From: Oscar Salvador <osalvador@suse.de>
To: Jane Chu <jane.chu@oracle.com>
Cc: linmiaohe@huawei.com, nao.horiguchi@gmail.com,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 5/5] mm/memory-failure: send SIGBUS in the event of thp split fail
Date: Wed, 22 May 2024 22:57:08 +0200 [thread overview]
Message-ID: <Zk5cJJTFek9yzDh5@localhost.localdomain> (raw)
In-Reply-To: <20240521235429.2368017-6-jane.chu@oracle.com>
On Tue, May 21, 2024 at 05:54:29PM -0600, Jane Chu wrote:
> While handling hwpoison in a THP page, it is possible that
> try_to_split_thp_page() fails. For example, when the THP page has
> been RDMA pinned. At this point, the kernel cannot isolate the
> poisoned THP page, all it could do is to send a SIGBUS to the user
> process with meaningful payload to give user-level recovery a chance.
>
> Signed-off-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
--
Oscar Salvador
SUSE Labs
next prev parent reply other threads:[~2024-05-22 20:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-21 23:54 [PATCH v3 0/5] Enhance soft hwpoison handling and injection Jane Chu
2024-05-21 23:54 ` [PATCH v3 1/5] mm/memory-failure: try to send SIGBUS even if unmap failed Jane Chu
2024-05-21 23:54 ` [PATCH v3 2/5] mm/madvise: Add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON) Jane Chu
2024-05-23 1:54 ` Miaohe Lin
2024-05-21 23:54 ` [PATCH v3 3/5] mm/memory-failure: improve memory failure action_result messages Jane Chu
2024-05-22 20:37 ` Oscar Salvador
2024-05-23 17:38 ` Jane Chu
2024-05-23 2:31 ` Miaohe Lin
2024-05-23 19:58 ` Jane Chu
2024-05-21 23:54 ` [PATCH v3 4/5] mm/memory-failure: move hwpoison_filter() higher up Jane Chu
2024-05-22 20:50 ` Oscar Salvador
2024-05-23 2:37 ` Miaohe Lin
2024-05-21 23:54 ` [PATCH v3 5/5] mm/memory-failure: send SIGBUS in the event of thp split fail Jane Chu
2024-05-22 20:57 ` Oscar Salvador [this message]
2024-05-23 3:02 ` Miaohe Lin
2024-05-23 20:01 ` Jane Chu
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