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2010-11-09Delete decommented codeRaimo Niskanen
2010-11-09Implement inet:getifaddrs/0 on WindowsRaimo Niskanen
2010-11-09Implement basic inet:getifaddrs/0Raimo Niskanen
2010-11-09Fix building error of SCTP in FreeBSD 7.1 and laterKenji Rikitake
This patch fixes building error of SCTP in FreeBSD 7.1 and later. See http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1257:200904:hppnfialjjdlgecdiehe for the details. R13A patch for solving a compilation error when building erts/emulator/drivers/common/inet_drv.c by Kenji Rikitake 12-APR-2009 Symptom solved by this patch: When building R13A in FreeBSD 7.1-RELEASE, the compiler flag HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_SACKDELAY is NOT enabled. Some code in erts/emulator/drivers/common/inet_drv.c incorrectly assumes HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_SACKDELAY is always true when HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_FLAGS is true in config.h. This assumption causes a compilation error.
2010-11-02Add flag-based setting for the distribution buffer busy limitScott Lystig Fritchie
Id: OTP-8912 This patch creates a new family of flags with the "+z" prefix. It further creates a new configuration option called "dbbl" (which is the first letter of the name dist_buf_busy_limit). Example usage of this flag would be "+zdbbl 1048576". This patch creates an adjustable buffer limit for the amount of data that may be buffered by the erlang distribution code (in dist.c specifically). Before this patch, this hard-coded constant was used: #define ERTS_DE_BUSY_LIMIT (128*1024) When large binaries are transmitted between nodes (or simply a lot of medium-sized binaries), it is very easy to hit the old 128KB limit. Processes that use the erlang:system_monitor() BIF to monitor system events can be spammed by {monitor, busy_dist_port, ...} message tuples at rates of tens to even hundreds of messages/second. A larger buffer limit will allow processes to buffer more outgoing messages over the distribution. When the buffer limit has been reached, sending processes will be suspended until the buffer size has shrunk. The buffer limit is per distribution channel. A higher limit will give lower latency and higher throughput at the expense of higher memory usage. A variation of this patch has been in commercial production use in at least two companies that the author is aware of. Larger buffer values can reduce the number of {monitor, busy_dist_port, ...} system messages drastically, lower overall messaging latencies, and prevent false timeouts and 'nodedown' messages in extremely busy Mnesia systems. Test suite: there are two tests: a. In erlexec_SUITE.erl to test basic set & get of the value b. In distribution_SUITE.erl, to verify that setting +zdbbl very low will actually change behavior.
2010-10-08Merge branch 'rickard/halfword-bug' into devRickard Green
* rickard/halfword-bug: Fix newly introduced halfword emulator bugs
2010-10-07Fix newly introduced halfword emulator bugsRickard Green
2010-10-04Merge branch 'mp/fix-hipe-write' into devBjörn Gustavsson
* mp/fix-hipe-write: fix 64-bit writes to 32-bit struct field in HiPE runtime OTP-8877
2010-10-01emulator Makefile: Add missing dependencyBjörn Gustavsson
Make sure that an update to erts/emulator/tools/make_tables will force all generated files to be re-generated.
2010-09-30Fix a bug in the ERTS_BIF_PREP_TRAPx() macrosBjörn Gustavsson
It seems to work (at least on a little-endian architecture) by sheer luck.
2010-09-30fix 64-bit writes to 32-bit struct field in HiPE runtimeMikael Pettersson
In the HiPE part of the runtime system's Process struct there is a state field which is 32 bits wide even on 64-bit machines. There is a single instruction in the HiPE AMD64 runtime where this field is incorrectly written with a 64-bit store. Luckily the extraneous 32 bits are written as zeros to 4 bytes of tail-padding at the end of the struct, so nothing should have broken because of this. The same bug exists in the HiPE PowerPC64 runtime (in development), but on the big-endian PPC64 the effect is to write the actual value to the tail-padding and zero to the struct field, which potentially breaks TRAPs from BIFs (depending on BIF arities and how many parameter registers the runtime has been configured to use). Thanks to Paul Guyot for noticing the oversized write on AMD64.
