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Fix typo
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As part of sys_core_fold, variables involved in bit syntax
matching would be annotated when it would be safe for a later
pass to do the delayed sub-binary creation optimization.
An implicit assumption regarding the annotation was that the
code must not be further optimized. That assumption was broken
in 05130e48555891, which introduced a fixpoint iteration
(applying the optimizations until there were no more changes).
That means that a variable could be annotated as safe for
reusing the match context in one iteration, but a later iteration
could rewrite the code in a way that would make the optimization
unsafe.
One way to fix this would be to clear all reuse_for_context
annotations before each iteration. But that would be wasteful.
Instead I chose to fix the problem by moving out the annotation
code to a separate pass (sys_core_bsm) that is run later after
all major optimizations of Core Erlang has been done.
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find and use source directive when searching for source file
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There are a multitude of RFC:s that point to each other and some of them
suggest different addresses with IPv4 suffixes. Use the IPv4 suffix
text representation only for the old well known ::a.b.c.d and
::ffff:a.b.c.d prefixes. The others seems to be moving targets.
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* lukas/erts/fix_zz_sigterm_kill/OTP-14451:
erts: Fix so that 81b628 (sigterm=kill) works
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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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* john/erts/fix-zombie-tcp-ports/ERL-430/OTP-14441:
Unconditionally clear IO buffers on send/shutdown errors
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* ingela/inets/ERL-382:
inets: httpc - Gracefull normal shutdown
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* ingela/dtls/retransmisssion-timers:
dtls: Fetch next DTLS record when dropping resent handshake data
dtls: Use enter actions
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* lukas/erts/sendfile_sunos_fix/OTP-14424:
erts: Fix sendfile closeduring scenario on sunos
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* dgud/observer/edit-pid-port-ref:
observer: Allow edit of pid, port and refs
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* dgud/fix-unicode-atom:
mnesia: Print tables with ~ts to support unicode atoms
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On Solaris, giving a too long sfv_len results in an
EINVAL error, but data is still transmitted and len is
correctly. So we translate this to a success with that
amount of data sent. This may hide some other errors
that causes EINVAL, but it is the best we can do for now.
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Using enter actions for retransmission timers makes the code easier to
understand. Previously the retransmission timer was incorrectly started in
the connection state. Using enter actions feels like a cleaner approach
than bloating the state with more flags.
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OTP-14451
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* lukas/erts/20_minor_fixes:
kernel: Iterate for correct time in os_SUITE:perf_counter
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Conflicts:
OTP_VERSION
erts/vsn.mk
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Time measurements are always tricky, particulary on virtual hosts.
On one particular virtual host, the measured times were often 0.
Measuring the time for 100 calls instead of 10 calls helps, but
0 can still be returned, so we will also need to discard
measurements that return 0 and try again.
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On a computer with 32 schedulers, there would be 9632 (301*32)
'timeout' message in the receive queue. Receiving them with a
selective receive (matching on the timer ID) is quite slow.
Change the test case to read out the queue in the order the
messages are stored in the queue.
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old_scheduler_SUITE was written before the SMP emulator.
It does not test anything that scheduler_SUITE does not
test. Keeping it wastes time when running the emulator
test suite, and does not help us find any bugs that
scheduler_SUITE would find.
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process_SUITE starts os_mon in init_per_suite/1. Therefore,
there may be occasional alarm info messages received. Make
sure that they are ignored and don't cause the test fail to
fail.
Also, get rid of the flush/0 function that discards all
messages in the message queue. Instead, be more selective
and only discard {error, ...} messages.
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If process_SUITE:spawn_opt_max_heap_size/1 failed, the default
value for the maximum heap size could have been changed. That
would cause other test cases that spawned huge processes to
fail.
Contain the damage by always restoring the default value
for max_heap_size in end_per_testcase/2.
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bulk_send_bigbig/1 sometimes fails even if there is nothing wrong.
Stop testing the ratio, and just return information about the speed
and number of monitor messages. The testcase will still serve as a
smoke test of the +zdbbl option.
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Refactor bulk_send_bigbig/1 to make it somewhat easier to follow.
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c062dfc485a added timetraps to test suites that had no timetraps.
Some of added timetraps are only 5 or 10 seconds, which is can be
too short time on some slow computers. Change those times to one
or two minutes.
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It is expected that low-priority processes should be allowed
to run about 1/8 of the time of normal-priority processes.
The proportion calculated was usually considerably lower than
1/8. It seems that the main reason is the punishement in
reductions when sending to a process that alreday has many
messages in the message queue. I have verified that by running
the emulator with the +snsp to turn off the send punishment.
To avoid that punishment, let the server process run at high
priority so that it can keep its message queue short.
It seems that the proportion is now very close to 1/8. Therefore,
we can tighten the margins for the proportion.
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* lukas/erts/hipe_mkliterals_libs/ERIERL-14/OTP-14447:
hipe: Fix hipe_mkliterals make recipe
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Make some C code static
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erts: Remove unused functions from erl_cpu_topology
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Update erl_msg_tracer example
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OTP-14444
* rickard/purge-hibernated-19:
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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The need for more trace patterns requires a somewhat different structure.
It was previoiusly a bit difficult to use in e.g. test suites. Now it is easier.
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