On Tue, May 05, 2020 at 08:48:16AM -0700, Matthew Wilcox wrote:
> Usually a 64-bit system refers to the width of a pointer. Here, it's
> referring to the width of the memory system, which is rather confusing.
> How about "In the above example" instead of "So, on 64 bit systems".
Yes, that should not talk about 64-bit systems but about the length of
the word the memory controller uses to create the ECC check bits out of.
That whole doc needs checking/fixing.
> The extra 8 bits which are used for error detection and correction
> are referred to as the *syndrome*\ [#f1]_\ [#f2]_.
Well, I know it as "The syndrome field uniquely identifies the failing
bit positions of a correctable ECC error." and depending on the error
severity you can have correctable and uncorrectable syndromes.
I don't think the syndrome is the ECC word but it might be, depending
on the ECC algorithm used or it might be that what I pasted above. That
would need deeper digging.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
