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Linux Kernel News Archives

EXT4 Lets Us Down, There Goes Our R600/700 Mesa Tests

For the past several days benchmarks have been going on a plethora of ATI Radeon HD 2000/3000/4000 (R600/700 generation) graphics cards as well as some of the older Radeon X1000 (R500) hardware for reference. All of this testing has been done with the current open-source ATI driver stack with Mesa to show where the performance is at for the H1'2010 Linux distributions. At our disposal is quite a collection of graphics cards, but to much dismay this article has been postponed as the testing process had to be restarted from scratch.
1 February 2010 - EXT4 Is Unreliable - 66 Comments

Hybrid Graphics Comes To Linux In Crude Form

While the support for graphics processors on Linux in the free software stack has improved a lot over Linux, there still are entire areas of support missing, such as with supporting NVIDIA's SLI or AMD's CrossFire technologies. Additionally, NVIDIA and AMD as well as Intel have been plopping dual GPUs into notebooks. This is not to split the rendering workload, but rather to allow one lower-powered GPU to be utilized when not in engaging in any vigorous tasks and then another performance-oriented GPU to be utilized when such speed is needed. This solution basically provides the best of both words of having maximum battery life but fast performance when needed. However, Linux has not supported this hybrid / switchable graphics technology at all.
1 February 2010 - Kernel Hacks - 9 Comments

Linux 2.6.33-rc6 Kernel For The Weekend

Linus has put out the Linux 2.6.33-rc6 kernel release. This release candidate for the Linux 2.6.33 kernel is on time arriving precisely one week after the Linux 2.6.33-rc5 release.
29 January 2010 - Friday Afternoon Release - 5 Comments

Linux 2.6.33-rc5 Kernel Released w/ Mantis Driver

The latest release candidate for Linux 2.6.33 kernel is now available and that's Linux 2.6.33-rc5. The Linux 2.6.33-rc5 kernel delivers on eDP (embedded Display Port) support for Intel's DRM/KMS driver (the open-source ATI stack also has eDP) and the DVB "Mantis" driver has moved forward in the mainline kernel. The Mantis chipset that has been around for a while is popular on many DVB boards, but now it's supported in the mainline Linux 2.6.33 kernel.
22 January 2010 - New Kernel Build - 2 Comments

Linux 2.6.32 Kernel To Be Maintained Longer

With Ubuntu 10.04 basing off the Linux 2.6.32 kernel and this distribution release being a Long-Term Support (LTS) release that will be maintained longer than normal Ubuntu releases -- and other vendors using the Linux 2.6.32 kernel for their enterprise updates too -- this kernel will live on longer as well.
19 January 2010 - Long-Term Stable Release - 27 Comments

Linux 2.6.33-rc4 Kernel: 40% DRM Changes

One week after pushing out the third release candidate for the Linux 2.6.33 kernel, Linus Torvalds has issued the fourth release candidate. In his mailing list announcement, Linus characterizes the Linux 2.6.33-rc4 kernel as being an "odd release" as a bulk of the changes "all pretty unusual." What got changed? Well, lots of new Direct Rendering Manager (DRM) code ended up getting pulled.
13 January 2010 - Many DRM Updates - 18 Comments

Linux 2.6.33-rc3 Kernel Released

As the first post-holiday kernel update, Linus Torvalds has put out the Linux 2.6.33-rc3 kernel release. This new release candidate for the Linux 2.6.33 kernel brings in some EXT4 file-system updates, switching the recommended IEEE-1394 Firewire stack to the new stack, various driver updates, and much more.
6 January 2010 - New Devel Update - 6 Comments

Linux 2.6.33-rc2 Kernel Released

As a Christmas (or holiday) gift to all Linux users, Linus Torvalds last night put out the Linux 2.6.33-rc2 kernel release. This is the second release candidate since the closing of the Linux 2.6.33 kernel merge window, that brought the long-awaited Nouveau driver, many other graphics improvements, and other exciting changes.
25 December 2009 - Brings More Code - 5 Comments

Linux 2.6.33-rc1 Kernel Released

Linus Torvalds has just announced that the merge window for the Linux 2.6.33 kernel has closed and as a result he has pushed out Linux 2.6.33-rc1. The first release candidate for Linux 2.6.33 delivers on a plethora of new code, including the long-awaited Nouveau driver (which Linus mentions in the 2.6.33-rc1 announcement) and many graphics DRM improvements. Among the DRM changes to be delivered by the Linux 2.6.33 kernel include Radeon HDMI audio, R600/700 IRQ support, the KMS page-flipping ioctl, VMware's new driver, Intel driver improvements, and many core enhancements to the Direct Rendering Manager.
17 December 2009 - Hoorah! - 30 Comments

Radeon HDMI Audio Set For Linux 2.6.33 Kernel

The Direct Rendering Manager code in the Linux 2.6.33 kernel has received many improvements including the KMS page-flipping ioctl, DisplayPort monitor support for ATI KMS, R600/700 interrupts support, support for unreleased Intel IGPs, and many other changes. Coming after this initial pull request was also the Nouveau DRM driver and VMware's vmwgfx DRM driver. The graphics fun for the Linux 2.6.33 kernel though is not yet over.
16 December 2009 - Another DRM Win - 21 Comments

