Nuova versione stabile per il browser di Google, Chrome 17.0.963.78

The Chrome Stable channel has been updated to 17.0.963.78 on Windows, Mac Os X, Linux and Chrome Frame.  This release fixes issues with Flash games and videos, along with the security fix listed below.

Security fixes and rewards:

Congratulations again to community member Sergey Glazunov for the first submission to Pwnium!

- Critical CVE-2011-3046: UXSS and bad history navigation. Credit to Sergey Glazunov.

NVidia è entrata a far parte della Linux Foundation, organizzazione no-profit dedicata a promuovere la crescita di Linux. NVidia si va così ad aggiungere a Intel e AMD che sono soci da tempo della fondazione. Altri soci di rilievo della Linux Foundation sono IBM, Google, Oracle, Cisco, Adobe, Samsung, Siemens. Al momento non è ancora chiaro se questo comporterà delle modifiche nella politica di NVidia sui driver, NVidia ha finora rilasciato driver proprietari per le sue schede grafiche sotto Linux.

L'ultimo report rilasciato da Coverity, Coverity Scan Open Source Integrity Report, relativo al 2011 indica che la qualità del codice open source è pari o superiore alla qualità del software proprietario. Nello studio, frutto di una collaborazione tra Coverity e lo US Department of Homeland Security nata nel 2006, sono stati analizzati oltre 37 milioni di linee di codice open source e oltre 300 milioni di linee di codice dei software proprietari.

I 45 software open source analizzati hanno una media di 832.000 linee di codice, e la densità media di difetto (numero di difetti per 1000 righe di codice) è di 0.45. I 41 software proprietari analizzati hanno una media di 7.5 milioni di linee di codice, e una densità media di difetto di 0.64.

Linux 2.6, PHP 5.3, e PostgreSQL 9.1 sono stati riconosciuti come i progetti open source con una qualità del codice maggiore, rispettivamente con densità di difetto 0.62, 0.20, e 0.21.

"Open source code quality is on par with proprietary code quality, particularly in cases where codebases are of similar size. For instance, Linux 2.6, a project with nearly 7 million lines of code, has a defect density of 0.62 which is roughly identical to that of its proprietary codebase counterparts"

Annunciato il rilascio di MySQL 5.5.21, nuova versione del RDMBS (Relational Database Management System) open source

MySQL 5.5.21 is a new version of the 5.5 production release of the world's most popular open source database. MySQL 5.5.21 is recommended for use on production systems. MySQL 5.5 includes several high-impact enhancements to improve the performance and scalability of the MySQL Database, taking advantage of the latest multi-CPU and multi-core hardware and operating systems. In addition, with release 5.5, InnoDB is now the default storage engine for the MySQL Database, delivering ACID transactions, referential integrity and crash recovery by default.

Functionality Added or Changed

A new CMake option, MYSQL_PROJECT_NAME, can be set on Windows or Mac OS X to be used in the project name. (Bug #13551687)

Bugs Fixed

Performance: InnoDB Storage Engine: Memory allocation for InnoDB tables was reorganized to reduce the memory overhead for large numbers of tables or partitions, avoiding situations where the "resident set size" could grow regardless of FLUSH TABLES statements. The problem was most evident for tables with large row size. Some of the memory that was formerly allocated for every open table is now allocated only when the table is modified for the first time. (Bug #11764622, Bug #57480)

Incompatible Change: An earlier change (in MySQL 5.1.62 and 5.5.21) was found to modify date-handling behavior in General Availability-status series (MySQL 5.1 and 5.5). This change has been reverted.

