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A comment on Kubernetes reinvented virtual machines in a good sense. Parent comment

Re:Kubernetes reinvented virtual machines in a good sense by mr_toad on Monday August 01, 2022 @12:44AM (#32302167)
They customise, backport patches, and use different kernel versions.

If you run kernel version A in docker, and try and run a container that was designed to use kernel version B you may run into problems.

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Re:Kubernetes reinvented virtual machines in a good sense by Maursault on Monday August 01, 2022 @03:12PM (#32310771)
Sure, I can imagine, but that is merely a bug, or perhaps the compatibility issue stems from misuse of a general but inaccurate claim of "Linux compatible." My expectation is specific compatibility is stated plainly in the documentation and on the box, if there is one, without ambiguity.
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Re:Kubernetes reinvented virtual machines in a good sense by josephcsible on Monday August 01, 2022 @12:55AM (#32302217)
Note that because of Linus's strict policies on userspace compatibility, A>B is basically guaranteed to always be safe, and only A<B will ever cause problems, unless distros add patches that break things.
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