From: Zi Yan <ziy@nvidia.com>
To: Gavin Guo <gavinguo@igalia.com>
Cc: linux-mm@kvack.org, akpm@linux-foundation.org, david@redhat.com,
willy@infradead.org, linmiaohe@huawei.com, hughd@google.com,
revest@google.com, kernel-dev@igalia.com,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v2] mm/huge_memory: fix dereferencing invalid pmd migration entry
Date: Fri, 18 Apr 2025 07:50:35 -0400 [thread overview]
Message-ID: <321CF34D-79CF-4B14-AE3D-5815B8D74E8A@nvidia.com> (raw)
In-Reply-To: <20250418085802.2973519-1-gavinguo@igalia.com>
On 18 Apr 2025, at 4:58, Gavin Guo wrote:
> When migrating a THP, concurrent access to the PMD migration entry
> during a deferred split scan can lead to a invalid address access, as
s/a/an/
> illustrated below. To prevent this page fault, it is necessary to check
s/this page fault/this invalid access/
The rest looks good to me.
Best Regards,
Yan, Zi
prev parent reply other threads:[~2025-04-18 11:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-18 8:58 Gavin Guo
2025-04-18 9:03 ` Gavin Guo
2025-04-18 11:48 ` Zi Yan
2025-04-18 10:42 ` David Hildenbrand
2025-04-18 23:53 ` Gavin Shan
2025-04-21 14:47 ` Gavin Guo
2025-04-18 11:50 ` Zi Yan [this message]
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