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2016-08-29Merge branch 'rickard/fun-purge-bug/OTP-13809' and ↵Rickard Green
'rickard/new-purge-strategy/OTP-13833' into maint * rickard/fun-purge-bug/OTP-13809: Fix purge of code Reclaim literal area after purge has completed Separate literal area from code Conflicts: erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/erl_init.c erts/preloaded/ebin/init.beam
2016-08-29Fix purge of codeRickard Green
Ensure that we cannot get any dangling pointers into code that has been purged. This is done by a two phase purge. At first phase all fun entries pointing into the code to purge are marked for purge. All processes trying to call these funs will be suspended and by this we avoid getting new direct references into the code. When all processes has been checked, these processes are resumed. The new purge strategy now also completely ignore the existence of indirect references to the code (funs). If such exist, they will cause bad fun exceptions to the caller, but will not prevent a soft purge or cause a kill of a process having such live references during a hard purge. This since it is impossible to give any guarantees that no processes in the system have such indirect references. Even when the system is completely clean from such references, new ones can appear via distribution and/or disk.
2016-08-12erts/kernel: Fix code loading deadlock during init:stopLukas Larsson
When init:stop is called it walks the application hierarchy and terminates each process. Some of these processes may do something while terminating and sometimes that something needs to load some new code in order to work. When this happens the code_server could just be in the process of terminating or the erl_prim_loader could be active. In both these cases the request to load the new code would cause a deadlock in the termination of the system. This commit fixes this by init rejecting attempts to load new code when init:stop has been called and fixing a termination race in the code_server. This however means that the process that tried to do something when told to terminate (for instance logging that it is terminating) will crash instead of loading the code.
2016-06-20Update preloaded modulesHenrik Nord
2016-05-25erts: Update preloadedSverker Eriksson
2016-05-10Update preloaded modulesLukas Larsson
2016-05-03Update preloaded modulesBjörn-Egil Dahlberg
2016-04-26Update preloaded init.beamBjörn-Egil Dahlberg
2016-04-15Update preloaded modulesLukas Larsson
2016-03-17Update preloaded modulesBjörn Gustavsson
2016-03-16Update preloaded modulesBjörn Gustavsson
2016-02-17Update preloaded modulesHans Bolinder
2016-02-02Update preloaded modulesLukas Larsson
2016-01-26Update preloaded modulesLukas Larsson
2016-01-13erts: Make erlang:purge_module/1 safeSverker Eriksson
Problem: erlang:purge_module/1 is not safe in the sense that very bad things may happen if the code to be purged is still referred to by live processes. Introduce erts_internal:purge_module which is the same as the old erlang:purge_module BIF (except it returns false if no such old module). Implement erlang:purge_module in Erlang and let it invoke erts_code_purger for safe purging where all clogging processes first are killed.
2015-12-16Update preloaded modulesBjörn Gustavsson
2015-12-16Update preloaded modulesBjörn Gustavsson
2015-12-08Update preloaded modulesBjörn-Egil Dahlberg
2015-11-05Fix crash on init restartLuis Rascao
On load handler process not being launched on a restart, NIF's such as asn1rt_nif require it to be present for correct loading.
2015-05-12Update preloaded modulesRickard Green
2015-05-08Optimized timer implementationRickard Green
2015-03-26Update preloaded modulesHenrik Nord
2015-03-20Merge branch 'rickard/time_api/OTP-11997'Rickard Green
* rickard/time_api/OTP-11997: (22 commits) Update primary bootstrap inets: Suppress deprecated warning on erlang:now/0 inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules inets: Update comments Suppress deprecated warning on erlang:now/0 Use new time API and be back-compatible in inets Remove unused functions and removed redundant test asn1 test SUITE: Eliminate use of now/0 Disable deprecated warning on erlang:now/0 in diameter_lib Use new time API and be back-compatible in ssh Replace all calls to now/0 in CT with new time API functions test_server: Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API otp_SUITE: Warn for calls to erlang:now/0 Replace usage of erlang:now() with usage of new API Multiple timer wheels Erlang based BIF timer implementation for scalability Implement ethread events with timeout ... Conflicts: bootstrap/bin/start.boot bootstrap/bin/start_clean.boot bootstrap/lib/compiler/ebin/beam_asm.beam bootstrap/lib/compiler/ebin/compile.beam bootstrap/lib/kernel/ebin/auth.beam bootstrap/lib/kernel/ebin/dist_util.beam bootstrap/lib/kernel/ebin/global.beam bootstrap/lib/kernel/ebin/hipe_unified_loader.beam bootstrap/lib/kernel/ebin/inet_db.beam bootstrap/lib/kernel/ebin/inet_dns.beam bootstrap/lib/kernel/ebin/inet_res.beam bootstrap/lib/kernel/ebin/os.beam bootstrap/lib/kernel/ebin/pg2.beam bootstrap/lib/stdlib/ebin/dets.beam bootstrap/lib/stdlib/ebin/dets_utils.beam bootstrap/lib/stdlib/ebin/erl_tar.beam bootstrap/lib/stdlib/ebin/escript.beam bootstrap/lib/stdlib/ebin/file_sorter.beam bootstrap/lib/stdlib/ebin/otp_internal.beam bootstrap/lib/stdlib/ebin/qlc.beam bootstrap/lib/stdlib/ebin/random.beam bootstrap/lib/stdlib/ebin/supervisor.beam bootstrap/lib/stdlib/ebin/timer.beam erts/aclocal.m4 erts/emulator/beam/bif.c erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_db_hash.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_thr_progress.c erts/emulator/beam/utils.c erts/emulator/sys/unix/sys.c erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/init.beam erts/preloaded/src/erts_internal.erl lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl lib/diameter/src/base/diameter_lib.erl lib/kernel/src/os.erl lib/ssh/test/ssh_basic_SUITE.erl system/doc/efficiency_guide/advanced.xml
2015-03-20Erlang based BIF timer implementation for scalabilityRickard Green
2015-03-20Introduce a new time APIRickard Green
The old time API is based on erlang:now/0. The major issue with erlang:now/0 is that it was intended to be used for so many unrelated things. This tied these unrelated operations together and unnecessarily caused performance, scalability as well as accuracy, and precision issues for operations that do not need to have such issues. The new API spreads different functionality over multiple functions in order to improve on this. The new API consists of a number of new BIFs: - erlang:convert_time_unit/3 - erlang:monotonic_time/0 - erlang:monotonic_time/1 - erlang:system_time/0 - erlang:system_time/1 - erlang:time_offset/0 - erlang:time_offset/1 - erlang:timestamp/0 - erlang:unique_integer/0 - erlang:unique_integer/1 - os:system_time/0 - os:system_time/1 and a number of extensions of existing BIFs: - erlang:monitor(time_offset, clock_service) - erlang:system_flag(time_offset, finalize) - erlang:system_info(os_monotonic_time_source) - erlang:system_info(time_offset) - erlang:system_info(time_warp_mode) - erlang:system_info(time_correction) - erlang:system_info(start_time) See the "Time and Time Correction in Erlang" chapter of the ERTS User's Guide for more information.
