#Linux #kernel patches to allow enabling #PREEMPT_RT (aka proper #realtime support) for x86, ARM64, and Risc-V were posted for review:
https://lore.kernel.org/lkml/20240906111841.562402-1-bigeasy@linutronix.de/
"The printk bits required for PREEMPT_RT are sitting in linux-next. This was the last known roadblock for PREEMPT_RT. The RT queue has additionally the "atomic console" for the 8250 UART which is not yet in linux-next.[…]"
See also these earlier other related toots:
https://fosstodon.org/@kernellogger/113084762433941141
https://fosstodon.org/@kernellogger/113085326251565367