Unable to install Kernels - dkms error

Hello,

after problems with the latest [Stable Update] 2025-08-30 (I will post there shortly and provide a link. EDIT: see here) I was unable to install a newer Kernel, which was one of the suggested solutions.

Updating gives this error:

[2025-09-01T20:11:09+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.12.44-2-MANJARO (x86_64)
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO' exited 10

The kernel shows up as “installed” in the kernel-manager, but does not show up in the boot menu.

This is the output of the above mentioned make.log:

DKMS (dkms-3.2.1) make.log for v4l2loopback/0.15.1 for kernel 6.12.44-2-MANJARO (x86_64)
Mon Sep  1 20:11:10 CEST 2025

Building module(s)
# command: make -j12 KERNELRELEASE=6.12.44-2-MANJARO KERNEL_DIR=/usr/lib/modules/6.12.44-2-MANJARO/build v4l2loopback
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory

++++++ To sign the  module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as 'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf /etc/dkms/framework.conf.d/*.conf

++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN env-var!
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'

Building v4l2-loopback driver...
make -C /usr/lib/modules/6.12.44-2-MANJARO/build M=/var/lib/dkms/v4l2loopback/0.15.1/build KCPPFLAGS="" modules
make[1]: Entering directory '/usr/lib/modules/6.12.44-2-MANJARO/build'
  CC [M]  /var/lib/dkms/v4l2loopback/0.15.1/build/v4l2loopback.o
gcc: fatal error: cannot execute 'cc1': posix_spawnp: No such file or directory
compilation terminated.
make[3]: *** [scripts/Makefile.build:229: /var/lib/dkms/v4l2loopback/0.15.1/build/v4l2loopback.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/usr/lib/modules/6.12.44-2-MANJARO/build/Makefile:1945: /var/lib/dkms/v4l2loopback/0.15.1/build] Error 2
make[1]: *** [Makefile:224: __sub-make] Error 2
make[1]: Leaving directory '/usr/lib/modules/6.12.44-2-MANJARO/build'
make: *** [Makefile:53: v4l2loopback.ko] Error 2

# exit code: 2
# elapsed time: 00:00:00
----------------------------------------------------------------

As suggested here by philm, I tried to downgrade mesa but without any change. The firmware packages were already up-to-date.

The output of pacman.log after the last update, when I tried to install several kernels without success:

