do you remember the proposal?
thanks

> El 24 jul 2017, a las 18:39, Erik Quanstrom <quanstro@quanstro.net> escribió:
> 
> I had a discussion with Richard about this a few years ago.  Richard was no longer convinced of the solution.  at the time I agreed with his reasoning.  the comment should be changed.
> 
> - erik
> 
> 
> On Jul 24, 2017 9:03 AM, Giacomo Tesio <giacomo@tesio.it> wrote:
> In /sys/src/9/port/proc.c a comment state:
> 
> /*
> * Expects that only one process can call wakeup for any given Rendez.
> * We hold both locks to ensure that r->p and p->r remain consistent.
> * Richard Miller has a better solution that doesn't require both to
> * be held simultaneously, but I'm a paranoid - presotto.
> */
> 
> (see https://github.com/0intro/plan9/blob/master/sys/src/9/port/proc.c#L882-L887)
> 
> I'd like to know a bit more about Miller's solution as I'd like to simplify postnote.
> Any hint or source code?
> 
> 
> Giacomo
>