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Linux RISC-V kernel hacker
Maintainer of T-Head TH1520 SoC

Thorsten Leemhuis (acct. 1/4)

Wanna know what's in store for 6.18, which most likely is to be released on November the 30th?

Then checkout these two @lwn articles now freely available (and consider subscribing):

* 6.18 merge window, part 1 – https://lwn.net/Articles/1040203/

* The end of the 6.18 merge window – https://lwn.net/Articles/1041004/

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Krzysztof Kozlowski

SoC maintainership in the Linux kernel (long time ago called arm-soc) is growing into a group of maintainers. Four new people joined @arnd for SoC: Alexandre Belloni, Linus Walleij and me (yay!) as co-maintainers, and @fustini as a reviewer:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b2a578f3127ab9ef80114cef9b20a2b42a8ee77a

Arnd, previously the sole SoC maintainer, handled pull requests and patches from several other sub-maintainers for each SoC sub-architecture (e.g. Qualcomm, NXP) and other driver trees. The SoC tree was one of the busiest, if not the busiest, trees in kernel - visible on @lwn.net graph: https://lwn.net/Articles/981742/

With this change the load will hopefully spread.
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URGENT: Adopters Needed for Dogs 🐾🐾
Multnomah County Animal Services is asking for help after they say kennels are now at 90% capacity. Fostering is also needed too
https://www.kptv.com/video/2025/10/16/multnomah-county-animal-services-seeks-adopters-after-kennels-reach-90-capacity/

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And my Kernel Recipes talk is now available: https://youtu.be/qYPCL1KGdQA

A big "Thank you!" to everyone involved!
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After letting them simmer for a few days, they’re finally ready! The videos are now online and waiting for you to watch. You’ll also find the presentation slides we’ve received so far.

Enjoy!

Slides and videos: https://kernel-recipes.org/en/2025/schedule/

Watch all the videos : https://www.youtube.com/playlist?list=PLQ8PmP_dnN7JIsjWbFPeRdze4MQHHkIm8

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The next Portland Linux Kernel Meetup has been scheduled for Oct 16th!

Hope to see folks there!

https://ikluft.github.io/pdx-lkmu/october-2025-portland-linux-kernel-meetup.html

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FYI the Portland Linux kernel meetup is still happening but we stopped paying for Meetup. Next one will be October 16th (Thu). Follow here https://groups.google.com/g/pdxkernel and https://ikluft.github.io/pdx-lkmu/
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Curious about how the day is going to go? The first four hours of the livestream looks like this! Join us on YouTube! https://www.youtube.com/watch?v=Yn0e7APWtnY

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The next Open Hardware Summit will be in Berlin! Follow @oshwassociation for more!

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We're moving into after noon programming! Check out who's speaking in the next four hours! Join us: https://www.youtube.com/watch?v=Yn0e7APWtnY

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@monsieuricon 'ChaosEsque Team' has been sending rude spam. Is it possible to block them on the kernel.org lists?
https://lore.kernel.org/all/CALC8CXeXUGGujKjZbzCTXa5iyrk5XGWaCXTvtQODu+HCEDOYmw@mail.gmail.com/
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Live now! Join @crowdsupply @helenleigh for a conversation with Tim Ansell (@mithro) about wafer.space, a new way for chip designers to easily turn a design into real, working chips: https://www.youtube.com/watch?v=tEOmnN8IAjs

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5m until we are live! http://youtu.be/tEOmnN8IAjs

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"register windows. It's like extended memory, but for your registers!"
https://lore.kernel.org/linux-riscv/CAHk-=wji-hEV1U1x92TLsrPbpSPqDD7Cgv2YwzeL-mMbM7iaRA@mail.gmail.com/
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is already over! A huge thank you…

... to all the speakers who made this edition such a success,

to our godfather @paulmckrcu who did an incredible job putting together and keeping track of the agenda,

to Jean-Christophe for making the livestream possible and running the sound and video so flawlessly,

to @Aissen for the amazing live blog,

to Erwan for his spot-on mic throws,

to Frank for joining us on this third day and adding that little touch of craziness to the conference,

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Benchmarking the different machines in my office with the wonderful kcbench: http://www.kroah.com/log/blog/2025/10/01/the-only-benchmark-that-matters-is.../
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Thorsten Leemhuis (acct. 1/4)

Edited 25 days ago

""WE ARE NOT PREEMPTIVELY SUPPORTING BIG-ENDIAN ON RISC-V""

Linus send that to a few hours ago, after somebody asked if some of the big-endian work will make it into 6.18.

For the full thread, see: https://lore.kernel.org/lkml/CAHk-%3DwgYcOiFvsJzFb%2BHfB4n6Wj6zM5H5EghUMfpXSCzyQVSfA@mail.gmail.com/t/#mce138059dc56014643bbda330810183031ef5c06

There he calls the reasons documented on riscv.org as "craziness" and insane:

""In other words, it is suggesting that RISC-V add a big-endian mode due to

(a) internet protocols - where byte swapping is not an issue

(b) using "some RISC-V implementations don't do the existing Zbb extension" as an excuse

This is plain insanity. First off, even if byte swapping was a real cost for networking - it's not, the real costs tend to be all in memory subsystems - just implement the damn Zbb extension.""

That's from https://lore.kernel.org/lkml/CAHk-%3DwgYcOiFvsJzFb%2BHfB4n6Wj6zM5H5EghUMfpXSCzyQVSfA@mail.gmail.com/t/#m2fcaa49a910fec7475d313f01abfc861bd588ad5

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@mithro spoke about his new company wafer.space on the Amp Hour podcast. wafer.space will fab designs on Global Foundries 180nm (GF180MCU)

https://theamphour.com/703-building-wafer-space-with-tim-ansell

The photo/artwork is amazing

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