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2010-08-24Merge branch 'rickard/nptl-configure/OTP-8774' into devRickard Green
* rickard/nptl-configure/OTP-8774: Removed unused define Fix propagation of nptl info
2010-08-24Merge branch 'rickard/erts-poll-race/OTP-8773' into devRickard Green
* rickard/erts-poll-race/OTP-8773: Fix race in erts_poll()
2010-08-20Fix race in erts_poll()Rickard Green
A race condition in erts_poll() could cause delay of poll for I/O.
2010-08-20Merge branch 'ms/suppress-epmd-startup-message' into devBjörn Gustavsson
* ms/suppress-epmd-startup-message: epmd: suppress startup message OTP-8775
2010-08-20Merge branch 'bjorn/solaris-fp-exception' into devBjörn Gustavsson
* bjorn/solaris-fp-exception: Solaris/x86: Handle floating point exceptions properly in driver threads
2010-08-20Merge branch 'bjorn/remove-elib_malloc/OTP-8764' into devBjörn Gustavsson
* bjorn/remove-elib_malloc/OTP-8764: erts: Remove broken elib_malloc erts: Remove the unused mem_drv driver erts: Remove stray pre-ISO-C compatibility macros erts: Remove unused decl.h
2010-08-19Removed unused defineRickard Green
2010-08-19Fix propagation of nptl infoRickard Green
2010-08-19Merge branch 'rickard/fix-faulty-assert/OTP-8759' into devRickard Green
* rickard/fix-faulty-assert/OTP-8759: Fix faulty no_empty_run_queues assertion
2010-08-19Merge branch 'hb/type_reference/OTP-8733' into devHans Bolinder
* hb/type_reference/OTP-8733: reference() substituted for ref() in docs
2010-08-17Solaris/x86: Handle floating point exceptions properly in driver threadsBjörn Gustavsson
On Solaris/x86, the floating point exceptions bits seems to be propagated to child threads, so if scheduler threads use floating points exceptions, also driver threads will have floating points exception enabled. The problem is that erts_thread_init_float() has not been called for driver threads, and because of that matherr() will crash when called. Fix matherr() so that it will work even if erts_thread_init_float() has not been called. This fix was suggested by Mikael Pettersson.
2010-08-17erts: Remove broken elib_mallocBjörn Gustavsson
elib_malloc is an alternate memory allocator that is no longer possible to build.
2010-08-17erts: Remove the unused mem_drv driverBjörn Gustavsson
The mem_drv driver was only useful when elib_malloc was active.
2010-08-17erts: Remove stray pre-ISO-C compatibility macrosBjörn Gustavsson
A long time ago, the Erlang run-time system could be build with pre-ANSI/ISO-C (K&R) C compilers, but that is no longer possible. Remove the remaining uses of the compatibility macros that made it possible that possible.
2010-08-14erts: Remove unused decl.hBjörn Gustavsson
The header file erts/emulator/beam/decl.h is no longer used.
2010-08-13fix hipe_bifs_alloc_data_2 to avoid "Yikes!" warningMikael Pettersson
It's been reported that HiPE-enabled Erlang VMs running on BSD systems sometimes generate messages like Yikes! erts_alloc() returned misaligned address 0x8016a512c These originate from hipe_bif0.c:hipe_bifs_alloc_data_2(). A native code module has an associated data area of some size and alignment. In the case where the size is zero, the alignment is irrelevant, but the allocation BIF checks it anyway. The warning then triggers on systems where malloc(0) returns blocks with less alignment than we (erroneously) expected. The fix is to simply skip the allocation in this case and return NULL. The loader won't actually use the address in this case so that's safe. This is also an optimization since it avoids allocating memory that cannot be used, and it avoids fragmenting the system heap with useless tiny blocks. A second problem is that the warning message failed to identify its origin. Fixed by prefixing the message by the BIF's name rather than the silly Yikes! string. Tested and confirmed to solve the original reporter's problem.
2010-08-12Merge branch 'bjorn/remove-obsolete-driver-support/OTP-8758' into devBjörn Gustavsson
* bjorn/remove-obsolete-driver-support/OTP-8758: Remove obsolete/driver.h and the associated functionality
2010-08-11Fix faulty no_empty_run_queues assertionRickard Green
For a short period of time no_empty_run_queues may have been increased twice for a specific run queue. Two assertions did not take this into account.
2010-08-11Remove obsolete/driver.h and the associated functionalityBjörn Gustavsson
The obsolete/driver.h header file has been obsolete since R8B. Remove that file, along with obsolete thread APIs for drivers in the emulator and the test cases.
2010-08-10Merge branch 'rickard/trailing-data-alignment/OTP-8754' into devRickard Green
* rickard/trailing-data-alignment/OTP-8754: Align trailing message data for all types of structures
2010-08-10Merge branch 'rickard/ethread-rewrite/OTP-8544' into devRickard Green
* rickard/ethread-rewrite/OTP-8544: Rewrite ethread library
2010-08-10Rewrite ethread libraryRickard Green
Large parts of the ethread library have been rewritten. The ethread library is an Erlang runtime system internal, portable thread library used by the runtime system itself. Most notable improvement is a reader optimized rwlock implementation which dramatically improve the performance of read-lock/read-unlock operations on multi processor systems by avoiding ping-ponging of the rwlock cache lines. The reader optimized rwlock implementation is used by miscellaneous rwlocks in the runtime system that are known to be read-locked frequently, and can be enabled on ETS tables by passing the `{read_concurrency, true}' option upon table creation. See the documentation of `ets:new/2' for more information. The ethread library can now also use the libatomic_ops library for atomic memory accesses. This makes it possible for the Erlang runtime system to utilize optimized atomic operations on more platforms than before. Use the `--with-libatomic_ops=PATH' configure command line argument when specifying where the libatomic_ops installation is located. The libatomic_ops library can be downloaded from: http://www.hpl.hp.com/research/linux/atomic_ops/ The changed API of the ethread library has also caused modifications in the Erlang runtime system. Preparations for the to come "delayed deallocation" feature has also been done since it depends on the ethread library. Note: When building for x86, the ethread library will now use instructions that first appeared on the pentium 4 processor. If you want the runtime system to be compatible with older processors (back to 486) you need to pass the `--enable-ethread-pre-pentium4-compatibility' configure command line argument when configuring the system.
2010-08-07Align trailing message data for all types of structuresRickard Green
Alignment of trailing data in messages has been adjusted. This in order to be able to pass data of any type as trailing data in the future.
2010-08-04epmd: suppress startup messageMichael Santos
Running transient distributed Erlang nodes can generate a large number of informational messages to syslog. Modify epmd to log the startup message only when passed the debug switch. Reported-By: Sergey Samokhin
2010-07-30Fix libm linking with --as-needed flagBjörn-Egil Dahlberg
When building with "--as-needed" linker flags on Linux the build will fail. This has now been fixed.
2010-07-22Mending halfword heap emulatorSverker Eriksson
2010-07-20Merge branch 'sverker/one_offheap_list/OTP-8737' into devSverker Eriksson
* sverker/one_offheap_list/OTP-8737: One off-heap list, to eliminate two words per ETS object.
2010-07-20One off-heap list, to eliminate two words per ETS object.Sverker Eriksson
Merging the three off-heap lists (binaries, funs and externals) into one list. This reduces memory consumption by two words (pointers) per ETS object.
2010-07-20Merge branch 'sverker/ets_select_hang/OTP-8732' into devSverker Eriksson
* sverker/ets_select_hang/OTP-8732: Fix ets:select hanging on ordered_set with empty list as key.
2010-07-08Merge branch 'sverker/full_INTEGER_EXT/OTP-8540' into devSverker Eriksson
* sverker/full_INTEGER_EXT/OTP-8540: term_to_binary use all 32 bits of INTEGER_EXT
2010-07-08Merge branch 'sverker/driver_int64_bug/OTP-8716' into devSverker Eriksson
* sverker/driver_int64_bug/OTP-8716: Fix bug that caused faulty 64-bit integers from drivers.
2010-07-08nif_SUITE send3 stress testSverker Eriksson
2010-07-08reference() substituted for ref() in docsHans Bolinder
2010-07-07Fix ets:select hanging on ordered_set with empty list as key.Sverker Eriksson
erl_db_tree.c incorrectly used NIL (empty list) as "lastkey" to mark start of the iteration. A real NIL key could then cause a select or match iteration to be restarted over and over again if the last key before a trap happended to be NIL. Changed NIL to THE_NON_VALUE. Should be ok as the initial key value can never be put into any continuation tuple.
