Arch Linux User Repository

Important update
I have updated and renamed some settings envvars. Please check your scripts, aliases, brain memory or whatever you use to store your build command and update them accordingly. Please read the description in the PKGBUILD file instead of the short summary in the pinned comment on the AUR or in the README in the repository as some important details important to this update are only found inside the PKGBUILD.

Information comment
This comment provides useful information about this package. Make sure to read it through, you won't regret it.

Repository URL
This package is hosted at sos!git. If you want to contribute to the package, you can do it here: https://git.staropensource.de/JeremyStarTM/aur-linux-clear

Issue handling
Please only submit issues in the package's repository if they aren't bug reports about the package or help requests. Please keep them to the AUR only. This prevents unnecessary signups.

Updates
I usually publish updates 0-3 days after a kernel release, depending on how busy I am.
If I however get wind of security-relevant updates or any vulnerabilities I will try to update the kernel as soon as possible and write a comment about the vulnerability/update. So make sure to subscribe to this package's comment mailing list.

PKGBUILD environment variable customization
The PKGBUILD file supports customization via environment variables. Here's a list of all of them:
- _makemenuconfig: Invokes make menuconfig (ncurses-based default configuration menu) before compilation starts
- _makenconfig: Invokes make nconfig (ncurses-based nicer configuration menu) before compilation starts
- _makexconfig: Invokes make xconfig (X11-based GUI configuration menu) before compilation starts
- _reuse_current: Will use the configuration of the running kernel, if the running kernel is compiled with IKCONFIG_PROC
- _reuse_file: Will use the configuration file named kconfig contained in the PKGBUILD file's directory
- _update_kconfig_on_reuse: Specifies whether the kernel configuration shall be updated when using any of the 'reuse*' flags
- _copyfinalconfig: Copies the final kernel configuration into the repository root as kconfig-new before compilation starts
- _localmodcfg: Only compiles modules found in modprobed-db's database (which decreases compilation time and kernel size)
- _use_llvm_lto: Compiles the kernel with LLVM instead of GCC. Should work, if not open an issue
- _subarch: Specifies the subarchitecture to compile for (see the PKGBUILD file for a list of all subarches). Default is 41 (Generic x86-64), which is compatible with all amd64 processors. Must be a number
- _use_llvm_lto: Enables compilation with LLVM. Untested but should work. If not write a comment on the AUR.
- _subarch_microarch: Specifies the microarchitecture to compile for. Only applies to and is required by the GENERIC_CPU subarch. Must be a number between 1 and 4 (click for more information)
- _debug_kernel: Force enables kernel debugging options when set to y, force disables debug options when set to n or relies on the kconfig when unset
- _debug_script: Enables debugging for the PKGBUILD file

All of these variables just need to be set for them to apply, except for _subarch, _subarch_microarch and _debug_kernel. For more information please check their documentation inside the PKGBUILD file

GPG errors
If makepkg complains about invalid PGP keys, try running this command first: gpg --locate-keys torvalds@kernel.org gregkh@kernel.org sashal@kernel.org benh@debian.org. This command only needs to be executed once.

Build tool
If you want a dead simple way to compile this package, you can try out my build tool. It includes a few no nonsense changes to the kernel configuration and allows you to configure the PKGBUILD file in a simple manner and decrease build time. And if you don't want that, using makepkg as-is works fine too.

Addition to my previous post about nVidia: [ 150.341496] nvidia: module license 'NVIDIA' taints kernel. [ 150.341498] Disabling lock debugging due to kernel taint [ 150.355115] calling nvidia_frontend_init_module+0x0/0x93 [nvidia] @ 1580 [ 150.355150] nvidia-nvlink: Nvlink Core is being initialized, major device number 236 [ 150.355540] NVRM: The NVIDIA probe routine was not called for 1 device(s). [ 150.355541] NVRM: This can occur when a driver such as: NVRM: nouveau, rivafb, nvidiafb or rivatv NVRM: was loaded and obtained ownership of the NVIDIA device(s). [ 150.355542] NVRM: Try unloading the conflicting kernel module (and/or NVRM: reconfigure your kernel without the conflicting NVRM: driver(s)), then try loading the NVIDIA kernel module NVRM: again. [ 150.355543] NVRM: No NVIDIA devices probed. Using NVIDIA Corporation GM108M [GeForce 840M] (rev a2) and optimus-manager-qt

@berturion Don't expect any massive performance boost just from this kernel. Most of the clear linux optimizations are in userland. However, your desktop should be more responsive as it has CONFIG_HZ_1000=y & CONFIG_HZ=1000.

@everyone Version 5.2.2 should be out in a day or two.

Did some people find evidences of a performance boost by using this kernel instead of using arch linux kernel ? Can you share the commands or tools you used that shows significant performance changes please (good or bad) ?

I tried:

sysbench --test=cpu --num-threads=4 --cpu-max-prime=9999 run

and

time $(i=0; while (( i < 9999999 )); do (( i ++ )); done)

Results between the kernels are similar.

@zheiling You'll have to provide more info about your setup and logs if someone is to help you. I don't have nvidia card so there's also that.

With this kernel optimus-manager switch from Intel to NVIDIA does not work. It just switches to Intel again and again, when I choose NVIDIA.

Thank you @metak, I should have seen this, sorry. It works now. I needed to run this command:

pacman-key --lsign-key 50AAD02AEB1F61C9

@berturion Have you imported the key as it says in the wiki? Key ID: 50AAD02AEB1F61C9

Hello, I wanted to include your repo in my pacman configuration so I added this in /etc/pacman.conf :

[home_metakcahura_kernel_Arch_Extra_standard]
Include = /etc/pacman.d/metak-kernel-mirrorlist

And this in /etc/pacman.d/metak-kernel-mirrorlist :

Server = http://download.opensuse.org/repositories/home:/metakcahura:/kernel/Arch_Extra_standard/x86_64

When I update pacman repos, I have this :

erreur : home_metakcahura_kernel_Arch_Extra_standard : la signature de « home:metakcahura OBS Project <home:metakcahura@build.opensuse.org> » est de confiance inconnue

Is that can work? How can I trust this gpg?

@fidasx It takes some time to rebase all the patches and test everything with major versions. I don't know when it's coming, but my guess is in couple of days since the upstream is already at 5.2.1.

hey @metak ty amazing pkg any idea when 5.2+ its coming