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2016-03-11Replace use of test_server:format/2 with io:format/2Björn-Egil Dahlberg
2016-03-11Eliminate use of test_server:fail/0,1Björn-Egil Dahlberg
2016-03-11Modernize use of timetrapsBjörn-Egil Dahlberg
2016-03-11Merge branch 'vinoski/ds-avoid-lock'Rickard Green
* vinoski/ds-avoid-lock: Skip run queue lock check for dirty schedulers
2016-03-11Merge branch 'rickard/ds-sched-suspend'Rickard Green
* rickard/ds-sched-suspend: Improved scheduler suspend functionality
2016-03-10Improved scheduler suspend functionalityRickard Green
- The calling process is now suspended while synchronizing scheduler suspends via erlang:system_flag(schedulers_online, _) and erlang:system_flag(multi_scheduling, _), instead of blocking the scheduler thread in the BIF call waiting for the operation to synchronize. Besides releasing the scheduler for other work (or immediate suspend) it also makes it possible to abort the operation by killing the process. - erlang:system_flag(schedulers_online, _) now only wait for normal schedulers to complete before it returns. This since it may take a very long time before all dirty schedulers suspends. - erlang:system_flag(multi_scheduling, block_normal|unblock_normal) which only operate on normal schedulers has been introduced. This since there are use cases where suspend of dirty schedulers are not of interest (hipe loader). - erlang:system_flag(multi_scheduling, block) still blocks all dirty schedulers as well as all normal schedulers except one since it is hard to redefine what multi scheduling block means. - The three operations: - changing amount of schedulers online - blocking/unblocking normal multi scheduling - blocking/unblocking full multi scheduling can now be done in parallel. This is important since otherwise a full multi scheduling block would potentially delay the other operations for a very long time.
2016-03-09Merge branch 'maint'Sverker Eriksson
2016-03-09erts: Fix wobbling tests in nif_SUITESverker Eriksson
No point in checking tmp_alloc instance 0 as any non-scheduler thread could race us.
2016-03-08Merge branch 'sverk/literal-alloc-polish'Sverker Eriksson
* sverk/literal-alloc-polish: erts: Add emulator flag +MIscs for literal super carrier size erts: Refactor init of erts_literal_mmapper erts: Make literal_alloc documented and configurable
2016-03-08Merge branch 'sverk/Werror-implicit'Sverker Eriksson
* sverk/Werror-implicit: otp: Add gcc option -Werror=implicit
2016-03-08Merge branch 'maint'Sverker Eriksson
2016-03-08erts: Fix alloc_SUITE:rbtree and migration for win64Sverker Eriksson
One little (unsigned long) left behind.
2016-03-08Merge branch 'maint'Sverker Eriksson
2016-03-08test: do not divide by zeroDan Gudmundsson
2016-03-04erts: Use 'bit string' in The Abstract Format documentHans Bolinder
2016-03-02Merge branch 'maint'Ingela Anderton Andin
2016-03-02Merge branch 'ia/msantos/unsupported-protocols' into maintIngela Anderton Andin
* ia/msantos/unsupported-protocols: Skips any sockets with unsupported protocols.
2016-03-02Skips any sockets with unsupported protocols.Ingela Anderton Andin
Patch from end of PR 864 Fixes problem reported in the PR by jeckersb In this error case, a negative file descriptor is now saved at listensock[i], which leads to a buffer overflow later on at https://github.com/msantos/otp/blob/epmd-IPv6-node-reg2/erts/epmd/src/epmd_srv.c#L498 when calling FD_ISSET(listensock[i],&read_mask). To reproduce this: Completely disable IPv6 with ipv6.disable=1 on the kernel command line Build with fortified code (RHEL/CentOS default): CFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fno-strict-aliasing'
2016-03-02Merge branch 'bjorn/remove-test_server/OTP-12705'Björn Gustavsson
* bjorn/remove-test_server/OTP-12705: Remove multiple inclusion of ct.hrl otp_SUITE: Remove handling of test_server application Correct common_test.app.src
2016-03-01Merge branch 'sverk/master/halt-INT_MIN'Sverker Eriksson
* sverk/master/halt-INT_MIN: erts: Make erlang:halt() accept bignums as Status erts: Change erl_exit into erts_exit kernel: Remove calls to erl_exit
2016-03-01Merge branch 'sverk/halt-INT_MIN' into maintSverker Eriksson
OTP-13251 * sverk/halt-INT_MIN: erts: Make erlang:halt() accept bignums as Status erts: Change erl_exit into erts_exit kernel: Remove calls to erl_exit
2016-03-01Merge branch 'maint'Ingela Anderton Andin
2016-03-01Merge branch 'msantos/epmd-IPv6-node-reg2/PR-864/OTP-13364' into maintIngela Anderton Andin
* msantos/epmd-IPv6-node-reg2/PR-864/OTP-13364: epmd: support IPv6 node registration
2016-02-29Fix build wihtout thread supportRickard Green
2016-02-26Merge branch 'bjorn/multiple-load/OTP-13111'Björn Gustavsson
* bjorn/multiple-load/OTP-13111: code: Add functions that can load multiple modules Refactor post_beam_load handling Simplify and robustify code_server:all_loaded/1 Update preloaded modules Add erl_prim_loader:get_modules/3 Add has_prepared_code_on_load/1 BIF Allow erlang:finish_loading/1 to load more than one module beam_load.c: Add a function to check for an on_load function
2016-02-26otp_SUITE: Remove handling of test_server applicationBjörn Gustavsson
2016-02-25otp: Add gcc option -Werror=implicitSverker Eriksson
to get errors for missing function and variable declarations.
