linux-kernel - Re: [PATCH 3/3] Fix the wrong corrupted page information of hugetlb page.

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Message-ID: <4D392227.6030603@np.css.fujitsu.com>
Date:	Fri, 21 Jan 2011 15:05:27 +0900
From:	Jin Dongming <jin.dongming@...css.fujitsu.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
CC:	Andi Kleen <andi@...stfloor.org>,
	Huang Ying <ying.huang@...el.com>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	LKLM <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] Fix the wrong corrupted page information of hugetlb
 page.

Hi, Naoya-san

(2011/01/21 14:12), Naoya Horiguchi wrote:
> Hi,
> 
>> @@ -991,18 +995,32 @@ int __memory_failure(unsigned long pfn, int trapno, int flags)
>>  			action_result(pfn, "free buddy", DELAYED);
>>  			return 0;
>>  		} else if (PageHuge(hpage)) {
>> -			/*
>> -			 * Check "just unpoisoned", "filter hit", and
>> -			 * "race with other subpage."
>> -			 */
>>  			lock_page_nosync(hpage);
>> -			if (!PageHWPoison(p)
>> -			    || (hwpoison_filter(p) && TestClearPageHWPoison(p))
>> -			    || (p != hpage && TestSetPageHWPoison(hpage))) {
>> -				atomic_long_sub(nr_pages, &mce_bad_pages);
>> +			/* Check "just unpoisoned". */
>> +			if (!PageHWPoison(hpage)) {
>                                           ^^^^^
> Isn't this "p" (as you changed in patch 2/3) ?
Yes, you are right.
I will send a new one as soon as possible.

Thanks.

Best Regards,
Jin Dongming
> 
> -- Naoya Horiguchi
> --
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