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2017-09-01Merge branch 'sverker/20/binary_to_atom-utf8-crash/ERL-474/OTP-14590' into maintSverker Eriksson
* sverker/20/binary_to_atom-utf8-crash/ERL-474/OTP-14590: erts: Fix crash in binary_to_atom/term for invalid utf8
2017-08-30Merge tag 'OTP-20.0' into sverker/20/binary_to_atom-utf8-crash/ERL-474/OTP-14590Sverker Eriksson
2017-08-30Merge tag 'OTP-19.0' into sverker/19/binary_to_atom-utf8-crash/ERL-474/OTP-14590Sverker Eriksson
2017-08-30erts: Fix crash in binary_to_atom/term for invalid utf8Sverker Eriksson
such as a sub-binary, of a correct utf8 string, that ends in the middle of a character.
2017-08-30erts: Fix memory leak when sending to terminating portSverker Eriksson
Error: Leak_DefinitelyLost erts_alloc:230 (-> 0x52E54D) [erl_alloc.h] port_task_alloc:154 (-> 0x52F3CA) [erl_port_task.c] erts_port_task_alloc_p2p_sig_data:212 (-> 0x52F5D3) [erl_port_task.c] erts_port_output:2147 (-> 0x4F6057) [io.c] erts_port_command:4126 (-> 0x4FA10E) [io.c] do_send:2200 (-> 0x4E4C64) [bif.c] erl_send:2494 (-> 0x4E5E09) [bif.c] process_main:1730 (-> 0x43ADA5) [beam_emu.c]
2017-08-28erts: Fix harmless use of uninitialised valueSverker Eriksson
Conditional jump or move depends on uninitialised value(s): erts_msgq_update_internal_pointers:487 (-> 0x5A7AF9) [erl_message.h] erts_msgq_replace_msg_ref:496 (-> 0x5A7B4C) [erl_message.h] move_msgq_to_heap:2487 (-> 0x5AED4F) [erl_gc.c] minor_collection:1380 (-> 0x5AB3F4) [erl_gc.c]
2017-08-25Merge branch 'rickard/btm-auto-cleanup-bug/OTP-14554' into maint-20Erlang/OTP
* rickard/btm-auto-cleanup-bug/OTP-14554: Fix BIF timer race between timeout and auto cleanup
2017-08-25Merge branch 'rickard/timer-sid-bug/OTP-14548' into maint-20Erlang/OTP
* rickard/timer-sid-bug/OTP-14548: Fix scheduler id field in timers # Conflicts: # erts/emulator/beam/erl_hl_timer.c
2017-08-24Merge branch 'rickard/btm-auto-cleanup-bug/OTP-14554' into maintRickard Green
* rickard/btm-auto-cleanup-bug/OTP-14554: Fix BIF timer race between timeout and auto cleanup
2017-08-24Merge branch 'rickard/timer-sid-bug/OTP-14548' into maintRickard Green
* rickard/timer-sid-bug/OTP-14548: Fix scheduler id field in timers Conflicts: erts/emulator/beam/erl_hl_timer.c
2017-08-24Merge branch 'maint-20' into maintRaimo Niskanen
* maint-20: Updated OTP version Prepare release Accept non-binary options as socket-options Bump version Fix broken handling of default values in extensions for PER compiler: Fix live regs update on allocate in validator Take fail labels into account when determining liveness in block ops Check for overflow when appending binaries, and error out with system_limit
2017-08-23Fix BIF timer race between timeout and auto cleanupRickard Green
2017-08-23Fix scheduler id field in timersRickard Green
2017-08-23Merge branch 'rickard/unicode-display_string/OTP-14545' into maintRickard Green
* rickard/unicode-display_string/OTP-14545: Unicode support for erlang:display_string/1
2017-08-23Unicode support for erlang:display_string/1Rickard Green
2017-08-23Merge branch 'sverker/halt-unicode-slogan/OTP-14553' into maintSverker Eriksson
* sverker/halt-unicode-slogan/OTP-14553: erts: Allow any unicode string as crash dump slogan erts: Generate crash_dump slogan string as UTF8 erts: Refactor erts_unicode_list_to_buf
2017-08-23erts: Allow any unicode string as crash dump sloganSverker Eriksson
i.e the first argument to erlang:halt
