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* sverker/big-band-bug/ERL-804/OTP-15487:
erts: Fix bug in 'band' of two negative numbers, one big
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Similar bug as for bxor fixed by abc4fd372d476821448dfb9
Ex:
1> io:format("~.16B\n", [-16#1110000000000000000 band (-1)]).
-1120000000000000000
Wrong result for
(-X bsl WS) band -Y.
where
X is any positive integer
WS is erlang:system_info(wordsize)*8*N where N is 1 or larger
Y is any positive integer smaller than (1 bsl WS)
Fix:
The subtraction of 1 (for 2-complement conversion)
must be carried along all the way to the last words.
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* dotsimon/ref_ordering_bug/OTP-15225:
Fixed #Ref ordering bug
Test #Ref ordering in lists and ets
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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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* sverker/system-profile-bug/OTP-15085:
erts: Fix bug in system_profile
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* sverker/enif_binary_to_term-bug/OTP-15080:
erts: Fix bug in enif_binary_to_term for immediates
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seen to cause redundant {profile,_,active,_,_} messages
when process is terminating.
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Symptom: Heap corruption
Expanded test case to provoke this bug
and test some more term types.
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When supplied without an enclosing list, bitstrings were returned
as-is instead of badarging.
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A binary is a binary as long as its size in bits is evenly divisible
by 8, regardless of whether it has a bit offset or not.
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When supplied without an enclosing list, bitstrings were silently
truncated to [] instead of badarging.
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This has always worked but we lacked test coverage for it.
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Huge inputs weren't particularly useful and took forever to run, so
this commit winds it down to a more sane level that still causes
lots of yielding.
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
erts: Add system_flags(erts_alloc,"+M?sbct *")
erts: Add age order first fit allocator strategies
erts: Refactor erl_ao_firstfit_alloc
erts: Add migration options "acnl" and "acfml"
kernel: Add os:cmd/2 with max_size option
erts: Add more stats for mbcs_pool
erts: Fix alloc_SUITE:migration
stdlib: Make ets_SUITE memory check try again
erts: Improve carrier pool search
erts: Improve alloc_SUITE:migration
erts: Refactor carrier dealloc migration
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into 'sverker/maint-20/alloc-n-migration/ERIERL-88'
OTP-14915
OTP-14916
OTP-14917
OTP-14918
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into 'sverker/maint-19/alloc-n-migration/ERIERL-88'
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to change sbct limit in runtime for chosen allocator type.
With great power comes great responsibility.
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ageffcaoff: Age First Fit Carrier, Address Order First Fit (within carrier)
ageffcbf : Age First Fit Carrier, Best Fit (within carrier)
ageffcaobf: Age First Fit Carrier, Address Order Best Fit (within carrier)
Prefer old carriers, the older the better.
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Fix rounding bug in float_to_list/2
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* fhunleth/binary_to_integer_chec/PR-1671/OTP-14879:
Fail if ':' is passed to binary_to_integer/2
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Example symptom:
1> float_to_list(0.145, [{decimals,1}]).
"0.2"
There were two problems in sys_double_to_chars_fast
1. Most serious was adding 0.55555555 / (10^D) instead of 0.5 / (10^D)
which imposed a 5.5% risk of a faulty rounding up.
2. Using fixpoint for frac_part which lost significant bits if F < 0.5
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See also ERL-553 and ERL-544 (commit c3ddb0f).
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* rickard/file-encoding-stacktraces/OTP-14847/ERL-544:
Fix encoding of filenames in stacktraces
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Before:
1> binary_to_integer(<<":">>, 16).
3
After:
1> binary_to_integer(<<":">>, 16).
** exception error: bad argument
in function binary_to_integer/2
called as binary_to_integer(<<":">>,16)
Prior to this change, both list_to_integer/2 and binary_to_integer/2
would convert strings with values between ASCII '9' up to '0'+base for
base > 10. For example, when converting in base 16, you could pass ':',
';', '<', '=', '>', and '?' without getting an exception. This was due
to a missing check in c2int_is_invalid_char().
This change adds the missing check and a regression test for passing
':'. It also simplifies the code and tightens up an out-of-bounds check
to make it off-by-one rather than off-by-two.
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It crashed due to recursive calls to alloc_util
in carrier initialization test callback.
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to mix it up with some realloc calls.
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Symptom: "Closing pipe in state Waiting. Event lost?"
Snake oil:
Do erlang:yield() instead of busy spinning in "Waiting" state.
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When compiling Erlang source code, the literal area for the
module can only contain data types that have a literal
syntax.
However, it is possible to sneak in other data types
(such as references) in the literal pool by compiling from
abstract or assembly code. Those "fake literals" would work
fine, but would crash the runtime system when the module containing
the literals was purged.
Although fake literals are not officially supported, the
runtime should not crash when attempting to use them.
Therefore, fix the garbage collection of literals and releasing
of literal areas.
https://bugs.erlang.org/browse/ERL-508
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Symptom: random rpc net_adm:ping returned pang
Use monitor_node to wait for failed connection
before we try to connect again.
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for "+hmqd off_heap"
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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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* lukas/erts/tracing/recv_exit_signal_deadlock/OTP-14678:
erts: Fix lock order when recv tracing trapped exit signal
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* lukas/erts/fix_caller_trace_for_apply_bifs/OTP-14677:
erts: Fix caller trace for apply bifs
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* sverker/bad-dist-msg-bug/ERIERL-80/OTP-14661:
erts: Fix bug when detecting bad dist message
Add distribution_SUITE:bad_dist_ext_size
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Bifs that are called through the export entry
using i_call_last could have their cp set to
return_trace, just like any other call. So we
have to unwind the trace stack to get the correct
cp. Not doing this creates a lot of issues for
fprof.
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* sverker/bad-dist-msg-bug/ERIERL-80/OTP-14661:
erts: Fix bug when detecting bad dist message
Add distribution_SUITE:bad_dist_ext_size
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maint-19
* sverker/19/binary_to_atom-utf8-crash/ERL-474/OTP-14590:
erts: Fix crash in binary_to_atom/term for invalid utf8
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