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Josua Mayer" To: matrandg@cisco.com, mchehab@kernel.org Cc: linux-media@vger.kernel.org References: <427466e4-1b6f-f7c3-3d5e-89c7a7f2ec79@jm0.eu> <19a143de-818d-4c21-94c1-f4ebf57e3802@jm0.eu> Subject: Re: [BUG] tc358743: division by zero Message-ID: <35096323-4f28-6c04-2308-de9895c2751d@jm0.eu> Date: Wed, 9 Jun 2021 19:08:12 +0200 MIME-Version: 1.0 In-Reply-To: <19a143de-818d-4c21-94c1-f4ebf57e3802@jm0.eu> Content-Type: multipart/mixed; boundary="------------C8E9470D09B2A4C62CE82231" Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This is a multi-part message in MIME format. --------------C8E9470D09B2A4C62CE82231 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hello again, I added debug prints to tc358743_probe_of and tc358743_num_csi_lanes_needed, tracking the values of pll_prd and pll_fbd. I believe the bug is caused by probe returning early when it encounters an unsupported datarate of more than 1gbps per lane, which skips the code that would initialize pll_fbd. Hence later in tc358743_num_csi_lanes_needed, pll_fbd is zero - leading to divide by zero. The interesting parts of dmesg leading to this conclusion: [ 16.393072] imx6_mipi_csi2: module is from the staging directory, the quality is unknown, you have been warned. [ 16.891557] tc358743 0-000f: initialized pll_prd = 4 [ 16.896618] tc358743 0-000f: unsupported bps per lane: 1188000000 bps # pll_prd has been initialized, but pll_fbd has not [ 17.203559] tc358743 0-000f: pll_prd = 4 [ 17.207588] tc358743 0-000f: pll_fbd = 0 # using pll_fbd value 0 [ 17.211539] Division by zero in kernel. [ 17.215415] CPU: 1 PID: 208 Comm: systemd-udevd Tainted: G WC E 5.10.0-7-armmp #1 Debian 5.10.40-2 [ 17.225418] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 17.231947] Backtrace: [ 17.234417] [] (dump_backtrace) from [] (show_stack+0x20/0x24) [ 17.247662] [] (show_stack) from [] (dump_stack+0xc8/0xdc) [ 17.254892] [] (dump_stack) from [] (__div0+0x24/0x28) [ 17.267442] [] (__div0) from [] (Ldiv0+0x8/0x10) [ 17.273844] [] (tc358743_num_csi_lanes_needed [tc358743]) from [] (tc358743_set_csi+0x1c/0x2f8 [tc358743]) [ 17.290929] [] (tc358743_set_csi [tc358743]) from [] (tc358743_s_dv_timings+0x104/0x1a8 [tc358743]) [ 17.307430] [] (tc358743_s_dv_timings [tc358743]) from [] (tc358743_probe+0x93c/0xfec [tc358743]) [ 17.323757] [] (tc358743_probe [tc358743]) from [] (i2c_device_probe+0x100/0x2e0) I don't really know where this condition should be checked for, or avoided. Hopefully though this gives somebody else enough information to find a solution. Yours sincerely Josua Mayer Am 09.06.21 um 17:08 schrieb Ing. Josua Mayer: > and I forgot about the promised dts :( .. I am realyl sorry for spamming > your mailbox like this ... > > Am 09.06.21 um 17:07 schrieb Ing. Josua Mayer: >> Dear Maintainers, >> >> During my attempts at capturing HDMI via the csi-2 port on i.MX6 >> HummingBoard, I triggered a division by zero in >> tc358743_num_csi_lanes_needed! >> I am running Debian testing, with linux 5.10.40 - built from debian >> sources with the tc358743 driver enabled: >> Linux sr-imx6 5.10.0-7-armmp #1 SMP Debian 5.10.40-2 (2021-05-29) >> armv7l GNU/Linux >> >> The crash is triggered from userspace as I execute: >> media-ctl -l "'tc358743 0-000f':0->'imx6-mipi-csi2':0[1]" >> media-ctl -l "'imx6-mipi-csi2':1->'ipu1_csi0_mux':0[1]" >> media-ctl -l "'ipu1_csi0_mux':2->'ipu1_csi0':0[1]" >> media-ctl -l "'ipu1_csi0':2->'ipu1_csi0 capture':0[1]" >> v4l2-ctl -d /dev/v4l-subdev7 --set-edid=file=tc358743-edid.hex && sleep 1 >> v4l2-ctl -d /dev/v4l-subdev7 --set-dv-bt-timings query && sleep 1 >> >> [   60.985439] Division by zero in kernel. >> [   60.989333] CPU: 1 PID: 395 Comm: v4l2-ctl Tainted: G        WC  E >>   5.10.0-7-armmp #1 Debian 5.10.40-2 >> [   60.998904] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) >> [   61.005438] Backtrace: >> [   61.007911] [] (dump_backtrace) from [] >> (show_stack+0x20/0x24) >> [   61.015489]  r7:00000018 r6:600b0013 r5:00000000 r4:c14cdc90 >> [   61.021162] [] (show_stack) from [] >> (dump_stack+0xc8/0xdc) >> [   61.028394] [] (dump_stack) from [] >> (__div0+0x24/0x28) >> [   61.035276]  r7:00000018 r6:034bc000 r5:c1f67890 r4:4f1a0000 >> [   61.040951] [] (__div0) from [] (Ldiv0+0x8/0x10) >> [   61.047336] [] (tc358743_num_csi_lanes_needed [tc358743]) >> from [] (tc358743_set_csi+0x1c/0x3f0 [tc358743]) >> [   61.058734]  r9:00000000 r8:c2b8b400 r7:c1f67a59 r6:bf419380 >> r5:c1f679e8 r4:c1f67890 >> [   61.066495] [] (tc358743_set_csi [tc358743]) from >> [] (tc358743_s_dv_timings+0x104/0x1a8 [tc358743]) >> [   61.077283]  r7:c1f67a59 r6:bf419380 r5:c1f679e8 r4:c1f67890 >> [   61.082961] [] (tc358743_s_dv_timings [tc358743]) from >> [] (subdev_do_ioctl+0x430/0xd0c) >> [   61.092708]  r7:c1f67890 r6:c2ea0780 r5:c2d91c00 