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A comment on Blacksmith – Rowhammer bit flips on all DRAM devices today despite mitigations. Parent comment

Re:Blacksmith – Rowhammer bit flips on all DRAM devices toda... by dogma1138 on Monday November 15, 2021 @04:56PM (#29233347)
That’s not exactly correct whilst it does there mainly to allow for higher densities and frequencies it’s designed to prevent bit flips from happening on chip.

It’s not end to end ECC as in it doesn’t prevent flips that happen on the bus or in CPU cache but it does prevent single bit errors on DRAM.

[ Parent | on HN ]
Re:Blacksmith – Rowhammer bit flips on all DRAM devices toda... by eqvinox on Monday November 15, 2021 @07:01PM (#29234705)
> it’s designed to prevent bit flips from happening on chip.

Bit flips that are getting more and more common as the RAM cells are getting tinier and tinier, the stored charges ever smaller and smaller, and thus susceptible to flipping…

[ Parent | on HN ]