Messages in this thread | | | Date | Tue, 11 Dec 2012 10:25:00 +0800 | From | Xishi Qiu <> | Subject | Re: [PATCH V2] MCE: fix an error of mce_bad_pages statistics |
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On 2012/12/10 23:38, Andi Kleen wrote:
>> It is another topic, I mean since the page is poisoned, so why not isolate it >> from page buddy alocator in soft_offline_page() rather than in check_new_page(). >> I find soft_offline_page() only migrate the page and mark HWPoison, the poisoned >> page is still managed by page buddy alocator. > > Doing it in check_new_page is the only way if the page is currently > allocated by someone. Since that's not uncommon it's simplest to always > do it this way. > > -Andi >
Hi Andi,
The poisoned page is isolated in check_new_page, however the whole buddy block will be dropped, it seems to be a waste of memory.
Can we separate the poisoned page from the buddy block, then *only* drop the poisoned page?
Thanks Xishi Qiu
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