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Tue, 2 Apr 2024 14:19:22 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap2.dmz-prg2.suse.org with ESMTPSA id gG7HNOoTDGakZQAAn2gu4w (envelope-from ); Tue, 02 Apr 2024 14:19:22 +0000 Date: Tue, 2 Apr 2024 16:20:47 +0200 From: Oscar Salvador To: Kefeng Wang Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michal Hocko , Vlastimil Babka , Marco Elver , Andrey Konovalov , Alexander Potapenko Subject: Re: [PATCH v3 0/3] page_owner: Fix refcount imbalance Message-ID: References: <20240326063036.6242-1-osalvador@suse.de> <74b147b0-718d-4d50-be75-d6afc801cd24@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <74b147b0-718d-4d50-be75-d6afc801cd24@huawei.com> X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: E1F0980004 X-Stat-Signature: ewrm59ob9z7yydawmsbunkqct9nzycdu X-HE-Tag: 1712067564-957538 X-HE-Meta: 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 kKJ1KL6s 0Uh7PAY8I91mIagWN3J/qatkjFft3u7w4yQ9B6Msz+tV1BEPwPhXBQPVkufTy1ViHDcEFKJmbfiwFxOI/W4u+u2bu6Nx0bxH4UzTvWHIlfHTX8oI3mX5W0Wzh++t7ZKTdC8JgLTR9EXd/OtG4kZ6CGZCTXDTq4qOaMUSgjYEMzqpfT4u4VGvlG2pdkouQjbhAIbJYHICQzIuuopHL/3aVa49XutrlZ4Rd69UJOB8s2ApuKlIt3813j9OxeAU08gZZRA5ngAAbJbOYe61wZue4cr1cFFv08/TmYCKaGM+opdItaGnMQZsja+8SiWfbb+9yY3fuvlAOheKWhnFb3mjhwmqmL2U1fdIV/1y1 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: List-Subscribe: List-Unsubscribe: On Fri, Mar 29, 2024 at 12:54:30PM +0800, Kefeng Wang wrote: > I still see the following memory leak, could you check it? > > /mnt/arm64 # cat /sys//kernel/debug/kmemleak > unreferenced object 0xffff000200d91000 (size 16): > comm "kworker/4:0", pid 42, jiffies 4294892753 > hex dump (first 16 bytes): > 60 37 57 c1 00 00 ff ff 00 00 00 00 00 00 00 00 `7W............. > backtrace (crc 4458f477): > [<(____ptrval____)>] kmemleak_alloc+0x3c/0x50 > [<(____ptrval____)>] kmalloc_trace+0x20c/0x2e0 > [<(____ptrval____)>] __set_page_owner+0x1d0/0x2a0 > [<(____ptrval____)>] prep_new_page+0x108/0x138 > [<(____ptrval____)>] get_page_from_freelist+0x79c/0x16b8 > [<(____ptrval____)>] __alloc_pages+0x1bc/0x440 > [<(____ptrval____)>] new_slab+0x104/0x3c8 > [<(____ptrval____)>] ___slab_alloc+0x368/0xb20 > [<(____ptrval____)>] __slab_alloc.isra.0+0x3c/0x88 > [<(____ptrval____)>] kmalloc_trace+0x280/0x2e0 > [<(____ptrval____)>] __set_page_owner+0x1d0/0x2a0 > [<(____ptrval____)>] prep_new_page+0x108/0x138 > [<(____ptrval____)>] get_page_from_freelist+0x79c/0x16b8 > [<(____ptrval____)>] __alloc_pages+0x1bc/0x440 > [<(____ptrval____)>] new_slab+0x104/0x3c8 > [<(____ptrval____)>] ___slab_alloc+0x368/0xb20 Hi Kefeng Wang You seem to be missing [1] Could you try with that patch applied? [1] https://lore.kernel.org/linux-mm/20240315222610.6870-1-osalvador@suse.de/ Thanks -- Oscar Salvador SUSE Labs