The change was that several functions became more strict when passed a DATE() function value as their argument, thus they rejected incomplete dates with a day part of zero. These functions were affected: CONVERT_TZ(), DATE_ADD(), DATE_SUB(), DAYOFYEAR(), LAST_DAY(), TIMESTAMPDIFF(), TO_DAYS(), TO_SECONDS(), WEEK(), WEEKDAY(), WEEKOFYEAR(), YEARWEEK(). The previous behavior has been restored. (Bug #13458237)

InnoDB Storage Engine: A Valgrind error was fixed in the function os_aio_init(). (Bug #13612811)

InnoDB Storage Engine: The server could crash when creating an InnoDB temporary table under Linux, if the $TMPDIR setting points to a tmpfs filesystem and innodb_use_native_aio is enabled, as it is by default in MySQL 5.5.4 and higher. The entry in the error log looked like:

101123 2:10:59 InnoDB: Operating system error number 22 in a file operation.
InnoDB: Error number 22 means 'Invalid argument'.
The crash occurred because asynchronous I/O is not supported on tmpfs in some Linux kernel versions. The workaround was to turn off the innodb_use_native_aio setting or use a different temporary directory. The fix causes InnoDB to turn off the innodb_use_native_aio setting automatically if it detects that the temporary file directory does not support asynchronous I/O. (Bug #13593888, Bug #11765450, Bug #58421)

InnoDB Storage Engine: References to C preprocessor symbols and macros HAVE_purify, UNIV_INIT_MEM_TO_ZERO, and UNIV_SET_MEM_TO_ZERO were removed from the InnoDB source code. They were only used in debug builds instrumented for Valgrind. They are replaced by calls to the UNIV_MEM_INVALID() macro. (Bug #13418934)

InnoDB Storage Engine: The MySQL server could halt with an assertion error:

InnoDB: Failing assertion: page_get_n_recs(page) > 1
Subsequent restarts could fail with the same error. The error occurred during a purge operation involving the InnoDB change buffer. The workaround was to set the configuration option innodb_change_buffering=inserts. (Bug #13413535, Bug #61104)

InnoDB Storage Engine: With 1024 concurrent InnoDB transactions running concurrently and the innodb_file_per_table setting enabled, a CREATE TABLE operation for an InnoDB table could fail. The .ibd file from the failed CREATE TABLE was left behind, preventing the table from being created later, after the load had dropped.

The fix adds error handling to delete the erroneous .ibd file. This error was less likely to occur in MySQL 5.5 and 5.6, because raising the number of InnoDB undo slots increased the number of simultaneous transactions needed to trigger the bug, from 1K to 128K. (Bug #12400341)

Replication: Executing mysqlbinlog with the --start-position=N option, where N was equal either to 0 or to a value greater than the length of the dump file, caused it to crash.

This issue was introduced in MySQL 5.5.18 by the fix for Bug #32228 and Bug #11747416. (Bug #13593869, Bug #64035)

Replication: On Windows replication slave hosts, STOP SLAVE took an excessive length of time to complete when the master was down. (Bug #11752315, Bug #43460)

A query that used an index on a CHAR column referenced in a BETWEEN clause could return invalid results. (Bug #13463488, Bug #63437)

Expressions that compared a BIGINT column with any non-integer constant were performed using integers rather than decimal or float values, with the result that the constant could be truncated. This could lead to any such comparison that used <, >, <=, >=, =, !=/<>, IN, or BETWEEN yielding false positive or negative results. (Bug #13463415, Bug #11758543, Bug #63502, Bug #50756)

When the optimizer performed conversion of DECIMAL values while evaluating range conditions, it could produce incorrect results. (Bug #13453382)

When running mysqldump with both the --single-transaction and --flush-logs options, the flushing of the log performed an implicit COMMIT (see Section 12.3.3, "Statements That Cause an Implicit Commit"), causing more than one transaction to be used and thus breaking consistency. (Bug #12809202, Bug #61854)

It was possible in the event of successive failures for mysqld_safe to restart quickly enough to consume excessive amounts of CPU. Now, on systems that support the sleep and date system utilities, mysqld_safe checks to see whether it has restarted more than 5 times in the current second, and if so, waits 1 second before attempting another restart. (Bug #11761530, Bug #54035)

When used with the --xml option, mysqldump --routines failed to dump any stored routines, triggers, or events. (Bug #11760384, Bug #52792)

It was possible on replication slaves where FEDERATED tables were in use to get timeouts on long-running operations, such as Error 1160 Got an error writing communication packets. The FEDERATED tables did not need to be replicated for the issue to occur. (Bug #11758931, Bug #51196)

References: See also Bug #12896628, Bug #61790.

