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2018-10-29Refactor releasing of literalsBjörn Gustavsson
Introudce erts_queue_release_literals() to queue a literal area to be released.
2018-10-24Extend the sharing-preserving routines to optionally copy literalsBjörn Gustavsson
In the implementation of the zero-copying term storage, we want to preserve sharing, but not copy literals because the modules holding the literals could be unloaded under our feet.
2018-10-24Merge pull request #1991 from bjorng/bjorn/erts/fix-max_heap_size/OTP-15360Björn Gustavsson
Honor the max heap size when copying literals after purging
2018-10-22Merge branch 'raimo/tcp-close-while-send/maint/ERL-561/OTP-12242' into maintRaimo Niskanen
* raimo/tcp-close-while-send/maint/ERL-561/OTP-12242: Write test case Fix hanging gen_tcp send vs close race Conflicts: erts/preloaded/ebin/prim_inet.beam
2018-10-19Fix hanging gen_tcp send vs close raceRaimo Niskanen
While a gen_tcp send was in progress with filled buffers and slow receiver a close (from another process) would place the port in a half dead state so the port could not signal back to send, that waited for confirmation. The solution is to after some time (5 s) of waiting for send confirmation set a monitor on the port, which detects if the port becomes half dead due to close from another process. The close pending loop has also been improved to use the linger timeout for waiting, and to set a system timeout (arbitrarily selected 3 min) to not wait forever when the other end reads data s l o w l y (tarpitting, kind of).
2018-10-19Honor the max heap size when copying literals after purgingBjörn Gustavsson
When a module has been purged from memory, any literals belonging to that module will be copied to all processes that hold references to them. The max heap size limit would be ignored in the garbage collection initiated when copying literals to a process. If the max heap size was exceeded, the process would typically be terminated in the following garbage collection. Since the process would be killed anyway later, kill the process before copying a literal that would make it exceed its max heap size. While at it, also fix a potential bug in `erlang:garbage_collect/0`. If it was found that the max heap sized had been exceeded while executing `erlang:garbage_collect/0`, the process would enter a kind of zombie state instead of being properly terminated.
2018-10-18Merge branch 'maint-20' into maintHans Nilsson
* maint-20: Updated OTP version Prepare release
2018-10-17Merge branch 'sverker/erts/debug_free_null' into maintSverker Eriksson
* sverker/erts/debug_free_null: erts: Fix bug in debug_free for NULL pointer
2018-10-17Merge branch 'igor/tcp-nopush-ERL-698/OTP-15357' into maintJohn Högberg
* igor/tcp-nopush-ERL-698/OTP-15357: "cork" tcp socket around file:sendfile Add nopush TCP socket option
2018-10-16Prepare releaseErlang/OTP
2018-10-16Merge branch 'sverker/erts/ets-select_replace-bug/OTP-15346' into maint-20Erlang/OTP
* sverker/erts/ets-select_replace-bug/OTP-15346: erts: Fix bug in ets:select_replace for bound key
2018-10-15erts: Fix bug in debug_free for NULL pointerSverker Eriksson
causing ASSERT in sys_memset to fail.
2018-10-12Merge branch 'maint-21' into maintRickard Green
* maint-21: Updated OTP version Prepare release erts: Fix UNC path handling on Windows erts: Fix a compiler warning eldap: Fix race at socket close Fix bug for sockopt pktoptions on BSD erts: Fix memory leak on file read errors
2018-10-12Prepare releaseErlang/OTP
2018-10-12Merge branch 'john/erts/fix-unc-paths-windows/OTP-15333/ERL-737' into maint-21Erlang/OTP
* john/erts/fix-unc-paths-windows/OTP-15333/ERL-737: erts: Fix UNC path handling on Windows erts: Fix a compiler warning
2018-10-12Merge branch 'raimo/BSD-sockopt-pktoptions/ERIERL-187/OTP-14297' into maint-21Erlang/OTP
* raimo/BSD-sockopt-pktoptions/ERIERL-187/OTP-14297: Fix bug for sockopt pktoptions on BSD
2018-10-12Merge pull request #1974 from ↵Raimo Niskanen
RaimoNiskanen/raimo/getifaddrs-netns/ERIERL-189/OTP-15121 Implement {netns,NS} option for inet:getifaddrs/1 and friends
2018-10-11"cork" tcp socket around file:sendfileIgor Slepchin
This fixes 200ms delay on the last TCP segment when using file:sendfile/2 on Linux (ERL-698).
