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Tracking Down a Single-Bit RAM Error

June 24th, 2010 06:10 admin Leave a comment Go to comments

Hanji writes “We have discussed the potential effects of and protections against cosmic ray radiation here before, but for the average computer user, it’s an obscure threat that doesn’t affect them in any real way. Well, here’s a blog post that describes a strange segfault and, after extensive debugging, traces it down to a single bit flip, probably caused by a stray a cosmic ray. Lots of helpful descriptions of Linux debugging techniques in this one, and a pretty clear demonstration that this can be a real problem. I know I’m never buying a desktop without ECC RAM ever again!” The author acknowledges that it might not have been a cosmic ray-based error, but the troubleshooting steps are interesting no matter what the cause.

Source: Tracking Down a Single-Bit RAM Error

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