r4:c0845657 >> [   61.098376] [] (subdev_do_ioctl) from [] >> (subdev_do_ioctl_lock+0x84/0xb4) >> [   61.106909]  r10:c2d91c00 r9:bea08dec r8:c0845657 r7:00000000 >> r6:c2d91c00 r5:c2ea0780 >> [   61.114741]  r4:c2e35000 >> [   61.117294] [] (subdev_do_ioctl_lock) from [] >> (video_usercopy+0x190/0x674) >> [   61.125913]  r9:bea08dec r8:c2d91c00 r7:bea08dec r6:c0845657 >> r5:00000000 r4:c0845657 >> [   61.133668] [] (video_usercopy) from [] >> (subdev_ioctl+0x20/0x24) >> [   61.141419]  r10:c30372a8 r9:00000003 r8:c2ea0780 r7:bea08dec >> r6:c2ea0780 r5:00000000 >> [   61.149251]  r4:c0a79234 >> [   61.151797] [] (subdev_ioctl) from [] >> (v4l2_ioctl+0x4c/0x60) >> [   61.159207] [] (v4l2_ioctl) from [] >> (sys_ioctl+0x130/0xa74) >> [   61.166520]  r5:00000000 r4:c0845657 >> [   61.170107] [] (sys_ioctl) from [] >> (ret_fast_syscall+0x0/0x54) >> [   61.177681] Exception stack(0xc48adfa8 to 0xc48adff0) >> [   61.182742] dfa0:                   005023a4 004dad3c 00000003 >> c0845657 bea08dec 00000000 >> [   61.190927] dfc0: 005023a4 004dad3c 00000003 00000036 0050c808 >> bea09494 bea08fa0 00000000 >> [   61.199109] dfe0: 00500df8 bea08d2c 004a635d b6cde418 >> [   61.204169]  r10:00000036 r9:c48ac000 r8:c03002c4 r7:00000036 >> r6:00000003 r5:004dad3c >> [   61.212000]  r4:005023a4 >> >> I am attaching the device-tree changes as a file for reference. Any >> ideas what is happening here? >> >> I can see 2 divisions: >> 1. pdata->refclk_hz / pdata->pll_prd >> 2. DIV_ROUND_UP(bps, bps_pr_lane) >> >> 1. should never be 0, since it is initialized during probe and then >> never changed >> >> 2. see how the divisor can be 0 >> pdata->refclk_hz / pdata->pll_prd is the inversion of how pll_prd is >> calculated, and should equal to 6MHz from probe. >> pll_fbd is also set in probe: pll_fbd = bps_pr_lane / refclk_hz * pll_prd >> As I have specified a link-frequency of 594MHz, that produces: >> bps_pr_lane = 2 * 594MHz >> pll_fbd = 2 * 594MHz / 27MHz * (27MHz / 6MHz) = 2 * 594MHz / 6MHz = 198 >> >> Apparently from initialization, the division by zero can not occur :( >> (unless I made a mistake here). >> >> Thank you for reading this far! >> Yours sincerely >> Josua Mayer --------------C8E9470D09B2A4C62CE82231 Content-Type: text/x-log; charset=UTF-8; name="imx6-tc358743-div0.log" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="imx6-tc358743-div0.log" [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 5.10.0-7-armmp (debian-kernel@lists.debian.o= rg) (arm-linux-gnueabihf-gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld= (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.40-2 (2021-05-29) [ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=3D= 10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing ins= truction cache [ 0.000000] OF: fdt: Machine model: SolidRun HummingBoard Dual/Quad [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 16 MiB at 0x4f000000 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000010000000-0x000000003fffffff] [ 0.000000] Normal empty [ 0.000000] HighMem [mem 0x0000000040000000-0x000000004fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000010000000-0x000000004fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000010000000-0x000000004ff= fffff] [ 0.000000] On node 0 totalpages: 262144 [ 0.000000] DMA zone: 1728 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 196608 pages, LIFO batch:63 [ 0.000000] HighMem zone: 65536 pages, LIFO batch:15 [ 0.000000] percpu: Embedded 21 pages/cpu s54540 r8192 d23284 u86016 [ 0.000000] pcpu-alloc: s54540 r8192 d23284 u86016 alloc=3D21*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1=20 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 260= 416 [ 0.000000] Kernel command line: console=3Dttymxc0,115200 deferred_p= robe_timeout=3D10 ahci_imx.hotplug=3D1 log_level=3D7 net.ifnames=3D0 [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 = bytes, linear) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 by= tes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.000000] Memory: 978788K/1048576K available (11264K kernel code, 16= 65K rwdata, 3184K rodata, 2048K init, 335K bss, 53404K reserved, 16384K c= ma-reserved, 245760K highmem) [ 0.000000] random: get_random_u32 called from __kmem_cache_create+0x3= 0/0x42c with crng_init=3D0 [ 0.000000] SLUB: HWalign=3D64, Order=3D0-3, MinObjects=3D0, CPUs=3D2,= Nodes=3D1 [ 0.000000] ftrace: allocating 37350 entries in 73 pages [ 0.000000] ftrace: allocated 73 pages with 3 groups [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=3D8 to nr_cpu_ids=3D= 2. [ 0.000000] Rude variant of Tasks RCU enabled. [ 0.000000] Tracing variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is= 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=3D16, nr_cpu_i= ds=3D2 [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] L2C-310 