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A comment on Single random bit flip causes error in certificate transparency log. Parent comment

Re:Single random bit flip causes error in certificate transp... by hda111 on Sunday July 04, 2021 @02:26PM (#27731612)
Using ECC is a no-brainer. Even the Raspberry Pi 4 has ECC RAM. It’s not particularly expensive and only a artificial limitation Intel has introduced for consumer products.
[ Parent | on HN ]
Re:Single random bit flip causes error in certificate transp... by dijit on Sunday July 04, 2021 @02:31PM (#27731641)
Thought you were wrong.

Checked it out.

You were right..

Under "1.2. Features"

https://datasheets.raspberrypi.org/cm4/cm4-datasheet.pdf

https://datasheets.raspberrypi.org/rpi4/raspberry-pi-4-produ...

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Re:Single random bit flip causes error in certificate transp... by jml7c5 on Tuesday July 06, 2021 @05:14AM (#27745863)
(See my reply to parent.)
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Re:Single random bit flip causes error in certificate transp... by jml7c5 on Tuesday July 06, 2021 @05:14AM (#27745854)
The Pi 4 uses DRAM with on-die ECC, which AFAIK does not provide any means of reporting errors (corrected or uncorrected) to the SoC's memory controller. It is effectively a cost-saving measure to improve DRAM yields. As such, it does little to guarantee that there are no memory errors.
[ Parent | on HN ]