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[2003:cb:c704:ec00:869d:7200:eb03:db01]) by smtp.gmail.com with ESMTPSA id n10-20020a5d6b8a000000b002425787c5easm18873317wrx.96.2023.01.13.05.08.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Jan 2023 05:08:37 -0800 (PST) Message-ID: <8bbc5629-b89a-83f3-41a4-0083ea2468c1@redhat.com> Date: Fri, 13 Jan 2023 14:08:36 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH -next 5/7] mm: memory: convert wp_page_copy() to use folios Content-Language: en-US To: Marek Szyprowski , Kefeng Wang , akpm@linux-foundation.org, willy@infradead.org, linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org References: <20230112083006.163393-1-wangkefeng.wang@huawei.com> <20230112083006.163393-6-wangkefeng.wang@huawei.com> <32fefce6-e25d-106d-12ec-8fc612843cfb@samsung.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <32fefce6-e25d-106d-12ec-8fc612843cfb@samsung.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13.01.23 14:01, Marek Szyprowski wrote: > Hi > > On 12.01.2023 09:30, Kefeng Wang wrote: >> The old_page/new_page are converted to old_folio/new_folio in >> wp_page_copy(), then replaced related page functions to folio >> functions. >> >> Signed-off-by: Kefeng Wang > > This patch, merged into today's linux-next as commit 9ebae00c8e30 ("mm: > memory: convert wp_page_copy() to use folios"), causes serious stability > issues on my ARM based test boards. Here is the example of such crash: syzbot is also not happy: https://lkml.kernel.org/r/000000000000807c7805f2205df1@google.com -- Thanks, David / dhildenb