From: "HORIGUCHI NAOYA(堀口 直也)" <naoya.horiguchi@nec.com>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>,
Naoya Horiguchi <nao.horiguchi@gmail.com>,
Oscar Salvador <osalvador@suse.de>,
Muchun Song <songmuchun@bytedance.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 1/2] mm,hwpoison: fix race with hugetlb page allocation
Date: Tue, 17 Aug 2021 05:40:45 +0000 [thread overview]
Message-ID: <20210817054044.GA449241@hori.linux.bs1.fc.nec.co.jp> (raw)
In-Reply-To: <20210816175646.GA1600630@agluck-desk2.amr.corp.intel.com>
On Mon, Aug 16, 2021 at 10:56:46AM -0700, Luck, Tony wrote:
> On Tue, Aug 17, 2021 at 02:12:07AM +0900, Naoya Horiguchi wrote:
> > This dump indicates that HWPoisonHandlable() returned false due to
> > the lack of PG_lru flag. In older code before 5.13, get_any_page() does
> > retry with shake_page(), but does not since 5.13, which seems to me
> > the root cause of the issue. So my suggestion is to call shake_page()
> > when HWPoisonHandlable() is false.
> >
> > Could you try checking that the following diff fixes the issue?
> > I could still have better fix (like inserting shake_page() to other
> > retry paths in get_any_page()), but the below is the minimum one.
>
> Tried it ... and it works! Injected and recovered from a thousand
> errors without seeing any problems.
Thank you for testing, I've submitted a patch just now.
- Naoya
next prev parent reply other threads:[~2021-08-17 5:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-03 23:36 [PATCH v6 0/2] hwpoison: fix race with hugetlb page allocation Naoya Horiguchi
2021-06-03 23:36 ` [PATCH v6 1/2] mm,hwpoison: " Naoya Horiguchi
2021-06-04 23:55 ` Mike Kravetz
2021-08-12 4:28 ` Luck, Tony
2021-08-12 9:03 ` HORIGUCHI NAOYA(堀口 直也)
2021-08-12 15:25 ` Luck, Tony
2021-08-13 6:29 ` HORIGUCHI NAOYA(堀口 直也)
2021-08-13 15:07 ` Luck, Tony
2021-08-16 17:12 ` Naoya Horiguchi
2021-08-16 17:56 ` Luck, Tony
2021-08-17 5:40 ` HORIGUCHI NAOYA(堀口 直也) [this message]
2021-06-03 23:36 ` [PATCH v6 2/2] mm,hwpoison: make get_hwpoison_page() call get_any_page() Naoya Horiguchi
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