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SubjectRe: [PATCH] RAS/CEC: Add debugfs switch to disable at run time
On Thu, Apr 18, 2019 at 3:02 PM Tony Luck <> wrote:
> Useful when running error injection tests that want to
> see all of the MCi_(STATUS|ADDR|MISC) data via /dev/mcelog.
> Signed-off-by: Tony Luck <>

We saw the same problem, CONFIG_RAS hijacks all the
correctable memory errors, which leaves mcelog "broken"
silently. I know it is arguable, but until we can switch from
mcelog to rasdaemon, mcelog should still work as before.

I like this idea of disabling it at runtime, so:

Acked-by: Cong Wang <>


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