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SubjectArches that don't support PREEMPT
On Tue, Sep 19, 2023 at 02:30:59PM +0200, Thomas Gleixner wrote:
> Though it just occured to me that there are dragons lurking:
>
> arch/alpha/Kconfig: select ARCH_NO_PREEMPT
> arch/hexagon/Kconfig: select ARCH_NO_PREEMPT
> arch/m68k/Kconfig: select ARCH_NO_PREEMPT if !COLDFIRE
> arch/um/Kconfig: select ARCH_NO_PREEMPT

Sounds like three-and-a-half architectures which could be queued up for
removal right behind ia64 ...

I suspect none of these architecture maintainers have any idea there's a
problem. Look at commit 87a4c375995e and the discussion in
https://lore.kernel.org/lkml/20180724175646.3621-1-hch@lst.de/

Let's cc those maintainers so they can remove this and fix whatever
breaks.

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