Messages in this thread | | | From | Linus Torvalds <> | Date | Wed, 02 May 2018 02:53:38 +0000 | Subject | Re: [PATCH 0/6] use memcpy_mcsafe() for copy_to_iter() |
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On Tue, May 1, 2018 at 7:26 PM Dan Williams <dan.j.williams@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
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