errata 752271 769419 enabled [ 0.000000] L2C-310 enabling early BRESP for Cortex-A9 [ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9 [ 0.000000] L2C-310 ID prefetch enabled, offset 16 lines [ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled= [ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB [ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x76470001 [ 0.000000] Switching to timer-based delay loop, resolution 333ns [ 0.000007] sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps e= very 715827882841ns [ 0.000028] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xff= ffffff, max_idle_ns: 637086815595 ns [ 0.003258] Console: colour dummy device 80x30 [ 0.003313] Calibrating delay loop (skipped), value calculated using t= imer frequency.. 6.00 BogoMIPS (lpj=3D12000) [ 0.003335] pid_max: default: 32768 minimum: 301 [ 0.003684] LSM: Security Framework initializing [ 0.003790] Yama: disabled by default; enable with sysctl kernel.yama.= * [ 0.004077] AppArmor: AppArmor initialized [ 0.004098] TOMOYO Linux initialized [ 0.004221] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes= , linear) [ 0.004250] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 = bytes, linear) [ 0.005554] CPU: Testing write buffer coherency: ok [ 0.005605] CPU0: Spectre v2: using BPIALL workaround [ 0.006027] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.007252] Setting up static identity map for 0x10300000 - 0x103000ac= [ 0.008739] rcu: Hierarchical SRCU implementation. [ 0.011544] EFI services will not be available. [ 0.012025] smp: Bringing up secondary CPUs ... [ 0.013179] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.013190] CPU1: Spectre v2: using BPIALL workaround [ 0.013375] smp: Brought up 1 node, 2 CPUs [ 0.013391] SMP: Total of 2 processors activated (12.00 BogoMIPS). [ 0.013402] CPU: All CPU(s) started in SVC mode. [ 0.014247] devtmpfs: initialized [ 0.025464] VFP support v0.3: implementor 41 architecture 3 part 30 va= riant 9 rev 4 [ 0.025813] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xfffff= fff, max_idle_ns: 7645041785100000 ns [ 0.025901] futex hash table entries: 512 (order: 3, 32768 bytes, line= ar) [ 0.027136] pinctrl core: initialized pinctrl subsystem [ 0.028586] DMI not present or invalid. [ 0.029028] NET: Registered protocol family 16 [ 0.032760] DMA: preallocated 256 KiB pool for atomic coherent allocat= ions [ 0.033791] audit: initializing netlink subsys (disabled) [ 0.034096] audit: type=3D2000 audit(0.032:1): state=3Dinitialized aud= it_enabled=3D0 res=3D1 [ 0.035617] thermal_sys: Registered thermal governor 'fair_share' [ 0.035627] thermal_sys: Registered thermal governor 'bang_bang' [ 0.035641] thermal_sys: Registered thermal governor 'step_wise' [ 0.035651] thermal_sys: Registered thermal governor 'user_space' [ 0.035662] thermal_sys: Registered thermal governor 'power_allocator'= [ 0.036036] CPU identified as i.MX6Q, silicon rev 1.5 [ 0.560362] No ATAGs? [ 0.560507] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watc= hpoint registers. [ 0.560521] hw-breakpoint: maximum watchpoint size is 4 bytes. [ 0.562373] debugfs: Directory 'dummy-iomuxc-gpr@20e0000' with parent = 'regmap' already present! [ 0.562715] imx6q-pinctrl 20e0000.pinctrl: initialized IMX pinctrl dri= ver [ 0.564701] Serial: AMBA PL011 UART driver [ 0.572988] Kprobes globally optimized [ 2.285860] mxs-dma 110000.dma-apbh: initialized [ 2.291656] iommu: Default domain type: Translated=20 [ 2.292955] vgaarb: loaded [ 2.294216] mc: Linux media interface: v0.10 [ 2.294280] videodev: Linux video capture interface: v2.00 [ 2.296290] NetLabel: Initializing [ 2.296304] NetLabel: domain hash size =3D 128 [ 2.296313] NetLabel: protocols =3D UNLABELED CIPSOv4 CALIPSO [ 2.296412] NetLabel: unlabeled traffic allowed by default [ 2.296890] clocksource: Switched to clocksource mxc_timer1 [ 2.392598] VFS: Disk quotas dquot_6.6.0 [ 2.392731] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 b= ytes) [ 2.393716] AppArmor: AppArmor Filesystem Enabled [ 2.407665] NET: Registered protocol family 2 [ 2.408091] IP idents hash table entries: 16384 (order: 5, 131072 byte= s, linear) [ 2.409866] tcp_listen_portaddr_hash hash table entries: 512 (order: 0= , 6144 bytes, linear) [ 2.409971] TCP established hash table entries: 8192 (order: 3, 32768 = bytes, linear) [ 2.410186] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, = linear) [ 2.410321] TCP: Hash tables configured (established 8192 bind 8192) [ 2.410651] UDP hash table entries: 512 (order: 2, 16384 bytes, linear= ) [ 2.410726] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, l= inear) [ 2.411544] NET: Registered protocol family 1 [ 2.411617] NET: Registered protocol family 44 [ 2.411641] PCI: CLS 0 bytes, default 64 [ 2.412405] Trying to unpack rootfs image as