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2016-05-24Merge branch 'egil/erts/fix-purge_code-literals'Björn-Egil Dahlberg
* egil/erts/fix-purge_code-literals: erts: Refactor ERTS_MSG_COMBINED_HFRAG to heap fragment erts: Copy literals in messages on module purge erts: Add testcase for purge of literals
2016-05-20erts: Refactor ERTS_MSG_COMBINED_HFRAG to heap fragmentBjörn-Egil Dahlberg
2016-05-20erts: Copy literals in messages on module purgeBjörn-Egil Dahlberg
During check process code, explicitly copy all referenced literals in a message (in the private queue) to a heap fragment and attach it to the message reference. Not all types of message communication does an explicit copy of a literal and this needs to be taken care of before a module is purged.
2016-05-20erts: Add testcase for purge of literalsBjörn-Egil Dahlberg
Specifically t_copy_literals_frags/1 tries to test literals in message heap fragments.
2016-05-20erts: Check for carrier capability specifically in testBjörn-Egil Dahlberg
2016-05-18Merge branch 'bjorn/erts/cuddle-with-tests'Björn Gustavsson
* bjorn/erts/cuddle-with-tests: time_SUITE: Make consistency/1 work in any timezone
2016-05-17Merge branch 'sverker/hipe-amd64-code-alloc/OTP-13359'Sverker Eriksson
This merge is actually only some left overs. The bulk work for hipe-amd64-code-alloc has already been merge (without ticket number) at 42a1166b47721cd444.
2016-05-17Merge branch 'mikpe/otp-19-erts-integer-truncation-bugs/PR-1045/OTP-13606'Lukas Larsson
* mikpe/otp-19-erts-integer-truncation-bugs/PR-1045/OTP-13606: erl_unicode.c: fix integer truncation problems do not limit heap fragments to 4 giga-words erts_new_mso_binary(): do not truncate len Conflicts: erts/emulator/beam/erl_nif.c
2016-05-17erts: Move max_heap_size field so that ErLLVM works againLukas Larsson
2016-05-17erts: Fix OpenBSD gcc compiler bug in re codeLukas Larsson
The OpenBSD 5.8 gcc compiler emits erroneous code which results in the re:run function behaving badly, though strangely enough it does not segfault the vm. This fix moves code around a bit in order to make gcc emit correct code.
2016-05-17erts: Fix bug when tracing in non-smp non-scheduler threadLukas Larsson
2016-05-13Merge branch 'egil/erts/nif-format_term/OTP-13580'Björn-Egil Dahlberg
* egil/erts/nif-format_term/OTP-13580: runtime_tools: Change erts_snprintf to enif_snprintf erts: Document enif_snprintf erts: Add tests for enif_snprintf erts: Add enif_snprintf Conflicts: erts/emulator/beam/erl_nif_api_funcs.h
2016-05-12erts: Remove compiler warningSverker Eriksson
'hx' may be used uninitialized
2016-05-12time_SUITE: Make consistency/1 work in any timezoneBjörn Gustavsson
time_SUITE:consistency/1 would only work in CET, which was reasonable when the test suites were always run in Stockholm. Nowadays it is expected that you can run the test suite in any timezone. Therefore, only make sure that that difference between localtime/1 and universaltime/1 is "reasonable".
2016-05-11erts: Add tests for enif_snprintfBjörn-Egil Dahlberg
2016-05-11Merge branch 'lukas/trace-fix'Rickard Green
* lukas/trace-fix: erts: Only allow remove from trace_status callback
2016-05-11Merge branch 'rickard/ds-proc-exit/OTP-13123'Rickard Green
* rickard/ds-proc-exit/OTP-13123: Add dirty_heap_access test case Add dirty_call_while_terminated test case Move dirty nif test cases into dirty_nif_SUITE Add better support for communication with a process executing dirty NIF Remove conditional dirty schedulers API
2016-05-11erts: Only allow remove from trace_status callbackLukas Larsson
Make it so that it is only possible to remove a tracer via returning remove from an erl_tracer. This limition is put in place in order to avoid a lot of lock checking and taking in various places, especially in regards to trace events happening on dirty schedulers.
2016-05-11Add dirty_heap_access test caseRickard Green
2016-05-11Add dirty_call_while_terminated test caseRickard Green
2016-05-11Move dirty nif test cases into dirty_nif_SUITERickard Green
2016-05-11Add better support for communication with a process executing dirty NIFRickard Green
- Termination of a process... - Modify trace flags of process... - Process info on process... - Register/unregister of name on process... - Set group leader on process... ... while it is executing a dirty NIF.
