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Now that variables are represented as #b_var{}, there's no longer
any risk of colliding with anything else.
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We chose to refer to variables through their var_name() because we
anticipated the need to annotate them, but it turned out we didn't
really need that, and many things become a lot cleaner if the
entire #b_var{} is used to represent variables.
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Replace beam_dead with beam_ssa_dead
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OTP-14461 - New 'rand' algorithm: Xoroshiro928** also for 'crypto'
Implement a new 'rand' algorithm named 'exro928ss' and a new 'crypto' plugin for 'rand' named 'crypto_aes'.
Both are based on Xoroshiro928** which is derived from Xoroshiro1024** modified to use 58-bit words for performance reasons in the Erlang VM. Xoroshiro1024** has got the Xoroshiro1024 generator and the StarStar scrambler from the 2018 paper "Scrambled Linear Pseudorandom Number Generators" by David Blackman and Sebastiano Vigna.
This generator and scrambler combination shows no systematic weaknesses in standard statistical tests as TestU01(BigCrush) and PractRand, unlike the previously used * and + scramblers in the 'rand' module that exhibit statistical weaknesses for the lowest bits.
The 'crypto' plugin uses AES-256 as scrambler and the Xoroshiro928 as generator, which gives the same very long period and jump functions as for Xoroshiro928**, but a cryptographically secure scrambler gives absolutely no detectable statistical weaknesses regardless of how the generated numbers are used.
The speed of 'exro928ss' is only about 30-50% slower than the default fast 'rand' algorithm, but the state is roughly the double and it produces about 8 times the garbage per iteration.
The speed of 'crypto_aes' is about half (amortized) that of the default fast 'rand' algorithm which is fast and thanks to doing encryption in batches caching the result. Hence the state is much larger.
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* maint:
Updated OTP version
Update release notes
Update version numbers
Fix include-path regression caused by dd0a39c
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
Fix include-path regression caused by dd0a39c
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* sverker/erts/robustify-dist-entry-states/OTP-15297:
erts: Refactor port dist_entry & conn_id into PRTSD
Remove ugly fail case macros
Consolidate distribution entry state transitions
erts: Fix bug in undocumented system_flag(scheduling_statistics)
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spelled out as "port specific data".
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* Make connection_id part of the distribution handle as {ConnId, DistEntry}
in order for BIFs to verify correct connection.
* Make distribution handle opaque to net_kernel.
* Remove some unsafe lockless reads of DistEntry.flags
* Change state ERTS_DE_STATE_EXITING to be more of an internal state that
prevents erts from enqueue, encode or schedule new data to be sent. Otherwise
it should behave like ERTS_DE_STATE_CONNECTED.
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* siri/cuddle:
[logger] Skip app level test if app cannot be loaded
Terminate nodes after failed test cases in erl_distribution_SUITE
Skip performance test on build types other than 'opt'
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* maint:
stdlib: Allow lists with binaries in the Format argument
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* hasse/stdlib/binary_in_format/OTP-15304:
stdlib: Allow lists with binaries in the Format argument
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ets:new/2 doc update
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* maint:
crypto: Fix bad return/exception for unsupported cipher
crypto: Use aead functions for CHACHA20_POLY1305
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* hans/crypto/chacha_poly_into_aead_fns/OTP-15300:
crypto: Fix bad return/exception for unsupported cipher
crypto: Use aead functions for CHACHA20_POLY1305
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Accidently f11391139c4165e8541a52d45cd1525343a83927 merged by
0a218353e4360e36bac304b6a4e0effe78d95615 changed the
return exception 'notsup' to 'badarg' for unsupported chipher names.
This changes that back.
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This previously implemented cipher is a block cipher despite using chacha.
It also uses the EVP_CIPHER_CTX api which now unifies AES_GCM and AES_CCM
into one pair of encrypt and decrypt functions.
By integrating the existing chacha20_poly1305 code into aead_encrypt and
aead_decrypt we could remove two C-functions and simplify both the C-code
and the corresponding Erlang code in the CRYPTO application.
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* maint:
crypto: Disable problematic RSA options in LibreSSL
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* hans/crypto/disable_rsa_sslv23_libressl/OTP-15303:
crypto: Disable problematic RSA options in LibreSSL
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* maint:
crypto: Disable bad tests They do not test what was intended.
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* hans/crypto/revert_bad_tests:
crypto: Disable bad tests They do not test what was intended.
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They do not test what was intended.
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* raimo/receive-TOS-TCLASS/ERIERL-187/OTP-15145:
Write testcases for recvtos and friends
Fix term buffer overflow bug
Fix documentation due to feedback
Implement socket option recvtos and friends
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Use os:type() and os:version() to predict if the individual options
are supposed to be supported. We'll see if this holds.
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A hanging node from this suite can fail later tests, so terminate all
nodes() after each test case.
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OTP-15290
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The snmp mib compiler printed an spurious version message
if the 'version' option was provided.
OTP-15290
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Also fixed case clause.
OTP-15287 (ERIERL-206)
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As a consequence of some refactoring (OTP-14983, option
'chars_limit'), the Format argument of io_lib:format() no longer
accepts binaries in lists in Erlang/OTP 21.0.
Note that if Format is not of type io:format(), control sequences in
Format are ignored. This can result in unpredictable behaviour if, for
example, the output of io_lib:format() is used as Format: if the
output happens to be a string(), then control sequences are
interpreted, otherwise not.
A check that Format is of type io:format() will likely be introduced
in Erlang/OTP 22.0. That will probably mean work for some users, but
considering how unpredictable io_lib:format() is, we should try to fix
that.
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* maint:
kernel: Adjust disk_log tests
kernel: Adjust global testcase
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* hasse/kernel/adjust_tests:
kernel: Adjust disk_log tests
kernel: Adjust global testcase
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* siri/logger/post-21-continues/OTP-15132:
[logger] Read config before terminating handler process
[error_logger] Handle report_cb with arity 2
[proc_lib] Improve crash reports for single line logging
[logger] Include single_line option to report_cb
[logger] Check for deadlock when removing filters
[logger] Fix spec for handler callbacks to always return ok
[logger] Increase timetrap timer for handler_requests_under_load test
[logger] Improve code coverage in test
[logger] Refactor, and add error detection for configuration
[logger] Fix logger_disk_log_h_SUITE:sync and add som debug info
[logger] Update doc about file options in logger_std_h
[logger] Remove encoding option from logger_formatter
Remove outdated reference to error loggers
[logger] Refactor some logger internals
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* maint:
Improve trapping in lists:reverse/2
Fix unsafe use of lists:reverse/1
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* john/erts/improve-list-reverse-trapping/OTP-15199:
Improve trapping in lists:reverse/2
Fix unsafe use of lists:reverse/1
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* maint:
Fix PGO configure test
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* rickard/conf-pgo/OTP-15282:
Fix PGO configure test
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