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2019-06-27erts: Cleanup start of all erts threads to ABORT when failingLukas Larsson
Before this change erts used to crash dump and then abort, but a crash dump is not really usefull at this point and it caused all sort of lock problems when crash dumping that early in the system boot, so now it is changed to only dump core instead. Also in the process I cleaned up some the code so that it does not to a lot of things that are not needed.
2019-06-27Merge branch 'lukas/erts/dist-optimize-large-data/PR-2291/OTP-15926' into maintLukas Larsson
* lukas/erts/dist-optimize-large-data/PR-2291/OTP-15926: erts: Don't copy binary data from dist data erts: Move copy of payload to receiving process
2019-06-25Merge pull request #2250 from ↵Rickard Green
rickard-green/rickard/re-unicode-validation/OTP-15831/OTP-15836/ERL-876 re unicode validation
2019-06-24Merge branch 'sverker/system_info-procs-bug/ERL-979/OTP-15909' into maintSverker Eriksson
* sverker/system_info-procs-bug/ERL-979/OTP-15909: Fix fatal bug in erts_proc_sig_signal_size
2019-06-24Merge branch 'bjorn/erts/unoptimized-plus' into maintBjörn Gustavsson
* bjorn/erts/unoptimized-plus: Handle addition of bignum + variable in unoptimized code
2019-06-19Fix fatal bug in erts_proc_sig_signal_sizeSverker Eriksson
called by erlang:process_info(memory) erlang:system_info(procs) crash dump break menu Will crash VM if process has a pending monitor DOWN signal in its queue.
2019-06-19erts: Don't copy binary data from dist dataLukas Larsson
It is already a refc, so no need to create a new one.
2019-06-19erts: Move copy of payload to receiving processLukas Larsson
2019-06-18Merge branch 'rickard/re-yield-unicode-validation/OTP-15836/ERL-876' into ↵Rickard Green
rickard/re-unicode-validation/OTP-15831/OTP-15836/ERL-876 * rickard/re-yield-unicode-validation/OTP-15836/ERL-876: Update runtime dependency from stdlib to erts Yield when validating UTF8 for long subject in re:run() Add yield_on_subject_validation() test
2019-06-18Yield when validating UTF8 for long subject in re:run()Rickard Green
2019-06-18Merge branch 'rickard/re-global-unicode-validation/OTP-15831/ERL-876' into ↵Rickard Green
rickard/re-unicode-validation/OTP-15831/OTP-15836/ERL-876 * rickard/re-global-unicode-validation/OTP-15831/ERL-876: Update runtime dependency from stdlib to erts Only validate subject once when global is used in re:run() Add global_unicode_validation() test
2019-06-18Merge branch 'kjell/stdlib/ets_ordered_set_slow_react/OTP-15906' into maintKjell Winblad
* kjell/stdlib/ets_ordered_set_slow_react/OTP-15906: ETS ordered_set: Improvements to the CA tree implementation
2019-06-18ETS ordered_set: Improvements to the CA tree implementationKjell Winblad
This commit only affects the implementation of ETS `ordered_set` tables with the `write_concurrency` option enabled. Such tables are implemented with a data structure that is called the contention adapting search tree (CA tree). This commit introduces the following changes: * This commit causes a join to be triggered in one randomly selected base node in about one of 1000 read unlock calls for base node locks. No such joins happened before this commit. Before this commit, operations that only acquired looks in read-mode never triggered any contention adaptation. Therefore, the CA tree could get stuck in a sub-optimal state in certain scenarios. This could happen, for example, when a CA tree is first populated with parallel inserts (which will cause splits of base nodes) and then only read-only operations are applied to the data structure. Benchmark results from the `ets_SUITE:lookup_catree_par_vs_seq_init_benchmark/0` benchmark function (which is included in this commit) shows that this change can improve the throughput of the CA tree in the scenario described above. * Read-only operations will now also increase values of statistics counters when they detect that they need to wait for other operations. Only write operation changed statistics counters before this commit. This improves the statistics that the adaptation heuristics is based on. * Additionally, this commit adds an upper and lower limit to the contention statistics variables in the base nodes. Such limits did not exist before this commit. This should, for example, make the CA tree more responsive to contention after long periods of low contention.
