The current Linux kernel CPU hot-plugging support has been described as "an increasing nightmare full of races and undocumented behaviour", but fortunately it's in the process of being re-developed.
Generating a fair amount of attention today is word that when booting modern versions of Ubuntu -- and other Linux distributions -- on Samsung laptops that utilize UEFI, Linux can actually brick the system. There's now an urgent Linux kernel patch underway.
Open-source developers are still pursuing the feat of building the mainline Linux kernel with the LLVM/Clang compiler rather than GCC.
The Reiser4 file-system has been ported to run on the Linux 3.7 kernel. Separately, TRIM/DISCARD support for Reiser4 on solid-state drives is being discussed amongst the remaining Reiser4 developers.
A set of patches that allow the Linux kernel image to be compressed with the LZ4 lossless compression algorithm have been published. The size of LZ4-compressed Linux kernel images are larger than using LZO compression, but there's promise that the boot times could be better.
A set of "controversial" patches were published by Matthew Garrett this morning for the Linux kernel. One of the patch series will disable the kernel's support for kexec and hibernate support when running in a UEFI Secure Boot environment.
The Tux3 file-system has been in development for years while back on 1 January, the file-system work was resurrected. There's now an initial fsck implementation for Tux3.
In early December, Imagination Technologies ended up publishing 28 thousand lines of Linux kernel code, which ended up being a port of the open-source kernel for their Meta ATP/HTP processor cores. This Linux kernel port is looking to be merged to mainline for the Linux 3.9 kernel.
The fifth RC for the Linux 3.8 kernel has been quietly released.
A Google engineer has proposed "Fast Queue Spinlocks" for the Linux kernel as an alternative in select cases to the default ticket spinlock.
From the Linux Foundation's Consumer Electronics Workgroup is a Linux 3.4 kernel that's part of their Long-Term Support Initiative. The LTSI Linux 3.4 kernel will be maintained for two years while back-porting some of the features of newer Linux kernel releases.
The DRM KMS locking re-work patch series is ready and has been queued up for merging into the Linux 3.9 kernel.
Last week on the Linux kernel mailing list was a proposal for an Aggressive Low Memory Booster. This is potentially an interesting feature for Linux systems with limited amounts of RAM.
The Linux kernel is still being ported to new hardware. One of the latest processor families that has been receiving a Linux kernel port is the Synopsys ARC700 series.
Linus Torvalds released the fourth release candidate of the Linux 3.8 kernel on Thursday evening.
An experimental system device hot-plug framework for the Linux kernel is still being developed. This framework is meant to be commomon for system device hot-plugging for system devices like CPU and RAM while being platform-neutral.
It's been a long time coming, but Bcache might finally be merged soon into the mainline Linux kernel. Bcache provides a block-layer SSD cache for Linux with write-back and write-through support for solid-state drives.
Here's some of the improvements that the Intel open-source Linux graphics driver will see with the Linux 3.9 kernel release.
The third release candidate to the Linux 3.8 kernel was issued on Wednesday evening.
A second version of the Zswap patch-set for the Linux kernel was published this week. The Zswap patches provide compressed swap caching support to compress pages in the process of being swapped and compresses them into a dynamically allocated RAM-backed memory pool.
There's ongoing work so that graphics cards can be assigned for use by virtual machines with QEMU.
Affecting the latest Linux kernel release, Linux 3.7, are "multiple apparently unrelated network performance issues." The major network performance problems were reported by a well-known Linux kernel developer.
Linus Torvalds has announced the first development kernel update of 2013.
It's been a few years since last having anything to talk about with regard to the Tux3 file-system, but with the new year comes news on Tux3. This file-system has advanced and is more competitive now with EXT4.
KTAP is an experimental project that's a new dynamic tracing tool for Linux. KTAP has several different design principles from SystemTap, one of the current most common dynamic instrumentation and tracing tools for Linux. This new project might satisfy some of those developers that have been wanting Sun/Oracle's DTrace to come to Linux.
Over this weekend a new DRM pull request was submitted by David Airlie for the Linux 3.8 kernel.
A new driver has been written for supporting Intel QST, Quiet System Technology, on Linux.
While there's a lot of features that are new to the Linux 3.8 kernel as covered in The Feature Overview For The Linux 3.8 Kernel, there's also several promising new features and functionality that didn't make the cut for this next kernel release.
With the merge window having closed on the Linux 3.8 kernel, here's a comprehensive list of the most interesting features for this next major open-source kernel release.
While there's a lot of great stuff to the Linux 3.8 kernel, with the merge window recently closed, one feature that's long been lacking from the mainline Linux kernel is support for kernel mode-setting (KMS) on VIA graphics hardware.
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