Re: [RFC PATCH] x86/mce: Provide sysfs interface to show CMCI storm state

["BeSerra, Christopher" <beserra@amazon.com>]

There are corner cases where the CE count is 0 when a storm occurs.  EDAC completely missed logging CEs.

On 6/1/21, 1:41 PM, "Luck, Tony" <tony.luck@intel.com> wrote:

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    > But I'm unclear as to what this whole use case is. The very first
    > "Scripts that process error logs" already sounds like a bad idea - I'd
    > expect userspace consumers to open the trace_mce_record() and get the
    > MCE records from there. And in that case CMCI storm shouldn't matter...

    I think the problem is knowing that many errors are being missed because
    of the switch to poll mode. All methods to track errors, including the trace_mce_record()
    technique are equally affected by missed errors.

    But maybe Chris can better describe what the problem is ...

    -Tony