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2016-05-31Merge branch 'sverker/bad-hash'Sverker Eriksson
2016-05-27Merge branch 'richcarl/erts/fix-init-stop/PR-911/OTP-13630/OTP-13631'Sverker Eriksson
2016-05-27Merge branch 'rickard/on_heap-fix/OTP-13366'Rickard Green
* rickard/on_heap-fix/OTP-13366: Improve message allocation in enif_send() Fix message queue update on replacement and removal of message
2016-05-27Merge branch 'rickard/rm-mqd-mixed/OTP-13366'Rickard Green
* rickard/rm-mqd-mixed/OTP-13366: Remove the 'message_queue_data' option 'mixed'
2016-05-27erts: Split large binaries into multiple iovecLukas Larsson
On windows the max size of an iov element is long, i.e. 4GB so in order to write larger binaries to file we split the binary into smaller 2GB chunks so that the write is possible.
2016-05-27Merge branch 'lukas/erts/tracing/tracer-move-extra-to-map/OTP-10267'Lukas Larsson
* lukas/erts/tracing/tracer-move-extra-to-map/OTP-10267: runtime_tools: Fix erl_tracer testcases runtime_tools: Fix documentation for dbg:p erts: Move tracer SecondTraceTerm to Opts map
2016-05-26Improve message allocation in enif_send()Rickard Green
2016-05-26Fix message queue update on replacement and removal of messageRickard Green
2016-05-26erts: Add some more use of ErtsContainerStructSverker Eriksson
2016-05-26erts: Tweak ErtsContainerStruct macroSverker Eriksson
with surrounding parenthesis
2016-05-26erts: Improve some bad hash functionsSverker Eriksson
Multiplying two atoms will always yield the same low 6 bits. The most important tabke 'export' was saved by the prime number table size which seemed to yield a decent uniform distribution anyway.
2016-05-25Remove the 'message_queue_data' option 'mixed'Rickard Green
2016-05-25erts: Make erlang:halt/2 truncate string argSverker Eriksson
if too long.
2016-05-25erts: Implement halt/0 and halt/1 in ErlangSverker Eriksson
just to make things simpler.
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
2016-05-24erts: Move tracer SecondTraceTerm to Opts mapLukas Larsson
The extra trace data has been moved to the opts map in order for the tracer to be able to distinguish inbetween extra trace data 'undefined' and no extra trace data. In the same commit all opts associations have been changed so that if the tracer should not use them, the key is left unassicated instead of being sent to undefined. This should be give a small performance gain and also makes the API easier to work with.
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.
2016-05-17Merge 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
2016-05-11Merge 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 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
2016-05-10Remove conditional dirty schedulers APIRickard Green
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