Language Selection

English French German Italian Portuguese Spanish

Linux 5.12-rc1

Filed under

So two weeks have passed since the 5.11 release, and so - like
clockwork - the merge window for 5.12 has closed, and 5.12-rc1 is out
there for your perusal.

That said, we have now have two unusual merge windows in a row: first
we had the holiday season, and this time around the Portland area had
over a quarter million people without electricity because we had a
winter ice storm that took down thousands of trees, and lots of
electricity lines.

So I was actually without electricity for six days of the merge
window, and was seriously considering just extending the merge window
to get everything done.

As you can tell, I didn't do that. To a large part because people were
actually very good about sending in their pull requests, so by the
time I finally got power back, everything was nicely lined up and I
got things merged up ok.

But partly this is also because 5.12 is a smaller release than some
previous ones - and that wasn't due to the lack of electricity, that
showed independently in the statistics in the linux-next tree. Of
course, "smaller" is all relative, but instead of the 12-13+k commits
we've had the last few releases, linux-next this time only had 10+k
commits lined up. So that helped things a bit.

That said, if my delayed merging caused issues for anybody, please
holler and explain to me, and I'll be flexible during the rc2 week.
But that's _not_ a blanket "I'll take late pulls", that's very much a
"if my delayed merge caused problems for some tree, explain why, and
I'll work with you".

Anyway, on to the actual changes. Even if it was a slightly smaller
merge window than previous ones, it's still big enough that appended
is just my usual merge log, not the full list of the 10982 non-merge
commits by 1500+ people. So it's  more of a flavor of the kinds of
things that have happened rather than a deep dive.

The one thing that perhaps stands out is that this release actually
did a fair amount of historical cleanup. Yes, overall we still have
more new lines than we have removed lines, but we did have some spring
cleaning, removing the legacy OPROFILE support (the user tools have
been using the "perf" interface for years), and removing several
legacy SoC platforms and various drivers that no longer make any

So even if we more than made up for that with all the _new_ drivers
and code we added, that kind of cleanup is always nice to see.


Read more

Also: Linux 5.12-rc1 Released As The "Frozen Wasteland" Kernel

More on RC1 of Linux 5.12

  • Kernel prepatch 5.12-rc1

    Linus Torvalds has released 5.12-rc1 (codename now "Frozen wasteland") and closed the merge window despite getting a late start due to bad weather...

  • Linux 5.12 "Frozen Wasteland" rc1 Is Released

    Linux Torvalds managed to release Linux 5.12 rc1 on schedule even though he was without power for six days during the critical merge-window. The Linux kernels Makefile was appropriately updated with a new kernel release NAME = Frozen Wasteland.

Linus Torvalds went six days without electricity

  • Linus Torvalds went six days without electricity, swears smaller 5.12 kernel is co-incidental

    Linux overlord Linus Torvalds has revealed that inclement weather in the USA meant he recently endured six electricity-free days in his Portland, Oregon, home during which he was unable to tend to the kernel. As a result he therefore pondered adding an extra week to the merge window for version 5.12 of the Linux kernel.

    “As you can tell, I didn't do that,” he said in his State of The Kernel update that announced release candidate one of the new Kernel cut. “To a large part because people were actually very good about sending in their pull requests, so by the time I finally got power back, everything was nicely lined up and I got things merged up ok.”

    It wasn’t just penguinistas behaving well that helped. Torvalds said this version of the kernel has received around 10,000 commits. That’s rather fewer than the 12,000 or 13,000 he usually sees.

Linus Torvalds reveals why the latest Linux kernel was almost

  • Linus Torvalds reveals why the latest Linux kernel was almost seriously delayed

    The recent icy storms that battered most of the United States left Linux kernel’s head-honcho Linus Torvalds without electricity, holding up the release of the latest release.

    A resident of Portland, Torvalds even considered delaying the launch of the next development version due to the outage that left over a quarter million people without electricity in the Portland area.

Linus Torvalds battles power cuts

  • Linus Torvalds battles power cuts to keep Linux releases rolling out

    Linux kernel chief Linus Torvalds has announced the first release candidate of Linux 5.12 after a merge window that was hampered by power outages in the US north west.

    It's only been two weeks since stable Linux kernel 5.11 was released, and now the Linux kernel project is back with the first release candidate for version 5.12 after closing its merge window.

Making the news about Linus, not Linux

  • 6 days without electricity: What the inventor of Microsoft Windows-rival Linux did

    Linus Torvalds, the founder of the Linux operating system, recently had to face six days without electricity during the power outages in the North-Western US caused due to the winter storms. He lives in Portland, Oregon and the six-day power outage did not let him tend to the kernel. So, how did the inventor spend his time? By working on the merge window for version 5.12 on the Linux kernel. Torvalds gave the Linux 5.12-rc1 the codename of ‘Frozen Wasteland’ and issued the first release on February 28, as per a report by Phoronix.

