3 ms·
Technically, SECDED cannot reliably detect errors involving more then 3 bits since they might generate a valid code, they might not however and in that case the
by acveilleux 12y ago
Technically, SECDED cannot reliably detect errors involving more then 3 bits since they might generate a valid code, they might not however and in that case they might be detected as single or double bit error or possible something else.
- yuhong 12y agoAlso the typical reaction to an uncorrectable ECC error is to halt the system with a NMI.
- makomk 12y agoYeah, ECC is going to make exploiting this reliably a lot harder - you'd need to flip three or more bits in the right combination, without first hitting a combination of bits that'd be detected as an uncorrectable error. Google's report suggests they haven't even been able to cause uncorrectable two-bit errors yet, let alone undetectable three-bit ones.