Messages in this thread | | | Date | Tue, 11 Dec 2012 11:25:48 +0800 | From | Xishi Qiu <> | Subject | Re: [PATCH V2] MCE: fix an error of mce_bad_pages statistics |
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On 2012/12/11 10:58, Andi Kleen wrote:
>> That sounds like overkill. There are not so many free pages in a >> typical server system. > > As Fengguang said -- memory error handling is tricky. Lots of things > could be done in theory, but they all have a cost in testing and > maintenance. > > In general they are only worth doing if the situation is common and > represents a significant percentage of the total pages of a relevant server > workload. > > -Andi >
Hi Andi and Fengguang,
"There are not so many free pages in a typical server system", sorry I don't quite understand it.
buffered_rmqueue() prep_new_page() check_new_page() bad_page()
If we alloc 2^10 pages and one of them is a poisoned page, then the whole 4M memory will be dropped.
Thanks, Xishi Qiu
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