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2018-07-13Merge branch 'maint-21' into maintRickard Green
* maint-21: Updated OTP version Update release notes Update version numbers Fix trace_info/2 Provide build support for standalone corba repo Fix release notes for OTP-21.0.2 Move to a dirty scheduler even when we have pending system tasks
2018-07-12Merge branch 'john/erts/fix-dirty-reschedule-bug/OTP-15154' into maint-21Erlang/OTP
* john/erts/fix-dirty-reschedule-bug/OTP-15154: Move to a dirty scheduler even when we have pending system tasks
2018-07-12Fix trace_info/2Rickard Green
2018-07-05beam_debug: Fix printing of floating point registersBjörn Gustavsson
2018-06-29Merge branch 'john/erts/merge-OTP-15067' into maint-21Erlang/OTP
* john/erts/merge-OTP-15067: Don't enqueue system tasks if target process is in fail_state Fix erroneous schedule of freed/exiting processes Fix deadlock in run queue evacuation Fix memory leak of processes that died in the run queue
2018-06-27Move to a dirty scheduler even when we have pending system tasksJohn Högberg
When a system task was enqueued on a process between being scheduled and the check altered in this commit, we'd run dirty code on a normal scheduler as the RUNNING_SYS flag wasn't set and we wouldn't migrate back. This change migrates us to a dirty scheduler instead, which will immediately bounce us back to a normal scheduler where RUNNING_SYS will be set appropriately. This is caught fairly reliably by process_SUITE:system_task_failed_enqueue on machines with a lot of cores.
2018-06-25Merge branch 'john/erts/merge-OTP-15067' into maintJohn Högberg
* john/erts/merge-OTP-15067: Don't enqueue system tasks if target process is in fail_state Fix erroneous schedule of freed/exiting processes Fix deadlock in run queue evacuation Fix memory leak of processes that died in the run queue
2018-06-20Merge branch 'lukas/erts/etp-aux-work-fixes' into maintLukas Larsson
* lukas/erts/etp-aux-work-fixes: erts: Update etp-commands with correct aux_flags
2018-06-18erts: Update etp-commands with correct aux_flagsLukas Larsson
2018-06-18Update copyright yearHenrik Nord
2018-06-14Merge branch 'john/erts/fix-process-schedule-after-free/OTP-15067/ERL-573' ↵John Högberg
into john/erts/merge-OTP-15067
2018-06-14Don't enqueue system tasks if target process is in fail_stateJohn Högberg
The fail state wasn't re-checked in the state change loop; only the FREE state was checked. In addition to that, we would leave the task in the queue when bailing out which could lead to a double-free. This commit backports active_sys_enqueue from master to make it easier to merge onwards.
2018-06-14Fix erroneous schedule of freed/exiting processesJohn Högberg
When scheduled out, the process was never checked for the FREE state before rescheduling, which meant that a system task could sneak in and cause a double-free later on.
2018-06-11Merge branch 'sverker/process-info-exiting'Sverker Eriksson
* sverker/process-info-exiting: erts: Fix incoming signal handling for exiting process
2018-06-11erts: Fix incoming signal handling for exiting processSverker Eriksson
Seen symptom: handle_process_info() called with is_alive=1 on exiting process, reading broken Process.u.initial.module atom overwritten by Process.u.terminate pointer. Solution: Let erts_proc_sig_handle_incoming() do nothing if process is already exiting.
2018-06-11Merge branch 'lukas/kernel/logger-config/OTP-13295'Lukas Larsson
* lukas/kernel/logger-config/OTP-13295: erts: Fix emulator log messages to use erlang:system_time kernel: Add LOGGER_SERVER_TAG to logger_server
2018-06-07Merge branch 'sverker/ets-auto-unfix-delete-race/OTP-15109'Sverker Eriksson
* sverker/ets-auto-unfix-delete-race/OTP-15109: erts: Fix race between ets table deletion and auto-unfix
2018-06-07erts: Fix race between ets table deletion and auto-unfixSverker Eriksson
Bug exists since ets-refs were introduced in 20.0 0d6dc895744c34c9c52fd42f4801a8a941864ae3. Problem: 1. Process A fixates table T. 2. Process B starts deleting table T (either by ets:delete or exit) and does tid_clear(). 3. Process A exits and does proc_cleanup_fixed_table() and get NULL from btid2tab() and deallocates DbFixation. 4. Process B continues deleting table in free_fixations_locked() and finds the deallocated DbFixation in the fixing_procs tree. Solution: Wait with tid_clear() until after free_fixations_locked() has traversed the fixing_procs tree.
2018-06-05Merge branch 'sverker/broken-sig-queue'Sverker Eriksson
* sverker/broken-sig-queue: erts: Cleanup in proc_queue_signal erts: Fix broken signal queue
2018-06-05erts: Cleanup in proc_queue_signalSverker Eriksson
* Remove 'last' arg to sig_enqueue_trace_cleanup * Only notify 'rp' if enqueue succeeded
2018-06-05erts: Fix broken signal queueSverker Eriksson
broken on master by 613cde66c25464121f2f6dace99782bad0e07d9b Scenario: proc_queue_signal() fails to send switched pending signal due to state & ERTS_PSFLG_FREE, and then calls erts_proc_sig_send_monitor_down() to enqueue to self followed by sig_enqueue_trace_cleanup() that destroyed 'next' pointer of enqueued signal. Solution: Switch order and do sig_enqueue_trace_cleanup() first.
