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Re:ECC matters by knorker on Sunday January 03, 2021 @01:51PM (#25623996)
The best integrity checking is "end to end". The problem with non-ECC is that there are no "ends" that are trustworthy.

I guess in theory some software could produce signed data in CPU cache, and "commit" it to RAM as a verified block.

But the overhead would be enormous. Would you slow down your CPU by half in order to not pay 12.5% more for RAM?

Hmm, I wonder what SGX and similar do about this.

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