Bug fix release : otp_src_R12B-1
Build date : 2008-02-06
This is bug fix release 1 for the R12B release.
You can download the full source distribution from
http://www.erlang.org/download/otp_src_R12B-1.tar.gz
http://www.erlang.org/download/otp_src_R12B-1.readme (this file)
Note: To unpack the TAR archive you need a GNU TAR compatible program.
For installation instructions please read the README that is part of
the distribution.
The Windows binary distribution can be downloaded from
http://www.erlang.org/download/otp_win32_R12B-1.exe
On-line documentation can be found at http://www.erlang.org/doc/.
You can also download the complete HTML documentation or the Unix manual files
http://www.erlang.org/download/otp_doc_html_R12B-1.tar.gz
http://www.erlang.org/download/otp_doc_man_R12B-1.tar.gz
We also want to thank those that sent us patches, suggestions and bug
reports,
The OTP Team
--- HIGHLIGHTS ------------------------------------------------------------
OTP-7100 Memory management improvements especially for the runtime
system with SMP support:
The runtime system with SMP support can now use multiple,
thread specific instances of most memory allocators. This
improves performance since it reduces lock contention in the
memory allocators. It may however increase memory usage for
some applications. The runtime system with SMP support will
by default enable this feature on most allocators. The amount
of instances used can be configured.
driver_alloc(), driver_realloc(), and driver_free() now use
their own erts specific memory allocator instead of the
default malloc() implementation on the system.
The default configuration of some allocators have been
changed to fit applications that use much memory better.
Some new erts_alloc configuration parameters have been added.
erts_alloc_config has been modified to be able to create
configurations suitable for multiple instances of allocators.
The returned value from erlang:system_info({allocator,
Alloc}) has been changed. This since an allocator may now run
in multiple instances.
If you for some reason want the memory allocators to be
configured as before, you can pass the +Mea r11b command-line
argument to erl.
For more information see the erts_alloc(3), the
erts_alloc_config(3), and the erlang(3) documentation.
--- documentation ------------------------------------------------------------
OTP-7016 Added missing parenthesis in an example of the binary
comprehensions in the Reference manual. (Thanks to igwan.)
OTP-7125 Corrected the example in Common Caveats, section 3.4. (Thanks
to Ulf Wiger.)
--- otp ------------------------------------------------------------
OTP-7058 All config.{guess,sub} files in OTP have been updated and all
applications using these files now use the same versions. The
makefile variable TARGET is now exported in the top makefile.
(Thanks to Christian Faulhammer and Sergei Golovan)
OTP-7059 A failure in a recursive make is now propagated. (Thanks to
Christian Faulhammer)
OTP-7092 When building from source, the configure script is better at
finding problems with static linking of OpenSSL. Dynamic
linking is instead selected when such problems occur. Dynamic
linking of OpenSSL is now also possible to force by giving
the option --enable-dynamic-ssl-lib to configure.
--- common_test-1.3.1 ------------------------------------------------------------
OTP-7111 The rx library, included with common_test, failed to build on
on some architectures because the -fPIC compiler option was
missing.
--- compiler-4.5.1 ------------------------------------------------------------
OTP-7018 A match expression inside a function call could cause a false
"a term is constructed but never used" warning.
OTP-7022 The compiler could crash if a binary tail was matched out,
and then used in a binary append operation. (Thanks to Oleg
Avdeev.)
Similarly, the compiler could crash if a binary tail was
matched out, and then used (incorrectly) in binary
construction in an integer field. (Thanks to Fredrik Svahn.)
Or was incorrectly used in a float field. Or was used in a
binary field with a given length. (Thanks to Chih - Wei Yu.)
OTP-7029 Matching an empty binary in a record and then using the same
record again could cause a compiler crash. (Thanks to Fredrik
Thulin.)
OTP-7073 In rare circumstances, constants containing floating points
and integers could be confused. Example:
f(a) -> [1]; f(b) -> [1.0].
Both f(a) and f(b) would return [1].
OTP-7094 Some bit syntax code such as
matching d(_,<<>>) -> one; d(0,<<D>>) ->two.
could crash the compiler. (Thanks to Simon Cornish.)
OTP-7101 The compiler could generate suboptimal code for record
updates if the record update code consisted of multiple
source code lines.
OTP-7102 In unusual circumstances, a call to a fun could fail due to
an unsafe optimization. (Thanks to Simon Cornish.)
OTP-7113 Bit syntax matching with a guard containing two or more uses
of andalso/orelse could cause the compiler to crash. (Thanks
to Mateusz Berezecki.)
OTP-7117 This was only a problem if you generated or wrote your own
Core Erlang code: The Core Erlang optimizer code could move
nested calls such as erlang:'<'(erlang:length(L), 2) as case
expression into a guard, which would change the semantics.
(Thanks to Robert Virding.)
--- debugger-3.1.1.2 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
--- dialyzer-1.7.2 ------------------------------------------------------------
OTP-7134 The warnings returned by the Erlang interface now contains a
tag describing the type of warning.
--- docbuilder-0.9.8 ------------------------------------------------------------
OTP-7027 The generated html should now be valid xhtml (with a few
exceptions to be fixed in next version).
--- erl_interface-3.5.5.4 ------------------------------------------------------------
OTP-7093 Corrected FreeBSD build error.
--- erts-5.6.1 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
OTP-7006 The SMP emulator on sparc64 erroneously used the sparc32
atomic and the sparc32 spinlock implementations which caused
it to crash.
OTP-7008 Call tracing the new guard BIFs byte_size, bit_size, or
tuple_size and the loading a module that uses one of those
functions, could cause the emulator to terminate.
OTP-7014 configuring --enable-darwin-universal or
--enable-darwin-64bit on MacOSX could result in a non
optimized emulator. Top level configure script now corrected.
OTP-7015 configuring --with-gd did not produce correct include flags
for percept.
OTP-7035 Environment variables weren't handled in thread safe manner
in the runtime system with SMP support on Windows.
erl_drv_putenv(), and erl_drv_getenv() has been introduced
for use in drivers. Do not use putenv(), or getenv() directly
in drivers. For more information see the erl_driver
documentation.
OTP-7067 HIPE: Corrected the choice of interface to the send/3 and
setnode/3 BIFs for native-compiled code. Using the incorrect
interface could, in unusual circumstances, lead to random
runtime errors.
OTP-7068 Garbage collections could become extremely slow when there
were many keys in the process dictionary. (Thanks to Fredrik
Svahn.)
OTP-7070 The duplicate documentation directory in the windows
installation is removed.
OTP-7079 Documentation bugfixes and clarifications. (Thanks to Joern
(opendev@gmail.com), Matthias Lang, and Richard Carlsson.)
OTP-7080 The runtime system with SMP support not using the native
atomic integer implementation part of OTP could deadlock when
run on a system with more than one logical processor. That
is, only the runtime system with SMP support on other
hardware platforms than x86, x86_64, sparc32, and powerpc32
were effected by this bug.
OTP-7085 Bit syntax construction with a small integer in a non-byte
aligned field wider than the CPU's word size could cause
garbage bits in the beginning of the field.
OTP-7086 All Windows versions older than Windows 2000 are now not
supported by the Erlang runtime system. This since there was
a need for usage of features introduced in Windows 2000.
OTP-7100 Memory management improvements especially for the runtime
system with SMP support:
The runtime system with SMP support can now use multiple,
thread specific instances of most memory allocators. This
improves performance since it reduces lock contention in the
memory allocators. It may however increase memory usage for
some applications. The runtime system with SMP support will
by default enable this feature on most allocators. The amount
of instances used can be configured.
driver_alloc(), driver_realloc(), and driver_free() now use
their own erts specific memory allocator instead of the
default malloc() implementation on the system.
The default configuration of some allocators have been
changed to fit applications that use much memory better.
Some new erts_alloc configuration parameters have been added.
erts_alloc_config has been modified to be able to create
configurations suitable for multiple instances of allocators.
The returned value from erlang:system_info({allocator,
Alloc}) has been changed. This since an allocator may now run
in multiple instances.
If you for some reason want the memory allocators to be
configured as before, you can pass the +Mea r11b command-line
argument to erl.
For more information see the erts_alloc(3), the
erts_alloc_config(3), and the erlang(3) documentation.
OTP-7104 The break handling code (run when Ctrl-C is hit) could could
potentially deadlock the runtime system with SMP support.
OTP-7120 The sctp driver has been updated to work against newer lksctp
packages e.g 1.0.7 that uses the API spelling change adaption
-> adaptation. Older lksctp (1.0.6) still work. The erlang
API in gen_sctp.erl and inet_sctp.hrl now spells 'adaptation'
regardless of the underlying C API.
OTP-7122 On Unix, denormalized floating point numbers could not be
created using list_to_float/1 or binary_to_term/1. (Thanks to
Matthew Dempsky.)
OTP-7127 A bug in erlang:phash2/1 on 64-bit platforms has been fixed.