[2025-08-31T09:15:26+0200] [PACMAN] Running 'pacman -Syu'
[2025-08-31T09:15:26+0200] [PACMAN] synchronizing package lists
[2025-08-31T09:15:26+0200] [PACMAN] starting full system upgrade
[2025-08-31T09:33:51+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux612 linux612-headers'
[2025-08-31T09:34:28+0200] [ALPM] transaction started
[2025-08-31T09:34:29+0200] [ALPM] installed linux612 (6.12.44-2)
[2025-08-31T09:34:30+0200] [ALPM] installed linux612-headers (6.12.44-2)
[2025-08-31T09:34:31+0200] [ALPM] transaction completed
[2025-08-31T09:34:31+0200] [ALPM] running '30-systemd-update.hook'...
[2025-08-31T09:34:31+0200] [ALPM] running '60-depmod.hook'...
[2025-08-31T09:34:32+0200] [ALPM] running '70-dkms-install.hook'...
[2025-08-31T09:34:32+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO
[2025-08-31T09:34:32+0200] [ALPM-SCRIPTLET] 
[2025-08-31T09:34:32+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.12.44-2-MANJARO (x86_64)
[2025-08-31T09:34:32+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-08-31T09:34:32+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO' exited 10
[2025-08-31T09:34:35+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'default'
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64.img
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:34:36+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:34:38+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:34:39+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64.img'
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'fallback'
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64-fallback.img -S autodetect
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:34:40+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:34:43+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-08-31T09:34:45+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:34:46+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-08-31T09:34:46+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-08-31T09:34:46+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci_renesas'
[2025-08-31T09:34:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:34:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:34:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:34:48+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:34:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:34:49+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:34:51+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:34:51+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64-fallback.img'
[2025-08-31T09:34:52+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:34:52+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-08-31T09:46:53+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -R linux612 linux612-headers'
[2025-08-31T09:46:53+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2025-08-31T09:46:53+0200] [ALPM] running '71-dkms-remove.hook'...
[2025-08-31T09:46:53+0200] [ALPM] transaction started
[2025-08-31T09:46:54+0200] [ALPM] removed linux612-headers (6.12.44-2)
[2025-08-31T09:46:55+0200] [ALPM] removed linux612 (6.12.44-2)
[2025-08-31T09:46:55+0200] [ALPM] transaction completed
[2025-08-31T09:46:55+0200] [ALPM] running '30-systemd-update.hook'...
[2025-08-31T09:46:55+0200] [ALPM] running '60-depmod.hook'...
[2025-08-31T09:47:13+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux612 linux612-headers'
[2025-08-31T09:47:13+0200] [ALPM] transaction started
[2025-08-31T09:47:14+0200] [ALPM] installed linux612 (6.12.44-2)
[2025-08-31T09:47:15+0200] [ALPM] installed linux612-headers (6.12.44-2)
[2025-08-31T09:47:15+0200] [ALPM] transaction completed
[2025-08-31T09:47:15+0200] [ALPM] running '30-systemd-update.hook'...
[2025-08-31T09:47:15+0200] [ALPM] running '60-depmod.hook'...
[2025-08-31T09:47:16+0200] [ALPM] running '70-dkms-install.hook'...
[2025-08-31T09:47:16+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO
[2025-08-31T09:47:17+0200] [ALPM-SCRIPTLET] 
[2025-08-31T09:47:17+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.12.44-2-MANJARO (x86_64)
[2025-08-31T09:47:17+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-08-31T09:47:17+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO' exited 10
[2025-08-31T09:47:20+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'default'
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64.img
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:47:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:47:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-08-31T09:47:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:47:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:47:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64.img'
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'fallback'
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64-fallback.img -S autodetect
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:47:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:47:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:47:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:47:27+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-08-31T09:47:29+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:47:30+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-08-31T09:47:30+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-08-31T09:47:31+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci_renesas'
[2025-08-31T09:47:32+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:47:33+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:47:33+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:47:33+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:47:33+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:47:34+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:47:35+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:47:35+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64-fallback.img'
[2025-08-31T09:47:36+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:47:36+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-08-31T09:48:10+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux616 linux616-headers'
[2025-08-31T09:48:41+0200] [ALPM] transaction started
[2025-08-31T09:48:42+0200] [ALPM] installed linux616 (6.16.4-2)
[2025-08-31T09:48:43+0200] [ALPM] installed linux616-headers (6.16.4-2)
[2025-08-31T09:48:43+0200] [ALPM] transaction completed
[2025-08-31T09:48:43+0200] [ALPM] running '30-systemd-update.hook'...
[2025-08-31T09:48:43+0200] [ALPM] running '60-depmod.hook'...
[2025-08-31T09:48:44+0200] [ALPM] running '70-dkms-install.hook'...
[2025-08-31T09:48:44+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.16.4-2-MANJARO
[2025-08-31T09:48:45+0200] [ALPM-SCRIPTLET] 
[2025-08-31T09:48:45+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.16.4-2-MANJARO (x86_64)
[2025-08-31T09:48:45+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-08-31T09:48:45+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.16.4-2-MANJARO' exited 10
[2025-08-31T09:48:48+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux616.preset: 'default'
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.16-x86_64 -g /boot/initramfs-6.16-x86_64.img
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.16.4-2-MANJARO'
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:48:48+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:48:49+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-08-31T09:48:49+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:48:49+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:48:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.16-x86_64.img'
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux616.preset: 'fallback'
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.16-x86_64 -g /boot/initramfs-6.16-x86_64-fallback.img -S autodetect
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.16.4-2-MANJARO'
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-08-31T09:48:52+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-08-31T09:48:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-08-31T09:48:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-08-31T09:48:56+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-08-31T09:48:58+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-08-31T09:48:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-08-31T09:48:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-08-31T09:48:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci_renesas'
[2025-08-31T09:49:01+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-08-31T09:49:02+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-08-31T09:49:02+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-08-31T09:49:02+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-08-31T09:49:02+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-08-31T09:49:02+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-08-31T09:49:04+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-08-31T09:49:04+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.16-x86_64-fallback.img'
[2025-08-31T09:49:05+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-08-31T09:49:05+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:00:00+0200] [PACMAN] Running 'pacman -Syu'
[2025-09-01T20:00:00+0200] [PACMAN] synchronizing package lists
[2025-09-01T20:00:06+0200] [PACMAN] starting full system upgrade
[2025-09-01T20:00:12+0200] [ALPM] running '00-timeshift-autosnap.hook'...
