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[62.248.207.242]) by smtp.gmail.com with ESMTPSA id x27sm707098lfn.226.2021.10.11.04.23.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 11 Oct 2021 04:23:54 -0700 (PDT) To: Mike Rapoport Cc: lkml , linux-mm@kvack.org From: Vladimir Zapolskiy Subject: Panic on kmemleak scan Message-ID: <8ade5174-b143-d621-8c8e-dc6a1898c6fb@linaro.org> Date: Mon, 11 Oct 2021 14:23:31 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 6D3E0507CB15 X-Stat-Signature: t1y5oqa6fo5xpruaoeh77hnehweytwsa Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=linaro.org header.s=google header.b=lgq9UUjX; dmarc=pass (policy=none) header.from=linaro.org; spf=pass (imf01.hostedemail.com: domain of vladimir.zapolskiy@linaro.org designates 209.85.167.47 as permitted sender) smtp.mailfrom=vladimir.zapolskiy@linaro.org X-HE-Tag: 1633951436-644202 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000657, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello Mike, commit a7259df767 ("memblock: make memblock_find_in_range method private") [1] invokes a kernel panic while running kmemleak on OF platforms with nomaped regions, basically it's similar to an issue reported and fixed earlier by [2]: Unable to handle kernel paging request at virtual address ffff000021e00000 [...] scan_block+0x64/0x170 scan_gray_list+0xe8/0x17c kmemleak_scan+0x270/0x514 kmemleak_write+0x34c/0x4ac I believe it would be a trivial problem to correct for you, thank you in advance! [1] https://lore.kernel.org/all/20210816122622.30279-1-rppt@kernel.org/T/#u [2] https://lore.kernel.org/lkml/20190119132832.GA29881@MBP.local/t/#m032124f36c07 -- Best wishes, Vladimir