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SubjectRE: [PATCH v8] x86: mce: kexec: switch MCE handler for kexec/kdump
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> If only APEI EINJ could be taught to do delayed injection, regardless of
> OS kernel running. Tony, is something like that even possible at all?

Use:

# echo 1 > notrigger

that allows you to plant a land-mine in memory that will get tripped later. Pick the memory address in a clever way
and you can have the MCE trigger when some particular function runs.

-Tony
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