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into maint-20
* john/erts/fix-process-schedule-after-free/OTP-15067/ERL-573:
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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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/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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* maint-20:
Updated OTP version
Update release notes
Update version numbers
inets: Prepare for release
inets: Add missing guard
Avoid WindowBits=8 as per the manual
Fix deflateParams on zlib 1.2.11
Ignore empty binaries in enif_inspect_iovec
Emasculate writable binaries on entering an iovec
Only apply EOS behaviors if there's pending data
Stop assuming that all schedulers are managed when updating msacc
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* sverker/systask-reqid-bug:
erts: Fix bug in systask scheduling
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when request id is an immediate.
Ex:
erlang:garbage_collect(P, [{async,Immediate}]).
may crash the VM.
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This fixes statistics_SUITE:msacc when dirty schedulers are used
during the test.
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* sverker/valgrind-fixes/OTP-14609:
erts: Suppress false memory leak for dlerror
[ct] Cleanup and rename purify related functions as valgrind
Revert "remove unused purify functions"
erts: Fix memory leak when sending to terminating port
erts: Fix harmless use of uninitialised value
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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]
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* lukas/erts/fix_dirty_trace_message_flush/OTP-14538:
erts: Must have main lock when flushing trace messages
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* 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
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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
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If we don't have the main lock, multiple threads may come in and
do the flush at the same time which will lead to all kinds of
strang problems.
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* rickard/purge-hibernated-20:
Update testcase to check that purge handle hibernated process correct
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
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* rickard/purge-hibernated-19/ERIERL-24/OTP-14444:
Update testcase to check that purge handle hibernated process correct
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
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* rickard/purge-hibernated-19:
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
Conflicts:
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/erl_process.c
erts/emulator/beam/erl_process.h
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* rickard/purge-hibernated:
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
Conflicts:
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/erl_gc.c
erts/emulator/beam/erl_process.h
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(First attempt to fix in 23f132d9ab776a.)
If an synchronous GC was requested by calling:
erlang:garbage_collect(Pid, [{async,Ref}])
the reply message could in certain circumstances be
lost.
The problem is that cleanup_sys_tasks() is never called
if there are dirty tasks, but no other active system tasks.
Also shorten the long waiting times in the test case
binary_SUITE:trapping/1 to make it much more likely that
the GC have not already finished when the process is killed.
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Before terminating a process, add assertions to make sure that
all queues for system tasks have been emptied.
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If an synchronous GC was requested by calling:
erlang:garbage_collect(Pid, [{async,Ref}])
the reply message could in certain circumstances be
lost.
The problem is in cleanup_sys_tasks() in erl_process.c.
If there were at least one dirty task, only the first
dirty task would be cleaned up. All other systems tasks
would not be cleaned up (that is, no replies would be
sent to other processes waiting for the tasks to finish).
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OTP-14152
* rickard/ds-runqs:
Make statistics/1 aware of dirty run-queues and tasks
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erts: Remove old unused functions
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The functions have been found using: https://github.com/caolanm/callcatcher
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OTP-14380
* rickard/ds-stack-size:
Suggested stack size options for dirty schedulers
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* lukas/erts/fix_non-smp_scheduler_data_init/OTP-14152:
erts: Initialize esdp->type in non-smp to normal
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OTP-14356
* rickard/timer-improvements:
Fix of later timer wheel
Minimum timeout position in each timer wheel
Manage timers to trigger at once in a slot similar to other timers
Introduce timer slot range counters
Timer wheel divided into a "soon wheel" and a "later wheel"
Remove unnecessary cancel callback from timer-wheel timers
Rearrange timer struct fields in order to simplify
Use timer wheel for short BIF timers
Use magic refs for BIF timers
Remove accessor BIF timer implementation
Fix aux-work timer implementation
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The previous code worked through luck because the memory
returned from erts_alloc was zero:ed and SCHED_NORMAL
is 0. But if you run with +Meamin that is not always the
case which is how this error was detected.
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* lukas/erts/20_minor_fixes:
erts: Rebuild etc executables if config.h changes
erts: Fix new gcc warning in check io
kernel: Add mem check to prim_file:large_write tc
erts: Fix two compiler warnings on OS X
erts: Fix erts_debug:df function info output
erts: Get rid of some unused function warnings on os x
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* rickard/ds-fixes:
Fix dirty GC implementation
Fix multi-scheduling with only one normal scheduler
Fix +SDPcpu
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* rickard/sched_type_tests:
Fix dirty scheduler type tests
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Old test for dirty schedulers didn't work with Visual C++
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