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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 inetknght on Monday November 15, 2021 @06:55PM (#29234645)
> you can still buy DDR3 --- used --- from various shops in China, and it'll be 100% perfect and Rowhammer-free because it was made before the insane process shrinkages that caused it

That's demonstrably false. I remember rowhammer being thought of and demonstrated on DDR3 modules.

[0] https://hammertux.github.io/rowhammer-ffs-ddr3

[ Parent | on HN ]
Re:Blacksmith – Rowhammer bit flips on all DRAM devices toda... by userbinator on Monday November 15, 2021 @07:55PM (#29235174)
Rowhammer started appearing in newer DDR3; see the original paper (figure 3): https://news.ycombinator.com/item?id=8713411

The tl;dr is that everything 2009 and older is good, 2010-2011 is possibly bad, 2012 and newer is almost certainly bad.

[ Parent | on HN ]