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Dealing with faulty RAM modules in 2026 (blog.kumio.org)
submitted 10 months ago by to c/linux@programming.dev
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How to test and safely keep using your janky RAM without compromising stability using memtest86+ and the memmap kernel param.

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[–] 4 points 10 months ago (1 child)

This is amazing!! I had no idea this was possible!

One point of feedback: not having worked with memmap before, it is not immediately obvious to me which hex means what (I am guessing RANGE@START? ). Would be nice to have a link to an explanation there.

I am definitely sharing this, thank you for writing the blog!

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  • [–] [S] 6 points 10 months ago*

    Thank you, I'm glad you like!

    not having worked with memmap before, it is not immediately obvious to me which hex means what (I am guessing RANGE@START? ). Would be nice to have a link to an explanation there.

    I just have the link to the kernel docs because I think they do a better job explaining it than I would 😁

    But yeah, basically. Except for this use-case you want RANGE$START not @. And you can use human sizes like 128M$RANGE.

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