On 16/11/2017 17:23, Andrew Lunn wrote: > Maybe take a look at your memory barriers. Most accesses using the > _relaxed() version, i.e, no barrier. And then there are specific > barriers when needed. One could be missing. > > As a quick test, drop the _relaxed. Force a barrier with each > access. If that works, it is a clear indication you have a barrier > problem.
That was an interesting suggestion, thanks! Unfortunately, adding wmb() in dozens of strategic places doesn't prevent the issue where network connectivity is lost :-( Regards.
