
+ Own Id: OTP-9424</p>
+ </item>
+ <item>
+ <p>
+ The new <c>erlang:check_old_code/1</c> BIF checks whether
+ a module has old code.</p>
+ <p>
+ Own Id: OTP-9495</p>
+ </item>
+ <item>
+ <p> Update documentation and specifications of some of
+ the zlib functions. </p>
+ <p>
+ Own Id: OTP-9506</p>
+ </item>
+ <item>
+ <p>
+ Detect the available CPUs on IRIX</p>
+ <p>
+ Add support for querying the number of configured and
+ online processors on SGI systems running IRIX.(Thanks to
+ Holger Wei�)</p>
+ <p>
+ Own Id: OTP-9531</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Erts 5.8.4</title>
<section><title>Fixed Bugs and Malfunctions</title>