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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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If we don't use per thread the value becomes completely
nonsensical on systems with more than one scheduler.
We keep the old solaris behaviour in order to support the
option, but it only really works when using a single
scheduler.
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Symptom: maps:iterator+next returns different orders
for the exact same map.
Problem: Number of cached key-values within iterator term
depends on number of input reductions to erts_internal_map_next_3.
Solution: Build cached key-values in destructive non-reverse order
to not affect iteration order.
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as it's now only used for empty tables by ets:new/2.
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by only allocating one FixedDeletion with the new "all" flag
instead of one FixedDeletion per slot.
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* Remove all "mtraversal_" prefixes.
* Rename all local context variables as "ctx".
* Changed callbacks from function arguments
to members of new base context struct "match_callbacks_t"
* Remove unnecessary struct initializations "= {0}"
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to be done after lock has been released.
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