The Null Device

Someone has written a Linux kernel patch which allows it to use defective RAM modules. The patch finds damaged areas and marks them as unusable (not unlike bad sectors on hard disks), allowing the good ~99% of the module to be used, rather than leaching into the water table in a landfill. If this idea takes off, if Microsoft put it into Windows and RAM manufacturers start selling imperfect memory cheaply rather than trashing it, it could ease the environmental costs of computer manufacturing.

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