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

What should be done if I wish to adjust configuration before building the package? Would replacing make olddefconfig with make menuconfig in PKGBUILD be fine, there's no #info anymore? What's next, makepkg? Or maybe makepkg -> fail, makepkg -e?

I have: rm: cannot remove '/home/mkl/Downloads/linux-xanmod-419/pkg/linux-xanmod-4.19.6/usr/lib/modules//source': No such file or directory after DEPMOD 4.19.6-xanmod4-1-xanmod-4.19.6MANJARO can you tell why is this?

ld: arch/x86/kernel/cpu/bugs.o:(__jump_table+0x28): undefined reference to `sched_smt_present'
ld: arch/x86/kernel/cpu/bugs.o:(__jump_table+0x40): undefined reference to `sched_smt_present'
ld: arch/x86/kernel/cpu/bugs.o:(__jump_table+0x58): undefined reference to `sched_smt_present'
ld: arch/x86/kernel/cpu/bugs.o:(__jump_table+0x70): undefined reference to `sched_smt_present'

those are the errors in case you're curious. And, can you please leave in an option so that we can have a config file we can adjust? thanks

@kyle_dolichev I'll probably drop arch configuration. I think it doesn't have any sense.

Is anybody else getting an error about sched_smt or smt_sched when trying to build with the archlinux configuration file? Or is it just me? Perhaps I am enabling something that's causing it, I still have to test whether or not it'll do the error without my edits so maybe its my doing but I don't know.

@adrioanocr if you know kernel config you want to change, you can replace config changing PKGBUILD variable _configuration to 2, then instead of use Archlinux config put your own file. It's easy (replace config source and updpkgsums).

Another choice is to add "make menuconfig" at the end of prepare() function and do all the changes manually.

Out of curiosity (I'm new to alternative kernels) is there a way to build this without certain kernel modules? For example if I wanted to compile without wifi support, is that doable? And how...?

@figue

That worked thank you!

Cheers

@adrioanocr

'No space left on device' => if you are compiling the package in /tmp or in other filesystem, probably, you haven't more space left. It's common if you use AUR helpers like yaourt... They use /tmp to compile as default, and /tmp is limited in space.

Please, compile manually in other place like your home:

git clone https://aur.archlinux.org/linux-xanmod.git
cd linux-xanmod
makepkg -sic