Re: [PATCH REPOST] irq_poll: Add local_bh_disable() in cpu_dead notifier

[Sebastian Andrzej Siewior]

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