2019-06-18Merge pull request #2270 from essen/dist-get-stat-real-pend-value/OTP-15905Lukas Larsson
Return real pend value in erlang:dist_get_stat/1
2019-06-17Merge branch 'rickard/dist-exit2/22/OTP-15867' into maint-22Erlang/OTP
* rickard/dist-exit2/22/OTP-15867: Don't disconnect on remote exit/2 with old incarnation as recipient
2019-06-17Merge branch 'john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819' ↵Erlang/OTP
into maint-22 * john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819: erts: Fix buffer overflow in xxx_to_existing_atom
2019-06-17Merge branch 'john/erts/fix-conservative/OTP-15881' into maintJohn Högberg
* john/erts/fix-conservative/OTP-15881: erts: Relax the constraint introduced in OTP-15871
2019-06-17Merge branch 'rickard/dist-exit2/22/OTP-15867' into maintRickard Green
* rickard/dist-exit2/22/OTP-15867: Don't disconnect on remote exit/2 with old incarnation as recipient
2019-06-17Merge branch 'rickard/dist-exit2/21/OTP-15867' into ↵Rickard Green
rickard/dist-exit2/22/OTP-15867 * rickard/dist-exit2/21/OTP-15867: Don't disconnect on remote exit/2 with old incarnation as recipient
2019-06-17Merge branch 'rickard/dist-exit2/20/OTP-15867' into ↵Rickard Green
rickard/dist-exit2/21/OTP-15867 * rickard/dist-exit2/20/OTP-15867: Don't disconnect on remote exit/2 with old incarnation as recipient
2019-06-17Don't disconnect on remote exit/2 with old incarnation as recipientRickard Green
2019-06-16Document extra message element also where trace message format is describedPéter Gömöri
2019-06-13erts: Relax the constraint introduced in OTP-15871John Högberg
2019-06-12Handle addition of bignum + variable in unoptimized codeBjörn Gustavsson
Also handles code compiled by OTP 21 and earlier.
2019-06-12Merge branch ↵Erlang/OTP
'sverker/erts/process-info-reductions-idle-proc/ERL-964/OTP-15865' into maint-22 * sverker/erts/process-info-reductions-idle-proc/ERL-964/OTP-15865: erts: Improve test of process_info(reductions) Revert "erts: Force process_info(reductions) as signal"
2019-06-12Merge branch 'sverker/erts/break-p-segv/ERL-965/OTP-15873' into maint-22Erlang/OTP
* sverker/erts/break-p-segv/ERL-965/OTP-15873: erts: Fix SEGV crash on shell break (p)roc info
2019-06-11Merge branch 'john/erts/fix-bad-get_tuple_element-opt/OTP-15871/ERIERL-374' ↵John Högberg
into maint * john/erts/fix-bad-get_tuple_element-opt/OTP-15871/ERIERL-374: erts: Fix bad loader optimization of get_tuple_element
2019-06-10Merge branch ↵Sverker Eriksson
'sverker/erts/process-info-reductions-idle-proc/ERL-964/OTP-15865' into maint * sverker/erts/process-info-reductions-idle-proc/ERL-964/OTP-15865: erts: Improve test of process_info(reductions) Revert "erts: Force process_info(reductions) as signal"
2019-06-10Merge branch 'sverker/erts/break-p-segv/ERL-965/OTP-15873' into maintSverker Eriksson
* sverker/erts/break-p-segv/ERL-965/OTP-15873: erts: Fix SEGV crash on shell break (p)roc info
2019-06-10erts: Fix bad loader optimization of get_tuple_elementJohn Högberg
The following sequence would be wrongly optimized into a i_get_tuple_element2 instruction, reading an element from the wrong tuple: {get_tuple_element,{x,0},1,{x,0}}. {get_tuple_element,{x,0},2,{x,1}}.