initramfs... [ 4.465878] Freeing initrd memory: 23648K [ 4.466546] hw perfevents: no interrupt-affinity property for /pmu, gu= essing. [ 4.466841] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 = counters available [ 4.469759] Initialise system trusted keyrings [ 4.469819] Key type blacklist registered [ 4.470149] workingset: timestamp_bits=3D14 max_order=3D18 bucket_orde= r=3D4 [ 4.478148] zbud: loaded [ 4.479412] integrity: Platform Keyring initialized [ 4.479435] Key type asymmetric registered [ 4.479448] Asymmetric key parser 'x509' registered [ 4.480076] bounce: pool size: 64 pages [ 4.480169] Block layer SCSI generic (bsg) driver version 0.4 loaded (= major 250) [ 4.480510] io scheduler mq-deadline registered [ 4.502160] imx-sdma 20ec000.sdma: firmware: direct-loading firmware i= mx/sdma/sdma-imx6q.bin [ 4.502838] imx-sdma 20ec000.sdma: loaded firmware 3.5 [ 4.510355] Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled [ 4.514129] Serial: AMBA driver [ 4.515057] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq =3D 34, bas= e_baud =3D 5000000) is a IMX [ 5.286778] printk: console [ttymxc0] enabled [ 5.292649] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq =3D 79, bas= e_baud =3D 5000000) is a IMX [ 5.303792] STM32 USART driver initialized [ 5.311408] libphy: Fixed MDIO Bus: probed [ 5.317626] mousedev: PS/2 mouse device common for all mice [ 5.326659] snvs_rtc 20cc000.snvs:snvs-rtc-lp: registered as rtc0 [ 5.332860] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to= 1970-01-01T00:00:00 UTC (0) [ 5.347709] ledtrig-cpu: registered to indicate activity on CPUs [ 5.356033] NET: Registered protocol family 10 [ 5.418433] Segment Routing with IPv6 [ 5.422279] mip6: Mobile IPv6 [ 5.425279] NET: Registered protocol family 17 [ 5.429928] mpls_gso: MPLS GSO support [ 5.434272] ThumbEE CPU extension supported. [ 5.438585] Registering SWP/SWPB emulation handler [ 5.443591] registered taskstats version 1 [ 5.447729] Loading compiled-in X.509 certificates [ 5.847346] Loaded X.509 cert 'Debian Secure Boot CA: 6ccece7e4c6c0d1f= 6149f3dd27dfcc5cbb419ea1' [ 5.856213] Loaded X.509 cert 'Debian Secure Boot Signer 2021 - linux:= 4b6ef5abca669825178e052c84667ccbc0531f8c' [ 5.866603] zswap: loaded using pool lzo/zbud [ 5.871774] Key type ._fscrypt registered [ 5.875846] Key type .fscrypt registered [ 5.879834] Key type fscrypt-provisioning registered [ 5.885118] AppArmor: AppArmor sha1 policy hashing enabled [ 5.948120] Freeing unused kernel memory: 2048K [ 5.965608] ------------[ cut here ]------------ [ 5.970288] WARNING: CPU: 1 PID: 1 at arch/arm/mm/dump.c:248 note_page= +0x3d0/0x3dc [ 5.977887] arm/mm: Found insecure W+X mapping at address 0xf0879000 [ 5.984264] Modules linked in: [ 5.987359] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.10.0-7-armmp #= 1 Debian 5.10.40-2 [ 5.995454] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)= [ 6.001985] Backtrace:=20 [ 6.004457] [] (dump_backtrace) from [] (show_stac= k+0x20/0x24) [ 6.012038] r7:000000f8 r6:600e0013 r5:00000000 r4:c14cdc90 [ 6.017710] [] (show_stack) from [] (dump_stack+0x= c8/0xdc) [ 6.024952] [] (dump_stack) from [] (__warn+0xfc/0= x158) [ 6.031921] r7:000000f8 r6:00000009 r5:c031f5dc r4:c0fbbaf4 [ 6.037593] [] (__warn) from [] (warn_slowpath_fmt= +0xa4/0xe4) [ 6.045083] r7:c031f5dc r6:000000f8 r5:c0fbbaf4 r4:c0fbbac0 [ 6.050750] [] (warn_slowpath_fmt) from [] (note_p= age+0x3d0/0x3dc) [ 6.058674] r8:00000000 r7:00000000 r6:00000005 r5:c140c4a0 r4:c195bf= 28 [ 6.065382] [] (note_page) from [] (walk_pmd+0xe8/= 0x1a4) [ 6.072438] r10:c195bf28 r9:c0207c20 r8:c18db800 r7:00000000 r6:c0fbb= b3c r5:f087b000 [ 6.080271] r4:c18db1ec [ 6.082814] [] (walk_pmd) from [] (ptdump_check_wx= +0x88/0x104) [ 6.090392] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:c0208= 000 r5:f0800000 [ 6.098225] r4:c0207c28 [ 6.100776] [] (ptdump_check_wx) from [] (mark_rod= ata_ro+0x3c/0x40) [ 6.108784] r6:00000000 r5:c0d0167c r4:00000000 [ 6.113420] [] (mark_rodata_ro) from [] (kernel_in= it+0x44/0x130) [ 6.121175] [] (kernel_init) from [] (ret_from_for= k+0x14/0x2c) [ 6.128748] Exception stack(0xc195bfb0 to 0xc195bff8) [ 6.133806] bfa0: 00000000 0000000= 0 00000000 00000000 [ 6.141990] bfc0: 00000000 00000000 00000000 00000000 00000000 0000000= 0 00000000 00000000 [ 6.150174] bfe0: 00000000 00000000 00000000 00000000 00000013 0000000= 0 [ 6.156792] r5:c0d0167c r4:00000000 [ 6.160408] ---[ end trace ab8e425bd50a74a1 ]--- [ 6.165270] Checked W+X mappings: FAILED, 1 W+X pages found [ 6.170890] Run /init as init process [ 6.174577] with arguments: [ 6.174584] /init [ 6.174591] with environment: [ 6.174599] HOME=3D/ [ 6.174606] TERM=3Dlinux [ 6.174612] log_level=3D7 [ 6.992804] gpio_mxc: module verification failed: signature and/or req= uired key missing - tainting kernel [ 7.040467] v_3v2: