Re: [PATCH v2 0/3] support for broken memory modules (BadRAM)
From: Craig Bergstrom <hidden>
Date: 2011-06-24 01:03:50
On Thu, Jun 23, 2011 at 10:12 AM, Luck, Tony [off-list ref] wrote:
quoted
I don't think it makes sense to handle something like that with a list. The compact representation currently in badram is great for that.I'd tend to agree here. Rick has made a convincing argument that there are significant numbers of real world cases where a defective row/column in a DIMM results in a predictable pattern of errors. The ball is now in Google's court to take a look at their systems that have high numbers of errors to see if they can actually be described by a small number of BadRAM patterns as Rick has claimed.
Hi All, We (Google) are working on a data-driven answer for this question. I know that there has been some analysis on this topic on the past, but I don't want to speculate until we've had some time to put all the pieces together. Stay tuned for specifics. Cheers, CraigB
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