    Unable to work on the new kernel cycle due to the six-days-long power cut, Torvalds decided to attend to the Linux 5.12 merge window and succeeded in rolling it out as Linux 5.12-rc1.
    He said in the 5.12-rc1 announcement: “The one thing that perhaps stands out is that this release actually did a fair amount of historical cleanup. Yes, overall we still have more new lines than we have removed lines, but we did have some spring cleaning, removing the legacy OPROFILE support (the user tools have been using the "perf" interface for years), and removing several legacy SoC platforms and various drivers that no longer make any sense."

Linux Kernel 5.12 RC-1 Released with Many ARM Board Support

  • Linux Kernel 5.12 RC-1 Released with Many ARM Board Support

    The merge window for Linux Kernel 5.12 is closed and with that, Linux Kernel 5.12 RC-1 (release candidate) is now released for testing. This release brings many new features and improvements.

    Linux Kernel 5.12 is going to be the second Kernel release of 2021 following the Kernel 5.11. This release is bringing moderate changes across the Kernel modules. The changes are also not that much compared to the prior releases due to the power cut which is faced by Linus Torvalds for winter ice storm.


    Overall, many changes are seen on small form factor devices and the addition of drivers for many new devices across vendors in Linux Kernel 5.12 RC-1. Usual changes across the storage and graphics phase. This means it is going to be a quiet Kernel release.

    Linux Kernel 5.12 will be available with mainstream Linux distributions most probably from Q3 2021 onwards. The LTS releases would stick to the current stable Linux Kernel 5.10.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

Best Apps to Install on Linux Mint in 2021

Linux Mint is a popular Linux distro alongside Ubuntu. There is not much difference between the functionalities and features of the two. Hence, the various app that is compatible with Ubuntu also works effortlessly on Linux Mint. The advantage of using Linux distros and apps is that most are free and open-source. As Linux Mint is an alternative to Ubuntu, you can find an alternative to every popular and widely used app. Thus, there is no scarcity of apps in each category. However, finding a reliable app is not an easy task because of so many options. Read more

KDE Frameworks 5.81 Released with KHamburgerMenu, Various Improvements

The biggest new feature in the KDE Frameworks 5.81 release is the implementation of a new, custom hamburger menu called KHamburgerMenu, which will be shown on QWidgets-based apps whenever the main menubar is hidden. The KDE Project plans to adopt the KHamburgerMenu for all KDE apps as it offers several advantages, including an alternative app menu in case you hide the default menubar by accident, more freedom when you want to take full advantage of the maximum vertical space, more compact design with only relevant menu items, as well as support for relocating, renaming, removing, or even changing its icon. Read more

today's leftovers

  • Radeon Vulkan Driver Adds Option Of Rendering Less For ~30% Greater Performance - Phoronix

    If your current Vulkan-based Radeon Linux gaming performance isn't cutting it and a new GPU is out of your budget or you have been unable to find a desired GPU upgrade in stock, the Mesa RADV driver has added an option likely of interest to you... Well, at least moving forward with this feature being limited to RDNA2 GPUs for now. RADV as Mesa's Radeon Vulkan driver has added an option to allow Variable Rate Shading (VRS) via an environment variable override. This RADV addition is inspired by the likes of NVIDIA DLSS for trading rendering quality for better performance but in its current form is a "baby step" before being comparable to DLSS quality and functionality.

  • Bas Nieuwenhuizen: A First Foray into Rendering Less

    In RADV we just added an option to speed up rendering by rendering less pixels. These kinds of techniques have become more common over the past decade with techniques such as checkerboarding, TAA based upscaling and recently DLSS. Fundamentally all they do is trading off rendering quality for rendering cost and many of them include some amount of postprocessing to try to change the curve of that tradeoff. Most notably DLSS has been widly successful at that to the point many people claim it is barely a quality regression. Of course increasing GPU performance by up to 50% or so with barely any quality regression seems like must have and I think it would be pretty cool if we could have the same improvements on Linux. I think it has the potential to be a game changer, making games playable on APUs or playing with really high resolution or framerates on desktops. [...] VRS is by far the easiest thing to make work in almost all games. Most alternatives like checkerboarding, TAA and DLSS need modified render target size, significant shader fixups, or even a proprietary integration with games. Making changes that deeply is getting more complicated the more advanced the game is. If we want to reduce render resolution (which would be a key thing in e.g. checkerboarding or DLSS) it is very hard to confidently tie all resolution dependent things together. For example a big cost for some modern games is raytracing, but the information flow to the main render targets can be very hard to track automatically and hence such a thing would require a lot of investigation or a bunch of per game customizations.

  • Dota 2 version 7.29 is out with the new Dawnbreaker melee hero

    Valve has put out a major upgrade for their popular free to play MOBA with Dota 2 getting Dawnbreaker. This brand new hero is focused on melee, with a low-skill entry level so it should be suitable for a lot of players. You can see a dedicated hero page for Dawnbreaker here. "Dawnbreaker shines in the heart of battle, happily crushing enemies with her celestial hammer and healing nearby allies. She revels in hurling her hammer through multiple foes and then converging with it in a blazing wake, always waiting to tap her true cosmic power to fly to the aid of her teammates — eager to rout her enemies on the battlefield no matter where they are."

