On Tuesday, 10 October 2023 14:17:50 CEST Vincent Blut wrote: > > Neither does amd64. So it appears something else is causing > > CONFIG_PREEMPT_DYNAMIC to be enabled on amd64. > > From the commit message introducing PREEMPT_DYNAMIC:ยน > > CONFIG_PREEMPT_DYNAMIC is automatically selected by CONFIG_PREEMPT if > the architecture provides the necessary support > (CONFIG_STATIC_CALL_INLINE, CONFIG_GENERIC_ENTRY, and provide with > __preempt_schedule_function() / __preempt_schedule_notrace_function()).
And CONFIG_PREEMPT was explicitly disabled on 2007-05-21 in 8ec9ee1435ba3ac97f9f0e7c5b879aac8d636f4a (I couldn't find an older commit). So I guess the heuristic isn't applied as the precondition already fails. Thanks for finding that part :-)
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