On 02/10/19 16:58, Torvald Riegel wrote:
> This example looks like Dekker synchronization (if I get the intent right).
It is the same pattern. However, one of the two synchronized variables
is a counter rather than just a flag.
> Two possible implementations of this are either (1) with all
On Wed, 2019-10-02 at 15:20 +0200, Paolo Bonzini wrote:
> On 02/10/19 13:05, Jan Glauber wrote:
> > The arm64 code generated for the
> > atomic_[add|sub] accesses of ctx->notify_me doesn't contain any
> > memory barriers. It is just plain ldaxr/stlxr.
> >
> > From my understanding this is not
On 02/10/19 13:05, Jan Glauber wrote:
> The arm64 code generated for the
> atomic_[add|sub] accesses of ctx->notify_me doesn't contain any
> memory barriers. It is just plain ldaxr/stlxr.
>
> From my understanding this is not sufficient for SMP sync.
>
>>> If I read this comment correct:
>>>
