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[211.162.65.117]) by mx.google.com with ESMTPS id k35si666299jac.85.2019.03.29.00.44.12 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 29 Mar 2019 00:44:12 -0700 (PDT) Received-SPF: pass (google.com: domain of liang.yang@amlogic.com designates 211.162.65.117 as permitted sender) client-ip=211.162.65.117; Authentication-Results: mx.google.com; spf=pass (google.com: domain of liang.yang@amlogic.com designates 211.162.65.117 as permitted sender) smtp.mailfrom=Liang.Yang@amlogic.com Received: from [10.28.18.125] (10.28.18.125) by mail-sz.amlogic.com (10.28.11.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1591.10; Fri, 29 Mar 2019 15:44:30 +0800 Subject: Re: 32-bit Amlogic (ARM) SoC: kernel BUG in kfree() To: Martin Blumenstingl CC: Matthew Wilcox , , , , , , , , , References: <20190321214401.GC19508@bombadil.infradead.org> <5cad2529-8776-687e-58d0-4fb9e2ec59b1@amlogic.com> <32799846-b8f0-758f-32eb-a9ce435e0b79@amlogic.com> From: Liang Yang Message-ID: <79b81748-8508-414f-c08a-c99cb4ae4b2a@amlogic.com> Date: Fri, 29 Mar 2019 15:44:30 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Thunderbird/60.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.28.18.125] X-ClientProxiedBy: mail-sz.amlogic.com (10.28.11.5) To mail-sz.amlogic.com (10.28.11.5) 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: Hi Martin, On 2019/3/29 2:03, Martin Blumenstingl wrote: > Hi Liang, [......] >> I don't think it is caused by a different NAND type, but i have followed >> the some test on my GXL platform. we can see the result from the >> attachment. By the way, i don't find any information about this on meson >> NFC datasheet, so i will ask our VLSI. >> Martin, May you reproduce it with the new patch on meson8b platform ? I >> need a more clear and easier compared log like gxl.txt. Thanks. > your gxl.txt is great, finally I can also compare my own results with > something that works for you! > in my results (see attachment) the "DATA_IN [256 B, force 8-bit]" > instructions result in a different info buffer output. > does this make any sense to you? > I have asked our VLSI designer for explanation or simulation result by an e-mail. Thanks.