Description
The PREEMPT_RT patch set has only a handful patches left until it can be enabled on the X86 Architecture at the time of writing. The work has not finished once the patches are fully merged. A new issue is how to not break parts of PREEMPT_RT in future development by making assumption which are not compatible or lead to large latencies. Another problem is how to address limitations on PREEMPT_RT like the big softirq/ bottom halves lock which can lead to high latencies. Speaker: Sebastian Siewior, @Linutronix Slide info: https://lpc.events/event/16/contributions/1208/attachments/1034/1984/Plumbers_2022_how_to_no_break_rt.pdf