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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 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> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 7F89C4000E X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: ncohsbnctdispjegwphe19hrfqjzforr X-HE-Tag: 1673615321-657515 X-HE-Meta: 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 JNzewCeC T+3DhpydEw9IFPVj6u3g14iDobYg6oGgXnOaA1YaD431Ys+yC1eM5X6ZuC0w0+1J3hTHCMs7/MXO4Idt//cnnxf4KzMIZ/kHc1TaqPn/kD8lK4eSOw4aTIp4TieZrPGaUDdTwQ+N0/zv07IWY8tJIzDFZ20sNvVnhM5YyGlUxSPkiS8ZkvuYQQhdoLQ15tr6cTExL X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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