If an attempt to initiate a statement failed, the issue could not be reported to the client because it was not prepared to receive any error messages prior to the execution of any statement. Since the user could not execute any queries, they were simply disconnected without providing a clear error.

After the fix for this issue, the client is prepared for an error as soon as it attempts to initiate a statement, so that the error can be reported prior to disconnecting the user. (Bug #11755281, Bug #47032)

Using myisamchk with the sort recover method to repair a table having fixed-width row format could cause the row pointer size to be reduced, effectively resulting in a smaller maximum data file size. (Bug #48848, Bug #11756869)

On Windows, the server incorrectly constructed the full path name of the plugin binary for INSTALL PLUGIN and CREATE FUNCTION ... SONAME. (Bug #45549, Bug #11754014)

The stored routine cache was subject to a small memory leak that over time or with many routines being used could result in out-of-memory errors. (Bug #44585, Bug #11753187)

Il changelog completo è disponibile a questa pagina. Download a partire da questa pagina.

Rilasciata la versione 6.2 di Scientific Linux

Differences from SL6.1

anaconda
Added the Scientific Linux install classes
DVD installs do not ask for the network unless needed

OpenAFS
Updated to version 1.6.0-97.z2.sl6
This packages includes a patch to disable NAT pings to avoid a race condition

livecd-tools, liveusb-creator
Updated from upstream to version 13.4
Added support for SL 6.2

redhat-rpm-config
Changed to recognize Scientific Linux as an Enterprise Linux

sl-release
removed Troy Dawson's GPG key
added CERN's GPG
added EULA

yum-autoupdate
yum-autoupdate has had PRERUN and POSTRUN scripts added for more flexibility

External Repositories for yum
The yum-conf-* packages now require yum-fastestmirror by popular request The new x86_64 adobe repo is now available

mingw32, hivex, openmpi-psm
Removed these packages from the i386 tree as they do not belong in that tree

RHN related tools present in SL6.1 have been removed
rhn-client-tools, rhnlib, rhnsd, rhn-setup-gnome,
subscription-manager, yum-rhn-plugin

Download a partire da questa pagina.

Annunciato il rilascio di Sabayon Linux 8.

Features

• The first and best way to try a Gentoo-based Linux distribution at its full power, with all working out-of-the-box and no compilation needed at all
• Faster, cleaner and more evolved than any other rolling distro out there: we work hard to bring you the most stable rolling release experience
• Keep up-to-date your system in minutes while maintaining full Gentoo Portage compatibility
• Focusing on performance: GCC 4.6 with Graphite Loop Transformation infrastructure and Link Time Optimizations enabled
• Always up-to-date Linux Kernel 3.2 (and experimental "Fusion" Kernels available in repositories)
• Providing extra Server-oriented Linux kernels (OpenVZ, Vserver, Generic Server)
• Natively supporting the btrfs file system (besides ext4, aufs, and others)
• Transform Sabayon into an full-featured HTPC Operating System (Media Center) using XBMC 10.1 (11.0 available soon)
• GNOME 3.2.2 Visual Environment
• KDE 4.7.4 Desktop Environment (4.8.0 available in a few days)
• Improved Xfce 4.8 out-of-the-box experience (for those missing GNOME2)
• Improved LibreOffice integration, updated to 3.4.4
• Migrated to libav as ffmpeg replacement
• Migrated to Java 7 and Subversion 1.7
• Cinnamon and Razor Qt available in repositories
• Entropy Framework (Package Manager, Web Services) updated to 1.0_rc86, consolidating stability and performance
• Support for IME and non-roman fonts at install time
• Support for non-latin languages at install time
• More than 12000 packages available for x86_64, i686

Download dai mirror indicati a questa pagina.

