reopening #111 (ZFS)

[truatpasteurdotfr]

reporting that the kernel module build and loads:

[tru@mba15-m2-nixos:~]$ uname -a
Linux mba15-m2-nixos 6.6.0-asahi #1-NixOS SMP PREEMPT_DYNAMIC Tue Jan  1 00:00:00 UTC 1980 aarch64 GNU/Linux
[tru@mba15-m2-nixos:~]$ modinfo zfs|head
filename:       /run/booted-system/kernel-modules/lib/modules/6.6.0-asahi/extra/zfs.ko.zst
version:        2.2.3-1
license:        CDDL
license:        Dual BSD/GPL
license:        Dual MIT/GPL
author:         OpenZFS
description:    ZFS
alias:          zzstd
alias:          zcommon
alias:          zunicode
[tru@mba15-m2-nixos:~]$ lsmod|grep zfs
zfs                  4440064  6
spl                   131072  1 zfs

/etc/nixos/configuration.nix
...

# ZFS
boot.supportedFilesystems = [ "zfs" ];
boot.zfs.forceImportRoot = false;
networking.hostId= "007f0200";
#        error: Package ‘zfs-kernel-2.2.3-6.6.0-asahi’ in /nix/store/r944d4j7p39b769x7ykbsiz5wm3q8agf-nixos-23.11/nixos/pkgs/os-specific/linux/zfs/generic.nix:213 is marked as broken, refusing to evaluate.
nixpkgs.config.allowBroken = true;

[truatpasteurdotfr]

oops forgot to report that I was using https://github.com/tpwrules/nixos-apple-silicon/releases/tag/release-2024-03-24

[karlskewes]

Original issue: #111

[lloeki]

AIUI the main pain point is:

1. Asahi patches track a recent kernel
2. ZFS module tracks a more stable kernel

So with a single linux-asahi kernel package:

• either a more stable kernel is tracked and Apple Silicon support via Asahi ends up being dragged down by ZFS
• or there's a risk of ZFS not building anymore against the too-recent kernel required by the latest Asahi patchset

Could there be another strategy? I'm thinking that it ties in with issues such as #234, where intentionally targeting a stable channel conflicts with the kernel version matching the Asahi patchset requires a Rust compiler more recent than what's provided by 24.05.

So, what if there were two linux-asahi kernel packages? One that would track the latest Asahi patches and one that would track a more stable kernel with a non-latest Asahi patchset but compatible with stable NixOS channels?