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([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-30e3345ecbesm1426821a91.28.2025.05.14.05.46.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 May 2025 05:46:17 -0700 (PDT) Sender: Guenter Roeck Message-ID: <4ce8c308-15e5-4489-a890-612c4e97c98d@roeck-us.net> Date: Wed, 14 May 2025 05:46:16 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: w83627hf crash when loaded on ARM To: Corentin Labbe , jdelvare@suse.com, linux-hwmon@vger.kernel.org Cc: linux-kernel@vger.kernel.org References: Content-Language: en-US From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 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Content-Transfer-Encoding: 7bit On 5/14/25 01:51, Corentin Labbe wrote: > Hello > > On my sun8i-a33-olinuxino, when w83627hf is modprobed, it crashes: > [ 177.854109] 8<--- cut here --- > [ 177.854166] Unable to handle kernel paging request at virtual address fee0002e when write > [ 177.854189] [fee0002e] *pgd=00000000 > [ 177.854227] Internal error: Oops: 805 [#1] SMP ARM > [ 177.859231] Modules linked in: w83627hf(+) hwmon_vid dm_crypt twofish_generic twofish_common serpent_generic sha3_generic jitterentropy_rng drbg ccm algif_aead cmac cfg80211 bluetooth ecdh_generic ecc ctr axp20x_usb_power sun4i_backend axp20x_pek sun4i_frontend des_generic lima drm_shmem_helper gpu_sched drm_dma_helper aes_arm_bs sun6i_drc aes_arm snd_soc_simple_card snd_soc_simple_card_utils sunxi snd_soc_core sun4i_gpadc_iio musb_hdrc sun4i_ss libdes ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore iio_hwmon > [ 177.908280] CPU: 0 UID: 0 PID: 7279 Comm: modprobe Not tainted 6.15.0-rc6-next-20250513-00001-g1d1183a441d8 #64 NONE > [ 177.918890] Hardware name: Allwinner sun8i Family > [ 177.923593] PC is at w83627hf_find+0x5c/0x234 [w83627hf] > [ 177.928953] LR is at w83627hf_find+0x4c/0x234 [w83627hf] > [ 177.934280] pc : [] lr : [] psr: 60000013 > [ 177.940544] sp : f0e61df0 ip : 00000000 fp : c2236f00 > [ 177.945766] r10: c918bb90 r9 : 00000000 r8 : 00000000 > [ 177.950989] r7 : c2236f00 r6 : f0e61e0e r5 : ffffff87 r4 : f0e61e10 > [ 177.957513] r3 : fee0002e r2 : 00000000 r1 : 00000000 r0 : c8dd3640 > [ 177.964038] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > [ 177.971172] Control: 10c5387d Table: 478dc06a DAC: 00000051 > [ 177.976914] Register r0 information: slab kmalloc-64 start c8dd3640 pointer offset 0 size 64 > [ 177.985375] Register r1 information: NULL pointer > [ 177.990086] Register r2 information: NULL pointer > [ 177.994791] Register r3 information: 0-page vmalloc region starting at 0xfee00000 allocated at pci_reserve_io+0x0/0x30 > [ 178.005498] Register r4 information: 2-page vmalloc region starting at 0xf0e60000 allocated at kernel_clone+0xa4/0x384 > [ 178.016203] Register r5 information: non-paged memory > [ 178.021257] Register r6 information: 2-page vmalloc region starting at 0xf0e60000 allocated at kernel_clone+0xa4/0x384 > [ 178.031955] Register r7 information: slab filp start c2236f00 pointer offset 0 size 136 > [ 178.039976] Register r8 information: NULL pointer > [ 