Annunciato il rilascio del Qt SDK 1.2

this is what is new in the Qt SDK:

• Fixes for Qt Creator 2.4 in a new 2.4.1 patch update
• Qt 4.8 for desktops delivering Qt Quick 1.1, Qt platform abstraction, Qt WebKit 2.2, and threaded OpenGL.
• More Qt Mobility examples for Nokia N9 and Symbian devices
• Ability to specify network proxy setting in the SDK Maintenance Tool
• Update to the Symbian Complementary Package introducing Analyze Tool plugin and new CODA 1.0.6 installation package
• An update to Notifications API improving the end user experience and fixing issues in the Nokia N9 implementation of the API.

News
Qt SDK 1.2 is available and provides:

• Qt Creator 2.4.1: offering improvements in the C++ and QML editors, such as syntax highlighting in QML, and improved static QML code checking features.
• Symbian target updates:
  • Updated Nokia AnalyzeTool plug-in to take full advantage of Qt Creator 2.4.
  • Added CODA 1.0.6 (on-device debugging) agent.
• Updated MeeGo 1.2 Harmattan target.
• Over 20 new Qt Mobility examples, which are now easily assessable from the Qt Creator welcome page.

The Qt SDK is available in the following versions and installation packages:

• 32- or 64-bit Microsoft Windows XP Service Pack 2, Windows Vista, or Windows 7.
• 32-bit Ubuntu Linux 10.04 or later.
• 64-bit Ubuntu Linux 10.04 or later.
• 64-bit Apple Mac OS X 10.6 or later.

Download a partire da questa pagina.

NVidia ha rilasciato il SDK 3.1 di PhysX, download a partire da questa pagina del PhysX Developer Support

General

• VC10 support has been introduced.
• VC8 support has been discontinued.
• Namespaces cleaned up.
• Extensions, Character Controller and Vehicle source code made available in binary distribution.
• Added x86,x64 suffix to PxTaskCUDA.dll
• Removed boolean return value from PxScene::addActor(…), and similar API calls.
• Added Mac OS X, Android and Linux to the list of supported platforms. See Supported Platforms below for details.
• Upgraded GPU tech to CUDA 4.
• Cleaned up a large number of warnings at C++ warning level 4, and set SDK to compile with warnings as errors.
• Removed individual sample executables in favor of SampleAllInOne from PC and console builds.
• Fixed alpha blending in samples.
• Simplified some code in samples.
• Improved ambient lighting in samples.
• Made samples work with older graphics cards.
• Renamed some XBOX 360 specific files and folders.
• Improved and added more content the user’s guide.
• No longer passing NULL pointers to user allocator to deallocate.
• Various improvements to Foundation and classes shared with APEX.

Rigid Bodies

• Rigid Body: High performance alternative convex narrow phase code available to source licensees. See PERSISTENT_CONTACT_MANIFOLD in the code.
• Significant advancements in the continuous collision detection algorithm.
• Optimizations and robustness improvements for articulations.
• Added some helper code to the API.
• Added sleep code for articulations.
• Added support for vehicles with more than one chassis shape.
• Solver iteration count for articulations.
• Articulation limit padding configurable.
• The reference count of meshes does now take the application’s reference into acount as well and thus has increased by 1 (it used to count the number of objects referencing the mesh only). Note that a mesh does only get destroyed and removed from the list of meshes once the reference count reaches 0.
• Fixed autowake parameter sometimes being ignored.
• Constraint solver optimizations.
• Improved behavior of character controller on steep slopes.
• Binary serialization now saves names.
• Removed some descriptors from API.
• Removed the angular velocity term in the joint positional drive error formula.
• Fixed bug in capsule sweep versus mesh.
• Fixed a crash bug in the tire model.
• Fixed crashing of single link articulations.
• Fixed bug related to removing elements of an aggregate.
• Fixed swapped wheel graphs in sample vehicle.
• Fixed some slow moving bodies falling asleep in midair.
• Fixed missing collisions after a call to resetFiltering.
• Fixed broken autowake option in setAngularVelocity.
• Fixed D6 joint linear limits being uninitialized.
• A large number of misc. bug fixes and optimizations.
• Improved documentation and error messages associated with running out of narrow phase buffer blocks.
• Added articulation documentation.
• Expanded manual sections on joints.
• Improved reference doc for PxSceneQueryHitType.
• Added reference doc for PxSerializable.