2010-07-07Merge branch 'rani/sctp-udp-recv-error' into devRaimo Niskanen
* rani/sctp-udp-recv-error: Fix inet_drv to detect passive mode UDP errors for SCTP builds
2010-07-07Merge branch 'sd/epmd-stop-cli' into devRaimo Niskanen
* sd/epmd-stop-cli: allow epmd -stop name to unregister a client from epmd
2010-07-07Fix inet_drv to detect passive mode UDP errors for SCTP buildsRaimo Niskanen
Debug and patch by Per Hedeland for R13B04 on erlang-patches: Connected UDP (and handling of any other errors in UDP recv()) is broken in passive mode for all SCTP-enabled builds.
2010-07-07allow epmd -stop name to unregister a client from epmdSeven Du
2010-07-07Merge branch 'se/http_response_empty_phrase' into devRaimo Niskanen
* se/http_response_empty_phrase: {packet,http} allow empty response phrase
2010-07-06Documentation clarifications for now/0 and timer:tc/3Raimo Niskanen
2010-07-05term_to_binary use all 32 bits of INTEGER_EXTSverker Eriksson
Earlier, external format INTEGER_EXT was only produced for 28-bit signed integers. Now full 32-bit signed integers are produced as INTEGER_EXT to avoid the more costly SMALL_BIG_EXT format. Both old and new code can read 32-bit INTEGER_EXT. Also fixed integer encoding bugs in erl_interface erl_encode/erl_decode. (Thanks to Alexander Demidenko for reporting)
2010-06-30Fix bug that caused faulty 64-bit integers from drivers.Sverker Eriksson
2010-06-18Update Erlang system version to R14BBjörn-Egil Dahlberg
2010-06-15The R14A releaseOTP_R14AErlang/OTP
Final merge of all unexpected differences from dev to release.
2010-06-14OTP-8710 Fix emulator crash caused by setting CPU topologyRickard Green
A user defined CPU topology set via a call to <seealso marker="erlang#system_flag_cpu_topology">erlang:system_flag(cpu_topology, CPUTopology)</seealso> was not properly verified, and could in worst case cause an emulator crash. The emulator crash could only occur when a user defined CPU topology already existed and was redefined.
2010-06-11Update release notesBjörn Gustavsson
2010-06-11Merge branch 'se/port_SUITE_env' into devErlang/OTP
* se/port_SUITE_env: fix open_port with many unset env vars allow open_port with env vars with trailing '=' on Windows OTP-8701 se/port_SUITE_env open_port/2 with the spawn and spawn_executable options can include an {env,Env} option. In some cases unsetting variables would not work on Unix (typically if more variables were unset than were actually present in the environment).
2010-06-11Merge branch 'peppe/common_test_r14_dev_2' into devErlang/OTP
* peppe/common_test_r14_dev_2: Misc documentation updates Add documentation for run_test program Step vsn for test_server to 3.4 Make {repeat*,N} property in group execute the group N times exactly Fix so that ct_run converts relative diretories in the code path to absolute Fix bug in handling framework:end_tc timeouts Fix bug that prevents the interactive shell mode to start properly Fix failing multiply timetrap test case Minor fixes in code and test suites Add support for executing pre-loaded suites (e.g. modules loaded as binaries) Add test suite for remote loading of binary suites Fix error with {repeat,0} property in groups causing double iterations Add support for config info functions (e.g. init_per_suite/0) Add support for dynamic timetrap handling Have end_per_testcase run even after timetrap_timeout and abort_testcase Flush old DOWN messages in demonitor Add groups in test specifications Add new tests for test case groups and test specifications Improve and fix various test suites Add event_handler_init start flag that can pass init arguments to event handlers ... OTP-8703 peppe/common_test_r14_dev_2
2010-06-10{packet,http} allow empty response phraseSverker Eriksson
Packet type 'http' for erlang:deocode:packet and gen_tcp allow a response line with an empty phrase string, like "HTTP/1.1 200\r\n". Earlier, an empty phrase was only accepted if the status code was followed by space or tab, like "HTTP/1.1 200 \r\n".
2010-06-10fix open_port with many unset env varsSverker Eriksson
The erlang:open_port spawn and spawn_executable directives can include an {env, Env} directive to set up environment variables for the spawned process. Variables can be unset with {"NameOfVariable",false}. A bug in ert/emulator/sys/unix/sys.c could cause unset variables to not be unset. This would typically happen if there where more variables to be unset than there where already set variables in the destination evironment. Fix this problem for unix and add a new regression test for it to the port test suite. Windows does not seem to have the same problem.