(Thanks to Scott Lystig Fritchie.)
OTP-7130 Native atomic integers and spin-locks are now also available
for the runtime system with SMP support on sparc64.
OTP-7131 FP exceptions support for sparc64 userspace on Linux has been
added. Note that FP exception support is now turned off by
default, so to actually enable it you need to do './configure
--enable-fp-exceptions'.
OTP-7132 The emulator could under rare circumstances crash while
garbage collecting.
--- gs-1.5.8 ------------------------------------------------------------
OTP-7115 Uses wish85 if available and fixed 'gs error:
gstk_port_handler: error in input : unknown option "-sta"'
error. Thanks Vance Shipley
--- hipe-3.6.5 ------------------------------------------------------------
OTP-7067 HIPE: Corrected the choice of interface to the send/3 and
setnode/3 BIFs for native-compiled code. Using the incorrect
interface could, in unusual circumstances, lead to random
runtime errors.
OTP-7133 The HiPE compiler's SPARC backend has been rewritten,
improving its correctness and long-term maintainability.
--- inets-5.0.1 ------------------------------------------------------------
OTP-7040 [httpd] - Deprecated function httpd:start/1 did not accept
all inputs that it had done previously. This should now work
again.
OTP-7041 [httpd] - Changed validity check on bind_address so that it
uses inet:getaddr instead of inet:gethostbyaddr as the former
puts a too hard restriction on the bind_address.
OTP-7042 [httpc] - Internal process now does try-catch and terminates
normally in case of HTTP parse errors. Semantical the client
works just as before returning an error message to the
client, even if the error massage has been enhanced, but
there is no supervisor report in the shell of a internal
process crashing. (Which was the expected behavior and not a
fault.)
--- inets-5.0.2 ------------------------------------------------------------
OTP-6661 [httpd] - Error logs now has a pretty and a compact format
and access logs can be written on the common log format or
the extended common log format.
OTP-7024 [httpc] - Added acceptance of missing reason phrase to the
relaxed mode.
OTP-7043 [httpc] - A new option has been added to enable the client to
act as lower version clients, by default the client is an
HTTP/1.1 client.
--- kernel-2.12.1 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
OTP-7009 tuple_size/1 and byte_size/1 have been substituted for
size/1.
OTP-7013 file:read/2 and file:consult_stream/1,3 did not use an empty
prompt on I/O devices. This bug has now been corrected.
OTP-7120 The sctp driver has been updated to work against newer lksctp
packages e.g 1.0.7 that uses the API spelling change adaption
-> adaptation. Older lksctp (1.0.6) still work. The erlang
API in gen_sctp.erl and inet_sctp.hrl now spells 'adaptation'
regardless of the underlying C API.
--- megaco-3.7.1 ------------------------------------------------------------
OTP-6919 Use of depricated function erlang:fault replaced by
erlang:error.
OTP-6971 When the megaco application receives two instances of the
same transaction requests (re-send) within too small a time,
there is a small possibility that both are passed on to the
user via a call to the callback function
(handle_trans_request).
OTP-6992 Failure to parse SDP attribute FMTP rows.
OTP-6999 Fixed a reply timer race condition problem resulting in (case
clause) error message.
OTP-7000 Updated documentation for function megaco:connect/4.
OTP-7005 Reporting of error(s) detected during loading of the flex
driver has been improved, by calling the erlang:format_error
function.
OTP-7124 Corrected usage of function file:open/2 (the Modes argument
is a list).
--- odbc-2.10 ------------------------------------------------------------
OTP-7062 Enhanced configure to among other things work better when
there is a library found but it is not usable e.i. 32 bit
library in 64 bit build.
--- os_mon-2.1.5 ------------------------------------------------------------
OTP-7108 CPU utilization, on linux, is now measured via a port program
instead of os:cmd in erlang. This should enhance performance.
--- parsetools-1.4.3 ------------------------------------------------------------
OTP-7009 tuple_size/1 and byte_size/1 have been substituted for
size/1.
--- percept-0.6.2 ------------------------------------------------------------
OTP-7126 A new module, percept_profile, can now be used to collect
profiling data even if the percept application is not
installed. This should help profiling erlang application on
target machines without libgd installed.
--- runtime_tools-1.7.1 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
OTP-7100 Memory management improvements especially for the runtime
system with SMP support:
The runtime system with SMP support can now use multiple,
thread specific instances of most memory allocators. This
improves performance since it reduces lock contention in the
memory allocators. It may however increase memory usage for
some applications. The runtime system with SMP support will
by default enable this feature on most allocators. The amount
of instances used can be configured.
driver_alloc(), driver_realloc(), and driver_free() now use
their own erts specific memory allocator instead of the
default malloc() implementation on the system.
