Messages in this thread | | | Date | Wed, 04 Apr 2001 16:00:22 -0700 | From | David Brownell <> | Subject | Re: Contacts within AMD? AMD-756 USB host-controller blacklisted due to |
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> Apr 4 14:47:15 campari kernel: usb-ohci.c: bogus NDP=204 for OHCI > usb-00:07.4 > Apr 4 14:47:15 campari kernel: usb-ohci.c: rereads as NDP=4
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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