Age | Commit message (Collapse) | Author |
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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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* msantos/epmd-IPv6-node-reg2/PR-864/OTP-13364:
epmd: support IPv6 node registration
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Just mask away the high bits to get a more tolerant erlang:halt
that behaves the same on 32 and 64 bit architectures.
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This is mostly a pure refactoring.
Except for the buggy cases when calling erlang:halt() with a positive
integer in the range -(INT_MIN+2) to -INT_MIN that got confused with
ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT.
Outcome OLD erl_exit(n, ) NEW erts_exit(n, )
------- ------------------- -------------------------------------------
exit(Status) n = -Status <= 0 n = Status >= 0
crashdump+abort n > 0, ignore n n = ERTS_ERROR_EXIT < 0
The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and
ERTS_DUMP_EXIT are the same as before (even though their values have
changed).
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* rickard/proc-not-running/OTP-13365:
Do not wait for main lock when looking up process not running
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* rickard/dw-cmpxchg-clang/OTP-13336:
Improve cmpxchg8b/cmpxchg16b inline asm
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* rickard/gcc5-pic-cmpxchg8b/OTP-13326:
Improve cmpxchg8b inline asm configure test
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* sverk/proc-lock-check-fix:
erts: Fix lock checker for process locks
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* rickard/rq-state-bug/OTP-13298:
Fix bug causing run-queue mask to become inconsistent
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Do lock order check *before* trying to seize lock... duh!
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Clang didn't like that ecx/rcx was mapped to input and output
variables of different types.
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* sverk/nif-test-cuddle:
erts: Fix wobbling test failure in nif_SUITE
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* msantos/ms/typo-windows-build-script:
Fix typo in Windows build scripts
OTP-13337
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This commit implements erts_internal:system_check(schedulers) with the
intent of a basic responsiveness test check of the schedulers.
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