[2025-09-01T20:00:12+0200] [ALPM-SCRIPTLET] ==> skipping timeshift-autosnap due skipRsyncAutosnap in /etc/timeshift-autosnap.conf set to TRUE.
[2025-09-01T20:00:12+0200] [ALPM] transaction started
[2025-09-01T20:00:12+0200] [ALPM] upgraded libpamac (11.7.3-5 -> 11.7.3-7)
[2025-09-01T20:00:12+0200] [ALPM] upgraded libpamac-flatpak-plugin (11.7.3-5 -> 11.7.3-7)
[2025-09-01T20:00:12+0200] [ALPM] upgraded libpamac-snap-plugin (11.7.3-5 -> 11.7.3-7)
[2025-09-01T20:00:12+0200] [ALPM] transaction completed
[2025-09-01T20:00:12+0200] [ALPM] running '30-systemd-daemon-reload-system.hook'...
[2025-09-01T20:00:13+0200] [ALPM] running '30-systemd-restart-marked.hook'...
[2025-09-01T20:00:13+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:00:13+0200] [ALPM] running '30-update-mime-database.hook'...
[2025-09-01T20:00:13+0200] [ALPM] running 'dbus-reload.hook'...
[2025-09-01T20:00:15+0200] [PACMAN] Running 'pacman -Syu'
[2025-09-01T20:00:15+0200] [PACMAN] synchronizing package lists
[2025-09-01T20:00:15+0200] [PACMAN] starting full system upgrade
[2025-09-01T20:00:24+0200] [PACMAN] Running 'pacman -Syu'
[2025-09-01T20:00:24+0200] [PACMAN] synchronizing package lists
[2025-09-01T20:00:24+0200] [PACMAN] starting full system upgrade
[2025-09-01T20:00:36+0200] [PACMAN] Running 'pacman -Syu'
[2025-09-01T20:00:36+0200] [PACMAN] synchronizing package lists
[2025-09-01T20:00:36+0200] [PACMAN] starting full system upgrade
[2025-09-01T20:01:02+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -R linux616 linux616-headers'
[2025-09-01T20:01:02+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2025-09-01T20:01:03+0200] [ALPM] running '71-dkms-remove.hook'...
[2025-09-01T20:01:03+0200] [ALPM] transaction started
[2025-09-01T20:01:04+0200] [ALPM] removed linux616-headers (6.16.4-2)
[2025-09-01T20:01:04+0200] [ALPM] removed linux616 (6.16.4-2)
[2025-09-01T20:01:04+0200] [ALPM] transaction completed
[2025-09-01T20:01:04+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:01:05+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:01:18+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -R linux612 linux612-headers'
[2025-09-01T20:01:18+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2025-09-01T20:01:19+0200] [ALPM] running '71-dkms-remove.hook'...
[2025-09-01T20:01:19+0200] [ALPM] transaction started
[2025-09-01T20:01:20+0200] [ALPM] removed linux612-headers (6.12.44-2)
[2025-09-01T20:01:20+0200] [ALPM] removed linux612 (6.12.44-2)
[2025-09-01T20:01:20+0200] [ALPM] transaction completed
[2025-09-01T20:01:20+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:01:20+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:01:47+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux66 linux66-headers'
[2025-09-01T20:02:13+0200] [ALPM] transaction started
[2025-09-01T20:02:13+0200] [ALPM] installed linux66 (6.6.103-2)
[2025-09-01T20:02:15+0200] [ALPM] installed linux66-headers (6.6.103-2)
[2025-09-01T20:02:15+0200] [ALPM] transaction completed
[2025-09-01T20:02:15+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:02:15+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:02:16+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-01T20:02:16+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.6.103-2-MANJARO
[2025-09-01T20:02:17+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:02:17+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.6.103-2-MANJARO (x86_64)
[2025-09-01T20:02:17+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:02:17+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.6.103-2-MANJARO' exited 10
[2025-09-01T20:02:19+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux66.preset: 'default'
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.6-x86_64 -g /boot/initramfs-6.6-x86_64.img
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.6.103-2-MANJARO'
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:02:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:02:22+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:02:22+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.6-x86_64.img'
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux66.preset: 'fallback'
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.6-x86_64 -g /boot/initramfs-6.6-x86_64-fallback.img -S autodetect
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.6.103-2-MANJARO'
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:02:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:02:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:02:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:02:26+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-01T20:02:28+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:02:29+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-01T20:02:29+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-01T20:02:29+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:02:30+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:02:31+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:02:31+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:02:31+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:02:31+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:02:32+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:02:33+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:02:33+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.6-x86_64-fallback.img'
[2025-09-01T20:02:34+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:02:34+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:06:57+0200] [ALPM] running '00-timeshift-autosnap.hook'...
[2025-09-01T20:06:57+0200] [ALPM-SCRIPTLET] ==> skipping timeshift-autosnap due skipRsyncAutosnap in /etc/timeshift-autosnap.conf set to TRUE.
[2025-09-01T20:06:57+0200] [ALPM] transaction started
[2025-09-01T20:06:57+0200] [ALPM] reinstalled dkms (3.2.1-1)
[2025-09-01T20:06:57+0200] [ALPM] transaction completed
[2025-09-01T20:06:57+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:08:20+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux61-rt linux61-rt-headers'
[2025-09-01T20:08:44+0200] [ALPM] transaction started
[2025-09-01T20:08:44+0200] [ALPM] installed linux61-rt (6.1.146_rt53-3)
[2025-09-01T20:08:46+0200] [ALPM] installed linux61-rt-headers (6.1.146_rt53-3)
[2025-09-01T20:08:46+0200] [ALPM] transaction completed
[2025-09-01T20:08:46+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:08:46+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:08:47+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-01T20:08:47+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.1.146-3-rt53-MANJARO
[2025-09-01T20:08:47+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:08:47+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.1.146-3-rt53-MANJARO (x86_64)
[2025-09-01T20:08:47+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:08:47+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.1.146-3-rt53-MANJARO' exited 10
[2025-09-01T20:08:50+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-01T20:08:50+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux61-rt.preset: 'default'
[2025-09-01T20:08:50+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:08:50+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.1-rt-x86_64 -g /boot/initramfs-6.1-rt-x86_64.img
[2025-09-01T20:08:50+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.1.146-3-rt53-MANJARO'
[2025-09-01T20:08:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:08:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:08:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-01T20:08:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:08:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:08:53+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.1-rt-x86_64.img'
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux61-rt.preset: 'fallback'
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.1-rt-x86_64 -g /boot/initramfs-6.1-rt-x86_64-fallback.img -S autodetect
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.1.146-3-rt53-MANJARO'
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:08:54+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:08:56+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-01T20:08:58+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:08:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-01T20:08:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-01T20:08:59+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:09:00+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:09:01+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:09:01+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:09:01+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:09:01+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:09:02+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:09:03+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:09:03+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.1-rt-x86_64-fallback.img'
[2025-09-01T20:09:04+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:09:04+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:09:44+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -R linux61 linux61-headers linux61-rt-headers linux61-rt'
[2025-09-01T20:09:44+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2025-09-01T20:09:45+0200] [ALPM] running '71-dkms-remove.hook'...
[2025-09-01T20:09:46+0200] [ALPM-SCRIPTLET] ==> dkms remove --no-depmod v4l2loopback/0.15.1 -k 6.1.149-2-MANJARO
[2025-09-01T20:09:46+0200] [ALPM-SCRIPTLET] ==> depmod 6.1.149-2-MANJARO
