From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpo52.interia.pl (smtpo52.interia.pl [217.74.67.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C0B614A93 for ; Fri, 22 Mar 2024 08:09:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.74.67.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711094991; cv=none; b=bhMKkpAFp3fIxVIZhMZHR7FHb6GXanJUsQ9htAn8bdP3I7j8vA8/EhaFh/mg91AlnjkI246HLpTw1gF3crMmsKJ9M5eoQK4FpSEnXam1rfH98yz3HjLnXwOvPZNDoInt/3hUPuLbuZ/HkSNItnyEV8J5aepRBfa5EFF5Pfl4IxY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711094991; c=relaxed/simple; bh=831a/4TnESFp0tdtIEQSOuV7B6NQOLjtRjFdT9lLK2Y=; h=Date:From:Subject:To:Cc:Message-Id:MIME-Version:Content-Type; b=I6zKZmlwm1sLjWJJfeRiKt44+4odE3Od7X2QtKy52LyEVZ5CQffY6QYchiRIVIqrcys/grhFsym8UM5KGJcVDf6t0Y0jiKNwmgwDxMye8sXAyfcyCu9WX349+YfPipxnbDFP/R5MIMXjL7r20jbD5o87qyXB9fbncrp9RQcUhhw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=poczta.fm; spf=pass smtp.mailfrom=poczta.fm; dkim=pass (1024-bit key) header.d=poczta.fm header.i=@poczta.fm header.b=RraFUfUm; arc=none smtp.client-ip=217.74.67.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=poczta.fm Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=poczta.fm Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=poczta.fm header.i=@poczta.fm header.b="RraFUfUm" Date: Fri, 22 Mar 2024 09:06:57 +0100 From: Robert <777777@poczta.fm> Subject: [BUG] mtk-t7xx driver on aarch64/cortex-a53 To: netdev@vger.kernel.org Cc: chandrashekar.devegowda@intel.com, linuxwwan@intel.com, chiranjeevi.rapolu@linux.intel.com, haijun.liu@mediatek.com, m.chetan.kumar@linux.intel.com, ricardo.martinez@linux.intel.com, loic.poulain@linaro.org, ryazanov.s.a@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com X-Mailer: interia.pl/pf09 Message-Id: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=poczta.fm; s=dk; t=1711094835; bh=Z7wzbKyY90jdxHcCuj4Y2w4nDmk4p2ZyNNOaAt8j1N4=; h=Date:From:Subject:To:Message-Id:MIME-Version:Content-Type; b=RraFUfUmeho3tXwFtQd6jOS9hSzMT8yQUq7YgzZoR22Enxv7r9TFK+8wYzau17qNJ 1R6KrqVtlwYEuYzPcCjJENkm0ui1np1RqwG95ke4jxr9FwaC6HNUUe2aSouAnuA6GN pOABEDVqZ/j7FLyPUjiIElJX5+uUJSHw5zhwZPME= Hi We are facing possible bug in the driver mtk-t7xx under OpenWrt linux 6.1/6.6. >From first glance it looks like the driver is accessing an address in the PCIe MMIO range in 32-bit alignment (ffffffc084a1d004) but likely the SoC only supports 64-bit aligned (so only addresses ending on 0 or 8 will work) access there, hence the [ 294.051349] FSC = 0x21: alignment fault. [CUT] ... [ 12.285356] mtk_t7xx 0003:01:00.0: assign IRQ: got 113 [ 12.290512] mtk_t7xx 0003:01:00.0: enabling device (0000 -> 0002) [ 12.296612] mtk_t7xx 0003:01:00.0: enabling bus mastering [ 12.303087] (unnamed net_device) (dummy): netif_napi_add_weight() called with weight 128 [ 12.312160] mtk-pcie-gen3 11280000.pcie: msi#0x1 address_hi 0x0 address_lo 0x11280c00 data 1 [ 12.320666] mtk-pcie-gen3 11280000.pcie: msi#0x2 address_hi 0x0 address_lo 0x11280c00 data 2 [ 12.329153] mtk-pcie-gen3 11280000.pcie: msi#0x3 address_hi 0x0 address_lo 0x11280c00 data 3 [ 12.331706] Unable to handle kernel paging request at virtual address ffffffc083a1d004 [ 12.345488] Mem abort info: [ 12.345518] mtk-pcie-gen3 11280000.pcie: msi#0x4 address_hi 0x0 address_lo 0x11280c00 data 4 [ 12.348269] ESR = 0x0000000096000061 [ 12.356716] mtk-pcie-gen3 11280000.pcie: msi#0x5 address_hi 0x0 address_lo 0x11280c00 data 5 [ 12.360421] EC = 0x25: DABT (current EL), IL = 32 bits [ 12.368862] mtk-pcie-gen3 11280000.pcie: msi#0x6 address_hi 0x0 address_lo 0x11280c00 data 6 [ 12.374133] SET = 0, FnV = 0 [ 12.374135] EA = 0, S1PTW = 0 [ 12.382574] mtk-pcie-gen3 11280000.pcie: msi#0x7 address_hi 0x0 address_lo 0x11280c00 data 7 [ 12.385593] FSC = 0x21: alignment fault [ 12.388751] mtk-pcie-gen3 11280000.pcie: msi#0x8 