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When the offending code is reached, new_crr is either uninitalized or
have been set to NULL. This patch removes the following warning:
beam/erl_alloc_util.c:3510:6: warning: variable 'new_crr' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
if (!(flags & CFLG_FORCE_MSEG)) {
^~~~~~~~~~~~~~~~~~~~~~~~~~
beam/erl_alloc_util.c:3567:23: note: uninitialized use occurs here
DEBUG_SAVE_ALIGNMENT(new_crr);
^~~~~~~
beam/erl_alloc_util.c:674:51: note: expanded from macro 'DEBUG_SAVE_ALIGNMENT'
UWord algnmnt__ = sizeof(Unit_t) - (((UWord) (C)) % sizeof(Unit_t));\
^
beam/erl_alloc_util.c:3510:2: note: remove the 'if' if its condition is always true
if (!(flags & CFLG_FORCE_MSEG)) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
beam/erl_alloc_util.c:3438:23: note: initialize the variable 'new_crr' to silence this warning
Carrier_t *new_crr, *old_crr;
^
= NULL
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* lukas/erts/supercarrier_fix/OTP-11149:
Improve error info when main carrier creation fails
Conflicts:
erts/emulator/test/alloc_SUITE.erl
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* sverk/allctr-4byte-align-bug:
erts: Fix alignment bug in allocator start code
OTP-11496
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Also fix testcase that failed due to main carrier creation failure.
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* rickard/acul-bug/OTP-11456:
Ensure carrier pool only accessed by schedulers
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Bug never released.
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The switch "+Musac <boolean>" controls if sys_alloc carriers
are allowed.
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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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* Coalescing and trimming of free segments in supercarrier
* Management of super aligned and super unaligned areas in
supercarrier
* Management of reservation of physical memory
* erts_mseg usage of erts_mmap
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Introduce unconditional ERTS_ASSERT
and use that for both ASSERT and ASSERT_EXPR.
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rickard/aligned-sys_alloc-carriers_maint/OTP-11318
Conflicts:
erts/emulator/beam/erl_alloc.c
erts/emulator/beam/erl_alloc_util.c
erts/emulator/beam/erl_alloc_util.h
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erts_sys_aligned_alloc() is currently implemented using posix_memalign if
it exist, or using _aligned_malloc on Windows.
If erts_sys_aligned_alloc() exist allocators will create sys_alloc
carriers similar to how this was done pre-R16.
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That is, include information about carrier pool in result returned from
erlang:system_info({allocator,allocator_sizes, _}).
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A cleanup after SBMBC was removed.
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by putting blocks from different carrier into separate search trees.
Carriers are currently organized in a naive linked list by address order.
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This is a modified partial revert of 2ab1d972f6fd37c17b05
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* sverk/win64-fixes:
erts: Change some more 'long' to pointer sized int (ErlDrvUInt)
erts: Fix crash in nif_SUITE for win64
erts: Fix assert in isdigit for negative characters
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Some query functions in erl_alloc_util.c lock the allocator mutex
and then use erts_printf that in turn may call the sys allocator
through the wrappers. To avoid breaking locking order these
query functions first "pre-locks" all allocator wrappers.
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Make sure each fix allocator type always allocate the right fixed size.
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to replace macro constant ERTS_ALCU_DD_FIX_TYPE_OFFS.
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* sverk/r16/utf8-atoms:
erl_interface: Fix bug when transcoding atoms from and to UTF8
erl_interface: Changed erlang_char_encoding interface
erts: Testcase doing unicode atom printout with ~w
erl_interface: even more utf8 atom stuff
erts: Fix bug in analyze_utf8 causing faulty latin1 detection
Add UTF-8 node name support for epmd
workaround...
Fix merge conflict with hasse
UTF-8 atom documentation
test case
erl_interface: utf8 atoms continued
Add utf8 atom distribution test cases
atom fixes for NIFs and atom_to_binary
UTF-8 support for distribution
Implement UTF-8 atom support for jinterface
erl_interface: Enable decode of unicode atoms
stdlib: Fix printing of unicode atoms
erts: Change internal representation of atoms to utf8
erts: Refactor rename DFLAG(S)_INTERNAL_TAGS for conformity
Conflicts:
erts/emulator/beam/io.c
OTP-10753
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with either MBC_ABLK_SZ or MBC_FBLK_SZ in all cases when we already know
what kind of block it is.
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A block larger than sbc_threshold can be allocated in MBC if the subsequent
"residue block" is smaller than min_block_size.
Solved by lowering sbc_threshold to ("hard limit" - min_block_size).
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No allocator strategy is using customized carrier headers anyway.
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To get a consistent naming scheme where
FBLK = Free block
ABLK = Allocated block
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by making use of the new block header scheme to find the carrier header
and thereby the allocator.
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Make use of type FreeBlkFtr_t
Rename GET_MB_CARRIER into BLK2MBC (like BLK2SBC)
Remove some unused macros
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to allow realloc to determine block size (in MBC or SBC)
without having to read the footer of the previous block
that might be written to by concurrent thread.
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