From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Wu, Fengguang" <fengguang.wu@intel.com>,
"gong.chen@linux.intel.com" <gong.chen@linux.intel.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RESEND PATCH v2 1/4] mm/hwpoison: fix traverse hugetlbfs page to avoid printk flood
Date: Tue, 17 Sep 2013 07:23:45 +0800 [thread overview]
Message-ID: <20130916232345.GA3241@hacker.(null)> (raw)
In-Reply-To: <1379369397-ld8lbcn-mutt-n-horiguchi@ah.jp.nec.com>
On Mon, Sep 16, 2013 at 06:09:57PM -0400, Naoya Horiguchi wrote:
>On Mon, Sep 16, 2013 at 09:50:06PM +0000, Luck, Tony wrote:
>> This is good - but the real solution is to stop poisoning entire huge pages ... they should
>> be broken into 4K pages and just one 4K page should be poisoned.
>>
>> Naoya Horiguchi: I thought that you were looking at this problem some months ago. Any progress?
>
>Sorry, I have no meaningful progress on this. Splitting hugepages is not
>a trivial operation, and introduce more complexity on hugetlbfs code.
>I don't hit on any usecase of it rather than memory failure, so I'm not
>sure that it's worth doing now.
Agreed. ;-)
Regards,
Wanpeng Li
>
>Thanks,
>Naoya Horiguchi
>
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next prev parent reply other threads:[~2013-09-16 23:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-14 23:53 [RESEND PATCH v2 1/4] mm/hwpoison: fix traverse hugetlbfs page to avoid printk flood Wanpeng Li
2013-09-14 23:53 ` [RESEND PATCH v2 2/4] mm/hwpoison: fix miss catch transparent huge page Wanpeng Li
2013-09-15 0:14 ` Andi Kleen
2013-09-14 23:53 ` [RESEND PATCH v2 3/4] mm/hwpoison: fix false report 2nd try page recovery Wanpeng Li
2013-09-15 0:15 ` Andi Kleen
2013-09-14 23:53 ` [RESEND PATCH v2 4/4] mm/hwpoison: fix the lack of one reference count against poisoned page Wanpeng Li
2013-09-15 0:16 ` Andi Kleen
2013-09-15 0:13 ` [RESEND PATCH v2 1/4] mm/hwpoison: fix traverse hugetlbfs page to avoid printk flood Andi Kleen
2013-09-16 21:50 ` Luck, Tony
2013-09-16 22:09 ` Naoya Horiguchi
2013-09-16 23:23 ` Wanpeng Li
2013-09-16 23:23 ` Wanpeng Li [this message]
2013-09-16 23:44 ` Luck, Tony
2013-09-17 0:08 ` Wanpeng Li
2013-09-17 0:08 ` Wanpeng Li
2013-09-17 16:47 ` Luck, Tony
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