[2025-09-01T20:09:49+0200] [ALPM] transaction started
[2025-09-01T20:09:49+0200] [ALPM] removed linux61-rt (6.1.146_rt53-3)
[2025-09-01T20:09:50+0200] [ALPM] removed linux61-rt-headers (6.1.146_rt53-3)
[2025-09-01T20:09:51+0200] [ALPM] removed linux61-headers (6.1.149-2)
[2025-09-01T20:09:51+0200] [ALPM] removed linux61 (6.1.149-2)
[2025-09-01T20:09:51+0200] [ALPM] transaction completed
[2025-09-01T20:09:51+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:09:51+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:09:59+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -R linux66 linux66-headers'
[2025-09-01T20:09:59+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2025-09-01T20:09:59+0200] [ALPM] running '71-dkms-remove.hook'...
[2025-09-01T20:09:59+0200] [ALPM] transaction started
[2025-09-01T20:10:00+0200] [ALPM] removed linux66-headers (6.6.103-2)
[2025-09-01T20:10:00+0200] [ALPM] removed linux66 (6.6.103-2)
[2025-09-01T20:10:01+0200] [ALPM] transaction completed
[2025-09-01T20:10:01+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:10:01+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:10:08+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux61 linux61-headers'
[2025-09-01T20:10:08+0200] [ALPM] transaction started
[2025-09-01T20:10:09+0200] [ALPM] installed linux61 (6.1.149-2)
[2025-09-01T20:10:10+0200] [ALPM] installed linux61-headers (6.1.149-2)
[2025-09-01T20:10:10+0200] [ALPM] transaction completed
[2025-09-01T20:10:11+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:10:11+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:10:11+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-01T20:10:11+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.1.149-2-MANJARO
[2025-09-01T20:10:12+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:10:12+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.1.149-2-MANJARO (x86_64)
[2025-09-01T20:10:12+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:10:12+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.1.149-2-MANJARO' exited 10
[2025-09-01T20:10:15+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux61.preset: 'default'
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.1-x86_64 -g /boot/initramfs-6.1-x86_64.img
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.1.149-2-MANJARO'
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:10:15+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-01T20:10:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:10:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:10:17+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.1-x86_64.img'
[2025-09-01T20:10:18+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux61.preset: 'fallback'
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.1-x86_64 -g /boot/initramfs-6.1-x86_64-fallback.img -S autodetect
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.1.149-2-MANJARO'
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:10:19+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:10:21+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-01T20:10:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:10:24+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-01T20:10:24+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-01T20:10:24+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:10:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:10:26+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:10:26+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:10:26+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:10:26+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:10:27+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:10:28+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:10:28+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.1-x86_64-fallback.img'
[2025-09-01T20:10:29+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:10:29+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:10:39+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux66 linux66-headers'
[2025-09-01T20:10:40+0200] [ALPM] transaction started
[2025-09-01T20:10:40+0200] [ALPM] installed linux66 (6.6.103-2)
[2025-09-01T20:10:42+0200] [ALPM] installed linux66-headers (6.6.103-2)
[2025-09-01T20:10:42+0200] [ALPM] transaction completed
[2025-09-01T20:10:42+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:10:42+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:10:43+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-01T20:10:43+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.6.103-2-MANJARO
[2025-09-01T20:10:44+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:10:44+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.6.103-2-MANJARO (x86_64)
[2025-09-01T20:10:44+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:10:44+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.6.103-2-MANJARO' exited 10
[2025-09-01T20:10:46+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux66.preset: 'default'
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.6-x86_64 -g /boot/initramfs-6.6-x86_64.img
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.6.103-2-MANJARO'
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:10:47+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:10:49+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:10:49+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.6-x86_64.img'
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux66.preset: 'fallback'
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.6-x86_64 -g /boot/initramfs-6.6-x86_64-fallback.img -S autodetect
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.6.103-2-MANJARO'
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:10:50+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:10:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:10:51+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:10:53+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-01T20:10:55+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:10:56+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-01T20:10:56+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-01T20:10:56+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci'
[2025-09-01T20:10:57+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:10:58+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:10:58+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:10:58+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:10:58+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:10:59+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:11:00+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:11:00+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.6-x86_64-fallback.img'
[2025-09-01T20:11:01+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:11:01+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:11:05+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux612 linux612-headers'
[2025-09-01T20:11:06+0200] [ALPM] transaction started
[2025-09-01T20:11:06+0200] [ALPM] installed linux612 (6.12.44-2)
[2025-09-01T20:11:08+0200] [ALPM] installed linux612-headers (6.12.44-2)
[2025-09-01T20:11:08+0200] [ALPM] transaction completed
[2025-09-01T20:11:08+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-01T20:11:08+0200] [ALPM] running '60-depmod.hook'...
[2025-09-01T20:11:09+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-01T20:11:09+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] 
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.12.44-2-MANJARO (x86_64)
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-01T20:11:10+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.12.44-2-MANJARO' exited 10
[2025-09-01T20:11:13+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'default'
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64.img
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:11:13+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:11:15+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:11:16+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64.img'
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux612.preset: 'fallback'
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.12-x86_64 -g /boot/initramfs-6.12-x86_64-fallback.img -S autodetect
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.12.44-2-MANJARO'
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-01T20:11:17+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-01T20:11:22+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-01T20:11:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-01T20:11:25+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-01T20:11:25+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-01T20:11:25+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci_renesas'
[2025-09-01T20:11:26+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-01T20:11:27+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-01T20:11:27+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-01T20:11:27+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-01T20:11:27+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-01T20:11:28+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-01T20:11:29+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-01T20:11:30+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.12-x86_64-fallback.img'
[2025-09-01T20:11:30+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-01T20:11:31+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful

Here is inxi:

System:
  Kernel: 5.15.190-2-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 15.2.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64
    root=UUID=0d60a204-b1a6-4420-90ce-3adfc24742d0 rw quiet apparmor=1
    security=apparmor udev.log_priority=3
  Desktop: Xfce v: 4.20.1 tk: Gtk v: 3.24.48 wm: xfwm4 v: 4.20.0
    with: xfce4-panel tools: light-locker vt: 7 dm: LightDM v: 1.32.0
    Distro: Manjaro base: Arch Linux
Machine:
  Type: Desktop Mobo: Gigabyte model: B550 GAMING X V2 v: x.x
    serial: <superuser required> uuid: <superuser required> UEFI: American
    Megatrends LLC. v: F13 date: 07/08/2021
Battery:
  Message: No system battery data found. Is one present?
Memory:
  System RAM: total: 16 GiB available: 15.51 GiB used: 2.22 GiB (14.3%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 128 GiB slots: 4 modules: 2 EC: None
    max-module-size: 32 GiB note: est.
  Device-1: Channel-A DIMM 0 type: no module installed
  Device-2: Channel-A DIMM 1 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 8 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: G.Skill
    part-no: F4-3200C16-8GVKB serial: N/A
  Device-3: Channel-B DIMM 0 type: no module installed
  Device-4: Channel-B DIMM 1 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 8 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: G.Skill
    part-no: F4-3200C16-8GVKB serial: N/A
PCI Slots:
  Permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: AMD Ryzen 5 5600G with Radeon Graphics bits: 64 type: MT MCP
    arch: Zen 3 gen: 3 level: v3 note: check built: 2021-22
    process: TSMC n7 (7nm) family: 0x19 (25) model-id: 0x50 (80) stepping: 0
    microcode: 0xA500012
  Topology: cpus: 1x dies: 1 cores: 6 threads: 12 tpc: 2 smt: enabled cache:
    L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB
    L3: 16 MiB desc: 1x16 MiB
  Speed (MHz): avg: 1741 min/max: 1400/4465 boost: enabled scaling:
    driver: acpi-cpufreq governor: schedutil cores: 1: 1741 2: 1741 3: 1741
    4: 1741 5: 1741 6: 1741 7: 1741 8: 1741 9: 1741 10: 1741 11: 1741 12: 1741
    bogomips: 93445
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
    bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy
    constant_tsc cpb cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total
    cqm_occup_llc cr8_legacy cx16 cx8 de decodeassists erms extapic
    extd_apicid f16c flushbyasid fma fpu fsgsbase fsrm fxsr fxsr_opt ht
    hw_pstate ibpb ibrs ibs invpcid irperf lahf_lm lbrv lm mba mca mce
    misalignsse mmx mmxext monitor movbe msr mtrr mwaitx nonstop_tsc nopl npt
    nrip_save nx ospke osvw overflow_recov pae pat pausefilter pclmulqdq
    pdpe1gb perfctr_core perfctr_llc perfctr_nb pfthreshold pge pku pni
    popcnt pse pse36 rapl rdpid rdpru rdrand rdseed rdt_a rdtscp rep_good sep
    sha_ni skinit smap smca smep ssbd sse sse2 sse4_1 sse4_2 sse4a ssse3
    stibp succor svm svm_lock syscall tce topoext tsc tsc_scale umip
    v_spec_ctrl v_vmsave_vmload vaes vgif vmcb_clean vme vmmcall vpclmulqdq
    wbnoinvd wdt xgetbv1 xsave xsavec xsaveerptr xsaveopt xsaves
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: indirect_target_selection status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow mitigation: safe RET
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl and seccomp
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Retpolines; IBPB: conditional; IBRS_FW;
    STIBP: always-on; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not
    affected
  Type: srbds status: Not affected
  Type: tsa mitigation: Clear CPU buffers
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 23 [Radeon RX 6650 XT /
    6700S 6800S] vendor: XFX driver: amdgpu v: kernel arch: RDNA-2
    code: Navi-2x process: TSMC n7 (7nm) built: 2020-22 pcie: gen: 4
    speed: 16 GT/s lanes: 16 ports: active: HDMI-A-1 empty: DP-1,DP-2,DP-3
    bus-ID: 03:00.0 chip-ID: 1002:73ef class-ID: 0300
  Display: x11 server: X.Org v: 21.1.18 compositor: xfwm4 v: 4.20.0 driver:
    X: loaded: amdgpu unloaded: modesetting,radeon alternate: fbdev,vesa
    dri: radeonsi gpu: amdgpu display-ID: :0.0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 509x286mm (20.04x11.26")
    s-diag: 584mm (22.99")
  Monitor-1: HDMI-A-1 mapped: HDMI-A-0 model: Acer KG272 S serial: <filter>
    built: 2021 res: mode: 1920x1080 hz: 144 scale: 100% (1) dpi: 82 gamma: 1.2
    chroma: red: x: 0.655 y: 0.314 green: x: 0.275 y: 0.643 blue: x: 0.153
    y: 0.055 white: x: 0.314 y: 0.329 size: 598x336mm (23.54x13.23")
    diag: 686mm (27") ratio: 16:9 modes: 1920x1080, 3840x2160, 1680x1050,
    1280x1024, 1440x900, 1280x960, 1280x800, 1152x864, 1280x720, 1024x768,
    832x624, 800x600, 720x576, 720x480, 640x480, 720x400
  EDID-Warnings: 1: parse_edid: unhandled CEA mode 78 2: parse_edid:
    unhandled CEA mode 94 3: parse_edid: unhandled CEA mode 95 4: parse_edid:
    unhandled CEA mode 96 5: parse_edid: unhandled CEA mode 97
  API: Vulkan v: 1.4.321 layers: 4 device: 0 type: discrete-gpu name: AMD
    Radeon RX 6650 XT (RADV NAVI23) driver: mesa radv v: 25.1.9-manjaro1.1
    device-ID: 1002:73ef surfaces: N/A
  API: OpenGL Message: Unable to show GL data. glxinfo is missing.
  Info: Tools: api: clinfo,vulkaninfo de: xfce4-display-settings
    x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 21/23 HDMI/DP Audio
    driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
    bus-ID: 03:00.1 chip-ID: 1002:ab28 class-ID: 0403