2016-02-25Merge branch 'maint'Björn-Egil Dahlberg
Conflicts: erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_process.c erts/preloaded/ebin/erts_internal.beam
2016-02-25Merge branch 'egil/heart-callback/OTP-13250' into maintBjörn-Egil Dahlberg
2016-02-25Update preloaded modulesBjörn Gustavsson
2016-02-25Add erl_prim_loader:get_modules/3Björn Gustavsson
When we are going to implement functions that can load many modules at once, we don't the erl_prim_loader server to become a bottleneck. Therefore, we need erl_prim_loader:get_modules/3 that can read many BEAM files in parallel. Note that we will not bother making reading from archive files or using the inet loader efficient. That can be done later if it turns out to be important.
2016-02-25Add has_prepared_code_on_load/1 BIFBjörn Gustavsson
2016-02-25Allow erlang:finish_loading/1 to load more than one moduleBjörn Gustavsson
The BIFs prepare_loading/2 and finish_loading/1 have been designed to allow fast loading in parallel of many modules. Because of the complications with on_load functions, the initial implementation of finish_loading/1 only allowed a single element in the list of prepared modules. finish_loading/1 does not suspend other processes, but it must wait for all schedulers to pass a write barrier ("thread progress"). The time for all schedulers to pass the write barrier is highly variable, depending on what kind of code they are executing. Therefore, allowing finish_loading/1 to finish the loading for more than one module before passing the write barrier could potentially be much faster than calling finish_loading/1 multiple times. The test case many/1 run on my computer shows that with "heavy load", finish loading of 100 modules in parallel is almost 50 times faster than loading them sequentially. With "light load", the gain is still almost 10 times. Here follows an actual sample of the output from the test case on my computer (an 2012 iMac): Light load ========== Sequential: 22361 µs Parallel: 2586 µs Ratio: 9 Heavy load ========== Sequential: 254512 µs Parallel: 5246 µs Ratio: 49
2016-02-24Merge branch 'master' into sverk/master/halt-INT_MINSverker Eriksson
2016-02-24erts: Make erlang:halt() accept bignums as StatusSverker Eriksson
Just mask away the high bits to get a more tolerant erlang:halt that behaves the same on 32 and 64 bit architectures.
2016-02-24erts: Change erl_exit into erts_exitSverker Eriksson
This is mostly a pure refactoring. Except for the buggy cases when calling erlang:halt() with a positive integer in the range -(INT_MIN+2) to -INT_MIN that got confused with ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT. Outcome OLD erl_exit(n, ) NEW erts_exit(n, ) ------- ------------------- ------------------------------------------- exit(Status) n = -Status <= 0 n = Status >= 0 crashdump+abort n > 0, ignore n n = ERTS_ERROR_EXIT < 0 The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and ERTS_DUMP_EXIT are the same as before (even though their values have changed).
2016-02-24Merge branch 'maint'Rickard Green
* maint: Do not wait for main lock when looking up process not running
2016-02-24Merge branch 'rickard/proc-not-running/OTP-13365' into maintRickard Green
* rickard/proc-not-running/OTP-13365: Do not wait for main lock when looking up process not running
2016-02-24Merge branch 'maint'Hans Bolinder
* maint: Update preloaded module typos Conflicts: erts/preloaded/ebin/prim_file.beam
2016-02-24Update preloaded moduleHans Bolinder
2016-02-23Do not wait for main lock when looking up process not runningRickard Green
2016-02-23typosSverker Eriksson
2016-02-23erts: Add emulator flag +MIscs for literal super carrier sizeSverker Eriksson
2016-02-23erts: Refactor init of erts_literal_mmapperSverker Eriksson
2016-02-23erts: Make literal_alloc documented and configurableSverker Eriksson
Except it cannot be disabled and cannot be multi-threaded. The bit-vector 'erts_literal_vspace_map' on 32-bit is currently only protected by the literal allocator mutex. We could allow multiple instances on 64-bit (I think), but what would be the point?
2016-02-22Merge branch 'maint'Rickard Green
* maint: Improve cmpxchg8b/cmpxchg16b inline asm Improve cmpxchg8b inline asm configure test
2016-02-22Merge branch 'rickard/dw-cmpxchg-clang/OTP-13336' into maintRickard Green
* rickard/dw-cmpxchg-clang/OTP-13336: Improve cmpxchg8b/cmpxchg16b inline asm
2016-02-22Merge branch 'rickard/gcc5-pic-cmpxchg8b/OTP-13326' into maintRickard Green
* rickard/gcc5-pic-cmpxchg8b/OTP-13326: Improve cmpxchg8b inline asm configure test
2016-02-22Merge branch 'maint'Sverker Eriksson
2016-02-22Merge branch 'sverk/proc-lock-check-fix' into maintSverker Eriksson
* sverk/proc-lock-check-fix: erts: Fix lock checker for process locks
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