2016-05-11erts: Add enif_snprintfBjörn-Egil Dahlberg
* Add the capability to format erlang terms to a char buffer in nifs. * Bump NIF version to 2.11
2016-05-11erts: Fix non-smp max_heap_size assertLukas Larsson
2016-05-11erts: Add max_heap_size remote gc testcaseLukas Larsson
2016-05-10Remove conditional dirty schedulers APIRickard Green
2016-05-10erts: Skip alloc_SUITE:erts_mmap if ERL_ZFLAGSSverker Eriksson
contains flags for super carrier +MMsc*
2016-05-10erts: Fix max heap size exit when in hipe modeLukas Larsson
2016-05-10erts: Fix pre-bif yield current_functionLukas Larsson
2016-05-10erts: Implement max_heap_size process flagLukas Larsson
The max_heap_size process flag can be used to limit the growth of a process heap by killing it before it becomes too large to handle. It is possible to set the maximum using the `erl +hmax` option, `system_flag(max_heap_size, ...)`, `spawn_opt(Fun, [{max_heap_size, ...}])` and `process_flag(max_heap_size, ...)`. It is possible to configure the behaviour of the process when the maximum heap size is reached. The process may be sent an untrappable exit signal with reason kill and/or send an error_logger message with details on the process state. A new trace event called gc_max_heap_size is also triggered for the garbage_collection trace flag when the heap grows larger than the configured size. If kill and error_logger are disabled, it is still possible to see that the maximum has been reached by doing garbage collection tracing on the process. The heap size is defined as the sum of the heap memory that the process is currently using. This includes all generational heaps, the stack, any messages that are considered to be part of the heap and any extra memory the garbage collector may need during collection. In the current implementation this means that when a process is set using on_heap message queue data mode, the messages that are in the internal message queue are counted towards this value. For off_heap, only matched messages count towards the size of the heap. For mixed, it depends on race conditions within the VM whether a message is part of the heap or not. Below is an example run of the new behaviour: Eshell V8.0 (abort with ^G) 1> f(P),P = spawn_opt(fun() -> receive ok -> ok end end, [{max_heap_size, 512}]). <0.60.0> 2> erlang:trace(P, true, [garbage_collection, procs]). 1 3> [P ! lists:duplicate(M,M) || M <- lists:seq(1,15)],ok. ok 4> =ERROR REPORT==== 26-Apr-2016::16:25:10 === Process: <0.60.0> Context: maximum heap size reached Max heap size: 512 Total heap size: 723 Kill: true Error Logger: true GC Info: [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}] flush(). Shell got {trace,<0.60.0>,gc_start, [{old_heap_block_size,0}, {heap_block_size,233}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,gc_max_heap_size, [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,exit,killed}
2016-05-09Merge branch 'sverker/system_info-erts_mmap/OTP-13560'Sverker Eriksson
2016-05-09Merge branch 'sverker/trace-send-receive-matchspec/OTP-13507'Sverker Eriksson
2016-05-05erl_unicode.c: fix integer truncation problemsMikael Pettersson
- use Sint for 'left' and Uint for 'pos' - cost_to_proc(): adjust types, remove unused return value - copy_utf8_bin(): return Uint - characters_to_utf8_trap(): remove harmful cast - unicode_characters_to_binary_2(): correct types in debug code - erts_convert_filename_to_encoding(): remove useless cast
2016-05-05do not limit heap fragments to 4 giga-wordsMikael Pettersson
- struct erl_heap_fragment: use Uint for sizes - erl_nif.c: use size_t for sizes - erts_heap_frag_shrink(): remove now redundant cast
2016-05-05erts_new_mso_binary(): do not truncate lenMikael Pettersson
2016-05-04erts: Show exec_alloc as disabled when not usedSverker Eriksson
2016-05-04erts: Refactor ERTS_ALC_INFO_A_* constantsSverker Eriksson
as an enum and replace _MAX with _END
2016-05-04erts: Add send and 'receive' to trace_info/2Sverker Eriksson
to obtain match specs
2016-05-04erts: Fix bug in trace_pattern for 'on_load'Sverker Eriksson
'on_load' is a call trace.
2016-05-04erts: Fix PAM to be callable from non-scheduler threadSverker Eriksson
also simplified the interface to to run PAM from trace
2016-05-04erts: Change receive matchspec to [NodeOrOther, Pid, Msg]Sverker Eriksson
2016-05-04erts: Add Sender in 'receive' trace matchspecSverker Eriksson
All 'EXIT' and monitor messages are sent from 'system' Timeouts are "sent" from 'clock_service'
2016-05-04erts: Add matchspec restrictions for 'receive' traceSverker Eriksson
and non-call-trace. This is the easy way out to avoid difficult locking scenarios when accessing tracing flags on another process.
2016-05-04erts: Add matchspec to 'receive' traceSverker Eriksson
2016-05-04erts: Remove multi scheduler blocking in match specsSverker Eriksson
for enable_trace and disable_trace operations. Instead seize needed locks while updating trace flags.
2016-05-04erts: Add match spec for send traceSverker Eriksson
2016-05-04erts: Rename constants in enum erts_break_opSverker Eriksson
with uppercase for constants and why not call them 'RESTART' and 'PAUSE' as the API.
2016-05-04erts: Rename struct typeSverker Eriksson
as is trips up my editor symbol tagging.
2016-05-04erts: Beautify some code with container_of macroSverker Eriksson
2016-05-04erts: Add macro HAVE_ERTS_MMAPSverker Eriksson
and make erts_mmap unavailable at compile time if not supported.
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