Commit 2f04c5f8 authored May 08, 2024 by Linus Heckemann

linux: always use xz for compressing modules

The change I merged too hastily in #302300 increases the size by
~30%. This could be improved upon, but in the meantime let's go back
to xz while keeping zstd-compressed firmware (only 4.4% larger) and
_support_ for zstd-compressed modules.

parent a10842c7

nixos/doc/manual/release-notes/rl-2405.section.md

+1 −1

Original line number	Diff line number	Diff line
		@@ -53,7 +53,7 @@ Use `services.pipewire.extraConfig` or `services.pipewire.configPackages` for Pi
		- `system.etc.overlay.enable` option was added. If enabled, `/etc` is
		mounted via an overlayfs instead of being created by a custom perl script.

		- For each supporting version of the Linux kernel firmware blobs and kernel modules
		- For each supporting version of the Linux kernel firmware blobs
		are compressed with zstd. For firmware blobs this means an increase of 4.4% in size, however
		a significantly higher decompression speed.

pkgs/os-specific/linux/kernel/common-config.nix

+1 −2

Original line number	Diff line number	Diff line
		@@ -951,8 +951,7 @@ let
		ZEROPLUS_FF = yes;

		MODULE_COMPRESS = whenOlder "5.13" yes;
		MODULE_COMPRESS_XZ = whenOlder "5.13" yes;
		MODULE_COMPRESS_ZSTD = whenAtLeast "5.13" yes;
		MODULE_COMPRESS_XZ = yes;

		SYSVIPC = yes; # System-V IPC