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2019-06-24Merge branch 'maint'Björn Gustavsson
* maint: Handle addition of bignum + variable in unoptimized code
2019-06-24Merge branch 'bjorn/erts/unoptimized-plus' into maintBjörn Gustavsson
* bjorn/erts/unoptimized-plus: Handle addition of bignum + variable in unoptimized code
2019-06-19Merge branch 'maint'Sverker Eriksson
2019-06-19Merge branch 'sverker/hipe-x86-flush-icache' into maintSverker Eriksson
2019-06-19erts: Call __builtin___clear_cache for hipe x86 codeSverker Eriksson
Seems the right thing to do as the compiled code is not necessarily executed by a single CPU thread. Only warning if old gcc and will work as good/bad as it did before.
2019-06-19Merge branch 'maint'Sverker Eriksson
2019-06-19Merge branch 'sverker/fix-hipe-arm-old-gcc-error' into maintSverker Eriksson
2019-06-19Merge pull request #2110 from NattyNarwhal/aix-fixes/OTP-15866Lukas Larsson
Wake AIX up from coma
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 branch 'maint'Lukas Larsson
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
2019-06-18Merge branch 'maint'Lukas Larsson
2019-06-18Merge pull request #2272 from ↵Lukas Larsson
garazdawi/lukas/erts/fix_active_n_close_win32/ERL-960/OTP-15901 Fix {active,N} close race condition on windows
2019-06-17Merge branch 'maint'John Högberg
* maint: erts: Relax the constraint introduced in OTP-15871
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 'maint'Rickard Green
* maint: Don't disconnect on remote exit/2 with old incarnation as recipient
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 'bjorn/better-fun-info/OTP-15837'Björn Gustavsson
* bjorn/better-fun-info/OTP-15837: Create a shared wrapper function for all occurrences of 'fun F/A' Support sharing of fun entries in the runtime system erl_fun.c: Remove unused struct definition hipe: Use the new index when translating funs Stop supporting decoding of old funs in the external term format genop.tab: Insert an "OTP 23" comment for clarity
2019-06-17Merge branch 'maint'Ingela Anderton Andin
2019-06-17Merge branch 'ingela/raimo/udp-send-TOS/ERIERL-294/OTP-15747' into ↵Ingela Anderton Andin
ingela/merge-294 * ingela/raimo/udp-send-TOS/ERIERL-294/OTP-15747: Introduce udp send ancillary data argument down to inet_drv Fix old warnings
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
2019-06-17Introduce udp send ancillary data argument down to inet_drvRaimo Niskanen
2019-06-17Merge branch 'maint'Lukas Larsson
2019-06-16Document extra message element also where trace message format is describedPéter Gömöri
2019-06-14Support sharing of fun entries in the runtime systemBjörn Gustavsson
Before OTP 23, there had to be a one-to-one correspodence between `make_fun2` instructions and fun entries. In the OTP 23 runtime system, start keying the fun entries with the explicit ("new") index included in the fun entry. That will allow multiple `make_fun2` instructions to refer to the same entry in the fun table. This change is safe for code compiled by OTP R15B or later, because the old and new indices are identical. The loader will refuse to load code where the old and new indices are not equal unless the code is known to be compiled with an OTP 23 compiler.
2019-06-14erl_fun.c: Remove unused struct definitionBjörn Gustavsson
2019-06-14Stop supporting decoding of old funs in the external term formatBjörn Gustavsson
The new external format for funs (NEW_FUN_EXT) was introduced in OTP R8 along with the `make_fun2` instruction. Therefore, it should be safe to stop decoding the old FUN_EXT tag.
2019-06-14Merge branch 'maint'Micael Karlberg
2019-06-14Merge branch 'bmk/erts/esock/20190528/pattern' into maintMicael Karlberg
2019-06-14[esock|test] Ensure only "real" IPv6 address'es are acceptedMicael Karlberg
When geting the local address, make sure we don't accept the loopback address.
2019-06-14Merge branch 'maint'Micael Karlberg
2019-06-14Merge branch 'bmk/erts/esock/20190529/expose_select_to_the_caller/OTP-15731' ↵Micael Karlberg
into maint
2019-06-13erts: Fix benign preprocessor error from "make depend"Sverker Eriksson
on non-Linux with gcc < 4.3 hipe/hipe_arm.c:65: #error "Don't know how to flush instruction cache" This is benign because "make depend" runs preprocessor on more files than actually needed.
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 'maint'Raimo Niskanen
2019-06-12Merge branch 'raimo/incomplete-socket-close/ERIERL-353/OTP-15370' into maintRaimo Niskanen
* raimo/incomplete-socket-close/ERIERL-353/OTP-15370: Copy linger zero flag from listen socket Test linger zero flag from listen socket
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
2019-06-11ETS 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.
2019-06-11Merge branch 'maint'John Högberg
* maint: erts: Fix bad loader optimization of get_tuple_element beam_ssa_type: Fix incorrect bitstring unit determination
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 'maint'Sverker Eriksson
2019-06-10Merge branch 'sverker/erts/hipe-arm-freebsd-clear-cache/ERL-958' into maintSverker Eriksson
OTP-15874 PR-2266 * sverker/erts/hipe-arm-freebsd-clear-cache/ERL-958: erts: Fix hipe_flush_icache_range for FreeBSD on ARM
2019-06-10erts: Fix hipe_flush_icache_range for FreeBSD on ARMSverker Eriksson
Avoid old Linux specific syscall assembler if we can.
2019-06-10Merge branch 'maint'Sverker Eriksson
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"
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