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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
2010-09-06Stop 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.
2010-08-27fix native code crash when calling unloaded module with on_load functionMikael Pettersson
As reported in erlang-bugs, the following sequence of events crashes the VM: 1. Module M1 is loaded and in native mode. 2. Module M2 is not loaded, in emulated mode, and has an on_load function. 3. M1 calls some function in M2. This works. 4. M1 again calls some function in M2. This segfaults. The reason for the crash is that when the beam loader fixes up export entries after a successful on_load function call, it erroneously clears the ->code[3] field in that module's export entries. This is redundant (no code in beam relies on ->code[3] being NULL), inconsistent with modules without on_load functions (there ->code[3] remains a valid beam instruction after the module is loaded), and breaks native code which needs the old ->address value in an export entry to remain valid after a module load step (before the load ->address points to ->code[3], after the load ->address points to the real code but uses of the old ->address value remain so ->code[3] must remain valid). Thus the fix for the crash is to simply not clear ->code[3]. This patch fixes R14A and should also fix R13B04. (There does exist a performance bug in this area, but it is unrelated to the on_load feature so will be fixed separately.)
2010-08-27robustify hipe_bifs:get_hrvtime/0Mikael Pettersson
The HiPE runtime system has a hipe_bifs:get_hrvtime/0 BIF which mimics the non-standard gethrvtime() C API. It's possible to configure the implementation to use the "perfctr" Linux kernel extension for performance-monitoring counters, in which case get_hrvtime has very high precision and low overhead. Otherwise it uses the same code as runtime(statistics). This patch changes the get_hrvtime implementation to do a runtime check to see if perfctr is available, and to use the fallback code rather than returning a dummy value if perfctr is unavailable, which is common. The current dummy value return is a bug. It messes up the API and either breaks callers (they get badarg when trying to compute on the value) or forces them to implement checks and fallbacks themselves. Timing code in HiPE's test suites and benchmarks is known to be affected.
2010-08-24Merge branch 'rickard/erts-poll-race/OTP-8773' into devRickard Green
* rickard/erts-poll-race/OTP-8773: Fix race in erts_poll()
2010-08-20Fix race in erts_poll()Rickard Green
A race condition in erts_poll() could cause delay of poll for I/O.
2010-08-20Merge branch 'bjorn/solaris-fp-exception' into devBjörn Gustavsson
* bjorn/solaris-fp-exception: Solaris/x86: Handle floating point exceptions properly in driver threads
2010-08-20Merge branch 'bjorn/remove-elib_malloc/OTP-8764' into devBjörn Gustavsson
* bjorn/remove-elib_malloc/OTP-8764: erts: Remove broken elib_malloc erts: Remove the unused mem_drv driver erts: Remove stray pre-ISO-C compatibility macros erts: Remove unused decl.h
2010-08-19Merge branch 'rickard/fix-faulty-assert/OTP-8759' into devRickard Green
* rickard/fix-faulty-assert/OTP-8759: Fix faulty no_empty_run_queues assertion
2010-08-19Remove binary overhead counter from ets objectsPatrik Nyblom
As the overhead counter got larger and never really was needed in ets objects, I removed them. A few stray comments of XXX:PaN type from halfword dev removed in the process.
2010-08-18Make it possible to reread and update detected CPU informationRickard Green
Calling erlang:system_info/1 with the new argument 'update_cpu_info' will make the runtime system reread and update the internally stored CPU information. For more information see the documentation of erlang:system_info(update_cpu_info).
2010-08-17Solaris/x86: Handle floating point exceptions properly in driver threadsBjörn Gustavsson
On Solaris/x86, the floating point exceptions bits seems to be propagated to child threads, so if scheduler threads use floating points exceptions, also driver threads will have floating points exception enabled. The problem is that erts_thread_init_float() has not been called for driver threads, and because of that matherr() will crash when called. Fix matherr() so that it will work even if erts_thread_init_float() has not been called. This fix was suggested by Mikael Pettersson.
2010-08-17erts: Remove broken elib_mallocBjörn Gustavsson
elib_malloc is an alternate memory allocator that is no longer possible to build.
2010-08-17erts: Remove the unused mem_drv driverBjörn Gustavsson
The mem_drv driver was only useful when elib_malloc was active.
2010-08-17erts: Remove stray pre-ISO-C compatibility macrosBjörn Gustavsson
A long time ago, the Erlang run-time system could be build with pre-ANSI/ISO-C (K&R) C compilers, but that is no longer possible. Remove the remaining uses of the compatibility macros that made it possible that possible.
2010-08-14erts: Remove unused decl.hBjörn Gustavsson
The header file erts/emulator/beam/decl.h is no longer used.
2010-08-13Add support for NetBSDMartti Kuparinen
These are the current NetBSD pkgsrc patches.
2010-08-13fix hipe_bifs_alloc_data_2 to avoid "Yikes!" warningMikael Pettersson
It's been reported that HiPE-enabled Erlang VMs running on BSD systems sometimes generate messages like Yikes! erts_alloc() returned misaligned address 0x8016a512c These originate from hipe_bif0.c:hipe_bifs_alloc_data_2(). A native code module has an associated data area of some size and alignment. In the case where the size is zero, the alignment is irrelevant, but the allocation BIF checks it anyway. The warning then triggers on systems where malloc(0) returns blocks with less alignment than we (erroneously) expected. The fix is to simply skip the allocation in this case and return NULL. The loader won't actually use the address in this case so that's safe. This is also an optimization since it avoids allocating memory that cannot be used, and it avoids fragmenting the system heap with useless tiny blocks. A second problem is that the warning message failed to identify its origin. Fixed by prefixing the message by the BIF's name rather than the silly Yikes! string. Tested and confirmed to solve the original reporter's problem.
2010-08-12Increase vheap counter to Uint64Björn-Egil Dahlberg
This will reduce the risk of integer wrapping in bin vheap counting. The vheap size series will now use the golden ratio instead of doubling and fibonacci sequences. OTP #8730
2010-08-12Fix wrapping in next vheap calculationBjörn-Egil Dahlberg
OTP #8730
2010-08-12Merge branch 'bjorn/remove-obsolete-driver-support/OTP-8758' into devBjörn Gustavsson
* bjorn/remove-obsolete-driver-support/OTP-8758: Remove obsolete/driver.h and the associated functionality
2010-08-11Fix faulty no_empty_run_queues assertionRickard Green
For a short period of time no_empty_run_queues may have been increased twice for a specific run queue. Two assertions did not take this into account.
2010-08-11Make windows 64bit types be declared more consistentlyPatrik Nyblom
2010-08-11Remove obsolete/driver.h and the associated functionalityBjörn Gustavsson
The obsolete/driver.h header file has been obsolete since R8B. Remove that file, along with obsolete thread APIs for drivers in the emulator and the test cases.
2010-08-10Teach Windows about the int64 functionsPatrik Nyblom