2018-06-05mikpe/erts-port_task-invalid-call/PR-1828/ERL-621/OTP-15108Lukas Larsson
do not call abort_signal_task() with invalid data
2018-06-05erts: Fix emulator log messages to use erlang:system_timeLukas Larsson
This was changed in the logger in 8aa64c90ddd20ec0ca8cc5fe92a6124324c51da5.
2018-06-04Merge branch 'sverker/pooled-age-order'Sverker Eriksson
* sverker/pooled-age-order: erts: Let allocator pooled_tree also use Age Order
2018-06-04Merge branch 'sverker/erlang-memory-fix'Sverker Eriksson
* sverker/erlang-memory-fix: erts: Purge unused allocation types erts: Fix erlang:memory for 'processes' and 'processes_used'
2018-06-04Merge branch 'sverker/ets-count/OTP-14987'Sverker Eriksson
* sverker/ets-count/OTP-14987: erts,stdlib: Improve docs about obsolete ets_limit erts: Reduce test log noise from ets_SUITE erts: Increase scalability of ets name lookup erts: Rename one of delete_trap to select_delete_trap erts: Refactor usage of am_atom_put to ERTS_MAKE_AM erts: Add system_info(ets_count) erts: Fix narrow race between ets:new and ets:delete
2018-06-04erts: Increase scalability of ets name lookupSverker Eriksson
by expanding the default size of the hash table and increase number of locks.
2018-06-04erts: Rename one of delete_trap to select_delete_trapSverker Eriksson
2018-06-04erts: Refactor usage of am_atom_put to ERTS_MAKE_AMSverker Eriksson
and let compiler determine string lengths. These were actually wrong in erl_db.c: count_trap\0 replace_tra select_tra
2018-06-04erts: Add system_info(ets_count)Sverker Eriksson
2018-05-29do not call abort_signal_task() with invalid dataMikael Pettersson
2018-05-25erts: Make sure scheduler_data is setLukas Larsson
If scheduler_data is not set correctly on normal schedulers the code in erts_schedule_time_break and possibly others will trigger asserts.
2018-05-22erts: Purge unused allocation typesSverker Eriksson
2018-05-22erts: Let allocator pooled_tree also use Age OrderSverker Eriksson
if configured for the allocator. This was not implemented and pooled_tree always used address order first fit. The "problem" was as a carrier can be part of both the pooled tree (of its owner) and the allocation tree (of a foreign instance) at the same time. Solved by duplicating 'birth_time' in both AOFF_RBTree_t nodes for each carrier. Blocks still cannot use age order and does not pay any memory cost for birth_time.
2018-05-21Merge branch 'lukas/erts/cpu_time_thread/OTP-15090'Lukas Larsson
* lukas/erts/cpu_time_thread/OTP-15090: erts: Make cpu_timestamp use per thread on Linux
2018-05-21Fix deadlock in run queue evacuationJohn Högberg
2018-05-21Fix memory leak of processes that died in the run queueJohn Högberg
2018-05-18erts: Fix narrow race between ets:new and ets:deleteSverker Eriksson
of same named table. If other process does ets:delete before ets:new has completely finished and done save_owned_table then ets:delete might do delete_owned_table and deref wild pointers in tb->common.owned.
2018-05-18erts: Add some missing doxygen docsSverker Eriksson
2018-05-18Merge branch 'sverker/ets-delete_all_objects-trap/OTP-15078'Sverker Eriksson
* sverker/ets-delete_all_objects-trap/OTP-15078: erts: Rename untrapping db_free_*empty*_table erts: Make ets:delete_all_objects yield on fixed table erts: Optimize ets delete all in fixed table erts: Refactor ets select iteration code erts: Cleanup ets code erts: Optimize ets hash object deallocactions erts: Refactor pseudo deleted ets objects erts: Make atomic ets:delete_all_objects yield erts: Fix reduction bump for ets:delete/1
2018-05-18Merge branch 'sverker/system-profile-bug/OTP-15085'Sverker Eriksson
* sverker/system-profile-bug/OTP-15085: erts: Fix bug in system_profile
2018-05-18erts: Fix bug in system_profileSverker Eriksson
seen to cause redundant {profile,_,active,_,_} messages when process is terminating.
2018-05-18Merge branch 'rickard/delete_process_schedule/OTP-15081'Rikard Green
* rickard/delete_process_schedule/OTP-15081: Do not hold runq lock while deleting a process
2018-05-17Merge branch 'sverker/maps-iterator-order' againSverker Eriksson
2018-05-17Merge PR-1819 from sverker/enif_binary_to_term-bug/OTP-15080Sverker Eriksson
Fix bug in enif_binary_to_term for immediates
2018-05-16erts: Silence gcc warningsSverker Eriksson
‘res’ may be used uninitialized in this function
2018-05-16erts: Fix bug in enif_binary_to_term for immediatesSverker Eriksson
Symptom: Heap corruption Expanded test case to provoke this bug and test some more term types.
2018-05-16Merge branch 'sverker/maps-iterator-order'Sverker Eriksson
2018-05-16Merge branch 'rickard/suspend/OTP-14964'Rickard Green
* rickard/suspend/OTP-14964: Fix erts_try_lock_sig_free_proc() Update etp Replace previous suspend in setnode/3 New process suspend implementation based on async signaling Teach HiPE to yield from receive
2018-05-16Fix erts_try_lock_sig_free_proc()Rickard Green
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