supplied by v_5v0 [ 7.044181] vcc_3v3: supplied by v_3v2 [ 7.060202] v_usb2: supplied by v_5v0 [ 7.081024] v_usb1: supplied by v_5v0 [ 7.098272] imx6q-pcie 1ffc000.pcie: host bridge /soc/pcie@1ffc000 ran= ges: [ 7.101211] vdd1p1: supplied by regulator-dummy [ 7.110471] vdd3p0: supplied by regulator-dummy [ 7.119572] imx6q-pcie 1ffc000.pcie: IO 0x0001f80000..0x0001f8ff= ff -> 0x0000000000 [ 7.122380] libphy: fec_enet_mii_bus: probed [ 7.127778] imx6q-pcie 1ffc000.pcie: MEM 0x0001000000..0x0001efff= ff -> 0x0001000000 [ 7.134435] vdd2p5: supplied by regulator-dummy [ 7.173532] vddarm: supplied by regulator-dummy [ 7.178688] vddpu: supplied by regulator-dummy [ 7.183686] vddsoc: supplied by regulator-dummy [ 7.232179] mdio_bus 2188000.ethernet-1: MDIO device at address 4 is m= issing. [ 7.260186] v_sd: supplied by v_3v2 [ 7.273570] SCSI subsystem initialized [ 7.305525] libata version 3.00 loaded. [ 7.311979] ahci-imx 2200000.sata: fsl,transmit-level-mV value 1025, u= sing 00000024 [ 7.319719] ahci-imx 2200000.sata: fsl,transmit-boost-mdB value 3330, = using 00000480 [ 7.327524] ahci-imx 2200000.sata: fsl,transmit-atten-16ths value 9, u= sing 00002000 [ 7.335227] ahci-imx 2200000.sata: fsl,receive-eq-mdB value 3000, usin= g 05000000 [ 7.361945] ahci-imx 2200000.sata: supply ahci not found, using dummy = regulator [ 7.369561] ahci-imx 2200000.sata: supply phy not found, using dummy r= egulator [ 7.372409] sdhci: Secure Digital Host Controller Interface driver [ 7.376989] ahci-imx 2200000.sata: supply target not found, using dumm= y regulator [ 7.383067] sdhci: Copyright(c) Pierre Ossman [ 7.393166] ahci-imx 2200000.sata: SSS flag set, parallel bus scan dis= abled [ 7.401437] sdhci-pltfm: SDHCI platform and OF driver helper [ 7.401997] ahci-imx 2200000.sata: AHCI 0001.0300 32 slots 1 ports 3 G= bps 0x1 impl platform mode [ 7.416386] ahci-imx 2200000.sata: flags: ncq sntf stag pm led clo onl= y pmp pio slum part ccc apst=20 [ 7.434548] scsi host0: ahci-imx [ 7.437898] rtc-pcf8523 0-0068: low voltage detected, time is unreliab= le [ 7.446738] ata1: SATA max UDMA/133 mmio [mem 0x02200000-0x02203fff] p= ort 0x100 irq 82 [ 7.465218] rtc-pcf8523 0-0068: registered as rtc1 [ 7.466410] usbcore: registered new interface driver usbfs [ 7.475851] usbcore: registered new interface driver hub [ 7.481376] usbcore: registered new device driver usb [ 7.493993] sdhci-esdhc-imx 2190000.mmc: allocated mmc-pwrseq [ 7.509403] i2c i2c-0: IMX I2C adapter registered [ 7.511790] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver= [ 7.525729] sdhci-esdhc-imx 2194000.mmc: Got CD GPIO [ 7.527985] i2c i2c-1: IMX I2C adapter registered [ 7.546975] usb_phy_generic usbphynop1: supply vcc not found, using du= mmy regulator [ 7.555182] usb_phy_generic usbphynop2: supply vcc not found, using du= mmy regulator [ 7.590986] ci_hdrc ci_hdrc.0: EHCI Host Controller [ 7.597462] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus nu= mber 1 [ 7.621241] mmc1: SDHCI controller on 2194000.mmc [2194000.mmc] using = ADMA [ 7.628711] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 [ 7.635824] usb usb1: New USB device found, idVendor=3D1d6b, idProduct= =3D0002, bcdDevice=3D 5.10 [ 7.644176] usb usb1: New USB device strings: Mfr=3D3, Product=3D2, Se= rialNumber=3D1 [ 7.651430] usb usb1: Product: EHCI Host Controller [ 7.656382] usb usb1: Manufacturer: Linux 5.10.0-7-armmp ehci_hcd [ 7.662523] usb usb1: SerialNumber: ci_hdrc.0 [ 7.670136] hub 1-0:1.0: USB hub found [ 7.675254] hub 1-0:1.0: 1 port detected [ 7.690281] ci_hdrc ci_hdrc.1: EHCI Host Controller [ 7.696531] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus nu= mber 2 [ 7.714567] mmc1: host does not support reading read-only switch, assu= ming write-enable [ 7.723905] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 [ 7.731000] usb usb2: New USB device found, idVendor=3D1d6b, idProduct= =3D0002, bcdDevice=3D 5.10 [ 7.739386] usb usb2: New USB device strings: Mfr=3D3, Product=3D2, Se= rialNumber=3D1 [ 7.746643] usb usb2: Product: EHCI Host Controller [ 7.751550] usb usb2: Manufacturer: Linux 5.10.0-7-armmp ehci_hcd [ 7.757670] usb usb2: SerialNumber: ci_hdrc.1 [ 7.763676] mmc1: new high speed SDXC card at address 0001 [ 7.771359] hub 2-0:1.0: USB hub found [ 7.777603] mmcblk1: mmc1:0001 00000 59.6 GiB=20 [ 7.782565] hub 2-0:1.0: 1 port detected [ 7.792453] mmcblk1: p1 [ 7.824990] mmc0: SDHCI controller on 2190000.mmc [2190000.mmc] using = ADMA [ 7.932995] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 7.940699] ata1.00: ATA-9: TS32GMSA370, 20140516, max UDMA/133 [ 7.946691] ata1.00: 62533296 sectors, multi 1: LBA48 NCQ (depth 32) [ 7.954547] ata1.00: configured for UDMA/133 [ 8.124932] usb 2-1: new high-speed USB device number 2 using ci_hdrc [ 8.256928] imx6q-pcie 1ffc000.pcie: Phy link never came up [ 