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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