Re: [GIT pull] locking/urgent for v5.10-rc6

[Peter Zijlstra]

On Mon, Nov 30, 2020 at 09:55:44AM -0800, Linus Torvalds wrote:

> Yes, yes, I can very well imagine some hardware doing a "idle until
> you sense an interrupt, but don't actually take it". It's not
> _impossible_. But it's certainly not normal.

A lot of hardware actually does that, including modern x86. But yes, not
nearly everything.