8.265844] imx6q-pcie 1ffc000.pcie: PCI host bridge to bus 0000:00 [ 8.272221] pci_bus 0000:00: root bus resource [bus 00-ff] [ 8.277746] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 8.283958] pci_bus 0000:00: root bus resource [mem 0x01000000-0x01eff= fff] [ 8.290956] pci 0000:00:00.0: [16c3:abcd] type 01 class 0x060400 [ 8.297051] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x000fffff] [ 8.303378] pci 0000:00:00.0: reg 0x38: [mem 0x00000000-0x0000ffff pre= f] [ 8.310134] pci 0000:00:00.0: Limiting cfg_size to 512 [ 8.315412] pci 0000:00:00.0: supports D1 [ 8.319496] pci 0000:00:00.0: PME# supported from D0 D1 D3hot D3cold [ 8.327294] usb 2-1: New USB device found, idVendor=3D04b4, idProduct=3D= 6570, bcdDevice=3D32.99 [ 8.331929] PCI: bus0: Fast back to back transfers disabled [ 8.335547] usb 2-1: New USB device strings: Mfr=3D0, Product=3D1, Ser= ialNumber=3D0 [ 8.345881] PCI: bus1: Fast back to back transfers enabled [ 8.348279] usb 2-1: Product: USB2.0 Hub [ 8.353887] pci 0000:00:00.0: BAR 0: assigned [mem 0x01000000-0x010fff= ff] [ 8.358859] hub 2-1:1.0: USB hub found [ 8.364541] pci 0000:00:00.0: BAR 6: assigned [mem 0x01100000-0x0110ff= ff pref] [ 8.364553] pci 0000:00:00.0: PCI bridge to [bus 01-ff] [ 8.365126] pcieport 0000:00:00.0: PME: Signaling with IRQ 311 [ 8.370972] hub 2-1:1.0: 4 ports detected [ 8.382227] pcieport 0000:00:00.0: AER: enabled with IRQ 311 [ 8.398969] scsi 0:0:0:0: Direct-Access ATA TS32GMSA370 = 0516 PQ: 0 ANSI: 5 [ 8.466092] sd 0:0:0:0: [sda] 62533296 512-byte logical blocks: (32.0 = GB/29.8 GiB) [ 8.474094] sd 0:0:0:0: [sda] Write Protect is off [ 8.478963] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 8.479384] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enable= d, doesn't support DPO or FUA [ 8.512980] sd 0:0:0:0: [sda] Attached SCSI disk [ 8.524046] random: fast init done [ 9.029163] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data = mode. Opts: (null) [ 9.365741] Not activating Mandatory Access Control as /sbin/tomoyo-in= it does not exist. [ 9.863746] systemd[1]: System time before build time, advancing clock= =2E [ 9.963825] systemd[1]: Inserted module 'autofs4' [ 10.079555] systemd[1]: systemd 247.3-5 running in system mode. (+PAM = +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCR= YPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -ID= N +PCRE2 default-hierarchy=3Dunified) [ 10.102714] systemd[1]: Detected architecture arm. [ 10.138127] systemd[1]: Set hostname to . [ 11.138009] systemd[1]: Queued start job for default target Multi-User= System. [ 11.146808] random: systemd: uninitialized urandom read (16 bytes read= ) [ 11.159138] systemd[1]: Created slice system-getty.slice. [ 11.181193] random: systemd: uninitialized urandom read (16 bytes read= ) [ 11.189890] systemd[1]: Created slice system-modprobe.slice. [ 11.213123] random: systemd: uninitialized urandom read (16 bytes read= ) [ 11.221868] systemd[1]: Created slice system-serial\x2dgetty.slice. [ 11.246753] systemd[1]: Created slice User and Session Slice. [ 11.269572] systemd[1]: Started Dispatch Password Requests to Console = Directory Watch. [ 11.293462] systemd[1]: Started Forward Password Requests to Wall Dire= ctory Watch. [ 11.318360] systemd[1]: Set up automount Arbitrary Executable File For= mats File System Automount Point. [ 11.345362] systemd[1]: Reached target Local Encrypted Volumes. [ 11.369471] systemd[1]: Reached target Paths. [ 11.385235] systemd[1]: Reached target Remote File Systems. [ 11.405174] systemd[1]: Reached target Slices. [ 11.421361] systemd[1]: Reached target Swap. [ 11.438031] systemd[1]: Listening on fsck to fsckd communication Socke= t. [ 11.461518] systemd[1]: Listening on initctl Compatibility Named Pipe.= [ 11.486160] systemd[1]: Listening on Journal Audit Socket. [ 11.509958] systemd[1]: Listening on Journal Socket (/dev/log). [ 11.534013] systemd[1]: Listening on Journal Socket. [ 11.560717] systemd[1]: Listening on udev Control Socket. [ 11.581891] systemd[1]: Listening on udev Kernel Socket. [ 11.601982] systemd[1]: Condition check resulted in Huge Pages File Sy= stem being skipped. [ 11.616056] systemd[1]: Mounting POSIX Message Queue File System... [ 11.643295] systemd[1]: Mounting Kernel Debug File System... [ 11.667718] systemd[1]: Mounting Kernel Trace File System... [ 11.696180] systemd[1]: Starting Create list of static device nodes fo= r the current kernel... [ 11.728195] systemd[1]: Starting Load Kernel Module configfs... [ 11.755978] systemd[1]: Starting Load Kernel Module drm... [ 11.782029] systemd[1]: Starting Load Kernel Module fuse... [ 11.807917] systemd[1]: Condition check resulted in Set Up Additional = Binary Formats being skipped. [ 11.817473] systemd[1]: Condition check resulted in File System Check = on Root Device being skipped. [ 11.841654] systemd[1]: Starting Journal Service... [ 11.860488] fuse: init (API version 7.32) [ 11.885351] systemd[1]: Starting Load Kernel Modules... [ 11.919130] systemd[1]: Starting Remount Root and Kernel File Systems.