On 2022-02-10 22:34:32 [-0800], Christoph Hellwig wrote: > On Thu, Feb 10, 2022 at 01:33:39PM +0100, Sebastian Andrzej Siewior wrote: > > You need to handle the pending softirqs. If you don't handle them > > immediately or in a deterministic say (like on IRQ exit) then they will > > be handled at a random point. > > Yes. Just like regular interrupts. With the exception that this one was already handled and should be handled and not delayed until the next interrupt. And as I said, on NO_HZ you get a warning about unhandled soft-irqs if the CPU goes idle. Sebastian