linux-kernel - Re: [PATCH] mm/memory-failure: fix deadlock when hugetlb_optimize

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Message-Id: <20240408122955.82183316d06cfe32fbacad0e@linux-foundation.org>
Date: Mon, 8 Apr 2024 12:29:55 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Miaohe Lin <linmiaohe@...wei.com>
Cc: <naoya.horiguchi@....com>, <linux-mm@...ck.org>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/memory-failure: fix deadlock when
 hugetlb_optimize_vmemmap is enabled

On Sun, 7 Apr 2024 16:54:56 +0800 Miaohe Lin <linmiaohe@...wei.com> wrote:

> When I did hard offline test with hugetlb pages, below deadlock occurs:
> 
> ...
>
> Fix this by calling drain_all_pages() instead.

Thanks.  I propose

Fixes: 510d25c92ec4a ("mm/hwpoison: disable pcp for page_handle_poison()")
Cc: <stable@...r.kernel.org>