  • Grape times ahead with the release of Wine 6.6 noting plenty of fixes

    No wine-ing about the puns please. Jokes aside, the tasty compatibility tech that is Wine has a new development release available today with Wine 6.6. For newer readers and Linux users here's a refresher - Wine is a compatibility layer built for operating systems like Linux, macOS and BSD. The idea is to allow other platforms to run games and applications only built and supported for Windows. It's also part of what makes up Steam Play Proton. Once a year or so, a new stable release is made.

  • Friday’s Fedora Facts: 2021-14

    Here’s your weekly Fedora report. Read what happened this week and what’s coming up. Your contributions are welcome (see the end of the post)! The Final freeze is underway. The F34 Final Go/No-Go meeting is Thursday. I have weekly office hours on Wednesdays in the morning and afternoon (US/Eastern time) in #fedora-meeting-1. Drop by if you have any questions or comments about the schedule, Changes, elections, or anything else. See the upcoming meetings for more information.

  • A developer goes to the Masters: Day 1 inside the digital ops center [Ed: IBM is OK with the word "Master" again, contrary to spin]
  • Rancher Platform Partner, Weka delivers Stateful Storage for Containers at Scale

    Containers rose to the mainstream primarily due to workload portability and immutability advantages. Kubernetes became the primary orchestration tool and was initially supporting stateless applications, commonly referred to as the cattle vs. pets approach. However, data-centric applications need stateful-ness while still leveraging the cattle vs. pet approach. Microservices, Containers, and Kubernetes are now moving mainstream as increasingly more stateful applications are adopting them.

  • SUSE for your agile data platform, featuring Microsoft SQL Server[Ed: SUSE is just a worthless proprietary software reseller for SAP and Microsoft (their salesperson from SAP signing anti-RMS petition makes perfect sense and proves us correct about SUSE's motivations)]
  • What's the point of open source without contributors? Turns out, there are several [Ed: Mac Asay isn't even using it himself, just lecturing others what to do while working for Jeff Bezos]
  • Am I FLoCed? A New Site to Test Google's Invasive Experiment

    FLoC is a terrible idea that should not be implemented. Google’s experimentation with FLoC is also deeply flawed . We hope that this site raises awareness about where the future of Chrome seems to be heading, and why it shouldn't.

    FLoC takes most of your browsing history in Chrome, and analyzes it to assign you to a category or “cohort.” This identification is then sent to any website you visit that requests it, in essence telling them what kind of person Google thinks you are. For the time being, this ID changes every week, hence leaking new information about you as your browsing habits change. You can read a more detailed explanation here .

    Because this ID changes, you will want to visit often to see those changes.

  • The Brave browser basics: what it does, how it differs from rivals

    Boutique browsers try to scratch out a living by finding a niche underserved by the usual suspects. Brave is one of those browsers.

    Brave has gotten more attention than most alternate browsers, partly because a co-founder was one of those who kick-started Mozilla's Firefox, partly because of its very unusual — some say parasitical — business model.

Devices/Embedded Hardware

  • 3.5-inch SBC features Comet Lake-S

    Aaeon’s 3.5-inch Linux-ready “GENE-CML5” SBC supplies an up to octa-core 10th Gen Core CPU plus up to 64GB DDR4, 2x SATA, 2x GbE, 2x USB 3.2 Gen2, DP, VGA, M.2 M-key, and PCIe x4. Aaeon has posted a preliminary product page for what appears to be the first 3.5-inch SBC built around Intel’s 10th Gen Comet Lake-S. In fact, this is one of the first Comet Lake SBCs of any kind, following a few early entries like Portwell’s WADE-8212 Mini-ITX board.

  • Play your retro console on a modern TV
  • Olimex RP2040-PICO-PC “computer” to feature RP2040-Py Raspberry Pi Pico compatible module

    We previously wrote it was possible to create a Raspberry Pi RP2040 board with HDMI using DVI and programmable IOs to output video up to 640×480 at 60 Hz with the microcontroller’s Cortex-M0+ cores clocked at 252 MHz. At the time, we also noted Olimex was working on such a board with RP2040-PICO-PC designed to create a small Raspberry Pi RP2040 computer with HDMI/DVI video output. The Bulgarian company has now manufactured the first prototype, but due to supply issues with the Raspberry Pi Pico board, they also designed their own RP2040-PICO module since they’ve got a reel of Raspberry Pi RP2040 microcontrollers.

  • Our most complex Open Source Hardware board made with KiCad – the octa core iMX8 Quad Max – Tukhla is completely routed and now on prototype production

    We started this project June-July 2020. Due to the Covid19 the development took 10 months although only 6 month of active work was done, due to lock downs, ill developers and so on troubles.

    Now the board is completely routed and has these features: [...]