A Great Present In The Linux 2.6.33 Kernel

David Airlie has just called upon Linus Torvalds to pull in the latest DRM patches for inclusion into the Linux 2.6.33 kernel. The Direct Rendering Manager improvements in this next kernel release will be particularly interesting and are perhaps as significant as earlier kernels that had introduced kernel mode-setting support for Intel and ATI/AMD hardware along with in-kernel memory management. The changes that the Linux 2.6.33 kernel will bring are aplenty and will impact almost all of those using an open-source graphics driver stack.
10 December 2009 - Its DRM - 13 Comments

VMware Goes For Mainline Inclusion Of Its DRM

VMware is preparing to propose that its "vmwgfx" DRM kernel driver be pushed into the mainline DRM tree and in turn will then be pulled into the mainline Linux kernel -- as soon as the Linux 2.6.33 kernel. VMware's Jakob Bornecrantz (formerly of Tungsten Graphics) is calling for comments on the two patches that introduce the vmwgfx C header file and then the Direct Rendering Manager code itself. This code will initially be put into the kernel's staging tree and then in a release or two should be found within the main DRM directory.
9 December 2009 - vmwgfx DRM For Linux - 11 Comments

Linux 2.6.32 Kernel Released

Just as planned, Linux 2.6.32-rc8 was the last test release and the final Linux 2.6.32 kernel is now available as of last night.
3 December 2009 - Woohoo!! - 5 Comments

DRM Change Continues To Cause Debate

Kristian Høgsberg on the 6th of November had wrote a message on the DRI development list regarding the libdrm repository. With so much of the Direct Rendering Manager (DRM) work going straight into the Linux kernel -- thanks in large part to all of the work on memory management and kernel mode-setting -- Kristian proposed that the DRM driver code be removed from the separate DRM Git tree. With this message, Kristian created a new DRM repository that dropped all of the linux-core, bsd-core, and shared-core code. Seems simple and straightforward, right? Well, three weeks later with dozens of replies, this change is continuing to cause debate.
29 November 2009 - Still Going On... - 9 Comments

The Linux 2.6.32 Kernel Is Near, RC8 Released

Linus Torvalds this afternoon put out the Linux 2.6.32-rc8 kernel release. The Linux 2.6.32 kernel, which brings 3D DRM and KMS support for ATI R600/700 GPUs, new wireless drivers, an improved VIA frame-buffer, and other improvements, is getting ready for release. Linus expects 2.6.32-rc8 to be the last release candidate if all goes according to plan.
19 November 2009 - This Month - 1 Comment

Linux 2.6.32-rc7 Kernel Released

While there is already work building up for the Linux 2.6.33 kernel like the just talked about KMS page-flipping ioctl, we are still in the middle of the Linux 2.6.32 development cycle. Linus Torvalds has just issued the 2.6.32-rc7 release after it was delayed by another serious -- but now fixed -- regression (this time in the resume support).
12 November 2009 - Kernel Update

Another Shot At The KMS Page-Flipping Ioctl

Being worked on for the past several months by Kristian Høgsberg and other developers has been the KMS page-flipping ioctl, which makes it possible for kernel mode-setting drivers to benefit from tear-free updating of the screen with low-latency page-flipping. This kernel DRM ioctl is also a requirement for the Wayland Display Server. The page-flipping ioctl should have made it into the Linux 2.6.32 kernel, but it didn't end up happening due to some last minute work.
12 November 2009 - Kristian Tries Again - 7 Comments

Linux 2.6.32-rc6 Kernel Now Released

The Linux 2.6.32-rc5 kernel was released over two weeks ago, but it was not until today that 2.6.32-rc6 was tagged. This is not because of Linus's affection towards Windows 7, but rather the Linux Kernel Summit that was taking place in Tokyo and a nasty data-loss-causing EXT4 regression had to be tracked down and addressed. Linux 2.6.32-rc6 is available though right now and it carries a good number of changes considering the time-span between releases, including some regression fixes that were introduced during the 2.6.31 cycle and various driver updates.
3 November 2009 - Two Weeks After -RC5

Ryan Gordon Brings Universal Binaries To Linux

One of the interesting features of Mac OS X is its "universal binaries" feature that allows a single binary file to run natively on both PowerPC and Intel x86 platforms. While this comes at a cost of a larger binary file, it's convenient on the end-user and on software vendors for distributing their applications. While Linux has lacked such support for fat binaries, Ryan Gordon has decided this should be changed. This professional game porter has created the FatELF project, which basically brings the universal binaries feature to Linux. The FatELF file format allows multiple binaries for different architectures to be embedded into a single file. Ryan may take this even further by introducing the ability for Solaris and FreeBSD binaries to be embedded into a FatELF as well.
22 October 2009 - And Maybe FreeBSD / Solaris - 39 Comments

Linux 2.6.32-rc5 Kernel Released

The Linux 2.6.32-rc4 kernel was released merely four days ago, but as planned, the Linux 2.6.32-rc5 kernel is now available. This release candidate that just accumulates four days worth of patches is coming due to the annual Linux kernel summit that is coming up and will take Linus Torvalds and other key kernel developers away for a few days. Most of the changes though in Linux 2.6.32-rc5 come down to driver changes, with the addition of two new network drivers (stmmac and vmxnet3) and then various other updates.
15 October 2009 - Four Days Of Code - 5 Comments

1057 Linux Kernel news articles published on Phoronix.
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