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* josevalim/set_cwd-typespec:
Correct file:set_cwd/1 typespec
OTP-11787
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This is just a preparation to allow detection of older nodes
that do not understand maps (R16 and older).
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file:set_cwd/1 accepts binaries as arguments, however the binaries
must be properly encoded as per file:native_name_encoding/0.
Also update the note under no_translation error to refer that passing
a ISO-latin-1 encoded binary under any unicode file name encoding.
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The loader of native code tries to avoid race condition by bringing
down the system to a single scheduler. Unfortunately, that will not
completely avoid race conditions beacuse other processes may still
run while the code is being loaded. Therefore, we must still make
sure that native code has been fully fixed up before it can be
executed.
Under unlucky circumstances, it was possible for the global name
register process to call a fun in native code before the native
code for the fun had been fully fixed up. The run-time system
would crash when running the not-fully-fixed-up code.
Here is a way to make the bug 100% reproducible. First add this
function to the 'global' module:
silly_looper(List) ->
lists:foreach(fun(E) -> put(any_atom, E) end, List),
silly_looper(List).
Then insert the following code at the beginning of the init/1
function in the 'global' module:
spawn_link(fun() -> silly_looper(lists:seq(1, 100)) end),
The run-time system will crash during start up when the native
code for the 'global' module is being loaded. What will happen
is that lists:foreach/2 (which runs in native code) will call
the native code for the fun in silly_looper/1 before the reference
to 'any_atom' has been changed from a 0 to the proper tagged
atom value. The put/2 BIF will exit when attempting to calculate
the hash value for the illegal value 0 (it is not properly tagged).
To eliminate this race condition, we must delay patching the
native code addresses for a fun into the fun entry until the native
code has been fully fixed up. We will use the new BIFs introduced
in the previous commit.
While we are at it, we will also make sure that we erase any
temporary variables in the process dictionary used by the
hipe_unified_loader module.
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This commit is a preparation for eliminating a race condition
loading the native code for modules whose BEAM code has already
been loaded. Here we introduce two new BIFs so that looking up
a fun entry is separate from setting the native address in the
fun entry.
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* lukas/ose/master/OTP-11334: (71 commits)
erts: Fix unix efile assert
ose: Use -O2 when building
ose: Expand OSE docs
ose: Add dummy ttsl driver
ose: Cleanup cleanup of mutex selection defines
ose: Polish mmap configure checks
ose: Add ose specific x-compile flags
ose: Updating fd_driver and spawn_driver for OSE
ose: Updating event and signal API for OSE
ose: Cleanup of mutex selection defines
win32: Compile erl_log.exe
ose: Remove uneccesary define
ose: Fix ssl configure test for osx
erts: Fix sys_msg_dispatcher assert
ose: Fix broken doc links
ose: Thread priorities configurable from lmconf
ose: Yielding the cpu is done "the OSE" way
ose: Start using ppdata for tse key
ose: Do not use spinlocks on OSE
ose: Fix support for crypto
...
Conflicts:
lib/crypto/c_src/crypto.c
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Create an specific OSE application that mainly contains documentation
around the OSE specific part of Erlang/OTP.
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The interface of this module is made to be as generic as possible
in order for other IPC mechanisms to mimic it and allow porting of
code between different os:es.
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* siri/master-cuddle-with-tests:
Use default timetrap (30 min) for kernel, stdlib and sasl app tests
Unload 'deadlock' application in application_SUITE:shutdown_deadlock
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The types array(), dict(), digraph(), gb_set(), gb_tree(), queue(),
set(), and tid() have been deprecated. They will be removed in OTP 18.0.
Instead the types array:array(), dict:dict(), digraph:graph(),
gb_set:set(), gb_tree:tree(), queue:queue(), sets:set(), and ets:tid()
can be used. (Note: it has always been necessary to use ets:tid().)
It is allowed in OTP 17.0 to locally re-define the types array(), dict(),
and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1, gb_trees:tree/2,
queue:queue/1, and sets:set/1 have been added.
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These tests start new nodes, and they frequently timed out on some
slow test hosts.
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This is just to clean up properly after the test case. If not,
code_SUITE:bit_boot_embedded might fail since it tries to include the
'deadlock' application in the boot file and fails when running
systools:make_script.
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* hb/kernel/spec_bug_fix/OTP-11730:
Correct the contract of inet:ntoa/1
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* siri/appup_tests_17/OTP-11534:
Update sasl/test/test_lib.hrl with recent versions of kernel and stdlib
Update appups and appup tests for kernel, stdlib and sasl
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Thanks to Max Treskin.
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Could happen if get_child was called during terminate.
io (since it is a group_leader) also causes problems after
get_child was called.
Split up and do it async.
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* josevalim/jv-persistent-set-env:
Allow persistent option on set_env/4 and unset_env/3
OTP-11708
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Appups now only support one major release back, and the tests are
updated accordingly.
Support is also added in tests for giving previous releases in a ct
config file, e.g.
{otp_releases,[{r15,"/path/to/r15/bin/erl"},
{r16,"/path/to/r16/bin/erl"},
{'17',"/path/to/17/bin/erl"}]}.
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An environment key set with the persistent option will not
be overridden by the ones configured in the application resource
file on load. This means persistent values will stick after the
application is loaded and also on application reload.
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* bjorn/fna-default/OTP-11612:
Change the default file name encoding mode to +fnaw
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* lukas/erts/sendfile_no_async_pool/OTP-11639:
erts/kernel: sendfile no longer uses async threads
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* siri/appup_tests_17/OTP-11534:
Update sasl appup test to work for OTP release 17
Update stdlib appup test to work for OTP release 17
Update kernel appup test to work for OTP release 17
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* lukas/erts/sendfile_passive_mode_fix/OTP-11614:
erts: fix bug when using passive mode and sendfile
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The bug incorrectly issued driver_select when un-ignoring an fd
for a socket in passive mode, which caused an incorrect error
tuple to be returned when the remote end closed the connection.
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This has been done because a slow client attack is possible if the
async thread pool is used. The scenario is:
Client does a request for a file and then slowly receives the file one
byte at a time. This will eventually fill the async thread pool with blocking
sendfile operations and thus starving the vm of all file operations.
If you still want to use the async threads pool for sendfile an option to
enable it has been introduced.
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* bjorn/erts/zlib-1.2.8:
configure: Prefer the system's zlib over own our zlib source
Update preloaded modules
Add the 'rle' zstrategy
Don't make gzio.c dependent on the zutil.h header file
Update zlib to 1.2.8
erts/zlib: Remove unused file example.c
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re needs unicode option
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* rickard/otp-17-vsn:
Update versions of OTP, erts, kernel, and stdlib
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The R16B03 release
Conflicts:
lib/sasl/vsn.mk
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Update versions of OTP, erts, kernel, and stdlib to comply with
the new version scheme decided by the OTP technical board.
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* rickard/garbage_collect/OTP-11388:
Parallel check_process_code when code_server purge a module
Functionality for disabling garbage collection
Use asynchronous check_process_code in code_parallel_SUITE
Execution of system tasks in context of another process
Conflicts:
bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_internal.beam
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* sv/file-osync/OTP-11498:
Add sync option to file:open/2
Conflicts:
erts/preloaded/ebin/prim_file.beam
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Commontest doesn't like arity 0 function with same name as test case.
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Conflicts:
erts/preloaded/ebin/prim_inet.beam
lib/kernel/test/gen_sctp_SUITE.erl
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When the code_server is about to purge a module it will now issue
asynchronous check_process_code requests to all processes at once
instead of one at a time. These check_process_code operation can
execute in parallel.
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