2018-10-11Merge branch 'maint-17' into maintRickard Green
* maint-17: Updated OTP version Prepare release
2018-10-11Prepare releaseErlang/OTP
2018-10-11Merge branch 'sverker/r16/binary_to_atom-utf8-crash/ERL-474/OTP-14590' into ↵Erlang/OTP
maint-17 * sverker/r16/binary_to_atom-utf8-crash/ERL-474/OTP-14590: erts: Fix crash in binary_to_atom/term for invalid utf8
2018-10-11Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maint-17Erlang/OTP
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2018-10-11Merge branch 'sverker/bin2term-zlib-bug/ERL-340/OTP-14159' into maint-17Erlang/OTP
* sverker/bin2term-zlib-bug/ERL-340/OTP-14159: erts: Fix binary_to_term for compressed and zlib >= v1.2.9
2018-10-11Merge branch 'rickard/thr-prgr-unmanaged-delay-bug/OTP-13869' into maint-17Erlang/OTP
* rickard/thr-prgr-unmanaged-delay-bug/OTP-13869: Fix erts_thr_progress_unmanaged_delay()
2018-10-11Merge branch 'rickard/drv-send-term-thr-bug/OTP-13866' into maint-17Erlang/OTP
* rickard/drv-send-term-thr-bug/OTP-13866: Fix thread calls to erl_drv_send_term()/erl_drv_output_term()
2018-10-11Merge branch 'rickard/port-sig-dropped-fix/OTP-13424' into maint-17Erlang/OTP
* rickard/port-sig-dropped-fix/OTP-13424: Fix implementation of dropped signal to port
2018-10-11erts: Fix UNC path handling on WindowsJohn Högberg
This is unlikely to be the last of the path problems seen after OTP 21, and I'm starting to regret my decision to unconditionally use long paths. The idea to hit all long-path problems all the time was good in theory as it makes such bugs far more visible, but there just aren't enough people who test pre-release versions on Windows, making this the world's slowest game of whack-a-mole.
2018-10-11erts: Fix a compiler warningJohn Högberg
This would've been a bug if the value was used.
2018-10-11Add nopush TCP socket optionIgor Slepchin
This translates to TCP_CORK on Linux and TCP_NOPUSH on BSD. In effect, this acts as super-Nagle: no partial TCP segments are sent out until this option is turned off. Once turned off, all accumulated unsent data is sent out immediately. The latter is *not* the case on OSX, hence the implementation ignores "nopush" on OSX to reduce confusion.
2018-10-09Merge branch 'sverker/erts/ets-select_replace-bug/OTP-15346' into maintSverker Eriksson
* sverker/erts/ets-select_replace-bug/OTP-15346: erts: Fix bug in ets:select_replace for bound key
2018-10-09erts: Fix bug in ets:select_replace for bound keySverker Eriksson
which may cause following calls to ets:next or ets:prev to fail.