2010-09-24Remove stray use of _VOID_Björn Gustavsson
In a70159b33f20a26b2674d7cf777617c5f0261a5c, the _VOID_ macro was eliminated, but one use of it inside an "#ifdef DEBUG" was forgotten.
2010-09-13Merge branch 'rickard/timer-wheel/OTP-8835' into devRickard Green
* rickard/timer-wheel/OTP-8835: Use mutex instead of rwlock
2010-09-13Teach port suite to not use unix-specific commands and not leave them runningPatrik Nyblom
2010-09-10Merge branch 'pan/binary-bif-valgrind-leak/OTP-8823' into devPatrik Nyblom
* pan/binary-bif-valgrind-leak/OTP-8823: Teach erl_bif_binary not leak memory by doing malloc(0)
2010-09-10Use mutex instead of rwlockRickard Green
Use mutex instead of rwlock since the read lock is more or less unused and it can be quite contended.
2010-09-10Merge branch 'bjorn/http-packet-error/OTP-8831' into devBjörn Gustavsson
* bjorn/http-packet-error/OTP-8831: Make gen_tcp:recv/2 consistent with ssl:recv/2
2010-09-10Merge branch 'rickard/rwmtx-spin/OTP-8819' into devRickard Green
* rickard/rwmtx-spin/OTP-8819: Fix deadlock in reader optimized rwlock implementation Remove unused variables Increase spincount with many schedulers Re-enable spin wait on ethreads rwlocks
2010-09-09Make gen_tcp:recv/2 consistent with ssl:recv/2Björn Gustavsson
When the HTTP packet mode has been enabled for a socket, the ssl and gen_tcp modules have different error indications when there is an error while parsing the HTTP header: ssl:recv(SSLSocket, 0) -> {ok, {http_error, _Str}} gen_tcp:recv(Socket, 0) -> {error, {http_error, _Str}} We have decided to change gen_tcp:recv/2 to behave the same way as ssl:recv/2. That means that there will be always be an ok tuple if data could be succefully read from the socket, and an error tuple if there was a read error at the socket level.
2010-09-08Re-enable spin wait on ethreads rwlocksRickard Green
Spin wait on most ethread rwlocks used by the runtime system was unintentionally disabled during development. Spin wait has now been enabled again. This bug appeared in commit 59ee2a593090e7d53c97ceba63cbd300d1b9657e, i.e., it has not been seen in any released versions.
2010-09-07Teach erl_bif_binary not leak memory by doing malloc(0)Patrik Nyblom
2010-09-07Merge branch 'pg/fix-hipe-crash-in-gc_after_bif' into devBjörn Gustavsson
* pg/fix-hipe-crash-in-gc_after_bif: Fix call to erts_gc_after_bif_call in hipe glue
2010-09-07Merge branch 'mk/net-dragonfly-bsd-patches' into devBjörn Gustavsson
* mk/net-dragonfly-bsd-patches: Remove unused variables Use proper install method Add support for DragonFly BSD Add support for NetBSD
2010-09-06Merge branch 'ms/inet-bug-fixes' into devBjörn Gustavsson
* ms/inet-bug-fixes: inet: support retrieving MAC address on BSD inet: fix getservbyname buffer overflow inet: fix ifr_name buffer overflow inet: null terminate ifr_name buffer OTP-8816
2010-09-06Fix call to erts_gc_after_bif_call in hipe gluePaul Guyot
R12B-0 changed the signature of erts_gc_after_bif_call and it now takes 4 parameters instead of 2 in R11B-5. Yet, the glue code was not updated accordingly. As a result, the function erts_gc_after_bif_call was called with garbage and would randomly cause a crash later in the garbage collector code. The fix consists in passing NULL and 0 for the third and fourth parameters, since there is no term to add to rootset, recovering the behaviour of R11B-5 (see otp_src_R11B-5/erts/emulator/beam/erl_gc.c, line 314). (Includes assembly language fixes and code style improvements suggested by Mikael Pettersson.)