2019-06-04erts: Fix SEGV crash on shell break (p)roc infoSverker Eriksson
esdp==NULL if run by non scheduler thread.
2019-06-04Revert "erts: Force process_info(reductions) as signal"Sverker Eriksson
This reverts commit 70dbf671a8196110d2aee2e7507afc2c2c75183f. As the comment of 70dbf671a8 itself indicates, that "fix" is not really necessary. It has, however, the bad effect of always consuming reductions of the process you want to know reduction from, that is you can't meassure reduction count without affecting it.
2019-06-03Return real pend value in erlang:dist_get_stat/1Loïc Hoguin
Only the dist_util code is using this function and it already is compatible with a non-boolean value.
2019-05-29Merge branch 'sverker/seq-trace-label-old-heap-bug/ERL-700/OTP-15849' into maintSverker Eriksson
* sverker/seq-trace-label-old-heap-bug/ERL-700/OTP-15849: erts: Fix faulty spec for seq_trace:set_token/2 erts: Fix seq_trace:print/2 for arbitrary labels erts: Fix bug in seq_trace:set_token(label,_)
2019-05-29Merge branch 'bjorn/erts/fix-wrong-class/ERIERL-367/OTP-15834' into maint-22Erlang/OTP
* bjorn/erts/fix-wrong-class/ERIERL-367/OTP-15834: Fix sticky class in exception
2019-05-28erts: Fix seq_trace:print/2 for arbitrary labelsSverker Eriksson
Would raise badarg if Label was not atom or small integer.
2019-05-28erts: Fix bug in seq_trace:set_token(label,_)Sverker Eriksson
If internal seq-trace tuple is on old heap an incorrect ref from old to new heap was made.
2019-05-28Add missing attribute to debug variableMichał Muskała
Without this I wasn't able to compile the debug emulator, the compilation would fail with "section attribute is specified on redeclared variable" errors.
2019-05-24Merge branch 'bjorn/erts/fix-wrong-class/ERIERL-367/OTP-15834' into maintBjörn Gustavsson
* bjorn/erts/fix-wrong-class/ERIERL-367/OTP-15834: Fix sticky class in exception
2019-05-24Only validate subject once when global is used in re:run()Rickard Green
2019-05-23Fix sticky class in exceptionBjörn Gustavsson
When catching an exception re-throwing with a changed class, the class could be changed to the original class if the exception got caught and rethrown in (for example) an after block: sticky_class() -> try try throw(reason) catch throw:Reason:Stack -> erlang:raise(error, Reason, Stack) end after ok end.
2019-05-14Merge branch 'john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819' ↵John Högberg
into maint * john/erts/fix-xxx_to_existing_atom-overflow/ERL-944/OTP-15819: erts: Fix buffer overflow in xxx_to_existing_atom
2019-05-13erts: Fix buffer overflow in xxx_to_existing_atomJohn Högberg
2019-05-10Prepare releaseErlang/OTP
2019-05-10Eliminate process yield after each call to length/1Björn Gustavsson
After calculating the length of a list, length/1 would accidentally bump all remaining reductions, forcing the process to yield. Correct the calculation.
2019-05-06Merge branch 'sverker/process_info-reductions-fix/OTP-15793' into maint-21Erlang/OTP
* sverker/process_info-reductions-fix/OTP-15793: erts: Force process_info(reductions) as signal erts: Fix another bug in process_info(reductions)
2019-05-06Merge branch 'maint'Sverker Eriksson
2019-05-06Merge branch 'sverker/process_info-reductions-fix/OTP-15793' into maintSverker Eriksson
* sverker/process_info-reductions-fix/OTP-15793: erts: Force process_info(reductions) as signal erts: Fix another bug in process_info(reductions)
2019-05-03erts: Force process_info(reductions) as signalSverker Eriksson
Not 100% sure this is needed to get correct reductions as the direct query is not done if process is RUNNING anyway.
2019-05-03Merge branch 'lukas/erts/distr-frag-fixes'Lukas Larsson
* lukas/erts/distr-frag-fixes: erts: Add documentation for distribution fragments
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