| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <AM7P189MB100935C2EB7BC185C6567A7AE3172@AM7P189MB1009.EURP189.PROD.OUTLOOK.COM> Date: Sun, 5 Jan 2025 15:51:22 +0100 From: Maud Spierings <maud_spierings@...mail.com> To: william.qiu@...rfivetech.com Cc: hal.feng@...rfivetech.com, linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org, p.zabel@...gutronix.de, ukleinek@...nel.org Subject: Re: [PATCH v16] pwm: opencores: Add PWM driver support Hello William, I tested this patch on my deepcomputing fml13v01 with a pwm-backlight and I am getting an oops: [ 10.308290] Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000200000001 [ 10.319038] Oops [#1] [ 10.321318] Modules linked in: pwm_bl(+) sfctemp designware_i2s snd_soc_spdif_tx dm_mod configfs ip_tables x_tables vs_drm drm_dma_helper stmmac pcs_xpcs pcie_starfive phy_jh7110_usb phy_jh7110_pcie phy_jh 7110_dphy_rx phy_generic overlay jh7110_trng jh7110_tdm jh7110_pwmdac inno_hdmi drm_kms_helper i2c_hid_of i2c_hid hid_multitouch hci_uart drm drm_panel_orientation_quirks clk_starfive_jh7110_vout clk_starfive _jh7110_stg clk_starfive_jh7110_isp clk_starfive_jh7110_aon clk_starfive_jh7100_audio cdns3_starfive cdns3 cdns_usb_common roles btintel bridge stp llc bluetooth libaes ecdh_generic ecc backlight efivarfs [ 10.375483] CPU: 3 UID: 0 PID: 307 Comm: (udev-worker) Not tainted 6.13.0-rc4-00032-ga27a3464e6ab-dirty #16 [ 10.385227] Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2021.10 10/01/2021 [ 10.393576] epc : ocores_pwm_get_state+0x22/0xca [ 10.398204] ra : pwm_get_state_hw+0x10c/0x132 [ 10.402651] epc : ffffffff804f8d48 ra : ffffffff804f81f4 sp : ffffffc600f1b5c0 [ 10.409875] gp : ffffffff814f8658 tp : ffffffd6c3efe400 t0 : 0000000000000000 [ 10.417096] t1 : 0000000000000040 t2 : ffffffff814a0498 s0 : ffffffc600f1b600 [ 10.424317] s1 : ffffffd6c0b9b800 a0 : ffffffc6007b0000 a1 : ffffffd6c0b9bbb8 [ 10.431539] a2 : ffffffc600f1b690 a3 : 0000000000000000 a4 : 0000000000000000 [ 10.438760] a5 : 0000000200000001 a6 : ffffffd6c07fd918 a7 : 0000000000000000 [ 10.445982] s2 : ffffffff80e6b2c0 s3 : ffffffd6c0b9bec0 s4 : ffffffc600f1b690 [ 10.453204] s5 : ffffffd6c0b9bbb8 s6 : 0000000000000000 s7 : ffffffd6c0b9bb78 [ 10.460426] s8 : ffffffc600f1bc90 s9 : 0000000000000000 s10: ffffffc600f1bc40 [ 10.467648] s11: 0000000000000001 t3 : 0000000000000000 t4 : 0000000000000002 [ 10.474868] t5 : 0000000000000000 t6 : 0000000000000402 [ 10.480179] status: 0000000200000120 badaddr: 0000000200000001 cause: 000000000000000d [ 10.488096] [<ffffffff804f8d48>] ocores_pwm_get_state+0x22/0xca [ 10.494019] [<ffffffff804f81f4>] pwm_get_state_hw+0x10c/0x132 [ 10.499768] [<ffffffff804f8338>] pwm_request_from_chip.part.0+0x11e/0x182 [ 10.506556] [<ffffffff804f8640>] of_pwm_xlate_with_flags+0x26/0x64 [ 10.512739] [<ffffffff804f7084>] of_pwm_get+0x146/0x1ea [ 10.517967] [<ffffffff804f84e8>] pwm_get+0x14c/0x1d4 [ 10.522934] [<ffffffff804f8582>] devm_pwm_get+0x12/0x4e [ 10.528166] [<ffffffff018ab2ae>] pwm_backlight_probe+0x102/0x84a [pwm_bl] [ 10.534963] [<ffffffff805a05c4>] platform_probe+0x4e/0xb2 [ 10.540369] [<ffffffff8059e0b0>] really_probe+0x84/0x22a [ 10.545684] [<ffffffff8059e2b2>] __driver_probe_device+0x5c/0xdc [ 10.551694] [<ffffffff8059e3f4>] driver_probe_device+0x2c/0xb2 [ 10.557529] [<ffffffff8059e574>] __driver_attach+0x6c/0x11a [ 10.563104] [<ffffffff8059c1c4>] bus_for_each_dev+0x62/0xb0 [ 10.568679] [<ffffffff8059daf2>] driver_attach+0x1a/0x22 [ 10.573993] [<ffffffff8059d3e8>] bus_add_driver+0xce/0x1d6 [ 10.579481] [<ffffffff8059f114>] driver_register+0x40/0xda [ 10.584970] [<ffffffff805a034c>] __platform_driver_register+0x1c/0x24 [ 10.591415] [<ffffffff018b1020>] pwm_backlight_driver_init+0x20/0x1000 [pwm_bl] [ 10.598730] [<ffffffff8000f12c>] do_one_initcall+0x5c/0x1aa [ 10.604306] [<ffffffff8009f992>] do_init_module+0x52/0x1b2 [ 10.609796] [<ffffffff800a10f2>] load_module+0x1374/0x177e [ 10.615284] [<ffffffff800a16c0>] init_module_from_file+0x76/0xae [ 10.621292] [<ffffffff800a18e4>] __riscv_sys_finit_module+0x1b4/0x31c [ 10.627735] [<ffffffff80983cf4>] do_trap_ecall_u+0x1a8/0x1d4 [ 10.633399] [<ffffffff8098d8a2>] _new_vmalloc_restore_context_a0+0xc2/0xce [ 10.640285] Code: ec4e 0080 3983 0785 8aae 8a32 b783 0009 b503 0089 (639c) c399 [ 10.647772] ---[ end trace 0000000000000000 ]--- kind regards, Maud Spierings
Powered by blists - more mailing lists