Roadmap for 6.12?

[kemfic]

Seems like PREEMPT_RT finally got mainlined into the linux kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=baeb9a7d8b60b021d907127509c44507539c15e5

I was wondering what the roadmap would look like for getting that downstream into NILRT.

[gratian]

Hi @kemfic

For Intel x64 based targets:

• We are currently working on validating the 6.6 kernel upgrade (available for testing as packagegroup-ni-next-kernel). The tentative plan is to ship this update at the end of this quarter. Please note that this is subject to change depending on how the testing goes.
• After 6.6 ships we will upgrade the 'next' kernel packages to 6.12 as it is the next available upstream LTS kernel. This upgrade will then get tested/validated over a couple of quarters in 2025.

For ARM 32-bit based targets:

• There are no current planned major kernel upgrades as the hardware is not recommended for new designs (this is also subject to change).

The best way to keep track of NILRT kernel development is to follow our GitHub repo here: https://github.com/ni/linux/

Finally I wanted to mention that while in theory PREEMPT_RT can now be enabled in a 6.12 upstream kernel, not all the patches are yet upstream: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/tree/patches?h=linux-6.12.y-rt-patches so in practice we'll still need some out-of-tree PREEMPT_RT patches in order to get the best RT performance out of these systems.