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Subject: Re: [mm-unstable PATCH v5 4/8] mm, hwpoison: make unpoison aware of
 raw error info in hwpoisoned hugepage
To:     =?UTF-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPoyDnm7TkuZ8p?= 
        <naoya.horiguchi@nec.com>
CC:     Naoya Horiguchi <naoya.horiguchi@linux.dev>,
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        Andrew Morton <akpm@linux-foundation.org>,
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 <20220711092400.GA2741993@hori.linux.bs1.fc.nec.co.jp>
From:   Miaohe Lin <linmiaohe@huawei.com>
Message-ID: <9e800b26-db85-f8a7-f268-3fb99a748cf1@huawei.com>
Date:   Mon, 11 Jul 2022 19:13:53 +0800
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On 2022/7/11 17:24, HORIGUCHI NAOYA(堀口 直也) wrote:
> On Mon, Jul 11, 2022 at 03:09:01PM +0800, Miaohe Lin wrote:
...
> 
> Basically raw_hwp_info is not available to userspace (it might be recorded
> in dmesg but not available via /proc/kpageflags), so unpoisoning error
> subpages one-by-one is sometimes bothering.  If someone would like to
> unpoison one-by-one (I expect nobody would), I can do this.

I see. Many thanks for explanation.

> 
>> Thanks.
> 
> Thank you!
> 
> - Naoya Horiguchi
>