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7NpJlFchpaErV6WdFrXQjDAd9YwaEHucfS7SAhxIqdIqzV5vNFrMjwhB1N8MfdUJDpgyX7Zu k/Phd5aoZXNwsCRqaD2OwFZXr81zSXwE2UdPmIfTYTjeVsOAI7GZ7akCsRPK64ni0XfoXue2 XUSrUUTRimTkuMHrTYaHY3544a+GduQQLLA+avseLmjvKHxsU4zna0p0Yb4czwoJj+wSkVGQ NMDbxcY26CMPK204jhRm9RG687qq6691hbiuAtWABeAsl1AS+mdS7aP/4uOM4kFCvXYgIHxP /BoVz9CZTMEVAZVzbRKyYCLUf1wLhcHzugTiONz9fWMBLLskKvq7m1tlr61mNgY9nVwwClMU uE7i1H9r/2/UXLd+pY82zcXhFrfmKuCDmOkB5xPsOMVQJH8I0/lbqfLAqfsxSb/X1VKaP243 jzi+DzD9cvj2K6eD5j5kcKJJQactXqfJvF1Eb+OnxlB1BCLE8D1rNkPO5O742Mq3MgDmq19l +abzEL6QDAAxn9md8KwrA3RtucNh87cHlDXfUBKa7SRvBjTczDg+HEPNk2u3hrz1j3l2rliQ y1UfYx7Vk/TrdwUIJgKS8QAr8Lw9WuvY2hSqL9vEjx8VAkPWNWPwrQ== Message-ID: <34c9fc56-ca19-cf59-af71-4273f91338b9@gmail.com> Date: Wed, 20 May 2020 17:21:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <8d66199a-84cb-5080-cd24-f746d1db5c5a@collabora.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200520_082123_875673_4C6E9818 X-CRM114-Status: GOOD ( 20.22 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: renze@rnplus.nl, michael.kao@mediatek.com, "drinkcat@chromium.org" , roger.lu@mediatek.com, Hsin-Yi Wang Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 20/05/2020 17:09, Enric Balletbo i Serra wrote: > Dear all, > > I've been testing the Acer Chromebook R 13 (elm - MT8173) for a while. Today I > enabled the Mediatek thermal driver (CONFIG_MTK_THERMAL=y) and I started to get > that hang [1] > Did you try to bisect to find out what broke it? Regards, Matthias > The stacktrace points point to this function: > > static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) > > More precisely to this call: > > raw = readl(mt->thermal_base + > conf->msr[conf->bank_data[bank->id].sensors[i]]); > > this call, is in a loop and ends trying to access to conf->msr[4] > (conf->msr[MT8173_TSABB]) which doesn't exist as per the following struct > > static const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = { > TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 > }; > > I think the datasheet will help here to clarify what is happening but is not > public, so I can really check. Anyway seems that or the mt8173_msr struct is > wrong or the mt8173_bank_data is wrong or there is something else. > > Could anyone with the information or with this hardwware knowledge take a look, > please. > > Thanks, > Enric > > > [1] > [ 2.222488] Unable to handle kernel paging request at virtual address > ffff8000125f5001 > [ 2.230421] Mem abort info: > [ 2.233207] ESR = 0x96000021 > [ 2.236261] EC = 0x25: DABT (current EL), IL = 32 bits > [ 2.241571] SET = 0, FnV = 0 > [ 2.244623] EA = 0, S1PTW = 0 > [ 2.247762] Data abort info: > [ 2.250640] ISV = 0, ISS = 0x00000021 > [ 2.254473] CM = 0, WnR = 0 > [ 2.257544] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041850000 > [ 2.264251] [ffff8000125f5001] pgd=000000013ffff003, pud=000000013fffe003, > pmd=000000013fff9003, pte=006800001100b707 > [ 2.274867] Internal error: Oops: 96000021 [#1] PREEMPT SMP > [ 2.280432] Modules linked in: > [ 2.283483] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc6+ #162 > [ 2.289914] Hardware name: Google Elm (DT) > [ 2.294003] pstate: 20000005 (nzCv daif -PAN -UAO) > [ 2.298792] pc : mtk_read_temp+0xb8/0x1c8 > [ 2.302793] lr : mtk_read_temp+0x7c/0x1c8 > [ 2.306794] sp : ffff80001003b930 > [ 2.310100] x29: ffff80001003b930 x28: 0000000000000000 > [ 2.315404] x27: 0000000000000002 x26: ffff0000f9550b10 > [ 2.320709] x25: ffff0000f9550a80 x24: 0000000000000090 > [ 2.326014] x23: ffff80001003ba24 x22: 00000000610344c0 > [ 2.331318] x21: 0000000000002710 x20: 00000000000001f4 > [ 2.336622] x19: 0000000000030d40 x18: ffff800011742ec0 > [ 2.341926] x17: 0000000000000001 x16: 0000000000000001 > [ 2.347230] x15: ffffffffffffffff x14: ffffff0000000000 > [ 2.352535] x13: ffffffffffffffff x12: 0000000000000028 > [ 2.357839] x11: 0000000000000003 x10: ffff800011295ec8 > [ 2.363143] x9 : 000000000000291b x8 : 0000000000000002 > [ 2.368447] x7 : 00000000000000a8 x6 : 0000000000000004 > [ 2.373751] x5 : 0000000000000000 x4 : ffff800011295cb0 > [ 2.379055] x3 : 0000000000000002 x2 : ffff8000125f5001 > [ 2.384359] x1 : 0000000000000001 x0 : ffff0000f9550a80 > [ 2.389665] Call trace: > [ 2.392105] mtk_read_temp+0xb8/0x1c8 > [ 2.395760] of_thermal_get_temp+0x2c/0x40 > [ 2.399849] thermal_zone_get_temp+0x78/0x160 > [ 2.404198] thermal_zone_device_update.part.0+0x3c/0x1f8 > [ 2.409589] thermal_zone_device_update+0x34/0x48 > [ 2.414286] of_thermal_set_mode+0x58/0x88 > [ 2.418375] thermal_zone_of_sensor_register+0x1a8/0x1d8 > [ 2.423679] devm_thermal_zone_of_sensor_register+0x64/0xb0 > [ 2.429242] mtk_thermal_probe+0x690/0x7d0 > [ 2.433333] platform_drv_probe+0x5c/0xb0 > [ 2.437335] really_probe+0xe4/0x448 > [ 2.440901] driver_probe_device+0xe8/0x140 > [ 2.445077] device_driver_attach+0x7c/0x88 > [ 2.449252] __driver_attach+0xac/0x178 > [ 2.453082] bus_for_each_dev+0x78/0xc8 > [ 2.456909] driver_attach+0x2c/0x38 > [ 2.460476] bus_add_driver+0x14c/0x230 > [ 2.464304] driver_register+0x6c/0x128 > [ 2.468131] __platform_driver_register+0x50/0x60 > [ 2.472831] mtk_thermal_driver_init+0x24/0x30 > [ 2.477268] do_one_initcall+0x50/0x298 > [ 2.481098] kernel_init_freeable+0x1ec/0x264 > [ 2.485450] kernel_init+0x1c/0x110 > [ 2.488931] ret_from_fork+0x10/0x1c > [ 2.492502] Code: f9401081 f9400402 b8a67821 8b010042 (b9400042) > [ 2.498599] ---[ end trace e43e3105ed27dc99 ]--- > [ 2.503367] Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000b > [ 2.511020] SMP: stopping secondary CPUs > [ 2.514941] Kernel Offset: disabled > [ 2.518421] CPU features: 0x090002,25006005 > [ 2.522595] Memory Limit: none > [ 2.525644] ---[ end Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000b ]--- > _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek