RT_PREEMPT Patch and Activation for Debian 11 with kernel 5.10.72

[Rolf Anderson]

We have Debian 11 and linux kernel 5.10.72, both may have been slightly modified by our supplier.

We are using VMware Workstation 17 Pro. How can I apply and activate the RT_PREEMPT patch?

I would like to do this both in VMware and on my linux terminal. What command(s) show that this

patch is present/active or not? Thanks!

[Technogeezer]

From what I see, RT_PREEMPT (or PREEMPT_RT, or RT patches, depending on who you talk to) patches are for the Linux kernel and have nothing to do with VMware. You’ll have to check with wherever you get your kernels from  to see if they can include the patches and rebuild a real-time kernel for you.

A web search  appear to find  blogs on how to include and build kernels with these patches.

Wikipedia states that the PREEMPT_RT  patches have been accepted into the mainline Linux kernel sources as of late 2024 in kernel 6.12.

Some distros have pre-built real-time kernels available. For Debian 11, you might want to check the bullseye-backports repos to see if there’s a real-time alternate kernel already built for you