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* rickard/timer-sid-bug/OTP-14548:
Fix scheduler id field in timers
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maint-18
* sverker/r16/binary_to_atom-utf8-crash/ERL-474/OTP-14590:
erts: Fix crash in binary_to_atom/term for invalid utf8
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* sverker/big-bxor-bug/ERL-450/OTP-14514:
erts: Fix bug in bxor of a big negative number
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* sverker/prealloc-race-bug/OTP-14491:
erts: Fix bug in quick alloc
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such as a sub-binary, of a correct utf8 string,
that ends in the middle of a character.
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Wrong result for
(X bsl WS) bxor Y.
where
X is any negative integer
Y is any integer that does not require more words than X
WS is erlang:system_info(wordsize) or larger
Fix: The subtraction of 1 (for 2-complement conversion)
must be carried along all the way to the last words.
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The effect of the race is that a pre-allocated memory block
is inserted last without updating tail.data.last, which will cause
all subsequent insertions to also fail to update tail.data.last.
Hence all pre-allocation for this quick alloc instance is leaked
for this thread and will fallback on erts_alloc.
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=== OTP-18.2.4.0.1 ===
Changed Applications:
- erts-7.2.1.1
Unchanged Applications:
- asn1-4.0.1
- common_test-1.11.2
- compiler-6.0.2
- cosEvent-2.2
- cosEventDomain-1.2
- cosFileTransfer-1.2
- cosNotification-1.2
- cosProperty-1.2
- cosTime-1.2
- cosTransactions-1.3
- crypto-3.6.2
- debugger-4.1.1
- dialyzer-2.8.2
- diameter-1.11.1
- edoc-0.7.17
- eldap-1.2
- erl_docgen-0.4.1
- erl_interface-3.8.1
- et-1.5.1
- eunit-2.2.12
- gs-1.6
- hipe-3.14
- ic-4.4
- inets-6.1.1
- jinterface-1.6.1
- kernel-4.1.1
- megaco-3.18
- mnesia-4.13.2
- observer-2.1.1
- odbc-2.11.1
- orber-3.8
- os_mon-2.4
- ose-1.1
- otp_mibs-1.1
- parsetools-2.1.1
- percept-0.8.11
- public_key-1.1
- reltool-0.7
- runtime_tools-1.9.2
- sasl-2.6.1
- snmp-5.2.1
- ssh-4.2.1
- ssl-7.2
- stdlib-2.7
- syntax_tools-1.7
- test_server-3.9.1
- tools-2.8.2
- typer-0.9.10
- webtool-0.9
- wx-1.6
- xmerl-1.3.9
* tag 'OTP-18.2.4.0.1':
Updated OTP version
Prepare release
Conflicts:
OTP_VERSION
erts/vsn.mk
otp_versions.table
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* rickard/rq-len/OTP-13201:
Fix testcase
Light weight statistics of run queue lengths
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* sverker/bin2term-zlib-bug/ERL-340/OTP-14159:
erts: Fix binary_to_term for compressed and zlib >= v1.2.9
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maint-18
* egil/erts/fix_scheduler_suspend/ERL-94/PR-978/OTP-13425:
erts: Fix install of suspend handler
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* rickard/thr-prgr-unmanaged-delay-bug/OTP-13869:
Fix erts_thr_progress_unmanaged_delay()
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* rickard/drv-send-term-thr-bug/OTP-13866:
Fix thread calls to erl_drv_send_term()/erl_drv_output_term()
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Problem: z_stream was incorrectly copied with memcpy
which just happened to work with zlib < v1.2.9.
Solution: Avoid copying z_stream.
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Thread progress leader update did not cache current unmanaged index
when waiting for unmanaged threads. This caused
erts_thr_progress_unmanaged_delay() to stop working until a new leader
took over.
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This commit makes sure to setup the suspend handler
to matter what +B option is given at the command line.
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* rickard/erl-crash-dump-bug/OTP-13799:
Avoid segfault when printing slogan after crashdumping
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* rickard/proc-tmo-bug/OTP-13798:
Fix race causing lost wakeup on receive-after timeout
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in 'set' with 'write_concurrency'
when inserting default object causes table to grow
and the bucket to split is protected by same lock as the key.
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Always free term after WUNLOCK_HASH
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* sverker/erts/trap_exit-race/OTP-13452:
erts: Fix race for process_flag(trap_exit,true)
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* rickard/proc-free-fix/OTP-13446:
Fix bad refc management of process struct
# Conflicts:
# erts/emulator/beam/erl_process.c
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* rickard/port-sig-dropped-fix/OTP-13424:
Fix implementation of dropped signal to port
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* rickard/ethr-event-futex-wait-timeout/OTP-13420:
Fix premature timeouts for ethread events on Linux
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* rickard/last_calls/OTP-13418:
Unbreak process_info(Pid,last_calls)
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and a concurrent exit signal.
We now actually guarantee that the process will not die
from exit signal *after* the call to process_flag(trap_exit,true)
has returned.
The race is narrow and probably quite hard to observe even if you
manage to provoke it. Has only been confirmed with the help of
return trace and a sleep in send_exit_signal().
Solution:
Seize status lock to prevent send_exit_signal() from reading
an old status (without TRAP_EXIT) and then writing PENDING_EXIT
after TRAP_EXIT has been set by process_flag_2().
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This was accidentally removed in commit cd6903be0740db
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No point in checking tmp_alloc instance 0
as any non-scheduler thread could race us.
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One little (unsigned long) left behind.
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* ia/msantos/unsupported-protocols:
Skips any sockets with unsupported protocols.
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Patch from end of PR 864
Fixes problem reported in the PR by jeckersb
In this error case, a negative file descriptor is now saved at
listensock[i], which leads to a buffer overflow later on at
https://github.com/msantos/otp/blob/epmd-IPv6-node-reg2/erts/epmd/src/epmd_srv.c#L498
when calling FD_ISSET(listensock[i],&read_mask).
To reproduce this:
Completely disable IPv6 with ipv6.disable=1 on the kernel command line
Build with fortified code (RHEL/CentOS default): CFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fno-strict-aliasing'
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OTP-13251
* sverk/halt-INT_MIN:
erts: Make erlang:halt() accept bignums as Status
erts: Change erl_exit into erts_exit
kernel: Remove calls to erl_exit
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