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* maint:
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
Conflicts:
OTP_VERSION
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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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* john/erts/fix-gunzip-eos/OTP-14730/ERL-507:
Only apply EOS behaviors if there's pending data
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* john/erts/msacc-dirty-schedulers/OTP-14707:
Stop assuming that all schedulers are managed when updating msacc
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* john/erts/misc-iovec-issues/OTP-14745/OTP-14750:
Ignore empty binaries in enif_inspect_iovec
Emasculate writable binaries on entering an iovec
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1.2.11 started bailing when avail_out==0 regardless of whether
there's anything to flush or not, and there's no point in adapting
the old method since it was vulnerable to bugs in other zlib
versions which updated the deflate parameters even on failure.
The api_deflateParams test has been expanded accordingly, and two
white-box cases in zip_usage has been updated to make fewer
assumptions about the output; the validity of the compressed data
is what matters, not whether it's exactly the same as the test
vector.
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* sverker/systask-reqid-bug:
erts: Fix bug in systask scheduling
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* sverker/systask-reqid-bug:
erts: Fix bug in systask scheduling
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* sverker/cleanup-hipe_bs_validate_unicode:
erts: Remove obsolete hipe primop bs_validate_unicode
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The lack of this caused serious data corruption when a binary was
altered after entering the queue. This went unnoticed because it
was never used without erlang:iolist_to_iovec, which always
emasculates binaries.
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which was replaced by 'is_unicode' in 5369e34a892bfd8ab5aa98df330e3bbf19497b71
but kept for ABI compatibility in OTP-20.*.
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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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When the code switches from printf() to erts_printf() the output
becomes garbled. Fixed by fflush()ing stdout first.
Fixed formatting of the "H E A P" banner for 64-bit systems.
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which was lost in merge 3ec66701f91eba6a7a12a813b2283c2e733f62c1
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Fix hipe bug in binary <<X/utf32>> construction
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by introducing new primop 'is_unicode'
with no exception (ab)use and no GC.
Replaces bs_validate_unicode which is kept for backward compat for now.
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Fix for x86_64 only.
The calling native code can not handle a GC
as it has a raw pointer where to write the binary data.
If a GC happens the data (utf32) will be written
to the old deallocated heap.
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OTP-13760
SCTP connect could return error even if the connect is ongoing
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* lukas/erts/misc_fixes:
erts: Fix a bunch of compiler warnings
kernel: Fix gen_tcp_misc indentation
erts: Fail port_SUITE:huge_env if error code > 127
erts: Add lcnt prototype for dist locks update
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* lukas/erts/pgo/OTP-14604:
erts: Only do PGO if gcc supports -fprofile-correction
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Correct erlang:is_builtin/3 for apply/2 and yield/0
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* maint:
erl_process_dump: Don't assume that literals can be found
Remove one superfluous closing parenthesis in oam_intro.xml
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Native code does not register its literals in the code header for the
loaded code. Therefore, a literal created by native code can not be
found by mark_literal(). Ignore literals that can't be found instead
of crashing (the crasdump_viewer will report such literals as
incomplete heap data, but will not crash).
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* lukas/erts/gc-docs:
erts: Add Garbage Collection internal docs
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erlang:is_builtin(erlang, M, F) returns false for apply/2 and
yield/0. The documentation for erlang:is_builtin/3 says that it
returns true for BIFs that are implemented in C. apply/2 and
yield/0 are implemented in C (as BEAM instructions), and
therefore the correct return value is true.
Also see a similar argument that was made for apply/3 in the past:
http://erlang.org/pipermail/erlang-bugs/2015-October/005101.html
https://bugs.erlang.org/browse/ERL-500
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gen_sctp:connect_init/4 could return error even though the connect are in progress.
I.e. connect on socket returned "in progress".
The error can come from packet_inet_output() which is checking the socket for errors.
The issue here is that from erlang you don't think the connect is still ongoing.
But you will receive a sctp_assoc_change message later on.
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This fixes statistics_SUITE:msacc when dirty schedulers are used
during the test.
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* maint:
Updated OTP version
Update release notes
Update version numbers
erts: Fix so that bind correct schedulers
Update version
Fix error handling when decoding an AVP with an alternate dictionary
Remove unused function arguments
Fix faulty recursion
vsn -> 2.1.2
Update appup for ERIERL-14684
Fix speling error 'sndbuf' -> 'recbuf'
Add zlib:set_controlling_process/2
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
erts: Fix so that bind correct schedulers
Update version
Fix error handling when decoding an AVP with an alternate dictionary
Remove unused function arguments
Fix faulty recursion
vsn -> 2.1.2
Update appup for ERIERL-14684
Fix speling error 'sndbuf' -> 'recbuf'
Add zlib:set_controlling_process/2
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into maint-20
* lukas/erts/fix-cpu-bind-w-modifies-scheduler-avail/OTP-14694:
erts: Fix so that bind correct schedulers
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When the cpu ids and scheduler ids don't match,
the end schedulers could end up not being bound
when they should be.
example:
> taskset -c 1-3 erl +S 4 +sbts
> erlang:system_info(scheduler_bindings).
{1,2,3,unbound}
This fix makes it so that all cores are used to
bind schedulers.
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* bjorn/compiler/match-literals:
Optimize instructions for comparing a register with a literal
Optimize matching of literals for single-valued types
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We can avoid calling eq() from the is_eq_exact_literal/3
and is_ne_exact_literal/3 instructions if the source operand is
an immediate (since a literal is either a boxed or a list, never
an immediate).
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* maint:
Bump version of crash dumps to 0.4
Verify that binaries of different sizes are dumped correctly
Don't dump literal areas that are not referenced at all
Dump literals separately to avoid incomplete heap data
Implement dumping of maps in crash dumps
Buffer writing of crash dumps
Conflicts:
erts/emulator/beam/erl_alloc.types
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This can happen for instance if erl_child_setup segfaults
before it can do the execv.
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* bjorn/erts/cuddle-with-tests:
Eliminate use of deprecated functions in string
Eliminate warnings for ignoring the result of an expression
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When a literal was used from several processes, the literal would
be dumped in only one of the processes. The other processes
that referenced the literals would have incomplete heap data.
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Maps would be dumped as the atom 'undefined', which is
not very informative.
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Writing of crash dumps were done using unbuffered IO. This
is slow since many small writes are done.
Use a FILE* with an allocated buffer to obtain buffered IO.
I wrote a small test program that created 50000 binaries of 200 bytes
each and then created a crash dump. The crash dumping was an order of
magnitude faster with buffered IO than without.
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