Particles

• Particle index allocation removed from SDK. Added index allocation pool to extensions.
• Replaced GPU specific side band API PxPhysicsGpu and PxPhysics::getPhysicsGpu() with PxParticleGpu.
• Memory optimizations on all platforms and options to reduce memory usage according to use case with new per particle system flags:
  • PxParticleBaseFlag::eCOLLISION_WITH_DYNAMIC_ACTORS
  • PxParticleBaseFlag::ePER_PARTICLE_COLLISION_CACHE_HINT
• Fixed rare crash appearing with multi-threaded non-GPU particle systems and rigid bodies.
• Fixed particles leaking through triangle mesh geometry on GPU.
• Fixed fast particles tunneling through scene geometry in some cases.
• Fixed erroneous collision of particles with teleporting rigid shapes (setGlobalPose).
• Fixed particle sample behavior with some older GPU models.
• Fixed a GPU particle crash bug.

Cloth

• A new solution for simulating cloth and clothing.

Deformables

• Deformables are deprecated and will be removed in the next release. There is a new optimized solution for clothing simulation (see documentation on PxCloth for details).

Rilasciato il secondo update di KDE 4.7, desktop environment per sistemi linux

These updates are the second in a series of monthly stabilization updates to the 4.7 series. 4.7.2 updates bring many bugfixes and translation updates on top of the latest edition in the 4.7 series and are recommended updates for everyone running 4.7.0 or earlier versions. As the release only contains bugfixes and translation updates, it will be a safe and pleasant update for everyone. KDE’s software is already translated into more than 55 languages, with more to come. The October updates are especially interesting for those using the new Akonadi-based Kontact Suite, as it contains many performance improvements and bugfixes for applications such as KMail, and others retrieving information using Akonadi.

Changelog disponibile a questa pagina. Il codice sorgente può essere scaricato da uno dei mirror indicati a questa pagina.

Rilasciato VMWare Player 4.0, software freeware con cui è possibile far eseguire immagini realizzate con VMWare. Come per VMWare Workstation 8.0 anche VMWare player 4.0 potrà girare solo su PC con processori a 64 bit. Note di rilascio a questa pagina

The hardware requirements to install this version of Workstation have changed. Workstation now requires a relatively modern 64-bit CPU.

This version of Workstation includes many hardware improvements. To try new hardware features, you must upgrade the hardware version of your virtual machine or create a new virtual machine that uses the latest virtual hardware version.

• The display technology has been changed to provide a better experience for Unity users and users who have multiple monitors. These changes also allow you to add a projector to your laptop without restarting your virtual machine.
• Virtual machines can now support up to 64GB of memory. The host system should have more than 64GB of memory to use this feature.
• An HD Audio device is available for Windows Vista, Windows 7, Windows 2008, and Windows 2008 R2 guests. The HD Audio device is compatible with the RealTek ALC888 7.1 Channel High Definition Audio Codec.
• USB 3.0 support is available for Linux guests running kernel version 2.6.35 or later (Ubuntu 10.10) through a new virtual xHCI USB controller. To enable this feature, add the following line to the .vmx file: usb_xhci.present = "true". Do not enable this feature for Windows guests. Because Windows does not currently have a generic xHCI driver, this feature will not work in Windows.
• Bluetooth devices on the host can now be shared with Windows guests. With the latest hardware version, Bluetooth devices that are paired to the host system radio are available to Windows guests and can be paired from within the guest. You should not pair Bluetooth audio devices, such as headphones, or Bluetooth input devices, such as keyboards and mice, to a guest.

Il download di VMWare Player è possibile da questa pagina (è necessario essere registrati).