  Device-2: Advanced Micro Devices [AMD/ATI] Renoir/Cezanne HDMI/DP Audio
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    link-max: gen: 4 speed: 16 GT/s bus-ID: 09:00.1 chip-ID: 1002:1637
    class-ID: 0403
  Device-3: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    vendor: Gigabyte driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s
    lanes: 16 link-max: gen: 4 speed: 16 GT/s bus-ID: 09:00.6
    chip-ID: 1022:15e3 class-ID: 0403
  API: ALSA v: k5.15.190-2-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: JACK v: 1.9.22 status: off tools: N/A
  Server-3: PipeWire v: 1.4.7 status: off tools: pw-cli
  Server-4: PulseAudio v: 17.0-43-g3e2bb status: active
    with: pulseaudio-alsa type: plugin tools: pacat,pactl,pavucontrol
Network:
  Device-1: Intel Wi-Fi 5 Wireless-AC 9x6x [Thunder Peak] driver: iwlwifi
    v: kernel pcie: gen: 2 speed: 5 GT/s lanes: 1 bus-ID: 06:00.0
    chip-ID: 8086:2526 class-ID: 0280
  IF: wlp6s0 state: up mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: link
  Device-2: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: Gigabyte driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: e000 bus-ID: 07:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp7s0 state: down mac: <filter>
  Info: services: mld, NetworkManager, systemd-timesyncd, wpa_supplicant
  WAN IP: <filter>
Bluetooth:
  Device-1: Intel Wireless-AC 9260 Bluetooth Adapter driver: btusb v: 0.8
    type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-9:5
    chip-ID: 8087:0025 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 465.76 GiB used: 328.82 GiB (70.6%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Kingston model: SNVS500G
    size: 465.76 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: S8542105 temp: 31.9 C
    scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 66.41 GiB size: 64.81 GiB (97.60%) used: 47.22 GiB (72.9%)
    fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2 label: N/A
    uuid: 0d60a204-b1a6-4420-90ce-3adfc24742d0
  ID-2: /boot/efi raw-size: 500 MiB size: 499 MiB (99.80%)
    used: 320 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
    uuid: 5BA2-97E0
  ID-3: /home raw-size: 390.85 GiB size: 383.65 GiB (98.16%)
    used: 281.59 GiB (73.4%) fs: ext4 dev: /dev/nvme0n1p4 maj-min: 259:4
    label: N/A uuid: da26921e-231e-4a4e-9757-215d606bc531
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 8 GiB used: 0 KiB (0.0%) priority: -2
    dev: /dev/nvme0n1p3 maj-min: 259:3 label: N/A
    uuid: 3a4e00d4-0469-4ec3-b155-1e19e83c347c
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 10 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 1-3:2 info: Integrated Express RGB LED Controller type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 048d:5702 class-ID: 0300
  Device-2: 1-5:3 info: ROCCAT Kone Pro type: mouse,HID
    driver: hid-generic,usbhid interfaces: 4 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 500mA chip-ID: 1e7d:2c88 class-ID: 0300
  Device-3: 1-6:4 info: SINO WEALTH USB KEYBOARD type: keyboard,HID
    driver: hid-generic,usbhid interfaces: 2 rev: 1.1
    speed: 1.5 Mb/s (183 KiB/s) lanes: 1 mode: 1.0 power: 100mA
    chip-ID: 258a:0001 class-ID: 0300
  Device-4: 1-9:5 info: Intel Wireless-AC 9260 Bluetooth Adapter
    type: bluetooth driver: btusb interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
    chip-ID: 8087:0025 class-ID: e001
  Hub-2: 2-0:1 info: super-speed hub ports: 4 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-3: 3-0:1 info: hi-speed hub with single TT ports: 4 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-4: 4-0:1 info: super-speed hub ports: 2 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-5: 5-0:1 info: hi-speed hub with single TT ports: 4 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-6: 6-0:1 info: super-speed hub ports: 2 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 42.4 C mobo: 26.0 C gpu: amdgpu temp: 41.0 C
    mem: 38.0 C
  Fan Speeds (rpm): N/A gpu: amdgpu fan: 0
Repos:
  Packages: 1635 pm: pacman pkgs: 1621 libs: 476 tools: pamac,yay pm: flatpak
    pkgs: 14
  Active pacman repo servers in: /etc/pacman.conf
    1: https://download.manjaro.org/pkgs/mesa
    2: https://download.manjaro.org/pkgs/linux-firmware
  Active pacman repo servers in: /etc/pacman.d/mirrorlist
    1: https://mirror.alpix.eu/manjaro/stable/$repo/$arch
Processes:
  CPU top: 5 of 337
  1: cpu: 27.8% command: firefox pid: 2168 mem: 536.1 MiB (3.3%)
  2: cpu: 15.5% command: firefox pid: 2445 mem: 388.7 MiB (2.4%)
  3: cpu: 7.3% command: firefox pid: 2365 mem: 352.5 MiB (2.2%)
  4: cpu: 6.9% command: /newerversion started-by: dropbox pid: 2087
    mem: 246.3 MiB (1.5%)
  5: cpu: 4.9% command: Xorg pid: 1243 mem: 134.7 MiB (0.8%)
  Memory top: 5 of 337
  1: mem: 536.1 MiB (3.3%) command: firefox pid: 2168 cpu: 27.8%
  2: mem: 388.7 MiB (2.4%) command: firefox pid: 2445 cpu: 15.5%
  3: mem: 352.5 MiB (2.2%) command: firefox pid: 2365 cpu: 7.3%
  4: mem: 246.3 MiB (1.5%) command: /newerversion started-by: dropbox
    pid: 2087 cpu: 6.9%
  5: mem: 140.5 MiB (0.8%) command: firefox pid: 2290 cpu: 1.1%
Info:
  Processes: 337 Power: uptime: 1m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 6.19 GiB services: upowerd,xfce4-power-manager
    Init: systemd v: 257 default: graphical tool: systemctl
  Compilers: clang: 20.1.8 gcc: 15.2.1 Shell: Bash v: 5.3.3
    running-in: xfce4-terminal inxi: 3.3.39

