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When a dirty NIF is executed a "schedule in" trace event is
generated, which may in turn result in a generic system task being
created, causing the process to be scheduled out as it can't run
dirty with pending tasks.
This is usually fine since said system task is seldom created, but
ERTS_FORCE_ENIF_SEND_DELAY was de-facto always on for debug builds,
causing the process to bounce between dirty and normal schedulers
forever.
This commit is not a complete fix and it can go off the rails even
on normal builds; if there's a lot of dirty jobs lined up and the
receiver's msgq lock happens to be busy at the wrong time, the
additional trace messages generated through this will hammer the
lock and keep everything bouncing.
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Most functions return this if they're given an invalid path, eg. if
they contain "<" or ">". ENOENT may seem like a strange translation,
but that's what open(2) returns when fed garbage, so we'll roll with
that.
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When converting a comparison BIF (such as '=:=') to a test
instruction, run the other optimizations on the result.
When trying to combine is_eq_exact tests, handle the case
that is_eq_exact is followed by a jump instead of a label
to handle a test that has been newly converted from a BIF.
Taken together, those changes will coalesce more is_eq_exact
instructions into select_val instructions.
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A 'case' or 'if' that does not occur last in a function clause will
always force a stack frame. The reasoning behind this is that in most
uses of 'case' there will be a function call from within the
'case'. When there is a function call, the stack frame is needed both
to save the continuation pointer and to save any X registers that will
need to survive the call.
When there is no function call from a 'case', the resulting stack
frame is annoying. There will be register shuffling, and the existence
of the stack frame may thwart many optimizations (for example, in
beam_dead).
Therefore, add an extra pass to v3_codegen to avoid creating a
stack frame when not needed.
https://bugs.erlang.org/browse/ERL-514
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The compile option makedep_side_effect, erlc -MMD, instructs
the compiler to emit dependencies and continue to compile
as normal.
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Conflicts:
lib/ssl/src/ssl_cipher.erl
lib/ssl/src/ssl_handshake.erl
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erlexec adds $ROOT/erts-<vsn>/bin and $ROOT/bin first in $PATH on
startup, but didn't do so if they were in the $PATH already, which
meant that the bindir didn't point to the current release after a
downgrade.
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* ingela/ssl/cipher-suites/OTP-14749:
ssl: Use maps for cipher suites internally
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This is a preparation for improvements to come in option handling and
support for TLS-1.3
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* peppe/common_test/auto_cleanup/OTP-13832:
Add tests and doc for the new remaining_test_procs function
Implement function that finds disposable test processes
Tag Common Test system processes using process dictionary
Add app name tag in process dictionary
OTP-13832
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Conflicts:
lib/ssl/src/inet_tls_dist.erl
lib/ssl/src/ssl_dist_sup.erl
lib/ssl/src/ssl_tls_dist_proxy.erl
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* origin/raimo/ssl-dist-bench/OTP-14657:
Write SSL distribution benchmarks
Polish SSL distribution
Handle whitebox test message
Correct distribution doc
Use SNI when connecting
Use -ssl_dist_optfile options
Read in -ssl_dist_optfile to ETS
Facilitate test certs with common root
Stop checking DNS name for SNI
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* raimo/ssl-dist-optfile-backport/OTP-14657:
Use SNI when connecting
Use -ssl_dist_optfile options
Read in -ssl_dist_optfile to ETS
Facilitate test certs with common root
Stop checking DNS name for SNI
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* peppe/common_test/index_last_test/OTP-14281:
Show links to latest test run by using an html redirection file
OTP-14281
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maint
* lars/crypto/add-engine-ctrl-cmd-string-to-api/OTP-14801:
[crypto] Add engine_ctrl_cmd_string() to API
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* maint:
mnesia: Fix error handling in abort write
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* dgud/mnesia/backup-error-handling/OTP-14776:
mnesia: Fix error handling in abort write
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Only change is doc.
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add hibernate_after to the gen options type spec
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* maint:
debugger: Do not quote variables and button names in windows
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* hasse/debugger/fix_unicode/OTP-14802:
debugger: Do not quote variables and button names in windows
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v3_kernel could generate a #k_break{} with only one variable, even if
the preceding code and succeding code expected more than one value. It
happened to work anyway because the value returned from the break was
not actually used.
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We used to not care about the number of values returned from the
'after infinity' clause in a receive (because it could never be
executed). It is time to start caring because this will cause problem
when we will soon start to do some more aggressive optimizizations.
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* maint:
fix output formatting in several HiPE debug BIFs
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fix output formatting in several HiPE debug BIFs
OTP-14804
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