Posted Aug 31, 2009 23:40 UTC (Mon) by jzbiciak
(✭ supporter ✭
In reply to: HWPOISON
Parent article: HWPOISON
I'll quote Andi Kleen's post (that I linked above) since I think it's abundantly clear:
Newer Intel CPUs support a new class of machine checks called recoverable action optional.
Action Optional means that the CPU detected some form of corruption in
the background and tells the OS about using a machine check
exception. The OS can then take appropiate action, like killing the
process with the corrupted data or logging the event properly to disk.
Read that again: Background scrubbing gives a machine check. The machine check is action optional and it can do just as you suggest. It's still a machine check.
to post comments)