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A comment on Intel Processor Instability Causing Oodle Decompression Failures. Parent comment

Re:Intel Processor Instability Causing Oodle Decompression F... by hmottestad on Friday February 23, 2024 @06:41AM (#39479420)
I would assume that software can always fail in the event of a bug in the hardware. That's why systems that are really redundant, for instance flight control computers, have several computers that have to form a consensus of sorts.
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Re:Intel Processor Instability Causing Oodle Decompression F... by eqvinox on Friday February 23, 2024 @07:37AM (#39479796)
It doesn't even need a bug in the hardware; cosmic rays or alpha particles can also cause the same type of issue. For those, making systems redundant is indeed a good solution.

For the situation of an actual (consistent) hardware bug, redundancy wouldn't help… the redundant system would have the same bug. Redundancy only helps for random-style issues. (Which, to be fair, the one we're talking about here seems to be.)

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Re:Intel Processor Instability Causing Oodle Decompression F... by davrosthedalek on Friday February 23, 2024 @08:03AM (#39480045)
That's why some redundant systems use alternative implementations for the parallel paths. Less likely that a hardware bug will manifest the same way in all implementations.
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