more random thought: I've had issues with bad RAM two times in my life. it takes me some time to get from "huh, my browser segfaults pretty often, that seems weird" to "maybe I have bad RAM?". if Linux had support for scanning for bad RAM on segfault, that'd be cool
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Having worked for a while on memtest86 I can assure you that testing if modern RAM is bad is difficult. The easy cases rarely make it out of the factory. What you are left with are difficult cases like burst transfer errors. Using ECC is a much easier solution.
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interesting. the cases I've had (well, at least the ones I noticed) were really blatant - one specific bit, or multiple bits, of RAM being stuck to a fixed value
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e.g. scan linearly through the memory, only pinning the page you're currently scanning, and let the memory management code steal all other pages as normal
Thanks. Twitter will use this to make your timeline better. UndoUndo
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