Ralf Baechle writes: > I would suggest to disable interrupts around accesses that potencially > could result in DB exceptions and just to make sure he is not getting > trapped by a non-blocking load by making some use of any value read > from the device. Writes could be posted depending on bus type. So > having a read from the same device would force the write to complete. > > Ralf Ya, I was about to try that. I could be getting an interrupt between the time the read is issued and the timeout occurs on the GBus. Also, doing a dummy read on the GBus to a device that shouldn't fault prior to (for reads) or after (for writes) the potentially faulting one to force ordering seems like a good idea too. -- Dave Johnson Starent Networks