2014-12-09Update preloaded modulesMarcus Arendt
2014-09-12Update preloaded modulesHenrik Nord
2014-06-18Update preloaded modulesMagnus Lidén
2014-04-11The encoding for '-eval Program' should be UTF-8Björn Gustavsson
If file:name_native_encoding() returns 'utf8', any arguments following the -run option are assumed to be encoded in UTF-8. -eval should treat is argument the same way.
2014-04-01Update preloaded modulesBjörn-Egil Dahlberg
2014-02-26Update preloaded and primary bootstrapRickard Green
2013-12-09Update preloaded modulesMagnus Lidén
2013-12-09Update preloaded modulesMagnus Lidén
2013-12-06Update preloaded modulesMagnus Lidén
2013-09-13Update preloaded modulesMagnus Lidén
2013-06-12Update preloaded modulesBjörn-Egil Dahlberg
2013-05-28Update preloaded init.beamSiri Hansen
2013-05-06Update preloaded filesHans Bolinder
2013-04-10Merge branch 'maint'Fredrik Gustafsson
Conflicts: erts/preloaded/ebin/erl_prim_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/init.beam erts/preloaded/ebin/otp_ring0.beam erts/preloaded/ebin/prim_file.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/ebin/prim_zip.beam erts/preloaded/ebin/zlib.beam
2013-04-10Update preloaded modulesFredrik Gustafsson
2013-04-04Update preloaded modulesFredrik Gustafsson
2013-04-04Update preloaded modulesFredrik Gustafsson
2013-02-22Update preloaded modulesBjörn-Egil Dahlberg
2013-01-25Update preloaded modulesSiri Hansen
2013-01-25Update preloaded init.beamSiri Hansen
2012-12-17Update preloaded modulesBjörn-Egil Dahlberg
2012-12-07Merge branch 'rickard/port-optimizations/OTP-10336' into ↵Rickard Green
rickard/r16/port-optimizations/OTP-10336 * rickard/port-optimizations/OTP-10336: Change annotate level for emacs-22 in cerl Update etp-commands Add documentation on communication in Erlang Add support for busy port message queue Add driver callback epilogue Implement true asynchronous signaling between processes and ports Add erl_drv_[send|output]_term Move busy port flag Use rwlock for driver list Optimize management of port tasks Improve configuration of process and port tables Remove R9 compatibility features Use ptab functionality also for ports Prepare for use of ptab functionality also for ports Atomic port state Generalize process table implementation Implement functionality for delaying thread progress from unmanaged threads Conflicts: erts/doc/src/erl_driver.xml erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_bp.c erts/emulator/beam/beam_emu.c erts/emulator/beam/bif.c erts/emulator/beam/copy.c erts/emulator/beam/erl_alloc.c erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_bif_port.c erts/emulator/beam/erl_bif_trace.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_message.c erts/emulator/beam/erl_port_task.c erts/emulator/beam/erl_process.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_process_lock.c erts/emulator/beam/erl_trace.c erts/emulator/beam/export.h erts/emulator/beam/global.h erts/emulator/beam/io.c erts/emulator/sys/unix/sys.c erts/emulator/sys/vxworks/sys.c erts/emulator/test/port_SUITE.erl erts/etc/unix/cerl.src erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/src/prim_inet.erl lib/hipe/cerl/erl_bif_types.erl lib/kernel/doc/src/inet.xml lib/kernel/src/inet.erl
2012-08-23Merge branch 'maint'Sverker Eriksson
Conflicts: erts/preloaded/ebin/init.beam
2012-08-21Fix init:restart with hipelibsSverker Eriksson
This is a workaround for init:restart. The root problem is that delete/purge_module does not clean up internal hipe bookkeeping (hipe_mfa_info's) properly. Symptom: Execution of deallocated beam code.
2012-08-20Merge branch 'maint'Patrik Nyblom
Conflicts: erts/doc/src/erlang.xml erts/preloaded/ebin/init.beam lib/kernel/doc/src/os.xml lib/stdlib/test/filename_SUITE.erl
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