address_hi 0x0 address_lo 0x11280c00 data 8 [ 12.397137] Data abort info: [ 12.397138] ISV = 0, ISS = 0x00000061, ISS2 = 0x00000000 [ 12.397140] CM = 0, WnR = 1, TnD = 0, TagAccess = 0 [ 12.422958] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 12.428261] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000046ad6000 [ 12.434950] [ffffffc083a1d004] pgd=100000013ffff003, p4d=100000013ffff003, pud=100000013ffff003, pmd=0068000020a00711 [ 12.445552] Internal error: Oops: 0000000096000061 [#1] SMP [ 12.451113] Modules linked in: mtk_t7xx mt7996e(O) mt792x_usb(O) mt792x_lib(O) mt7915e(O) mt76_usb(O) mt76_sdio(O) mt76_connac_lib(O) mt76(O) mac80211(O) iwlwifi(O) huawei_cdc_ncm cfg80211(O) cdc_ncm cdc_ether wwan usbserial usbnet slhc sfp rtc_pcf8563 nfnetlink nf_reject_ipv6 nf_reject_ipv4 nf_log_syslog nf_defrag_ipv6 nf_defrag_ipv4 mt6577_auxadc mdio_i2c libcrc32c compat(O) cdc_wdm cdc_acm at24 crypto_safexcel pwm_fan i2c_gpio i2c_smbus industrialio i2c_algo_bit i2c_mux_reg i2c_mux_pca954x i2c_mux_pca9541 i2c_mux_gpio i2c_mux dummy oid_registry tun sha512_arm64 sha1_ce sha1_generic seqiv md5 geniv des_generic libdes cbc authencesn authenc leds_gpio xhci_plat_hcd xhci_pci xhci_mtk_hcd xhci_hcd nvme nvme_core gpio_button_hotplug(O) dm_mirror dm_region_hash dm_log dm_crypt dm_mod dax usbcore usb_common ptp aquantia pps_core mii tpm encrypted_keys trusted [ 12.526834] CPU: 2 PID: 1526 Comm: kworker/u9:0 Tainted: G O 6.6.22 #0 [ 12.534740] Hardware name: Bananapi BPI-R4 (DT) [ 12.539259] Workqueue: md_hk_wq t7xx_fsm_uninit [mtk_t7xx] [ 12.542217] sfp sfp2: module XICOM XC-SFP+-SR rev A sn C202307141626 dc 230714 [ 12.544746] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 12.554144] mtk_soc_eth 15100000.ethernet eth1: switched to inband/10gbase-r link mode [ 12.561064] pc : t7xx_cldma_hw_set_start_addr+0x1c/0x3c [mtk_t7xx] [ 12.575139] lr : t7xx_cldma_start+0xac/0x13c [mtk_t7xx] [ 12.580359] sp : ffffffc0813dbd30 [ 12.583661] x29: ffffffc0813dbd30 x28: 0000000000000000 x27: 0000000000000000 [ 12.590786] x26: 0000000000000000 x25: ffffff80c6888140 x24: ffffff80c11f7e05 [ 12.591893] sfp sfp1: module XICOM XC-SFP+-LR rev A sn C202307141707 dc 230714 [ 12.593855] hwmon hwmon2: temp1_input not attached to any thermal zone [ 12.597909] x23: 0000000000000000 x22: ffffff80c0fdb9b8 [ 12.607297] mtk_soc_eth 15100000.ethernet eth2: switched to inband/10gbase-r link mode [ 12.613792] x21: ffffff80c0fdb128 [ 12.613794] x20: 0000000000000001 x19: ffffff80c0fdb080 x18: 0000000000000014 [ 12.631986] hwmon hwmon3: temp1_input not attached to any thermal zone [ 12.637419] x17: 00000000752a0f20 x16: 00000000468ff952 x15: 00000000246d1885 [ 12.651056] x14: 00000000b48c7dff x13: 000000001b6aa29e x12: 0000000000000001 [ 12.658180] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 12.665304] x8 : ffffff80c90fdfb4 x7 : ffffff80c0fdb818 x6 : 0000000000000018 [ 12.672428] x5 : 0000000000000870 x4 : 0000000000000000 x3 : 0000000000000000 [ 12.679553] x2 : 00000001090f0000 x1 : ffffffc083a1d004 x0 : ffffffc083a1d004 [ 12.686678] Call trace: [ 12.689114] t7xx_cldma_hw_set_start_addr+0x1c/0x3c [mtk_t7xx] [ 12.694942] t7xx_fsm_uninit+0x578/0x5ec [mtk_t7xx] [ 12.699814] process_one_work+0x154/0x2a0 [ 12.703818] worker_thread+0x2ac/0x488 [ 12.707558] kthread+0xe0/0xec [ 12.710603] ret_from_fork+0x10/0x20 [ 12.714172] Code: f9400800 91001000 8b214001 d50332bf (f9000022) [ 12.720253] ---[ end trace 0000000000000000 ]--- [ 12.731558] pstore: backend (ramoops) writing error (-28) [ 12.736948] Kernel panic - not syncing: Oops: Fatal exception [ 12.742680] SMP: stopping secondary CPUs [ 12.746593] Kernel Offset: disabled [ 12.750069] CPU features: 0x0,00000000,20000000,1000400b [ 12.755370] Memory Limit: none [ 12.765071] Rebooting in 1 seconds.. PANIC at PC : 0x000000004300490c Kindly Robert