2010-09-06Stop leaking memory in nif_SUITE:send* testcasesPatrik Nyblom
The make_term_n function in nif_SUITE.c created resources that never got released, creating valgrind memcheck Definitely Lost warnings.
2010-09-04Add scheduler wakup threshold as command line argumentRickard Green
The scheduler wakeup threshold is now possible to adjust at system boot. For more information see the `+swt' command line argument of `erl'.
2010-09-04Lower the scheduler wakeup thresholdRickard Green
Lower the scheduler wakeup threshold since schedulers aren't spuriously woken as before (since commit 59ee2a593090e7d53c97ceba63cbd300d1b9657e).
2010-09-03inet: support retrieving MAC address on BSDMichael Santos
On systems supporting getaddrinfo(), support looking up the MAC address from inet:ifget/2. The results have the same quirks as with Linux: if the MAC address is longer than 6 bytes (e.g., fw0 under Mac OS X), the address is truncated; if the interface does not have a MAC address (e.g., lo0), an address consisting of 0's is returned.
2010-09-02Add erlang:system_info(build_type)Rickard Green
Added erlang:system_info(build_type) which makes it easier to chose drivers, NIF libraries, etc based on build type of the runtime system.
2010-09-02Merge branch 'rickard/cpu-info-testcase/OTP-8765' into devRickard Green
* rickard/cpu-info-testcase/OTP-8765: Fix crash when calling erlang:system_info(update_cpu_info) Add testcase for erlang:system_info(update_cpu_info)
2010-09-02Merge branch 'rani/sctp-sndrcvinfo/OTP-8795' into devRaimo Niskanen
* rani/sctp-sndrcvinfo/OTP-8795: Fix xfer_active close expection for Solaris behaviour Keep default #sctp_sndrcvinfo{} fields on gen_sctp:send/4 Fill in sinfo_assoc_id in struct sctp_sndrcvinfo for getopt() Conflicts: lib/kernel/test/gen_sctp_SUITE.erl
2010-09-02Merge branch 'rani/sctp-linger-bugfix/OTP-8726' into devRaimo Niskanen
* rani/sctp-linger-bugfix/OTP-8726: Fix SCTP linger option
2010-09-01Merge branch 'pg/fix-segfault-on-crash_dump-with-hipe' into devBjörn Gustavsson
* pg/fix-segfault-on-crash_dump-with-hipe: Fix segmentation fault when dumping the crash log with hipe enabled and natively compiled modules OTP-8801
2010-09-01Merge branch 'mp/fix-hipe-on_load_crash' into devBjörn Gustavsson
* mp/fix-hipe-on_load_crash: fix native code crash when calling unloaded module with on_load function OTP-8799
2010-09-01Merge branch 'mp/robustify-hipe_bifs_get_hrvtime' into devBjörn Gustavsson
* mp/robustify-hipe_bifs_get_hrvtime: robustify hipe_bifs:get_hrvtime/0 OTP-8798
2010-09-01Fix crash when calling erlang:system_info(update_cpu_info)Rickard Green
Calling erlang:system_info(update_cpu_info) on platforms where no CPU topology was found could result in a crash if other CPU information had changed. This bug was introduced in the 'dev' branch before R14B (commit 1b273b618002d65159453fdfb9520a9476e4423a). That is, the bug has never been seen in a released runtime system.
