[Pkg-zfsonlinux-devel] Bug#1121154: Bug#1121154: zfs-dkms: module fails to build for Linux 6.18

[Aron Xu]

Control: tags -1 + moreinfo

On Fri, Dec 26, 2025 at 4:15 AM Stephan Seitz
<stse+debianbugs at rootsland.net> wrote:
>
> Dear Maintainer,
>
> 2.3.5-2 is not fixing the compiling error with kernel 6.18:
>
> checking kernel source version... 6.18.2
> /var/lib/dkms/zfs/2.3.5/build/configure: 21563: test: xyes: unexpected operator
> configure: error:
>         *** Cannot build against kernel version 6.18.2.
>         *** The maximum supported kernel version is 6.17.
>

However this works for me with kernel package from experimental, would
you mind to give more detail?

Loading new zfs/2.3.5 DKMS files...
Building for 6.18-amd64

Building initial module zfs/2.3.5 for 6.18-amd64
Sign command: /lib/modules/6.18-amd64/build/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub
Certificate or key are missing, generating self signed certificate for MOK...
openssl not found, can't generate key and certificate.

Running the pre_build script................. done.
Building module(s)........... done.
Running the post_build script... done.
Installing /lib/modules/6.18-amd64/updates/dkms/zfs.ko
Installing /lib/modules/6.18-amd64/updates/dkms/spl.ko
Running depmod... done

||| Name                      Version       Architecture Description
+++-=========================-=============-============-==================================
ii  linux-headers-6.18-amd64  6.18.2-1~exp1 amd64        Header files
for Linux 6.18-amd64
ii  linux-headers-6.18-common 6.18.2-1~exp1 all          Common header
files for Linux 6.18