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2014-03-12Pass full strings to DTrace probesMichal Ptaszek
Whenever string is passed as an argument to a DTrace probe, its length should be properly computed. Until now in order to get length of the input buffer size_of(char *) was used - which evalutes to 4 or 8 (depending on the architecture). To get a proper length, size_of(DTRACE_CHARBUF_NAME(buffer_name)) should be used.
2013-12-02Compile in_heapfrag() only in debug modeAnthony Ramine
2013-12-02Fix erts_check_off_heap2 assertionAnthony Ramine
The test needs to be false to fail, not true. This was noticed with the following warning, where marking erl_assert_error as non-returning didn't help: beam/erl_gc.c:2772:2: warning: variable 'refc' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] default: ^~~~~~~ beam/erl_gc.c:2775:26: note: uninitialized use occurs here ERTS_CHK_OFFHEAP_ASSERT(refc >= 1); ^~~~ beam/erl_gc.c:2738:11: note: expanded from macro 'ERTS_CHK_OFFHEAP_ASSERT' if (!(EXP)) \ ^ beam/erl_gc.c:2759:18: note: initialize the variable 'refc' to silence this warning erts_aint_t refc; ^ = 0
2013-12-02Properly mark erl_assert_error as non-returningAnthony Ramine
2013-12-02Remove uninitialized use of new_crr in erl_alloc_utilAnthony Ramine
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
2013-11-29Merge branch 'sverk/bit-cmp-bug/OTP-11501' into maintSverker Eriksson
* sverk/bit-cmp-bug/OTP-11501: erts: Fix invalid read when appending binaries during call trace erts: Optimize comparison for bitstrings with byte aligned start erts: Fix invalid read in bitstring comparison
2013-11-28Merge branch 'rickard/port_bifs_fix/OTP-11489' into maintRickard Green
* rickard/port_bifs_fix/OTP-11489: Ensure exit signal due to link precede port BIF return
2013-11-28Merge branch 'lukas/erts/supercarrier_fix/OTP-11149' into maintLukas Larsson
* lukas/erts/supercarrier_fix/OTP-11149: Improve error info when main carrier creation fails Conflicts: erts/emulator/test/alloc_SUITE.erl
2013-11-27Merge branch 'sverk/bin2term-bitstr-bugs/OTP-11479' into maintSverker Eriksson
* sverk/bin2term-bitstr-bugs/OTP-11479: erts: Fix bug in binary_to_term for binaries larger than 2^31 erts: Fix bugs in binary_to_term for invalid bitstrings
2013-11-27Merge branch 'sverk/allctr-4byte-align-bug' into maintSverker Eriksson
* sverk/allctr-4byte-align-bug: erts: Fix alignment bug in allocator start code OTP-11496
2013-11-27erts: Fix invalid read when appending binaries during call traceSverker Eriksson
Found by valgrind. Probably safe on opt-VM due to CHICKEN_PAD.
2013-11-26erts: Optimize comparison for bitstrings with byte aligned startSverker Eriksson
2013-11-26erts: Fix invalid read in bitstring comparisonSverker Eriksson
Valgrind complained that erts_cmp_bits sometimes read one byte too much from bitstrings. The byte was never used and the invalid read is safe in opt-VM due to padding in binary allocation (CHICKED_PAD).
2013-11-26Ensure exit signal due to link precede port BIF returnRickard Green
2013-11-26Merge branch 'maint-r16' into maintRaimo Niskanen
2013-11-25Improve error info when main carrier creation failsLukas Larsson
Also fix testcase that failed due to main carrier creation failure.
2013-11-25Merge branch 'rickard/acul-bug/OTP-11456' into maintRickard Green
* rickard/acul-bug/OTP-11456: Ensure carrier pool only accessed by schedulers
2013-11-25Merge branch 'rickard/supercarrier-fix/OTP-11149' into maintRickard Green
* rickard/supercarrier-fix/OTP-11149: Fix observer retrieval of alloc info Fix documentation of the +MMsco switch Replace the +MMscmgc switch with +MMscrfsd Add switch for disabling sys_alloc carriers Add support for locking mappings to physical memory
2013-11-20erts: Fix alignment bug in allocator start codeSverker Eriksson
Bug never released.