2010-09-01Add testcase for erlang:system_info(update_cpu_info)Rickard Green
2010-08-31Merge branch 'rickard/cpu-info-unbind/8765' into devRickard Green
* rickard/cpu-info-unbind/8765: Fix erroneous error reports about unbind failure
2010-08-31Fix erroneous error reports about unbind failureRickard Green
On platforms where binding of schedulers is not supported, numerous error reports on the form "Scheduler <N> failed to unbind from cpu -1: enotsup" were erroneously issued. This bug was introduced in the 'dev' branch before R14B (commit 1b273b618002d65159453fdfb9520a9476e4423a). That is, the bug has never been seen in a released runtime system. Reported-By: Tuncer Ayaz
2010-08-31Fill in sinfo_assoc_id in struct sctp_sndrcvinfo for getopt()Raimo Niskanen
The assoc_id field was uninitialized causing random answers.
2010-08-31Fix SCTP linger optionRaimo Niskanen
inet:setopts(S, [{linger,{true,2}}]) returned {error,einval} for SCTP sockets. The inet_drv had a bug when checking the option size.
2010-08-30Merge branch 'pan/ets_binary_overhead/OTP-8762' into devPatrik Nyblom
* pan/ets_binary_overhead/OTP-8762: Remove binary overhead counter from ets objects
2010-08-30Merge branch 'sverker/NIF-64bit-integers/OTP-8746' into devPatrik Nyblom
* sverker/NIF-64bit-integers/OTP-8746: Make windows 64bit types be declared more consistently Teach Windows about the int64 functions NIF doc official support note NIF 64-bit integer support
2010-08-30Merge branch 'egil/R14A/binary-gc-wrap/OTP-8730' into devPatrik Nyblom
* egil/R14A/binary-gc-wrap/OTP-8730: Increase vheap counter to Uint64 Fix wrapping in next vheap calculation
2010-08-30Merge branch 'pan/local_univ_time_bsd/OTP-8580' into devPatrik Nyblom
* pan/local_univ_time_bsd/OTP-8580: Teach erl_time_sup to handle timezones w/o DST on FreeBSD as on other platforms
2010-08-30Merge branch 'pan/list_to_float/OTP-7178' into devPatrik Nyblom
* pan/list_to_float/OTP-7178: Teach Unix sys_float.c to ignore underflow in list_to_float and return 0.0
2010-08-30Merge branch 'rickard/cpu-info/OTP-8765' into devRickard Green
* rickard/cpu-info/OTP-8765: Initialize environment functionality after thread lib Fix faulty assertions Implement automatic detection of CPU topology on Windows Make it possible to reread and update detected CPU information
2010-08-30Initialize environment functionality after thread libRickard Green
An assertion failed due to the thread library not being initialized when initializing an rwmutex. This was however harmless.
2010-08-27Fix segmentation fault when dumping the crash log with hipe enabled and ↵Paul Guyot
natively compiled modules When loading a module, code area is allocated and header fields code[MI_ATTR_SIZE] as well as code[MI_COMPILE_SIZE] are not cleared. They are only set later when freeze_code is called, if the module has attributes and compilation info, which should always be the case. When loading a native module (as a stub), code is allocated as well (to contain the stub functions), and code[MI_ATTR_SIZE] as well as code[MI_COMPILE_SIZE] are not cleared either. Yet, freeze_code will not be called (since there is no threaded code to freeze for native modules), and as a result, these header fields are never set. They can contain any garbage. Later on, when writing a crash dump, the attributes and compilation info are dumped, using these particular header fields. If the size is garbage, the dump attribute function will iterate until it segfaults. The fix consists in clearing code[MI_ATTR_SIZE] and code[MI_COMPILE_SIZE] in both cases (threaded code and native code). Even if non-native modules should contain code and attributes and therefore the values code[MI_ATTR_SIZE] and code[MI_COMPILE_SIZE] should be set by freeze_code, it seems cleaner and easier to maintain to clear the whole the header in the "initialize code area" section. As a result, crash dump will not segfault. Instead, native modules will have an empty attributes and compilation info section in the crash dump.