Arch Linux User Repository

Adding

scripts/config --disable CONFIG_IMA_ARCH_POLICY

to myconfig does solve the "Failed to insert module 'nvidia': Key was rejected by service" problem.

Anyone who configured secure boot using sbctl and want to load dkms modules can try this solution.

This package have several variables to enable/disable features.

##
## The following variables can be customized at build time. Use env or export to change at your wish
##
##   Example: env _microarchitecture=98 use_numa=n use_tracers=n makepkg -sc
##
## Look inside 'choose-gcc-optimization.sh' to choose your microarchitecture
## Valid numbers between: 0 to 99
## Default is: 0 => generic
## Good option if your package is for one machine: 98 (Intel native) or 99 (AMD native)
if [ -z ${_microarchitecture+x} ]; then
  _microarchitecture=0
fi

## Disable NUMA since most users do not have multiple processors. Breaks CUDA/NvEnc.
## Archlinux and Xanmod enable it by default.
## Set variable "use_numa" to: n to disable (possibly increase performance)
##                             y to enable  (stock default)
if [ -z ${use_numa+x} ]; then
  use_numa=y
fi

## Since upstream disabled CONFIG_STACK_TRACER (limits debugging and analyzing of the kernel)
## you can enable them setting this option. Caution, because they have an impact in performance.
## Stock Archlinux has this enabled. 
## Set variable "use_tracers" to: n to disable (possibly increase performance, XanMod default)
##                                y to enable  (Archlinux default)
if [ -z ${use_tracers+x} ]; then
  use_tracers=n
fi

# Unique compiler supported upstream is GCC
## Choose between GCC and CLANG config (default is GCC)
## Use the environment variable "_compiler=clang"
if [ "${_compiler}" = "clang" ]; then
  _compiler_flags="CC=clang HOSTCC=clang LLVM=1 LLVM_IAS=1"
fi

# Choose between the 4 main configs for stable branch. Default x86-64-v1 which use CONFIG_GENERIC_CPU2:
# Possible values: config_x86-64-v1 (default) / config_x86-64-v2 / config_x86-64-v3 / config_x86-64-v4
# This will be overwritten by selecting any option in microarchitecture script
# Source files: https://github.com/xanmod/linux/tree/5.17/CONFIGS/xanmod/gcc
if [ -z ${_config+x} ]; then
  _config=config_x86-64-v1
fi

# Compress modules with ZSTD (to save disk space)
if [ -z ${_compress_modules+x} ]; then
  _compress_modules=n
fi

# Compile ONLY used modules to VASTLY reduce the number of modules built
# and the build time.
#
# To keep track of which modules are needed for your specific system/hardware,
# give module_db script a try: https://aur.archlinux.org/packages/modprobed-db
# This PKGBUILD read the database kept if it exists
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
if [ -z ${_localmodcfg} ]; then
  _localmodcfg=n
fi

# Tweak kernel options prior to a build via nconfig
if [ -z ${_makenconfig} ]; then
  _makenconfig=n
fi

Personally I'm running now xanmod kernel compiled with this:

env _microarchitecture=98 use_tracers=n use_numa=n _localmodcfg=y _compress_modules=y makepkg -sic

Also, you can now create the file myconfig in your local repo to build this package with a custom config or use ${XDG_CONFIG_HOME}/linux-xanmod/myconfig. This file can be a full kernel config or be a script with several entries to add/remove options (you have several examples in PKGBUILD by using scripts/config):

Code involved:

  for _myconfig in "${SRCDEST}/myconfig" "${HOME}/.config/linux-xanmod/myconfig" "${XDG_CONFIG_HOME}/linux-xanmod/myconfig" ; do
    if [ -f "${_myconfig}" ] && [ "$(wc -l <"${_myconfig}")" -gt "0" ]; then
      if grep -q 'scripts/config' "${_myconfig}"; then
        # myconfig is a partial file. Executing as a script
        msg2 "Applying myconfig..."
        bash -x "${_myconfig}"
      else
        # myconfig is a full config file. Replacing default .config
        msg2 "Using user CUSTOM config..."
        cp -f "${_myconfig}" .config
      fi
      echo
      break
    fi
  done

@k0r0ng CONFIG_MNATIVE_* are included in clang config. So I think it works.

Can clang use "Native optimizations" or I have to choose the correct microarchitecture?

@danspaes I'm not sure where this repo comes from. Probably the packager uses his own pgp signature. Perhaps, if you import it first, then pacstrap will work.

In any case, pacstrap support -U, so you can download all packages you need and install them locally. I think signature is ignored in that case.

Or you can make an arch-chroot to your new installation and make the usual "git clone" and build it inside.

Hi all,

I am not able to install this package (nor the linux-xanmod-tt version) using the pacstrap as it gives it is missing the "sig" for them from the server https://repo.archlinuxrepo.dev/x86_64/kernel/.

I am using the config described at https://wiki.archlinux.org/title/unofficial_user_repositories#kernel

What should I do to be able to install those packages from the pacstrap, should I git clone them instead?

Thanks! Thanks!

@khionu, just add MAKEFLAGS="-j8" to your makepkg.conf

Any chance we could get some parallelism added? make -j8 should show a huge improvement on a good many computers.

Is use_numa=n preferred even on the MZEN3 (e.g. Ryzen 5900X) CPU?

@guiodic new branch 5.15 is only accepted as EDGE, not STABLE, you can see in this table: https://xanmod.org/#install_via_apturl

Please, use linux-xanmod-edge package instead (I'm just testing it right now, it will be updated soon).

Would it be possible to get prebuilt releases such as on Fedora, which uses copr? https://copr.fedorainfracloud.org/coprs/rmnscnce/kernel-xanmod/

I'm asking because the kernel gets updated quite frequently and build times are quite long (with all threads) on an i5-4690k and i7-7700HQ.

FATAL: modpost: drivers/net/wwan/rpmsg_wwan_ctrl: sizeof(struct rpmsg_device_id)=32 is not a modulo of the size of section __mod_rpmsg__<identifier>_device_table=120.

Edit: rm -r $HOME/.ccache fixed the issue.