Questions about locking; turnstiles and sleeping threads

[Adrian Chadd]

On 12 November 2014 19:48, Adrian Chadd <adrian at freebsd.org> wrote:
> kan pointed out that we should likely do a WITNESS_WARN() in the
> relevant spots in the callout code so we catch these before it
> happens.
>
> I'll see what we can add to -HEAD to be pro-active about it.

Amusingly, I tried adding it and it made my laptop turn to soup very
quickly - among other things, the TCP timer callouts are all setup
with non sleep locks held.



-adrian