The default configuration of some allocators have been
changed to fit applications that use much memory better.
Some new erts_alloc configuration parameters have been added.
erts_alloc_config has been modified to be able to create
configurations suitable for multiple instances of allocators.
The returned value from erlang:system_info({allocator,
Alloc}) has been changed. This since an allocator may now run
in multiple instances.
If you for some reason want the memory allocators to be
configured as before, you can pass the +Mea r11b command-line
argument to erl.
For more information see the erts_alloc(3), the
erts_alloc_config(3), and the erlang(3) documentation.
--- snmp-4.10.1 ------------------------------------------------------------
OTP-7083 There is a bug in snmp_pdus:enc_oct_str_tag/1. All the enc_*
functions are supposed to return a flat list, but the second
clause of this function does not. If it gets a binary it
returns a deep list.
OTP-7109 The SNMP application contains some simple utility functions
that wrappes dbg. These functions is intended to make it easy
to enable tracing on individual functions. There where some
miscellaneous errors which has been corrected.
OTP-7110 Corrected usage of function file:open/2 (the Modes argument
is a list).
OTP-7119 Old style funs cleanup in the MIB compiler.
OTP-7121 [agent] Remeoved invalid guard. There was an invalid guard on
the start function of the top agent supervisor.
OTP-7123 [manager] Fixed usage of inet:gethostname/1.
--- ssh-0.9.9.5 ------------------------------------------------------------
OTP-7063 Documentation update of ssh.
OTP-7089 ssh_cm hanged when connection was closed during handshake.
(Triggered by putty 0.60 client.)
OTP-7090 Same listener is used for both sshd and sftpd. Previously the
sftpd server had to be run on a separate port, now the sshd
listener will start an sftpd server when an sftp client
connects.
OTP-7135 Fixed crash in server when receiving an empty ignore-msg.
(From the putty 0.60 client.)
--- stdlib-1.15.1 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
OTP-7009 tuple_size/1 and byte_size/1 have been substituted for
size/1.
OTP-7025 Ets:select/3 in combination with ets:repair_continuation/2
and ordered_set data tables could result in function_clause
although used as intended. This is now corrected. Thanks to
Paul Mineiro for finding and isolating the bug!
OTP-7026 It is now possible to hibernate a
gen_server/gen_event/gen_fsm. In gen_server and gen_fsm,
hibernation is triggered by returning the atom
'hibernate' instead of a timeout value. In the gen_event case
hibernation is triggered by a event handler returning a tuple
with an extra element containing the atom 'hibernate'.
OTP-7034 The compiler warning for the deprecated function ftp:close/1
now mentions the correct replacement function.
The warning for the removed functions in the httpd_util
module have been changed to say they have been removed, not
merely deprecated. (Thanks to Fredrik Thulin.)
OTP-7066 Some undocumented debug functionality has been added to Dets.
OTP-7078 In (Expr)#r{} (no fields are updated), Expr is no longer
evaluated more than once. There is also a test that Expr is
of the correct record type. (Thanks to Dominic Williams.)
OTP-7079 Documentation bugfixes and clarifications. (Thanks to Joern
(opendev@gmail.com), Matthias Lang, and Richard Carlsson.)
OTP-7081 The functions digraph_utils:is_tree/1,
digraph_utils:is_arborescence/1, and
digraph_utils:arborescence_root/1 are new.
OTP-7101 The compiler could generate suboptimal code for record
updates if the record update code consisted of multiple
source code lines.
OTP-7114 Duplicated objects were sometimes not deleted from the list
of answers when a QLC table was traversed using a match
specification. (Thanks to Dmitri Girenko.)
--- test_server-3.2.1 ------------------------------------------------------------
OTP-7091 When init_per_suite or end_per_suite terminated due to
runtime failure, test_server failed to format the line number
information properly and crashed. This error has now been
fixed.
--- tools-2.6.1 ------------------------------------------------------------
OTP-6944 The documentation has been updated so as to reflect the last
updates of the Erlang shell as well as the minor
modifications of the control sequence p of the io_lib module.
Superfluous empty lines have been removed from code examples
and from Erlang shell examples.
OTP-7009 tuple_size/1 and byte_size/1 have been substituted for
size/1.
OTP-7095 The coverage analysis tool cover now handles the
short-circuit Boolean expressions andalso/2 and orelse/2
properly.