2013-11-20Merge branch 'bjorn/erts/fix-erl_crash_dump/OTP-11450' into maintBjörn Gustavsson
* bjorn/erts/fix-erl_crash_dump/OTP-11450: Fix truncated pointers in erl_crash.dump
2013-11-18erts: Fix bug in binary_to_term for binaries larger than 2^31Sverker Eriksson
2013-11-18erts: Fix bugs in binary_to_term for invalid bitstringsSverker Eriksson
<<131, 77, Len:32, Bits:8, Data/binary>> badarg if Bits > 8 Used to return internally inconsistent bitstring badarg if Len==0 and Bits > 0 Used to return invalid *huge* binary (size = (Uint)-1) badarg if Bits==0 and Len > 0 Used to return valid binary as if Bits was 8
2013-11-18Merge branch 'mhssler/add-os-unsetenv/OTP-11446' into maintFredrik Gustafsson
* mhssler/add-os-unsetenv/OTP-11446: erts: remove ?line macro in testcases Update primary bootstrap Add os:unsetenv/1
2013-11-11Merge branch 'sverk/valgrind-added-leak-check' into maintSverker Eriksson
* sverk/valgrind-added-leak-check: erts: Prevent valgrind from repeating same memory leaks reports
2013-11-09Add os:unsetenv/1Martin Hässler
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.
2013-11-07Implement prim_inet:socknames/1,2 and prim_inet:peernames/1,2Raimo Niskanen
2013-11-05Replace the +MMscmgc switch with +MMscrfsdRickard Green
Replaced the +MMscmgc switch with the +MMscrfsd switch. The old switch didn't reflect what it controlled.
2013-11-05Add switch for disabling sys_alloc carriersRickard Green
The switch "+Musac <boolean>" controls if sys_alloc carriers are allowed.
2013-11-05Add support for locking mappings to physical memoryRickard Green
Using "+Mlpm all" switch all mappings made by the emulator will be locked into physical memory.
2013-11-04Merge branch 'sverk/monitor-memory-leak/OTP-11410' into maintSverker Eriksson
* sverk/monitor-memory-leak/OTP-11410: erts: Fix memory leak for distributed monitors
2013-11-04erts: Prevent valgrind from repeating same memory leaks reportsSverker Eriksson
by using the macro VALGRIND_DO_ADDED_LEAK_CHECK if it exists for system_info({error_checker,memory})
2013-11-01Ensure carrier pool only accessed by schedulersRickard Green
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.
2013-10-30Fix truncated pointers in erl_crash.dumpBjörn Gustavsson
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.
2013-10-21Merge branch 'egil/fix-crashdump-pointer-crash/OTP-11420' into maintBjörn-Egil Dahlberg
* egil/fix-crashdump-pointer-crash/OTP-11420: erts: Fix segfaulting crashdump writing
2013-10-18erts: Fix segfaulting crashdump writingBjörn-Egil Dahlberg
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.
2013-10-17erts: Fix memory leak for distributed monitorsSverker Eriksson
2013-10-15Merge branch 'rickard-sverker/supercarrier/OTP-11149' into maintSverker Eriksson
* 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 ...
2013-10-14Merge branch 'fenollp/treewide_remove_unexpected_0xff/OTP-11323' into maintFredrik Gustafsson
* fenollp/treewide_remove_unexpected_0xff/OTP-11323: Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.
2013-10-10Fix bsr bugLars Hesel Christensen
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.
2013-10-02erts: Add mutex to init_atoms in erts_mmap.cSverker Eriksson
2013-09-30erts: Add erts_mmap statsSverker Eriksson
As part of erlang:system_info({allocator,mseg_alloc}) and erl_crash.dump
2013-09-30erts: Add erts_bld_tupleX macrosSverker Eriksson
for compile time argument checking
2013-09-30erts: Rename erts_bld_atom_uint_2tup_list to *_uword_*Sverker Eriksson
and change from Uint to UWord values
2013-09-30erts: Add HARD_DBG_MSEGSverker Eriksson
2013-09-30erts: Add mmap argument to erts_debug:get_internal_stateSverker Eriksson
2013-09-30erts: Add __func__ to ERTS_ASSERT macroSverker Eriksson
2013-09-30erts: erts_mmap supercarrier management and erts_mseg usageRickard Green
* 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
2013-09-30erts: Prepare erl_mmap with tree structures for free seg storageSverker Eriksson
2013-09-30erts: Remove ASSERT_EXPR macroSverker Eriksson
2013-09-30erts: Refactor the ASSERT macroSverker Eriksson
Introduce unconditional ERTS_ASSERT and use that for both ASSERT and ASSERT_EXPR.
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