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New BIF os:unsetenv/1 which deletes an environment variable and
returns 'true'.
Does not change any old functionality.
Calls the libc function unsetenv(3) on UNIX and
SetEnvironmentVariableW(key, NULL) on Windows. The unicode support
is the same as for os:getenv and os:putenv.
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* lukas/cerl_dump/OTP-11468:
erts: Add cerl -dump and dumping in z_SUITE
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Needed by Dialyzer.
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Replaced the +MMscmgc switch with the +MMscrfsd switch. The old switch
didn't reflect what it controlled.
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The switch "+Musac <boolean>" controls if sys_alloc carriers
are allowed.
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Using "+Mlpm all" switch all mappings made by the emulator will
be locked into physical memory.
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* sverk/monitor-memory-leak/OTP-11410:
erts: Fix memory leak for distributed monitors
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by using the macro VALGRIND_DO_ADDED_LEAK_CHECK if it exists
for system_info({error_checker,memory})
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Disable carrier pool for the thread safe allocator instance 0.
This since non-managed threads allocates and deallocates memory
in this instance, and only managed threads are allowed to
access the carrier pool.
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On some OSs posix_memalign exists, but it does not allow for alignment
greater than the current page size. So we have to do a runtime check for
alignment size and also add cross compile options.
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When dumping the heaps and stacks in the erl_crash.dump file, only
the lower 32 bits of pointers would be printed. Ensure that all bits
are printed.
While at it, make sure that printing sub binaries with a debug compiled
run-time system will work.
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* egil/fix-crashdump-pointer-crash/OTP-11420:
erts: Fix segfaulting crashdump writing
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* mhssler/fix-doc-typos/OTP-11414:
Fix ssh doc typos
Fix gen_sctp doc typo
Fix erts erlang.xml doc typo
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Crashdumps initiated by out-of-memory on spawn could cause the beam
to segfault during crashdump writing due to invalid pointers.
The pointers are invalid since the process creation never finished.
This commit remedies this problem by removing the process from
crashdump printout.
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* sverk/time-consistency-test:
erts: Fix time_SUITE:consistency to work over turn of the month
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badargif -> badarg if
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* rickard-sverker/supercarrier/OTP-11149: (29 commits)
erts: Add test case for erts_mmap
erts: Add mutex to init_atoms in erts_mmap.c
erts: Fix lock violation for init_atoms in erl_mmap.c
erts: Fix misc minor bugs in supercarrier initialization
erts: Add erts_mmap stats
erts: Add erts_bld_tupleX macros
erts: Rename erts_bld_atom_uint_2tup_list to *_uword_*
erts: Fix bug in lookup_free_seg
erts: Fix race bug in erts_munmap
erts: Add HARD_DBG_MSEG
erts: Refactor rbt_insert in erl_mmap
erts: erts_mmap improved free seg desc management
erts: Add documentation for +MMsc* system flags
erts: Allow page aligned erts_munmap()
erts: Sort tree in super aligned sizes (SA_SZ_ADDR_ORDER)
erts: Fix ASSERT bug and void* arithmetics
erts: Add mmap argument to erts_debug:get_internal_state
erts: Improve erts_mmap out of free descriptor management
erts: Cleanup erl_mmap
erts: Add __func__ to ERTS_ASSERT macro
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* fenollp/treewide_remove_unexpected_0xff/OTP-11323:
Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.
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Fix bsr bug occurring when shifting a huge number a huge number of
bits to the right. The bug can occur if Sint is 64 bits and int is 32
bits, causing a truncation in the big.c:I_lshift function.
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Add test data demonstrating that bsr is broken when shifting a large
number a huge number of bits to the right.
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* nox/silent-rules-fixes/OTP-11351:
Fix two small silent rules omissions
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Sometimes it is wanted to start erlang without loading the user dependent
.erlang file, for example in scripts and configure tests.
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by not holding the mseg lock while reading version and option info
which is unnecessary anyway.
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As part of erlang:system_info({allocator,mseg_alloc})
and erl_crash.dump
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for compile time argument checking
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and change from Uint to UWord values
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that could return segments that are too small after being super aligned.
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Must keep mutex to serialize (un)reserve ops.
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