On Wed, Dec 04 2024 at 15:56, Costa Shulyupin wrote: > On Sun, 1 Dec 2024 at 15:43, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > It is introduced by commit a46c27026da1 (blk-mq: don't schedule block > kworker on isolated CPUs) > > I don't know what to do with the remaining drivers. As long as that is not fixed, you obviously cannot change the semantics. > I am exploring the possibility of improving CPU isolation from best-effort > to guaranteed. If all drivers are fixed then the interrupt enabled state itself becomes irrelevant. If there is nothing which tickles them then they won't be raised, no? Thanks, tglx