[Bug 2095138] Re: Failed to build against linux-generic 6.8 and 6.11 with stable backports:
Ubuntu Foundations Team Bug Bot
2095138 at bugs.launchpad.net
Wed Feb 26 20:33:23 UTC 2025
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https://bugs.launchpad.net/bugs/2095138
Title:
Failed to build against linux-generic 6.8 and 6.11 with stable
backports:
Status in backport-iwlwifi-dkms package in Ubuntu:
In Progress
Status in backport-iwlwifi-dkms source package in Jammy:
In Progress
Status in backport-iwlwifi-dkms source package in Noble:
In Progress
Status in backport-iwlwifi-dkms source package in Oracular:
In Progress
Status in backport-iwlwifi-dkms source package in Plucky:
In Progress
Bug description:
We bump into a few problems when dealing with ABI/API breakages due to
stable fixes backports:
1. KERNEL_VERSON has limits for the 3 numbers. They must be under 255
or saturated to 255. While stable updates can go way beyong, e.g.
v4.4.302, v4.9.337, v4.14.336, v4.19.325, v5.4.288, the next one going
break the ceiling soon is v5.10.232, and v5.15.175 is on the way, too.
We cannot use KERNEL_VERSON to detect ABI/API changes in such cases.
2. Ubuntu kernels may backport those stable fixes out of the original
order, meaning the applied version may differ between
mainline/generic/derived kernels.
3. generic-6.8 is tracking v6.6.y and v6.10.y, and the KERNEL_VERSION
will stay 6.8.12(?) forever, becase we simply cannot change it to
6.6.x nor 6.10.x.
In these situations, we need some kind of build time detection, and
zfs already has such mechanism.
This is a follow-up for bug 2089385.
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