2018-10-04Merge PR-1962 from gomoripeti/ms_bit_size OTP-15343Sverker Eriksson
Document bit_size in match-specs and allow in fun2ms
2018-10-02Implement {netns,NS} option for inet:getifaddrs/1Raimo Niskanen
Also implement the same option for the legacy undocumented functions inet:getif/1,getiflist/1,ifget/2,ifset/2. The arity 1 functions had before this change got signatures that took a socket port that was used to do the needed syscall, so now the signature was extended to also take an option list with the only supported option {netns,Namespace}. The Socket argument variant remains unsupported. For inet:getifaddrs/1 the documentation file was changed to old style function name definition so be able to hide the Socket argument variant that is visible in the type spec. The arity 2 functions had got an option list as second argument. This list had to be partitioned into one list for the namespace option(s) and the other for the rest. The namespace option list was then fed to the already existing namespace support for socket opening, which places the socket in a namespace and hence made all these functions that in inet_drv.c used getsockopt() work without change. The functions that used getifaddrs() in inet_drv.c had to be changed in inet_drv.c to swap namespaces around the getifaddrs() syscall. This functionality was separated into a new function call_getifaddrs().
2018-10-01Fix spelling of intended in erl_nif docsLukas Larsson
2018-10-01Fix bug for sockopt pktoptions on BSDRaimo Niskanen
The macros for the BSD style option names had accidentally wound up outside the option parsing loop, causing unclear behaviour and Valgrind errors.
2018-09-26erts: Fix memory leak on file read errorsJohn Högberg
2018-09-25Document bit_size in match-specs and allow in fun2msPéter Gömöri
It is already allowed in match-specs.
2018-09-24Prepare releaseErlang/OTP
2018-09-21Update copyright yearHenrik Nord
2018-09-20Merge branch 'maint-19' into maintSverker Eriksson
* maint-19: Updated OTP version Update release notes Update version numbers erts: Fix memory leak when sending to terminating port
2018-09-19Update release notesErlang/OTP
2018-09-19Update version numbersErlang/OTP
2018-09-19erts: Fix memory leak when sending to terminating portSverker Eriksson
Cherry-picked from 7c5fcd3f2701cbb614930682ac52ff75b9c26e6c. Error: Leak_DefinitelyLost erts_alloc:230 (-> 0x52E54D) [erl_alloc.h] port_task_alloc:154 (-> 0x52F3CA) [erl_port_task.c] erts_port_task_alloc_p2p_sig_data:212 (-> 0x52F5D3) [erl_port_task.c] erts_port_output:2147 (-> 0x4F6057) [io.c] erts_port_command:4126 (-> 0x4FA10E) [io.c] do_send:2200 (-> 0x4E4C64) [bif.c] erl_send:2494 (-> 0x4E5E09) [bif.c] process_main:1730 (-> 0x43ADA5) [beam_emu.c]
2018-09-19Merge branch 'raimo/receive-TOS-TCLASS/ERIERL-187/OTP-15145' into maintRaimo Niskanen
* raimo/receive-TOS-TCLASS/ERIERL-187/OTP-15145: Elaborate the disclaimer for 'pktoptions' Improve platform filter Fix endianness bug for CMSG parsing
2018-09-19Fix endianness bug for CMSG parsingRaimo Niskanen
2018-09-18Merge branch 'sverker/erts/robustify-dist-entry-states/OTP-15297' into maintSverker Eriksson
* sverker/erts/robustify-dist-entry-states/OTP-15297: erts: Refactor port dist_entry & conn_id into PRTSD Remove ugly fail case macros Consolidate distribution entry state transitions erts: Fix bug in undocumented system_flag(scheduling_statistics)
2018-09-18Merge 'sverker/erts/fix-aborted-pending-connection-race/OTP-15296'Sverker Eriksson
2018-09-18erts: Refactor port dist_entry & conn_id into PRTSDSverker Eriksson
spelled out as "port specific data".
2018-09-18Remove ugly fail case macrosSverker Eriksson
2018-09-18Consolidate distribution entry state transitionsSverker Eriksson
* Make connection_id part of the distribution handle as {ConnId, DistEntry} in order for BIFs to verify correct connection. * Make distribution handle opaque to net_kernel. * Remove some unsafe lockless reads of DistEntry.flags * Change state ERTS_DE_STATE_EXITING to be more of an internal state that prevents erts from enqueue, encode or schedule new data to be sent. Otherwise it should behave like ERTS_DE_STATE_CONNECTED.
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