Bug#1100916: libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia.conf

[Yaroslav Halchenko]

Package: nvidia-modprobe
Version: 550.78-1
Severity: normal

I do not think I have observed it before, and could not search anything up, so
decided to file.  Might relate more to other nvidia* packages.  During
installation of nvidia from experimental, I spotted a number of repeated error
messages from libkmod, presumably during initrd img generation:

    Setting up linux-image-6.12.17-amd64 (6.12.17-1) ...
    /etc/kernel/postinst.d/initramfs-tools:
    update-initramfs: Generating /boot/initrd.img-6.12.17-amd64
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-options.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-blacklists-nouveau.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-options.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-blacklists-nouveau.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-options.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-blacklists-nouveau.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-options.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia-blacklists-nouveau.conf
    libkmod: ERROR: conf_files_filter_out: Cannot stat directory entry: /etc/modprobe.d/nvidia.conf
    /etc/kernel/postinst.d/zz-update-grub:
    Generating grub configuration file ...

likely due to the fact that they are the (only) symlinks in that folder:

	❯ ls -l /etc/modprobe.d/
	total 32
	-rw-r--r-- 1 root root 154 Feb 16  2023 amd64-microcode-blacklist.conf
	-rw-r--r-- 1 root root   0 Aug 18  2020 deepin-screen-recorder.conf
	-rw-r--r-- 1 root root 127 Jan 31  2023 dkms.conf
	-rw-r--r-- 1 root root 154 Feb 16  2023 intel-microcode-blacklist.conf
	-rw-r--r-- 1 root root  16 Mar  8  2009 libpisock9.conf
	-rw-r--r-- 1 root root 379 Feb 24  2023 mdadm.conf
	lrwxrwxrwx 1 root root  53 Feb 26  2023 nvidia-blacklists-nouveau.conf -> /etc/alternatives/glx--nvidia-blacklists-nouveau.conf
	lrwxrwxrwx 1 root root  45 Feb 26  2023 nvidia-options.conf -> /etc/alternatives/nvidia--nvidia-options.conf
	lrwxrwxrwx 1 root root  43 Feb 26  2023 nvidia.conf -> /etc/alternatives/glx--nvidia-modprobe.conf

and they are not broken:

	❯ ls -Ll /etc/modprobe.d/nvidia*
	-rw-r--r-- 1 root root   98 Feb 26  2023 /etc/modprobe.d/nvidia-blacklists-nouveau.conf
	-rw-r--r-- 1 root root  478 Nov 15  2023 /etc/modprobe.d/nvidia-options.conf
	-rw-r--r-- 1 root root 1118 Feb 26  2023 /etc/modprobe.d/nvidia.conf

I am yet to reboot and discover if there are any negative effects as a
result .

-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (900, 'testing'), (600, 'unstable'), (300, 'experimental'), (100, 'stable-updates'), (100, 'stable-security'), (100, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.12-amd64 (SMP w/20 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages nvidia-modprobe depends on:
ii  libc6  2.41-4

nvidia-modprobe recommends no packages.

nvidia-modprobe suggests no packages.

-- no debconf information