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We used to set last_op_next and last_op to NULL just in case.
Setting last_op_next to causes a rescan of the instructions
to find the last instruction in the chain, so we would want
to avoid that unless really necessary.
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The transformation on the following line will do the job.
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=== OTP-18.3.1 ===
Changed Applications:
- erts-7.3.1
- inets-6.2.1
- mnesia-4.13.4
Unchanged Applications:
- asn1-4.0.2
- common_test-1.12
- compiler-6.0.3
- cosEvent-2.2
- cosEventDomain-1.2
- cosFileTransfer-1.2
- cosNotification-1.2.1
- cosProperty-1.2
- cosTime-1.2.1
- cosTransactions-1.3.1
- crypto-3.6.3
- debugger-4.1.2
- dialyzer-2.9
- diameter-1.11.2
- edoc-0.7.18
- eldap-1.2.1
- erl_docgen-0.4.2
- erl_interface-3.8.2
- et-1.5.1
- eunit-2.2.13
- gs-1.6
- hipe-3.15
- ic-4.4
- jinterface-1.6.1
- kernel-4.2
- megaco-3.18
- observer-2.1.2
- odbc-2.11.1
- orber-3.8.1
- os_mon-2.4
- ose-1.1
- otp_mibs-1.1
- parsetools-2.1.1
- percept-0.8.11
- public_key-1.1.1
- reltool-0.7
- runtime_tools-1.9.3
- sasl-2.7
- snmp-5.2.2
- ssh-4.2.2
- ssl-7.3
- stdlib-2.8
- syntax_tools-1.7
- test_server-3.10
- tools-2.8.3
- typer-0.9.10
- webtool-0.9.1
- wx-1.6.1
- xmerl-1.3.10
Conflicts:
OTP_VERSION
erts/emulator/test/save_calls_SUITE.erl
erts/vsn.mk
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* bjorn/erts/clang-opt:
Fix unsafe transformation of apply/3 with fixed arguments
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* egil/erts/fix-flatmap-get/OTP-13459:
erts: Don't search for non-existing Map keys twice
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* sverker/erts/trap_exit-race/OTP-13452:
erts: Fix race for process_flag(trap_exit,true)
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* rickard/proc-free-fix/OTP-13446:
Fix bad refc management of process struct
# Conflicts:
# erts/emulator/beam/erl_process.c
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* rickard/port-sig-dropped-fix/OTP-13424:
Fix implementation of dropped signal to port
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* rickard/ethr-event-futex-wait-timeout/OTP-13420:
Fix premature timeouts for ethread events on Linux
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* rickard/last_calls/OTP-13418:
Unbreak process_info(Pid,last_calls)
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and a concurrent exit signal.
We now actually guarantee that the process will not die
from exit signal *after* the call to process_flag(trap_exit,true)
has returned.
The race is narrow and probably quite hard to observe even if you
manage to provoke it. Has only been confirmed with the help of
return trace and a sleep in send_exit_signal().
Solution:
Seize status lock to prevent send_exit_signal() from reading
an old status (without TRAP_EXIT) and then writing PENDING_EXIT
after TRAP_EXIT has been set by process_flag_2().
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* For maps:get/2,3 and maps:find/2, searching for an immediate key, e.g. an atom,
the search was performed twice if the key did not exist in the map.
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* rickard/proc-free-fix/OTP-13446:
Fix bad refc management of process struct
Conflicts:
erts/emulator/beam/erl_process.c
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62473daf introduced an unsafe optimization in the loader.
See the comments in the test case for an explanation of
the problem.
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Bug introduced on master in a31eab5469b7740d.
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* lukas/erts/etp-bigendian-pid-fix:
erts: Fix etp pid print on big endian
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* lukas/erts/enif_trace_functions/OTP-13442:
erts: Fix bug in enif_send
erts: Fix windows nif port tests
erts: Fix bug in enif_term_to_binary
erts: Remove printout when dec_term fails in DEBUG
erts: Polish erl_nif docs
erts: Improve enif_binary_to_term
erts: Add enif_port_command
erts: Add enif_term_to_binary and enif_binary_to_term
erts: Add enif_is_process/port_alive
erts: Add enif_cpu/now_time and enif_make_unique_integer
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Let cache_env() set env->heap_frag to same as MBUF(p)
as it is in any other case.
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Wait until after dec_term and factory_close to do cache_env(),
otherwise we will cache the wrong state.
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* Accept a raw data buffer instead of ErlNifBinary
* Accept option ERL_NIF_BIN2TERM_SAFE
* Return number of read bytes
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* rickard/improve-psd/OTP-13428:
Improve process/port specific data management
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* rickard/delayed-gc-fix:
Allow delayed gc while scheduled out
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* rickard/port-sig-dropped-fix/OTP-13424:
Fix implementation of dropped signal to port
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* lukas/erts/inline_tagvaldef/OTP-13440:
erts: inline tag_val_def
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The tag_val_def function was called and multiple switch statements
had to be traversed in term.c, and then a big switch in the calling
code to branch on the term types. By inlining the switches are
merged by the compiler and a lot fewer branches have to be taken.
Benchmarks show that this increases performance of enc_term by as
much as 10%.
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* lukas/erts/fix_pthread_setname_osx/OTP-13439:
erts: Fix pthread_setname_np warning on osx
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* lukas/erts/low_write_freq_darwin/OTP-12345:
erts: Fix LOW_WRITE section for non llvm os x compilation
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* bjorn/optimize-start-up/OTP-13368:
Update preloaded modules
init: Load modules in parallel using the new loader BIFs
systools_make: Add commonly used modules to mandatory_modules/0
compile: Pre-load compiler modules when invoked from 'erlc'
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* bjorn/macosx-configure:
configure: Remove obsolete --enable-darwin-* options
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* egil/fix-ttsl_drv-log:
Fix ttsl_drv logging without TERMCAP
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* lukas/erts/scheduler_SUITE_compile_win/OTP-13428:
Fix dirty scheduler tc on windows
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* lukas/erts/fix-vsyslog-freebsd/OTP-13427:
erts: Fix run_erl syslog prototypes for freebsd
Conflicts:
erts/etc/unix/run_erl.c
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* lukas/erts/fix_scheduler_suspend/ERL-94/PR-978/OTP-13425:
erts: Fix install of suspend handler
Conflicts:
erts/emulator/sys/unix/erl_unix_sys.h
erts/emulator/sys/unix/sys.c
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Remove the options:
--enable-darwin-universal
--enable-darwin-64bit
The --enable-darwin-universal option turns on universal binaries
(Intel/PPC). It does not work on modern releases of OS X, and
OTP 19 will most not likely build on an OS X release that still
supports universal builds.
The --enable-darwin-64bit option is not needed, because 64-bit builds
are default on modern OS X releases. There is also the generic
--enable-m64-build option.
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