2017-08-23Merge branch 'john/erts/fix-binary-append-syslimit/OTP-14524' into maint-20Erlang/OTP
* john/erts/fix-binary-append-syslimit/OTP-14524: Check for overflow when appending binaries, and error out with system_limit # Conflicts: # erts/emulator/test/bs_construct_SUITE.erl
2017-08-16Merge branch 'lukas/erts/fix_dirty_trace_message_flush/OTP-14538' into maintLukas Larsson
* lukas/erts/fix_dirty_trace_message_flush/OTP-14538: erts: Must have main lock when flushing trace messages
2017-08-01Check for overflow when appending binaries, and error out with system_limitJohn Högberg
This fixes the following bug: A = <<0:((1 bsl 32)-8)>>, B = <<2, 3>>. B =:= <<A/binary,1,B/binary>>. %% Evaluated to true...
2017-07-26Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maint-20Erlang/OTP
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2017-07-25Merge branch 'sverker/enif_whereis-bug/OTP-14523' into maintSverker Eriksson
* sverker/enif_whereis-bug: erts: Fix bug in enif_whereis_pid/port
2017-07-25Merge branch 'john/erts/use-lock-flags-in-lc' into maintJohn Högberg
2017-07-25Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maint-19Erlang/OTP
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2017-07-25Merge branch 'sverker/prealloc-race-bug/OTP-14491' into maint-19Erlang/OTP
* sverker/prealloc-race-bug/OTP-14491: erts: Fix bug in quick alloc
2017-07-13Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maintSverker Eriksson
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2017-07-12erts: Fix bug in bxor of a big negative numberSverker Eriksson
Wrong result for (X bsl WS) bxor Y. where X is any negative integer Y is any integer that does not require more words than X WS is erlang:system_info(wordsize) or larger Fix: The subtraction of 1 (for 2-complement conversion) must be carried along all the way to the last words.
2017-07-11erts: Fix bug in enif_whereis_pid/portSverker Eriksson
that could cause heap corruption if whereis lookup conflicts with other register updater AND other thread sends on-heap message while main lock is released. Also improved enif_whereis from dirty nifs by passing c_p as NULL.
2017-07-11Use erl_lock_flags in lock checkingJohn Högberg
2017-07-07Add a proper type for lock optionsJohn Högberg
2017-07-06erts: Generate crash_dump slogan string as UTF8Sverker Eriksson
the same as atoms.
2017-07-06Merge branch 'john/erts/runtime-lcnt' into maintJohn Högberg
* john/erts/runtime-lcnt: Document rt_mask and add warnings about copy_save Add an emulator test suite for lock counting Break erts_debug:lock_counters/1 into separate BIFs Allow toggling lock counting at runtime Move lock flags to a common header Enable register_SUITE for lcnt builds Enable lcnt smoke test on all builds that have lcnt enabled Make lock counter info independent of the locks being counted OTP-14412 OTP-13170 OTP-14413
2017-07-06Break erts_debug:lock_counters/1 into separate BIFsJohn Högberg
2017-07-06Allow toggling lock counting at runtimeJohn Högberg
The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and all categories are still enabled by default, but the actual counting can be toggled at will. OTP-13170
2017-07-06Move lock flags to a common headerJohn Högberg
2017-07-06Merge branch 'sverker/prealloc-race-bug/maint' into maintSverker Eriksson
* sverker/prealloc-race-bug/maint: erts: Increase pre-allocated blocks #ifdef DEBUG
2017-07-06erts: Refactor erts_unicode_list_to_bufSverker Eriksson
to get bytes written when truncated.
