Toots for kernellogger@fosstodon.org account

Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-03 at 07:19

GNU #Binutils 2.44 is out:

https://lists.gnu.org/archive/html/info-gnu/2025-02/msg00001.html

Some highlights:

• Assembler:

• Support for new architecture extensions for AArch64, Risc-V and x86.

• Linker:

• This now supports mixed LTO and non-LTO object files in relocatable output.

• The ELF forms of the linker support a --image-base= option for compatibility with LLD.

[…] does not contain the sources for the gold linker […] now deprecated and will eventually be removed unless volunteers step forward […]

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-03 at 06:39

[#]Linux 6.14-rc1 is out:

https://lore.kernel.org/lkml/CAHk-=wicYNCkEgH06w0mpR+GJhJ_ywe0BLTTFXBAj1+y0dqe4Q@mail.gmail.com/

'"This is actually a tiny merge window, and that's ok. The holidays clearly meant that people did less development than during a normal cycle […]

Of course, "tiny" for us still means that there's half a million lines changed, and more than 10k commits […]

Let's hope that a small release also ends up meaning smooth sailing during the stabilization phase. That's obviously guaranteed, but fingers crossed...

   Linus"'

[#]LinuxKernel #Kernel

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-03 at 06:00 (original by Lucien XU)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-02 at 20:31 (original by linusw)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-02 at 17:26 (original by Mickaël Salaün)

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-02 at 14:22

I'm wondering how this patch merged for #Linux 6.14 was reviewed:

https://git.kernel.org/torvalds/c/be4e3509314af751f08677f428f93c306aaa2f8e

drm/amd/display: DML21 Reintegration For Various Fixes

30 files changed, 2819 insertions(+), 1731 deletions(-)

[in the end about 360 KByte]

[#]kernel #LinuxKernel

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-02 at 12:52 (original by Anisse)

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-02 at 07:54

Highlights from the main kbuild merge for #Linux 6.14:

https://git.kernel.org/torvalds/c/fd8c09ad0d87783b9b6a27900d66293be45b7bad

• Introduce gendwarfksyms tool, which computes CRCs for export symbols based on the DWARF information (https://lore.kernel.org/all/20250103204521.1885406-20-samitolvanen@google.com/)

• Support CONFIG_MODVERSIONS for #Rust (https://git.kernel.org/torvalds/c/ac61506bf2d1a6766d98b7d94b0c7b2134a0806a)

[For the two latter see also: https://lwn.net/Articles/986892/]

• Support multiple hook locations for maint scripts of Debian package

• Remove 'cpio' from the build tool requirement

[#]Rustlang #LinuxKernel #Kernel

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 18:21

'"The old GL renderer has been removed. […] The #X11 and Broadway backends have been deprecated, as a clear signal that we intend to remove them in the GTK 5.

It is worth reminding everybody that there is no need to act on deprecations until you are actively porting your app to the next major version of GTK, which is not on the horizon yet."

https://blog.gtk.org/2025/02/01/whats-new-in-gtk-winter-2025-edition/

[#]wayland #gtk

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 18:16 (original by ennaelle)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 18:15 (original by JeroenHeijmans)

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 12:07

Now at #FOSDEM: Miguel talking about #Rust for #Linux:

https://fosdem.org/2025/schedule/event/fosdem-2025-6507-rust-for-linux/

[#]Rustlang #Kernel #LinuxKernel

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 06:38

Initial bits of the new nova-drm #Linux #kernel graphics driver for modern #Nvidia GPUs (and thus #Nouveau successor) written in #Rust have been submitted for review:

https://lore.kernel.org/dri-devel/20250131220432.17717-1-dakr@kernel.org/

'"Add the initial nova-core driver stub.

nova-core is intended to serve as a common base for nova-drm (the corresponding DRM driver) and the vGPU manager VFIO driver […]

In order to avoid the chicken and egg problem […] nova-core kicks off as a driver stub and is subsequently developed upstream."'

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-02-01 at 06:32

"TLB flushing scalability optimizations, to update the mm_cpumask lazily and related changes." have been merged for #Linux 6.14:

https://git.kernel.org/torvalds/c/c545cd3276cd611a5d53ac5e18e98a37f013694c

"This feature has both a track record and a continued risk of performance regressions […]"

For more details see also:

• https://git.kernel.org/torvalds/c/209954cbc7d0ce1a190fc725d20ce303d74d2680
• https://git.kernel.org/torvalds/c/953753db887f9d70f70f61d6ecbe5cf209107672
• https://git.kernel.org/torvalds/c/6db2526c1d694c91c6e05e2f186c085e9460f202

Quote from the first:

"'$ hackbench --groups 20 --loops 10000

Before: ~4.5s +/- 0.1s

After: ~4.2s +/- 0.1s"'

[#]LinuxKernel #kernel

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 15:49 (original by josefbacik)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 09:33 (original by Greg K-H)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 09:33 (original by Pavel Pisa)

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 08:37 (original by Greg K-H)

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Written by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 08:37

I'm heading to #FOSDEM now, arriving in Brussels by train at 15:30.

If you want to meet up to talk about #Linux #kernel regression tracking or any other topic you know I work on or am interested in, please reach out; same if you just wanna chat. 😄

Please really do and do not hesitate, as you likely know how it its at FOSDEM: it's possible that we'll meet somewhere in the flood of people, but chances that it will happen are small!

[#]fosdem2025 #LinuxKernel #Fedora

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Shared by Thorsten Leemhuis (acct. 1/4) on 2025-01-31 at 02:52 (original by Thorsten Leemhuis (acct. 1/4))

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