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* 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
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* lukas/erts/etp-aux-work-fixes:
erts: Update etp-commands with correct aux_flags
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into john/erts/merge-OTP-15067
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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.
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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.
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* sverker/process-info-exiting:
erts: Fix incoming signal handling for exiting process
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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.
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* lukas/kernel/logger-config/OTP-13295:
erts: Fix emulator log messages to use erlang:system_time
kernel: Add LOGGER_SERVER_TAG to logger_server
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* sverker/ets-auto-unfix-delete-race/OTP-15109:
erts: Fix race between ets table deletion and auto-unfix
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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.
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* sverker/broken-sig-queue:
erts: Cleanup in proc_queue_signal
erts: Fix broken signal queue
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* Remove 'last' arg to sig_enqueue_trace_cleanup
* Only notify 'rp' if enqueue succeeded
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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.
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do not call abort_signal_task() with invalid data
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This was changed in the logger in 8aa64c90ddd20ec0ca8cc5fe92a6124324c51da5.
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* sverker/pooled-age-order:
erts: Let allocator pooled_tree also use Age Order
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* sverker/erlang-memory-fix:
erts: Purge unused allocation types
erts: Fix erlang:memory for 'processes' and 'processes_used'
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* 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
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by expanding the default size of the hash table
and increase number of locks.
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and let compiler determine string lengths.
These were actually wrong in erl_db.c:
count_trap\0
replace_tra
select_tra
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If scheduler_data is not set correctly on normal schedulers
the code in erts_schedule_time_break and possibly others
will trigger asserts.
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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.
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* lukas/erts/cpu_time_thread/OTP-15090:
erts: Make cpu_timestamp use per thread on Linux
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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.
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* 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
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* sverker/system-profile-bug/OTP-15085:
erts: Fix bug in system_profile
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seen to cause redundant {profile,_,active,_,_} messages
when process is terminating.
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* rickard/delete_process_schedule/OTP-15081:
Do not hold runq lock while deleting a process
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Fix bug in enif_binary_to_term for immediates
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‘res’ may be used uninitialized in this function
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Symptom: Heap corruption
Expanded test case to provoke this bug
and test some more term types.
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* 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
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Bug introduced in master by
613cde66c25464121f2f6dace99782bad0e07d9b
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from ensure_dirty_proc_handled
as an outline function callable from inline functions.
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