On Tue, May 1, 2018 at 7:26 PM Dan Williams <dan.j.willi...@intel.com> wrote:
> Right, but the only way to make MCE non-fatal is to teach the machine > check handler about recoverable conditions. This patch teaches the > machine check handler how to recover copy_to_iter() errors. Why not just unmap the page and remap a new page in its place? Meaning that it needs absolutely no special error handling in the callers. IOW, treat it *exactly* like the whole page poisoning. We _have_ the technology. Why does this code think it's such a special snow-flake? Linus