Re: Yocto Zeus -docker/PREEMPT_RT
Last entry, from July 2021, in this blog says not supported;No, that remark is completely wrong and is mixing up things.Docker for RTOS? - General Discussions / Feature Requests - Docker Community Forums
"RTLinux" has nothing to do with the mainstream Linux kernel (except
that RTLinux can run the Linux kernel underneath)
Forget about those remarks.
Mainstream Linux is now almost fully-featured with the PREEMPT_RT work
merged, and the Linux kernel can be configured as an RTOS capable
There is more to hard real-time than just the kernel, but that is the
I would see *no reason* why Docker should not run on Linux, even when
preemptive realtime is enabled.
In contrast when searching for the PREEMPT_RT / Docker combination I
see successful results.
What is probably the cause for Docker not working, is that the kernel
configuration for the PREEMPT_RT a.k.a. "-rt" kernel in Yocto does not
enable all name space support and other capabilities that Docker
I would start comparing .config files at this point, together with the
debug/log output of Docker.
Especially first learn which CONFIG_ options Docker depends on.
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Sidebranch Embedded Systems
Eindhoven, The Netherlands
On Wed, Feb 16, 2022 at 1:15 PM Monsees, Steven C (US) via
Under Yocto, will docker & PREEMPT_RT kernels function correctly, is this combination supported ?