Means that your system would have oopsed if it hadn't
tested for the bogus register read (NDP). That's only one
path; other bogus reads (which could also oops) on other
paths are undetected. Slightly less-bogus reads on that
particular path may not be detected, and can still oops.
> please correct me if i'm wrong i only don't want to blacklist complete
> chipset-series
Then feel free to develop and submit a better fix. That'd
be more practical if AMD's workaround were public. As I
understand it, the bulk of the production chips have this
erratum. More power to RedHat getting info from AMD.
Meanwhile, this patch improves robustness.
- Dave
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