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flatcar / Flatcar

Flatcar project repository for issue tracking, project documentation, etc.
https://www.flatcar.org/
Apache License 2.0
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[RFE] Upgrade to a newer LTS or stable Linux Kernel #1527

Open ader1990 opened 2 months ago

ader1990 commented 2 months ago

Current situation

Currently, the alpha/beta/stable branches have the same LTS Linux Kernel: 6.6.y.

Impact

we should be able have at least the alpha/main branch with a newer stable kernel to be able to prevent sudden lot of work when a new LTS appears and fix any issues gradually. Testing all the branches with the same kernel might not show transient or hard to reproduce issues.

Ideal future situation

According to today's https://www.kernel.org/, the latest stable is 6.10.y (a good target to move to).

ader1990 commented 2 months ago

Upgrading to 6.10.y is currently blocked by the zfs support, as the last zfs release only supports Linux kernel up to 6.9 -> see https://github.com/openzfs/zfs/releases/tag/zfs-2.2.5

ader1990 commented 2 months ago

ZFS support for the 6.10.y kernel has been released: https://github.com/openzfs/zfs/releases/tag/zfs-2.2.6

jepio commented 2 months ago

I think this is bad timing for a kernel upgrade. 6.10 is not declared an LTS yet, and once you merge a kernel into alpha, it will end up in stable a couple of months later. Flatcar stable users like stability.