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Linux Kernel 5.17 Officially Released, This Is What’s New

Submitted by Marius Nestor on Sunday 20th of March 2022 08:53:10 PM Filed under
Linux
News

A little over two months after the release of Linux kernel 5.16, the Linux 5.17 kernel series is here to introduce even more new features, such as a new “AMD P-State” subsystem for future AMD CPUs that to provide a performance boost, a revamped fscache subsystem, as well as a new “page-table check” feature to better protect your GNU/Linux system from certain threats by detecting some types of corruption and automatically shutting down the system.

Linux kernel 5.17 also adds recursive support for id-mapped mounts, adds support for KCSAN (kernel concurrency sanitizer) for the AArch64 (ARM64) architecture, adds support for a new event type called FAN_RENAME to the fanotify subsystem, adds support for KFENCE, which can now detect missing memory barriers, to 32-bit ARM architectures, and adds a new syntax that would benefit Ceph file system mounts.

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LWN and original

Submitted by Roy Schestowitz on Sunday 20th of March 2022 09:25:20 PM.
  • The 5.17 kernel has been released [LWN.net]

    Some of the significant features in this release include KCSAN support for the arm64 architecture, the bpf_loop() helper, ID-mapped filesystem mounts, the reference-count tracking infrastructure, a switch to BLAKE2s for the random-number generator, a rewritten network filesystem caching layer, straight-line speculation mitigation, and more. See the LWN merge-window summaries (part 1, part 2) and the KernelNewbies 5.17 page for more details.

  • Linux 5.17 [LWN.net]
    So we had an extra week of at the end of this release cycle, and I'm
happy to report that it was very calm indeed.  We could probably have
skipped it with not a lot of downside, but we did get a few
last-minute reverts and fixes in and avoid some brown-paper bugs that
would otherwise have been stable fodder, so it's all good.

And that calm last week can very much be seen from the appended
shortlog - there really aren't a lot of commits in here, and it's all
pretty small. Most of it is in drivers (net, usb, drm), with some core
networking, and some tooling updates too.

It really is small enough that you can just scroll through the details
below, and the one-liner summaries will give a good flavor of what
happened last week.

Of course, this means that the merge window for 5.18 will be open
starting tomorrow, and I already have about a dozen pull requests
waiting in my inbox. I appreciate the early pull requests: it gives me
that warm and fuzzy feeling of "this was all ready in plenty of time".
Judging by the statistics in linux-next, it looks like 5.18 will be a
bit bigger than 5.17 was, but hopefully without some of the drama.

So go test this, and we'll get 5.18 started tomorrow.

                   Linus

Linux Kernel 5.17 Released

Submitted by Roy Schestowitz on Sunday 20th of March 2022 10:02:48 PM.
  • Linux Kernel 5.17 Released, This is What's New - OMG! Ubuntu!

    A brand new version of the Linux kernel is available to download.

    Linux 5.17 arrives a week later than initially planned, and features a canny crop of changes, improvements, performance enhancements, and all-important security fixes.

    Linus Torvalds, announcing the release on the Linux Kernel Mailing List, says the one-week delay (to account for lately-revealed security issues) meant “…we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it’s all good.”

    So what’s new?

Linux Kernel 5.17 Brings New Hardware Support And Steam Deck...

Submitted by Roy Schestowitz on Monday 21st of March 2022 07:46:41 AM.

Linux 5.17 release – Main changes, Arm, RISC-V, and MIPS...

Submitted by Roy Schestowitz on Monday 21st of March 2022 08:59:14 AM.
  • Linux 5.17 release - Main changes, Arm, RISC-V, and MIPS architectures - CNX Software

    Introduced in January, the previous release of Linux 5.16 enabled improved Wine and Linux game performance with a new futex_waitv() system call, faster memory management with the memory folios infrastructure, file system health reporting (for EXT-4 only at the time), and plenty of other changes including over 60 new Arm-based boards and devices.