2017-07-04Merge branch 'maint-20' into maintJohn Högberg
* maint-20: Updated OTP version Update release notes Update version numbers erts: Fix bug in quick alloc Fix old length usage in string stdlib: Fix bug in proc_lib Support arbitrary crash report in proc_lib.
2017-06-30erts: Increase pre-allocated blocks #ifdef DEBUGSverker Eriksson
Choose a "lagom" low value to provoke both fallback on erts_alloc AND thread racing in lockless deallocation queue.
2017-06-30Merge branch 'sverker/prealloc-race-bug/OTP-14491' into maint-20Erlang/OTP
* sverker/prealloc-race-bug/OTP-14491: erts: Fix bug in quick alloc
2017-06-30Merge branch 'rickard/statistics/OTP-14484' into maint-20Erlang/OTP
* rickard/statistics/OTP-14484: Fix statistics(wall_clock) and statistics(runtime) implementation
2017-06-30Merge branch 'lukas/erts/fix_outputv_port_task_cleanup/ERL-428/OTP-14481' ↵Erlang/OTP
into maint-20 * lukas/erts/fix_outputv_port_task_cleanup/ERL-428/OTP-14481: fixup! erts: Cleanup dropped port tasks correctly erts: Add tests to detect port close race erts: Cleanup dropped port tasks correctly
2017-06-30erts: Fix bug in quick allocSverker Eriksson
The effect of the race is that a pre-allocated memory block is inserted last without updating tail.data.last, which will cause all subsequent insertions to also fail to update tail.data.last. Hence all pre-allocation for this quick alloc instance is leaked for this thread and will fallback on erts_alloc.
2017-06-29Merge branch 'sverker/erts/apply-badarg/ERL-432/OTP-14490' into maintSverker Eriksson
* sverker/erts/apply-badarg/ERL-432/OTP-14490: erts: Make apply throw 'badarg' if Args is not a list
2017-06-28Merge branch 'bjorn/erts/fix-gen-dest' into maintBjörn Gustavsson
* bjorn/erts/fix-gen-dest: Eliminate potential unsafe use of general destination
2017-06-27erts: Make apply throw 'badarg' if Args is not a listSverker Eriksson
instead of a strange 'undef' exception.
2017-06-27Merge branch 'maint-19' into maintJohn Högberg
* maint-19: Updated OTP version Update release notes Update version numbers Fix statistics(wall_clock) and statistics(runtime) implementation fixup! erts: Cleanup dropped port tasks correctly erts: Add tests to detect port close race Add a testcase for OTP-13939/ERL-193 erts: Cleanup dropped port tasks correctly Mark socket disconnected on tcp_send_or_shutdown_error
2017-06-26Merge branch 'rickard/statistics/OTP-14484' into maint-19Erlang/OTP
* rickard/statistics/OTP-14484: Fix statistics(wall_clock) and statistics(runtime) implementation
2017-06-26Merge branch 'lukas/erts/fix_outputv_port_task_cleanup/ERL-428/OTP-14481' ↵Erlang/OTP
into maint-19 * lukas/erts/fix_outputv_port_task_cleanup/ERL-428/OTP-14481: fixup! erts: Cleanup dropped port tasks correctly erts: Add tests to detect port close race erts: Cleanup dropped port tasks correctly
2017-06-26Eliminate potential unsafe use of general destinationBjörn Gustavsson
a3407eaa2104d6 eliminated the -gen_dest flag for macros in ops.tab. It turns out that the new implementation (taking the address of the X or X destination register) is unsafe if the destination is a Y register and there can be a GC. The problem is that the address to the Y register will change if there is a GC. Fortunately, the few instructions in OTP 20 that have a general destinations are safe. The put_list_ssd instruction never does a GC. The bit syntax instructions that may do a GC will always store the result to an X register. To be completely sure, rewrite the destination register from 'd' to 'x' for the bit syntax instructions. That means that a bit syntax instruction with a Y register destionation will abort the loading if it is encountered.
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