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'rickard/new-purge-strategy/OTP-13833' into maint
* rickard/fun-purge-bug/OTP-13809:
Fix purge of code
Reclaim literal area after purge has completed
Separate literal area from code
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/erl_init.c
erts/preloaded/ebin/init.beam
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Ensure that we cannot get any dangling pointers into code that
has been purged. This is done by a two phase purge. At first
phase all fun entries pointing into the code to purge are marked
for purge. All processes trying to call these funs will be suspended
and by this we avoid getting new direct references into the code.
When all processes has been checked, these processes are resumed.
The new purge strategy now also completely ignore the existence of
indirect references to the code (funs). If such exist, they will
cause bad fun exceptions to the caller, but will not prevent a
soft purge or cause a kill of a process having such live references
during a hard purge. This since it is impossible to give any
guarantees that no processes in the system have such indirect
references. Even when the system is completely clean from such
references, new ones can appear via distribution and/or disk.
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of https://github.com/parndt/otp into maint
* 'bugfix/ets-docs-typo' of https://github.com/parndt/otp:
Fix typo: specificationc -> specification
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* peppe/debugger_crash/ERL-191/OTP-13756:
Make sure exit in non-interpreted code doesn't crash the debugger
OTP-13756
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* siri/reltool/fix-dialyzer-warnings:
[reltool] Fix dialyzer warnings introduced by OTP-11993
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* raimo/gen_statem-callback_mode/OTP-13752:
Include trap_exit in server skeletons
Improve sys debug
Handle exceptions in init/1 and callback_mode/0
Clarify error values
Doc fixes
Rewrite SSH for gen_statem M:callback_mode/0
Rewrite SSL for gen_statem M:callback_mode/0
Rewrite Tools for gen_statem M:callback_mode/0
Rewrite gen_statem docs for M:callback_mode/0
Rewrite gen_statem TCs for M:callback_mode/0
Rewrite gen_statem for M:callback_mode/0
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Register allocation could transform something like
fmove u32, d99
to
fmove $rdx, 0x20($rsp)
which is an invalid instruction.
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Since the link register/return address is restored before stack
arguments are stored to the frame, we must not use it to store a stack
argument. We do that by adding it to the registers clobbered by
pseudo_tailcall_prepare.
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The problem was caused by shift-by-immediate-zero, which wraps to
immediate-32 with some shiftops. TODO: Someplace should be modified to
crash when these are generated so debugging further instances of this
gets easier in the future.
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maint
* gomoripeti/syntax_tools/merl-transform/PR-1123/OTP-13755:
Fix infinite loop in merl_transform
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* lukas/erts/port_monitor_mem_leak/OTP-13818:
erts: Fix port monitor memory leak
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* ingela/ssl/ssl_npn_hello_SUITE_precondition:
ssl: Check precondition for ssl_npn_hello_SUITE
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corrected some typo
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* dgud/wx/broken-links:
wx: Add missing specs
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* dgud/wx/increase_wx_stacksize:
Request a larger stacksize for wx thread
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* maint-19:
Updated OTP version
Prepare release
erts: Make sure to flush potential exit message
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* lukas/kernel/os_cmd_fix_exit_message_leak/OTP-13813:
erts: Make sure to flush potential exit message
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to test net_kernel:setopts and getopts.
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* maint-18:
Updated OTP version
Prepare release
Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
otp_versions.table
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* maint-19:
Updated OTP version
Prepare release
Avoid segfault when printing slogan after crashdumping
Fix race causing lost wakeup on receive-after timeout
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into maint
* bjorn/compiler/ambiguous_catch_try_state/ERL-209/OTP-13804:
[ERL-209] Fix ambiguous_catch_try_state inconsistency error
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* bjorn/asn1/support-parallel-build/OTP-13624:
asn1_test_lib: Compile ASN.1 modules in parallel
Support 'make -j' when compiling ASN.1 modules
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Test that the changes in the previous commit allows us to
compile ASN.1 modules in parallel.
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When attempting to build multiple ASN.1 modules in parallel (e.g. by
running 'make -j'), the ASN.1 compiler could crash because the names
of the .asn1db files clashed. For example, if A.asn1 and B.asn1 both
import from C.asn1, the compiler would write a C.asn1db file when
compiling A.asn1 and when compiling B.asn1.
We can avoid this problem if the compiler only writes the
module's own .asn1db file. That is, when compiling A.asn1,
the compiler would only write A.asn1db, not C.asn1db. Also,
make sure that we make the write atomic by first writing to
a temporary file that is then renamed.
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* lukas/erts/tracing/fix_sparc_align_issue/OTP-13803:
erts: Align ErtsThrPrgrLaterOp when free'ing tracer
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On Sparc all structs with a double word element in are assumed
to be allocated on a two word boundary. So we have to make sure
that the ErtsThrPrgrLaterOp * points to 8 / 16 byte aligned memory.
As it only costs one word I've done it on all architectures in case
some unknown other arch also needs this.
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* lukas/erts/fix_init_stop_code_load_race/OTP-13802:
erts/kernel: Fix code loading deadlock during init:stop
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When init:stop is called it walks the application hierarchy
and terminates each process. Some of these processes may do
something while terminating and sometimes that something
needs to load some new code in order to work. When this happens
the code_server could just be in the process of terminating
or the erl_prim_loader could be active. In both these cases
the request to load the new code would cause a deadlock in the
termination of the system.
This commit fixes this by init rejecting attempts to load new code
when init:stop has been called and fixing a termination race in
the code_server.
This however means that the process that tried to do something
when told to terminate (for instance logging that it is terminating)
will crash instead of loading the code.
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