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* maint-21:
Updated OTP version
Update release notes
Update version numbers
Fix missing 'in' trace events during 'running' trace
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* rickard/running-trace-fix/ERL-713/OTP-15269:
Fix missing 'in' trace events during 'running' trace
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'in' trace events could be lost when a process had to be
rescheduled on another scheduler type (normal <-> dirty).
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* rickard/fix-suspend-monitor-down/OTP-15237/ERL-704:
Fix incoming suspend monitor down
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An incoming suspend monitor down wasn't handled correct when the
local monitor half had been removed with an emulator crash as result.
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into maint
erts: Delete fd from poll-set when closing fd_driver port
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* rickard/full-cache-nif-env/OTP-15223/ERL-695:
Fix caching of NIF environment when executing dirty
# Conflicts:
# erts/emulator/beam/erl_nif.c
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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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* rickard/full-cache-nif-env/OTP-15223/ERL-695:
Fix caching of NIF environment when executing dirty
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A lot of erts internal messages used behind APIs to create
non-blocking calls, e.g. port_command, would cause the seq_trace
token to be cleared from the caller when it should not.
This commit fixes that and adds asserts that makes sure
that all messages sent have to correct token set.
Fixes: ERL-602
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* lukas/erts/fix_udp_realloc_bug:
erts: Limit the automatic max buffer for UDP to 2^16
erts: Free udp buffer when getting EAGAIN
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* lukas/erts/etoomanyrefs_forker/OTP-15210:
erts: Handle EMFILE errors in forker_driver for write
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erl_alloc: align ErtsAllocatorState_t
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There is no reason to have a larger buffer than this as
the recvmsg call will never return more data.
OTP-15206
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Before this change, if a write to the uds failed due to
EMFILE to ETOOMANYREFS the entire vm would crash. This
change makes it so that an SIGCHLD is simulated to that
the error is propagated to the user instead of terminating
the VM.
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* lukas/erts/win_break_poll_thread_fix/OTP-15205:
erts: Fix bug where break would not trigger on windows
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* sverker/erl_interface/valgrind/OTP-15171:
erl_interface: Fix bug in ei_*receive_msg* functions
erl_interface: Seal test case memory leaks
erl_interface: Initialize erl_errno to zero
erts: Remove use of VALGRIND_PRINTF_XML
erl_interface: Add valgrind ability for test port programs
erts: Fix benign bug in cerl for valgrind
erts: Fix buggy calls to erts_sys_explicit_8bit_getenv
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which only existed in a patched version of valgrind (by pan)
no longer used.
Instead we use standard VALGRIND_PRINTF which will end up like this
if valgrind log format is XML and valgrind version >= 3.9:
<clientmsg>
<tid>7</tid>
<threadname>3_scheduler</threadname>
<text>Test case #20 ei_encode_SUITE:test_ei_encode_long/1
</text>
</clientmsg>
Note the extra trailing whitespace that may occure before </text>.
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* john/erts/kqueue-stdin-polling/OTP-15169/ERL-647:
Use fallback pollset for stdin and friends when using kqueue
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* john/erts/fix-literal-map-elements/OTP-15184:
Fix a rare crash when matching on literal maps
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* sverker/crash-dump-crash-literals/OTP-15181:
erts: Fix bug in crash dump generation
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Only SCPT should keep the recv buffer when going into
select. If UDP does it, it will result in many more
memory allocations than there should be which can be
very detrimental to performance.
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This bug was introduced in 988f5f5e8061ce2. The aux_thread
needs to be poked as it is the thread that handles all
break actions.
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* maint-21:
Updated OTP version
Update release notes
Update version numbers
Fix trace_info/2
Provide build support for standalone corba repo
Fix release notes for OTP-21.0.2
Move to a dirty scheduler even when we have pending system tasks
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When matching on a literal map, the map is placed into the general
scratch register first. This is fine in isolation, but when the
key to be matched was in a Y register it would also be placed in
the scratch register, overwriting the map and crashing the
emulator.
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* john/erts/fix-dirty-reschedule-bug/OTP-15154:
Move to a dirty scheduler even when we have pending system tasks
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Symptom: emulator core dumps during crash dump generation.
Problem:
erts_dump_lit_areas did not grow correctly
to always be equal or larger than number of loaded modules.
The comment about twice the size to include both curr and old
did not seem right. The beam_ranges structure contains *all* loaded
module instances until they are removed when purged.
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Two of them only affect valgrind builds
and the one for ERL_CRASH_DUMP_NICE seems benign.
Return value changed in c2d70945dce9cb09d5d7120d6e9ddf7faac8d230
old -> new
-1 -> 0 not found
0 -> 1 found ok
1 -> -1 found but too big
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* maint-21:
Updated OTP version
Update release notes
Update version numbers
Eliminate a crash in the beam_jump pass
stdlib: Fix a 'chars_limit' bug
Fix a race condition when generating async operation ids
Fix internal compiler error for map_get/2
beam_type: Fix unsafe optimization
public_key: Remove moduli 5121 and 7167 Thoose were added by 598629aeba9de98e8cdf5637043eb34e5d407751 but are not universaly supported.
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This is a hack to make the "noshell" option work; kqueue can poll
these fds but will not report EV_EOF. This may be common to all
all pipes but we have no way to tell whether an fd is a pipe or
not.
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* john/erts/inet-drv-race/OTP-15158/ERL-654:
Fix a race condition when generating async operation ids
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* john/erts/merge-OTP-15067:
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 counter used for generating async operation ids was a plain int
shared between all ports, which was incorrect but mostly worked
fine since the ids only had to be unique on a per-port basis.
However, some compilers (notably GCC 8.1.1) generated code that
assumed that this value didn't change between reads. Using a
shortened version of enq_async_w_tmo as an example:
int id = async_ref++;
op->id = id; //A
return id; //B
In GCC 7 and earlier, `async_ref` would be read once and assigned
to `id` before being incremented, which kept the values at A and B
consistent. In GCC 8, `async_ref` was read when assigned at A and
read again at B, and then incremented, which made them inconsistent
if we raced with another port.
This commit fixes the issue by removing `async_ref` altogether and
replacing it with a per-port counter which makes it impossible to
race with someone else.
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When a system task was enqueued on a process between being
scheduled and the check altered in this commit, we'd run dirty
code on a normal scheduler as the RUNNING_SYS flag wasn't set
and we wouldn't migrate back.
This change migrates us to a dirty scheduler instead, which will
immediately bounce us back to a normal scheduler where
RUNNING_SYS will be set appropriately.
This is caught fairly reliably by
process_SUITE:system_task_failed_enqueue on machines with a lot of
cores.
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* maint-21:
Updated OTP version
Prepare release
Fix unsafe optimization when running beam_block the second time
Fix environment case sensitivity issues on Windows
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* john/erts/merge-OTP-15067:
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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* lukas/erts/etp-aux-work-fixes:
erts: Update etp-commands with correct aux_flags
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