Re: Problem with outstanding knotes and device detach - and a fix

[Jason Thorpe <thorpej%me.com@localhost>]

> On Jul 13, 2022, at 11:25 AM, Taylor R Campbell <campbell+netbsd-tech-kern%mumble.net@localhost> wrote:
> 
> Sorry, haven't had time yet to do a full review, but I spot at least
> one problem that means this won't fly as is: kqueue_register and
> kqueue_scan both call filter_touch under a spin lock, but with your
> patch filter_touch now takes an rwlock -- which is forbidden under a
> spin lock (and it'll crash under LOCKDEBUG).

I found another issue as well and will post a follow-up later.

-- thorpej