From: David Hildenbrand <david@redhat.com>
To: Jinjiang Tu <tujinjiang@huawei.com>,
linmiaohe@huawei.com, nao.horiguchi@gmail.com,
akpm@linux-foundation.org, xueshuai@linux.alibaba.com,
ziy@nvidia.com, osalvador@suse.de, linux-mm@kvack.org
Cc: wangkefeng.wang@huawei.com
Subject: Re: [PATCH v2] mm/memory-failure: fix infinite UCE for VM_PFNMAP'ed page
Date: Mon, 11 Aug 2025 09:54:58 +0200 [thread overview]
Message-ID: <9866c69f-e3da-4d47-bbb5-5dc2e91d71a8@redhat.com> (raw)
In-Reply-To: <20250811043323.899130-1-tujinjiang@huawei.com>
On 11.08.25 06:33, Jinjiang Tu wrote:
> is not ordinarily mapped, but was mapped through
> remap_pfn_range(), kill_accessing_process() wouldn't identify it as mapped
> even though hwpoison_pte_range() would be prepared to handle it, because
> walk_page_range() will skip VM_PFNMAP as default in walk_page_test(). As
> a result, walk_page_range() will return 0, assuming "not mapped" and SIGBUS
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-08-11 7:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-11 4:33 [PATCH v2] mm/memory-failure: fix infinite UCE for VM_PFNMAP'ed page Jinjiang Tu
2025-08-11 7:54 ` David Hildenbrand [this message]
2025-08-12 2:01 ` Miaohe Lin
2025-08-14 6:40 ` David Hildenbrand
2025-08-15 1:16 ` Jinjiang Tu
2025-08-14 6:05 ` jane.chu
2025-08-15 1:16 ` Jinjiang Tu
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