> Sorry to interrupt, I just thought one thing: > > This mutex seems not been bind to the error page, will there be some core case > like test code or multi-poison case whick will break this mutex? The mutex is a bigger hammer than strictly needed . If there are simultaneous errors on different pages they could, int theory, proceed in parallel. But this mutex will serialize the processing. Is this a problem? Hopefully systems aren't seeing so many uncorrectable/recoverable errors that this would be a significant bottleneck. -Tony
