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Features Added So Far To The Linux 3.19 Kernel

We're now half-way through the Linux 3.19 kernel merge window so here's a recap of the most interesting features that have been merged thus far for what will become the first major Linux kernel release of 2015.

Among the changes found to be most interesting so far for Linux 3.19 include:

- Many DRM graphics driver updates! There's a lot of good stuff from AMD HSA's AMDKFD driver to Intel Skylake support to tons of improvements to all of the prominent drivers. There's also the new Rockchip DRM driver and improvements for the iMX and MSM ARM drivers too. Read that article as there's way too many DRM changes to list here in this summary.

- The read-only SquashFS file-system commonly used by live Linux distributions has LZ4 compression support.

- RAID 5/6 improvements for Btrfs along with other enhancements to this next-generation Linux file-system.

- Various XFS improvements.

- Faster boot times and improvements for the F2FS flash file-system.

- Bug-fixes for EXT4.

- Multi-queue block layer enhancements including the NVMe driver supporting this faster interface.

- DM performance optimizations.

- Multi-layer support for OverlayFS.

- Lots of MIPS architecture updates.

- ARM's CoreSight framework was finally merged for improving ARM tracing and debugging.

- VirtIO and Xen updates.

- Better multi-touch support for more Logitech input hardware.

- A lot of sound driver updates.

- MPX extension support on the kernel-side, a CPU instruction set extension found with Intel Skylake CPUs.

- Numerous ACPI+PM improvements for bettering Linux power management.

Stay tuned to Phoronix for coverage of the rest of the Linux 3.19 merge window pull requests this week. Expect the Linux 3.19-rc1 kernel to be released around next weekend.

http://www.phoronix.com/scan.php?page=news_item&px=MTg2Mzk


Mais uma grande lista de melhorias para o próximo kernel v3.19.
 
Alguém aqui com o Kernel 3.18 instalado em Mint 17 qiana?! Eu tenho a versão 3.16 super estável, mas sempre que tento instalar as seguintes (3.17 ou 3.18) dá-me erro de instalação de kernel e/ou dá erro ao iniciar...
 
Sim claro, mas por exemplo a release 3.17 tem uma melhor optimização de memória e outros recursos, nada mais! Se bem que com o meu sistema não se vá notar muito...
 
Live Patching Support Planned For Linux 3.20/4.0 Kernel

It looks like for the Linux 3.20 kernel is when the new kernel live patching technology will be integrated to mainline.

This year there's been kGraft and Kpatch in development as new live kernel patching solutions to reduce downtime when applying maintenance/security updates to the kernel by avoiding system reboots, similar in nature to Ksplice. These solutions were devised independently by Red Hat and SUSE while more recently a unified infrastructure combining both kGraft and Kpatch was proposed. It looks like for Linux 3.20 is when that code will be merged.

It's too late for the live patching code to enter Linux 3.19 and making known the Linux 3.20 merging plans was SUSE Labs' Jiri Kosina asking for the live patching tree to be added to linux-next, the sort of staging area for code planned to be merged into the mainline Linux kernel tree in the releases ahead.

Kosina wrote, "a substantial amount of work has been invested into abstracting 'Live Patching' core functionality out of the already existing implementations, so that further improvements can be built on top of it in incremental steps. The core functionality (which is self-contained) now works and has been Reviewed/Acked by both interested parties (i.e. people working on kPatch and kGraft) and agreed to be a common ground on which further development will happen."

This initial code, per Kosina's message, is planned to see a pull request for Linux 3.20. Though based upon earlier messages by Linus Torvalds, Linux 3.20 might become Linux 4.0 if his talk from 2013 holds true.
http://www.phoronix.com/scan.php?page=news_item&px=MTg3MTE

Finalmente :)
 
Boas malta...

Eu costumo sacar da net (quando consigo encontrar) 3 pacotes para actualizar o Kernel do meu Debian para as versões stable mais recentes, mas é sempre uma luta encontrar esses 3 pacotes porque normalmente são diferentes de distribuição para distribuição.

Para o meu caso, que estou com Debian Jessie e Kernel 3.17.1, onde posso encontrar esses 3 pacotes destinados à minha distro correspondents por exemplo à versão 3.18.6?
 
Tens o 3.18.5 no repositório experimental, é capaz de ser a forma mais fácil de instalar.
Mas onde encontro esses files???

Por exemplo para Ubuntu encontro o seguinte:


É destes 3 files que eu ando à procura mas para Debian Jessie 64bit!
 
Se usares o repositório experimental não precisas dos ficheiros, usas o apt-get (mas é o 3.18.5). Claro que se quiseres também podes fazer download dos ficheiros e instalar com o dpkg.
 
Mas onde encontro esses files???

Por exemplo para Ubuntu encontro o seguinte:



É destes 3 files que eu ando à procura mas para Debian Jessie 64bit!

o jessie está em freeze , o que significa que vai ficar pelo 3.16 , em debian se preferires um kernel superior tens que esperar pela next-stable
release e adicionares o repo backports onde costumam disponiblizar kernel superiores , ou usas repo unstable ou experimental
 
Se usares o repositório experimental não precisas dos ficheiros, usas o apt-get (mas é o 3.18.5). Claro que se quiseres também podes fazer download dos ficheiros e instalar com o dpkg.

E onde posso fazer o download desses files?

o jessie está em freeze , o que significa que vai ficar pelo 3.16 , em debian se preferires um kernel superior tens que esperar pela next-stable
release e adicionares o repo backports onde costumam disponiblizar kernel superiores , ou usas repo unstable ou experimental

Está em freeze porquê? O que é que isso significa? Eu neste momento estou com o 3.17.1-exp!
 
Da mesma maneira que instalaste esse 3.17.1, podes instalar o 3.18.6.

Sim mas eu já não sei de onde saquei os que tenho da versão 3.17.1... Instalar sei instalar, sacar é que não consigo encontrar uma fonte onde lá esteja explícito "Para Debian Jessie 64it" e se sacar uns à toa, o mais certo é fazer asneira.

O freeze significa que já estão prestes (embora este prestes seja subjectivo ;)) a lançar esta versão como estável, passando a actual para obsoleta. Quando entra em freeze já não passam o software da instável para esta.
Mas podes ver estas páginas:
https://www.debian.org/releases/
https://www.debian.org/releases/jessie/

Pois, isso eu tenho mais ou menos essa noção. A imagem de fundo que aparece no meu Desktop diz "Debian 8". Mas em termos de repos eu tenho usado os default!!!
 
Sim mas eu já não sei de onde saquei os que tenho da versão 3.17.1... Instalar sei instalar, sacar é que não consigo encontrar uma fonte onde lá esteja explícito "Para Debian Jessie 64it" e se sacar uns à toa, o mais certo é fazer asneira.

Pois, isso eu tenho mais ou menos essa noção. A imagem de fundo que aparece no meu Desktop diz "Debian 8". Mas em termos de repos eu tenho usado os default!!!

Não tens de sacar nada, tens de configurar o repositório experimental e depois instalar o kernel a partir de lá (com o apt-get, por exemplo).
 
Linux 3.19 Kernel Released

The Linux 3.19 kernel is now officially available.

The Linux 3.19 kernel was tagged in Git close to an hour ago now. Surprisingly, as of writing this news post, Linus Torvalds has yet to issue any Linux 3.19 release announcement but things went according to plan as per last week with the plans for 3.19 final.

Linux 3.19.0 is codenamed "Diseased Newt", which is the same codename since Linux 3.18-rc3.

If you're not already familiar with the many exciting changes/features for Linux 3.19 given the coverage by dozens of Phoronix articles on Linux 3.19, see earlier today's The Best Changes & Features Of The Linux 3.19 Kernel.

Now to get excited for the Linux 3.20 kernel, which originally Linus spoke of being Linux 4.0.

http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.19-Kernel-Released

The Best Changes & Features Of The Linux 3.19 Kernel

- Open-source AMD HSA is closer to reality with the landing of the AMDKFD driver that can be used in conjunction with AMD's Radeon Gallium3D stack and their new HSA library to provide basic support for HSA with basic OpenCL kernels. The open-source HSA Linux support is continuing to be polished over the months ahead.

- Initial hardware enablement for Intel's next-generation Skylake graphics. While Broadwell hardware is just starting to appear in many designs, Intel has already started pumping out a lot of Skylake Linux code.

- DPM fan control support within the Radeon driver to help out some noisy modern graphics cards with the open-source driver.

- Basic support for the NVIDIA GeForce 900 series albeit this Nouveau driver support doesn't yet include hardware acceleration.

- Btrfs RAID 5 / RAID 6 improvements at long last.

- LZ4 compression in SquashFS.

- Improved multi-touch support.

- Reworked ThinkPad muting button changes.

http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.19-Kernel-Features
 
New & Improved Media Drivers For The Linux 3.20 Kernel
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Kernel-Media-Drivers

XFS File-System Changes For Linux 3.20 Are Quite Modest
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Kernel-XFS-FS

Linux 3.20 To Support New HID Hardware, Improve Logitech HID++ Support
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-HID-Features

Live Kernel Patching Support Called For Linux 3.20 Kernel
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Live-Patching

Scheduler Changes In Linux 3.20 Has Micro-Optimizations, Might Yield Power Savings
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Scheduler-Changes

New Input Drivers Coming To Linux 3.20
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Input-Drivers

Power Management For Linux 3.20: SFI CPUFreq, Skylake P-State, New AMD ACPI Driver
http://www.phoronix.com/scan.php?page=news_item&px=Linux-3.20-Kernel-ACPI-PM
 
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Thread de publicidade ao Phoronix =D
Nada de excepcional para o utilizador convencional, só o suporte a mais HID. Lá vai o tempo em que isto era emocionante. :p
 
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