What is the content of: /var/lib/dkms/v4l2loopback/0.15.1/build/make.log

Thank you for your reply! As already posted above:

DKMS (dkms-3.2.1) make.log for v4l2loopback/0.15.1 for kernel 6.12.44-2-MANJARO (x86_64)
Mon Sep  1 20:11:10 CEST 2025

Building module(s)
# command: make -j12 KERNELRELEASE=6.12.44-2-MANJARO KERNEL_DIR=/usr/lib/modules/6.12.44-2-MANJARO/build v4l2loopback
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory

++++++ To sign the  module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as 'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf /etc/dkms/framework.conf.d/*.conf

++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN env-var!
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'

Building v4l2-loopback driver...
make -C /usr/lib/modules/6.12.44-2-MANJARO/build M=/var/lib/dkms/v4l2loopback/0.15.1/build KCPPFLAGS="" modules
make[1]: Entering directory '/usr/lib/modules/6.12.44-2-MANJARO/build'
  CC [M]  /var/lib/dkms/v4l2loopback/0.15.1/build/v4l2loopback.o
gcc: fatal error: cannot execute 'cc1': posix_spawnp: No such file or directory
compilation terminated.
make[3]: *** [scripts/Makefile.build:229: /var/lib/dkms/v4l2loopback/0.15.1/build/v4l2loopback.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/usr/lib/modules/6.12.44-2-MANJARO/build/Makefile:1945: /var/lib/dkms/v4l2loopback/0.15.1/build] Error 2
make[1]: *** [Makefile:224: __sub-make] Error 2
make[1]: Leaving directory '/usr/lib/modules/6.12.44-2-MANJARO/build'
make: *** [Makefile:53: v4l2loopback.ko] Error 2

# exit code: 2
# elapsed time: 00:00:00
----------------------------------------------------------------

gcc: fatal error: cannot execute 'cc1': posix_spawnp: No such file or directory

Did you install base-devel?

Yes, it is installed and up-to-date:

[ray@ray-b550 ~]$ sudo pacman -Syu base-devel
[sudo] Passwort für ray: 
:: Paketdatenbanken werden synchronisiert …
 core ist aktuell
 mesa-251 ist aktuell
 linux-firmware ist aktuell
 extra                   8,5 MiB  5,09 MiB/s 00:02 [######################] 100%
 multilib ist aktuell
Warnung: base-devel-1-3 ist aktuell -- Reinstalliere
:: Vollständige Systemaktualisierung wird gestartet …
Abhängigkeiten werden aufgelöst …
Nach in Konflikt stehenden Paketen wird gesucht …

Pakete (1) base-devel-1-3


:: Installation fortsetzen? [J/n] j

I posted the original problem in the update-thread here.

on my end I can compile it just fine.

On another machine with almost identical hardware, I can do so, too. It’s only this machine that now fails to install kernel and hangs on boot with linux61.

There is something very wrong with your gcc. Post output of which gcc and gcc --version.

$ which gcc
/usr/bin/gcc

$ gcc --version
gcc (GCC) 15.2.1 20250813
Copyright (C) 2025 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Here is the output of which gcc and gcc --version:

[ray@ray-b550 ~]$ which gcc
/usr/bin/gcc

[ray@ray-b550 ~]$ gcc --version
gcc (GCC) 15.2.1 20250813
Copyright (C) 2025 Free Software Foundation, Inc.
Dies ist freie Software; die Kopierbedingungen stehen in den Quellen. Es
gibt KEINE Garantie; auch nicht für MARKTGÄNGIGKEIT oder FÜR SPEZIELLE ZWECKE.

[ray@ray-b550 ~]$ 

Actually, after the latest updates that philm pushed to stable, I tried to run update-grub manually and was very surprised that it wasn’t installed!

After installing it, the kernels now show up in the boot menu and start normally. However, the error is still there unchanged.

Here is pacman.log:

[2025-09-02T14:11:42+0200] [ALPM] installed update-grub (2:2.12.r350.g0e367796-1)
[2025-09-02T14:11:42+0200] [ALPM-SCRIPTLET] :: Install your bootloader and generate configuration with:
[2025-09-02T14:11:42+0200] [ALPM-SCRIPTLET]      # UEFI: https://wiki.archlinux.org/title/GRUB#Installation
[2025-09-02T14:11:42+0200] [ALPM-SCRIPTLET]      # BIOS: https://wiki.archlinux.org/title/GRUB#Installation_2
[2025-09-02T14:11:42+0200] [ALPM] transaction completed
[2025-09-02T14:11:42+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-02T14:14:12+0200] [PACMAN] Running '/usr/bin/pacman --noconfirm --noprogressbar -S linux616 linux616-headers'
[2025-09-02T14:14:13+0200] [ALPM] transaction started
[2025-09-02T14:14:13+0200] [ALPM] installed linux616 (6.16.4-2)
[2025-09-02T14:14:15+0200] [ALPM] installed linux616-headers (6.16.4-2)
[2025-09-02T14:14:15+0200] [ALPM] transaction completed
[2025-09-02T14:14:15+0200] [ALPM] running '30-systemd-update.hook'...
[2025-09-02T14:14:15+0200] [ALPM] running '60-depmod.hook'...
[2025-09-02T14:14:16+0200] [ALPM] running '70-dkms-install.hook'...
[2025-09-02T14:14:16+0200] [ALPM-SCRIPTLET] ==> dkms install --no-depmod v4l2loopback/0.15.1 -k 6.16.4-2-MANJARO
[2025-09-02T14:14:17+0200] [ALPM-SCRIPTLET] 
[2025-09-02T14:14:17+0200] [ALPM-SCRIPTLET] Error! Bad return status for module build on kernel: 6.16.4-2-MANJARO (x86_64)
[2025-09-02T14:14:17+0200] [ALPM-SCRIPTLET] Consult /var/lib/dkms/v4l2loopback/0.15.1/build/make.log for more information.
[2025-09-02T14:14:17+0200] [ALPM-SCRIPTLET] ==> WARNING: `dkms install --no-depmod v4l2loopback/0.15.1 -k 6.16.4-2-MANJARO' exited 10
[2025-09-02T14:14:20+0200] [ALPM] running '90-mkinitcpio-install.hook'...
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux616.preset: 'default'
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.16-x86_64 -g /boot/initramfs-6.16-x86_64.img
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.16.4-2-MANJARO'
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-02T14:14:20+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-02T14:14:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2025-09-02T14:14:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-02T14:14:21+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-02T14:14:23+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.16-x86_64.img'
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux616.preset: 'fallback'
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Using default configuration file: '/etc/mkinitcpio.conf'
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-6.16-x86_64 -g /boot/initramfs-6.16-x86_64-fallback.img -S autodetect
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET] ==> Starting build: '6.16.4-2-MANJARO'
[2025-09-02T14:14:24+0200] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2025-09-02T14:14:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2025-09-02T14:14:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2025-09-02T14:14:25+0200] [ALPM-SCRIPTLET]   -> Running build hook: [kms]
[2025-09-02T14:14:29+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'ast'
[2025-09-02T14:14:31+0200] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2025-09-02T14:14:32+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'wd719x'
[2025-09-02T14:14:32+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'aic94xx'
[2025-09-02T14:14:32+0200] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: 'xhci_pci_renesas'
[2025-09-02T14:14:34+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2025-09-02T14:14:35+0200] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2025-09-02T14:14:35+0200] [ALPM-SCRIPTLET]   -> Running build hook: [consolefont]
[2025-09-02T14:14:35+0200] [ALPM-SCRIPTLET] ==> WARNING: consolefont: no font found in configuration
[2025-09-02T14:14:35+0200] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2025-09-02T14:14:35+0200] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2025-09-02T14:14:37+0200] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2025-09-02T14:14:37+0200] [ALPM-SCRIPTLET] ==> Creating zstd-compressed initcpio image: '/boot/initramfs-6.16-x86_64-fallback.img'
[2025-09-02T14:14:38+0200] [ALPM-SCRIPTLET]   -> Early uncompressed CPIO image generation successful
[2025-09-02T14:14:38+0200] [ALPM-SCRIPTLET] ==> Initcpio image generation successful
[2025-09-02T14:14:38+0200] [ALPM] running '99-update-grub.hook'...
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Generating grub configuration file ...
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found theme: /usr/share/grub/themes/manjaro/theme.txt
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found linux image: /boot/vmlinuz-6.16-x86_64
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd image: /boot/amd-ucode.img /boot/initramfs-6.16-x86_64.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd fallback image: /boot/initramfs-6.16-x86_64-fallback.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found linux image: /boot/vmlinuz-6.12-x86_64
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd image: /boot/amd-ucode.img /boot/initramfs-6.12-x86_64.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd fallback image: /boot/initramfs-6.12-x86_64-fallback.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found linux image: /boot/vmlinuz-6.6-x86_64
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd image: /boot/amd-ucode.img /boot/initramfs-6.6-x86_64.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd fallback image: /boot/initramfs-6.6-x86_64-fallback.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found linux image: /boot/vmlinuz-6.1-x86_64
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd image: /boot/amd-ucode.img /boot/initramfs-6.1-x86_64.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd fallback image: /boot/initramfs-6.1-x86_64-fallback.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found linux image: /boot/vmlinuz-5.15-x86_64
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd image: /boot/amd-ucode.img /boot/initramfs-5.15-x86_64.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Found initrd fallback image: /boot/initramfs-5.15-x86_64-fallback.img
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Warning: os-prober will be executed to detect other bootable partitions.
[2025-09-02T14:14:39+0200] [ALPM-SCRIPTLET] Its output will be used to detect bootable binaries on them and create new boot entries.
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] Adding boot menu entry for UEFI Firmware Settings ...
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] Root filesystem isn't btrfs
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] If you think an error has occurred, please file a bug report at "https://github.com/Antynea/grub-btrfs"
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] Found memtest86+ image: /boot/memtest86+/memtest.bin
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] /usr/bin/grub-probe: warning: unknown device type nvme0n1.
[2025-09-02T14:14:40+0200] [ALPM-SCRIPTLET] done

Content of: /var/lib/dkms/v4l2loopback/0.15.1/build/make.log

DKMS (dkms-3.2.1) make.log for v4l2loopback/0.15.1 for kernel 6.16.4-2-MANJARO (x86_64)
Tue Sep  2 14:14:17 CEST 2025

Building module(s)
# command: make -j12 KERNELRELEASE=6.16.4-2-MANJARO KERNEL_DIR=/usr/lib/modules/6.16.4-2-MANJARO/build v4l2loopback
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory

++++++ To sign the  module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as 'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf /etc/dkms/framework.conf.d/*.conf

++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN env-var!
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'

Building v4l2-loopback driver...
make -C /usr/lib/modules/6.16.4-2-MANJARO/build M=/var/lib/dkms/v4l2loopback/0.15.1/build KCPPFLAGS="" modules
make[1]: Entering directory '/usr/lib/modules/6.16.4-2-MANJARO/build'
make[2]: Entering directory '/var/lib/dkms/v4l2loopback/0.15.1/build'
  CC [M]  v4l2loopback.o
gcc: fatal error: cannot execute 'cc1': posix_spawnp: No such file or directory
compilation terminated.
make[4]: *** [/usr/lib/modules/6.16.4-2-MANJARO/build/scripts/Makefile.build:287: v4l2loopback.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/usr/lib/modules/6.16.4-2-MANJARO/build/Makefile:2003: .] Error 2
make[2]: *** [/usr/lib/modules/6.16.4-2-MANJARO/build/Makefile:248: __sub-make] Error 2
make[2]: Leaving directory '/var/lib/dkms/v4l2loopback/0.15.1/build'
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Leaving directory '/usr/lib/modules/6.16.4-2-MANJARO/build'
make: *** [Makefile:53: v4l2loopback.ko] Error 2

# exit code: 2
# elapsed time: 00:00:00
----------------------------------------------------------------

Well that looks correct but there is definitely something very wrong somewhere if gcc can’t find cc1.

I’d try uninstalling the v4l2loopback-dkms package. The kernels should then build succesfully and when you have a working system you can try reinstalling it.