178.044681] Register r9 information: NULL pointer > [ 178.049386] Register r10 information: slab inode_cache start c918bb90 pointer offset 0 size 384 > [ 178.058099] Register r11 information: slab filp start c2236f00 pointer offset 0 size 136 > [ 178.066203] Register r12 information: NULL pointer > [ 178.070996] Process modprobe (pid: 7279, stack limit = 0x80574f80) > [ 178.077179] Stack: (0xf0e61df0 to 0xf0e62000) > [ 178.081539] 1de0: 00400000 00000000 bf2ce234 c1f6fe00 > [ 178.089715] 1e00: c794abc0 bf2ce26c 00000000 00000000 00000000 0000002e 00000000 00000000 > [ 178.097888] 1e20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 14ef0d3e > [ 178.106062] 1e40: bf2ce234 bf2ce234 c1f6fe00 c031ca28 00000000 00000000 00000000 00000000 > [ 178.114237] 1e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 178.122412] 1e80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 14ef0d3e > [ 178.130586] 1ea0: bf2c9940 c8dd3f80 000d6b18 c2236f00 c1fa6350 c03f2794 c2236f00 c1fa6350 > [ 178.138760] 1ec0: 00000000 c2236f00 000d6b18 c03f4860 f0e61ee4 7fffffff 00000000 00000002 > [ 178.146935] 1ee0: 00000000 f0e73000 f0e76ca4 f0e77768 f0e73000 00009230 f0e7bb50 f0e7b9a4 > [ 178.155109] 1f00: f0e78c88 00000c00 00000f90 00002560 0000126d 00000000 00002550 00000029 > [ 178.163283] 1f20: 0000002a 00000027 00000000 00000017 00000000 00000000 00000000 14ef0d3e > [ 178.171457] 1f40: 000000d0 c1fa5f40 00000001 c03f4bc0 c1fa6290 000d6b18 c918bb90 00000000 > [ 178.179632] 1f60: c1fa6290 00000000 00000000 f0e61f6c f0e61f6c fffffffc 000a0000 14ef0d3e > [ 178.187807] 1f80: 00000000 000d6b18 000d66d0 000d6b18 0000017b c0300324 c794abc0 0000017b > [ 178.195981] 1fa0: 000d4c94 c03000c0 000d6b18 000d66d0 00000003 000d6b18 00000000 000d6af0 > [ 178.204155] 1fc0: 000d6b18 000d66d0 000d6b18 0000017b 000d6af0 00000000 00000001 000d4c94 > [ 178.212330] 1fe0: becffaa0 becffa90 0002ef30 b6ee6300 80000010 00000003 00000000 00000000 > [ 178.220500] Call trace: > [ 178.220539] w83627hf_find [w83627hf] from sensors_w83627hf_init+0x38/0xdcc [w83627hf] > [ 178.231022] sensors_w83627hf_init [w83627hf] from do_one_initcall+0x58/0x200 > [ 178.238190] do_one_initcall from do_init_module+0x54/0x200 > [ 178.243783] do_init_module from init_module_from_file+0x94/0xd0 > [ 178.249805] init_module_from_file from sys_finit_module+0x1a4/0x300 > [ 178.256174] sys_finit_module from ret_fast_syscall+0x0/0x54 > [ 178.261844] Exception stack(0xf0e61fa8 to 0xf0e61ff0) > [ 178.266897] 1fa0: 000d6b18 000d66d0 00000003 000d6b18 00000000 000d6af0 > [ 178.275072] 1fc0: 000d6b18 000d66d0 000d6b18 0000017b 000d6af0 00000000 00000001 000d4c94 > [ 178.283243] 1fe0: becffaa0 becffa90 0002ef30 b6ee6300 > [ 178.288299] Code: e5943004 e3e05078 e7f33053 e2433612 (e5c35000) > [ 178.294391] ---[ end trace 0000000000000000 ]--- > [ 178.299008] note: modprobe[7279] exited with irqs disabled > > Regards > That probably happens with lots of drivers which access the 0x2e / 0x4e I/O ports blindly assuming they are accessible. You'll have to black-list the driver. Or, rather, its build should not even be enabled in the first place. Guenter