2 More

Submitted by Roy Schestowitz on Monday 21st of March 2022 09:01:05 AM.
  • Linux Kernel 5.17 Officially Released

    As usual, Linus Torvalds made an announcement of the release and general availability of Linux 5.17.

  • Linux 5.17 debuts after 'very calm' extra week of work

    Linus Torvalds has released version 5.17 of the Linux kernel.

    "So we had an extra week of at the end of this release cycle, and I'm happy to report that it was very calm indeed," Torvalds wrote in his weekly state of the kernel post. "We could probably have skipped it with not a lot of downside, but we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it's all good," he added.

Linux 5.17 is out now with new AMD P-State driver

Submitted by Roy Schestowitz on Monday 21st of March 2022 09:57:54 AM.
  • Linux 5.17 is out now with new AMD P-State driver

    Linus Torvalds has announced the release of the Linux Kernel version 5.17, with one of the most prominent features being the new AMD P-State driver for modern CPUs.

    From the release announcement: "So we had an extra week of at the end of this release cycle, and I'm happy to report that it was very calm indeed. We could probably have skipped it with not a lot of downside, but we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it's all good."

Linux 5.17 arrives: Here's what's inside

Submitted by Roy Schestowitz on Monday 21st of March 2022 02:58:48 PM.
  • Linux 5.17 arrives: Here's what's inside

    Linux kernel leader Linus Torvalds has officially taken the wraps off the Linux kernel version 5.17, which brings changes to software interfaces involving hardware from Intel, AMD, and Arm-based manufacturers.

    In a world where Android and cloud infrastructure defines technology, new Linux kernel versions are important events.

Linux Kernel 5.17 Released

Submitted by Roy Schestowitz on Tuesday 22nd of March 2022 03:51:57 AM.

  • Linux Kernel 5.17 Released, With Major Security Fixes But Not Much Else

    The latest version of the Linux kernel, 5.17, has been released with bug fixes to reassure users worried about Spectre attacks and improve hardware support, despite a short delay. The security changes and hardware support are welcome, but apart from that, there's not much to get excited by with this release.

Linux 5.17 released: Bootlin contributions

Submitted by Roy Schestowitz on Wednesday 23rd of March 2022 10:30:27 AM.
  • Linux 5.17 released: Bootlin contributions

    Linux 5.17 has been released last Sunday. As usual, the best coverage of what is part of this release comes from LWN (part 1 and part 2), as well as KernelNewbies (unresponsive at the time of this writing) or CNX Software (for an ARM/RISC-V/MIPS focused description).

    Bootlin contributed just 34 patches to this release, which isn’t a lot by the number of patches, but in fact includes a number of important new features. Also, we have many more contributions being discussed on the mailing lists or in preparation. For this 5.17 release here are the highlights of our contributions...

Kernel 5.17: Solid & steady

Submitted by Roy Schestowitz on Friday 1st of April 2022 10:06:34 AM.
  • Kernel 5.17: Solid & steady

    Our CODEC team has pushed forward VP9 hardware codec support on the Linux kernel. The fine-tuned VP9 uABI has been released, enabling decoders to enqueue encoded frames without waiting until a previous frame completes. This is due to the improved probabilities update process, which frees the userland from the dependency on the previously decoded frames.

    In addition, video decoders on Rockchip SoCs (RK3399: RkVDEC), NXP SoCs (IMX8MQ: Hantro), and several others now offer hardware support for decoding VP9 byte-streams.

    As the new Kernel drivers are stateless, the driver requires a user-space application to handle the state (picture order, references, etc.) of the decoder. There are multiple available solutions. One notable option is GStreamer, which includes support for managing a VP9 hardware decoder, a feature contributed by our CODEC team at the end of last year.

    Google's VP9 codec, which is heavily used on YouTube, is a major competitor to the widely popular HEVC codec. It is specialized for high-resolution video and provides better compression efficiency than codecs like MPEG-4.

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