= =2E. [ 11.959354] systemd[1]: Starting Coldplug All udev Devices... [ 12.025200] systemd[1]: Mounted POSIX Message Queue File System. [ 12.030455] EXT4-fs (mmcblk1p1): re-mounted. Opts: (null) [ 12.049904] systemd[1]: Mounted Kernel Debug File System. [ 12.074058] systemd[1]: Mounted Kernel Trace File System. [ 12.091534] systemd[1]: Finished Create list of static device nodes fo= r the current kernel. [ 12.131773] systemd[1]: modprobe@configfs.service: Succeeded. [ 12.143130] systemd[1]: Finished Load Kernel Module configfs. [ 12.171445] systemd[1]: modprobe@drm.service: Succeeded. [ 12.187480] systemd[1]: Finished Load Kernel Module drm. [ 12.219541] systemd[1]: modprobe@fuse.service: Succeeded. [ 12.235092] systemd[1]: Finished Load Kernel Module fuse. [ 12.259916] systemd[1]: Finished Load Kernel Modules. [ 12.283765] systemd[1]: Finished Remount Root and Kernel File Systems.= [ 12.324279] systemd[1]: Mounting FUSE Control File System... [ 12.366804] systemd[1]: Mounting Kernel Configuration File System... [ 12.402602] systemd[1]: Condition check resulted in Rebuild Hardware D= atabase being skipped. [ 12.411552] systemd[1]: Condition check resulted in Platform Persisten= t Storage Archival being skipped. [ 12.426957] systemd[1]: Starting Load/Save Random Seed... [ 12.451212] systemd[1]: Starting Apply Kernel Variables... [ 12.480087] systemd[1]: Starting Create System Users... [ 12.507851] systemd[1]: Started Journal Service. [ 12.720971] systemd-journald[176]: Received client request to flush ru= ntime journal. [ 12.754991] systemd-journald[176]: File /var/log/journal/9bbcae0a3ade4= af68637450cb7940ea7/system.journal corrupted or uncleanly shut down, rena= ming and replacing. [ 14.488383] Registered IR keymap rc-empty [ 14.519846] imx-ipuv3 2400000.ipu: IPUv3H probed [ 14.537117] rc rc0: gpio_ir_recv as /devices/platform/ir-receiver/rc/r= c0 [ 14.564692] rc rc0: lirc_dev: driver gpio_ir_recv registered at minor = =3D 0, raw IR receiver, no transmitter [ 14.585628] imx-ipuv3 2800000.ipu: IPUv3H probed [ 14.634052] input: gpio_ir_recv as /devices/platform/ir-receiver/rc/rc= 0/input0 [ 14.725036] rc rc0: two consecutive events of type space [ 14.785167] imx_media_common: module is from the staging directory, th= e quality is unknown, you have been warned. [ 14.808298] etnaviv etnaviv: bound 130000.gpu (ops gpu_ops [etnaviv]) [ 14.885127] etnaviv etnaviv: bound 134000.gpu (ops gpu_ops [etnaviv]) [ 14.913150] imx6_media: module is from the staging directory, the qual= ity is unknown, you have been warned. [ 14.923953] etnaviv etnaviv: bound 2204000.gpu (ops gpu_ops [etnaviv])= [ 14.930569] etnaviv-gpu 130000.gpu: model: GC2000, revision: 5108 [ 15.008976] random: crng init done [ 15.014400] random: 7 urandom warning(s) missed due to ratelimiting [ 15.061910] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007 [ 15.076995] etnaviv-gpu 2204000.gpu: model: GC355, revision: 1215 [ 15.083315] etnaviv-gpu 2204000.gpu: Ignoring GPU with VG and FE2.0 [ 15.141725] coda 2040000.vpu: firmware: failed to load vpu_fw_imx6q.bi= n (-2) [ 15.148860] firmware_class: See https://wiki.debian.org/Firmware for i= nformation about missing firmware [ 15.158384] coda 2040000.vpu: Direct firmware load for vpu_fw_imx6q.bi= n failed with error -2 [ 15.186742] CAN device driver interface [ 15.226649] [drm] Initialized etnaviv 1.3.0 20151214 for etnaviv on mi= nor 0 [ 15.246427] coda 2040000.vpu: firmware: direct-loading firmware vpu/vp= u_fw_imx6q.bin [ 15.254350] coda 2040000.vpu: Using fallback firmware vpu/vpu_fw_imx6q= =2Ebin [ 15.274730] coda 2040000.vpu: Firmware code revision: 46076 [ 15.280378] coda 2040000.vpu: Initialized CODA960. [ 15.285223] coda 2040000.vpu: Firmware version: 3.1.1 [ 15.291967] imx-drm display-subsystem: bound imx-ipuv3-crtc.2 (ops imx= _drm_exit [imxdrm]) [ 15.300471] imx-drm display-subsystem: bound imx-ipuv3-crtc.3 (ops imx= _drm_exit [imxdrm]) [ 15.309700] coda 2040000.vpu: encoder registered as video0 [ 15.315613] imx-drm display-subsystem: bound imx-ipuv3-crtc.6 (ops imx= _drm_exit [imxdrm]) [ 15.323903] coda 2040000.vpu: decoder registered as video1 [ 15.350147] coda 2040000.vpu: encoder registered as video2 [ 15.377312] imx-drm display-subsystem: bound imx-ipuv3-crtc.7 (ops imx= _drm_exit [imxdrm]) [ 15.411721] coda 2040000.vpu: decoder registered as video3 [ 15.458987] dwhdmi-imx 120000.hdmi: Detected HDMI TX controller v1.30a= with HDCP (DWC HDMI 3D TX PHY) [ 15.495675] fsl-ssi-dai 2028000.ssi: No cache defaults, reading back f= rom HW [ 15.550325] imx-drm display-subsystem: bound 120000.hdmi (ops dw_hdmi_= imx_ops [dw_hdmi_imx]) [ 15.645640] [drm] Initialized imx-drm 1.0.0 20120507 for display-subsy= stem on minor 1 [ 15.665222] imx-drm display-subsystem: [drm] Cannot find any crtc or s= izes [ 16.100460] platform imx6q-cpufreq: deferred probe pending [ 16.106562] platform 20c8000.anatop:tempmon: deferred probe pending [ 16.330566] imx_thermal 20c8000.anatop:tempmon: Extended Commercial CP= U temperature grade - max:105C critical:100C passive:95C [ 16.393072] imx6_mipi_csi2: module is from the staging directory, the = quality is unknown, you have been warned. [ 16.464751] sgtl5000 0-000a: Error reading chip id -6 [ 16.891557] tc358743 0-000f: initialized pll_prd =3D 4 [ 16.896618] tc358743 0-000f: unsupported bps per lane: 1188000000 bps [ 16.960267] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 17.175326] systemd-journald[176]: Failed to read journal file /var/lo= g/journal/9bbcae0a3ade4af68637450cb7940ea7/user-1000.journal for rotation= , trying to move it out of the way: Text file busy [ 17.203559] tc358743 0-000f: pll_prd =3D 4 [ 17.207588] tc358743 0-000f: pll_fbd =3D 0 [ 17.211539] Division by zero in kernel. [ 17.215415] CPU: 1 PID: 208 Comm: systemd-udevd Tainted: G WC = E 5.10.0-7-armmp #1 Debian 5.10.40-2 [ 17.225418] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)= [ 17.231947] Backtrace:=20 [ 17.234417] [] (dump_backtrace) from [] (show_stac= k+0x20/0x24) [ 17.241993] r7:c28c5659 r6:60030013 r5:00000000 r4:c14cdc90 [ 17.247662] [] (show_stack) from [] (dump_stack+0x= c8/0xdc) [ 17.254892] [] (dump_stack) from [] (__div0+0x24/0= x28) [ 17.261770] r7:c28c5659 r6:c28c5504 r5:1a5e0000 r4:c28c5490 [ 17.267442] [] (__div0) from [] (Ldiv0+0x8/0x10) [ 17.273844] [] (tc358743_num_csi_lanes_needed [tc358743]) fr= om [] (tc358743_set_csi+0x1c/0x2f8 [tc358743]) [ 17.285239] r7:c28c5659 r6:bf4d2380 r5:c28c55e8 r4:c28c5490 [ 17.290929] [] (tc358743_set_csi [tc358743]) from [] (tc358743_s_dv_timings+0x104/0x1a8 [tc358743]) [ 17.301724] r7:c28c5659 r6:bf4d2380 r5:c28c55e8 r4:c28c5490 [ 17.307430] [] (tc358743_s_dv_timings [tc358743]) from [] (tc358743_probe+0x93c/0xfec [tc358743]) [ 17.318060] r7:00008502 r6:c28c5574 r5:c28c5490 r4:c28c5440 [ 17.323757] [] (tc358743_probe [tc358743]) from []= (i2c_device_probe+0x100/0x2e0) [ 17.332987] r10:00000054 r9:bf4d20a0 r8:00000000 r7:bf4d20a0 r6:c1ae5= c00 r5:00000000 [ 17.340818] r4:c1ae5c20 [ 17.343366] [] (i2c_device_probe) from [] (really_= probe+0x108/0x514) [ 17.351464] r9:bf4d20a0 r8:00000000 r7:c15ed5a4 r6:00000000 r5:c15ed5= 9c r4:c1ae5c20 [ 17.359214] [] (really_probe) from [] (driver_prob= e_device+0x100/0x1d4) [ 17.367571] r10:c1404e00 r9:bf4d2140 r8:c0fd4e44 r7:bf4d20a0 r6:c1ae5= c64 r5:bf4d20a0 [ 17.375401] r4:c1ae5c20 [ 17.377944] [] (driver_probe_device) from [] (devi= ce_driver_attach+0xb8/0xc0) [ 17.386822] r9:bf4d2140 r8:c0fd4e44 r7:bf4d20a0 r6:c1ae5c64 r5:000000= 00 r4:c1ae5c20 [ 17.394587] [] (device_driver_attach) from [] (__d= river_attach+0x9c/0x150) [ 17.403207] r7:c155cff4 r6:c1ae5c20 r5:bf4d20a0 r4:00000000 [ 17.408876] [] (__driver_attach) from [] (bus_for_= each_dev+0x84/0xd0) [ 17.417060] r7:c155cff4 r6:c098c094 r5:bf4d20a0 r4:00000000 [ 17.422727] [] (bus_for_each_dev) from [] (driver_= attach+0x2c/0x30) [ 17.430742] r6:00000000 r5:c2d3cb00 r4:bf4d20a0 [ 17.435371] [] (driver_attach) from [] (bus_add_dr= iver+0x120/0x20c) [ 17.443382] [] (bus_add_driver) from [] (driver_re= gister+0x98/0x128) [ 17.451479] r7:00000000 r6:bf4d214c r5:00000000 r4:bf4d20a0 [ 17.457151] [] (driver_register) from [] (i2c_regi= ster_driver+0x50/0xd0) [ 17.465593] r5:c2d3e980 r4:bf4d2084 [ 17.469203] [] (i2c_register_driver) from [] (tc35= 8743_driver_init+0x24/0x1000 [tc358743]) [ 17.479208] r5:c2d3e980 r4:bf4d5000 [ 17.482810] [] (tc358743_driver_init [tc358743]) from [] (do_one_initcall+0x50/0x27c) [ 17.492387] [] (do_one_initcall) from [] (do_init_= module+0x70/0x2a4) [ 17.500482] r7:bf4d2270 r6:bf4d214c r5:c2d3e980 r4:bf4d2140 [ 17.506149] [] (do_init_module) from [] (load_modu= le+0x232c/0x2760) [ 17.514155] r6:bf4d214c r5:00000000 r4:c2985f30 [ 17.518778] [] (load_module) from [] (sys_finit_mo= dule+0xc8/0x12c) [ 17.526703] r10:0000017b r9:c2984000 r8:c03002c4 r7:0000017b r6:b6f28= 504 r5:00000006 [ 17.534533] r4:00000000 [ 17.537078] [] (sys_finit_module) from [] (__sys_t= race_return+0x0/0x1c) [ 17.545434] Exception stack(0xc2985fa8 to 0xc2985ff0) [ 17.550493] 5fa0: b6f29708 00000000 00000006 b6f2850= 4 00000000 b6f2927c [ 17.558677] 5fc0: b6f29708 00000000 cbc85200 0000017b 01cd1370 004c972= b 01cd2da8 01ccebb8 [ 17.566857] 5fe0: bed716e8 bed716d8 b6f22d49 b6e0f4f2 [ 17.571913] r6:cbc85200 r5:00000000 r4:b6f29708 [ 17.736927] raid6: neonx8 gen() 613 MB/s [ 17.745874] imx6_media_csi: module is from the staging directory, the = quality is unknown, you have been warned. [ 17.765646] imx6_media_csi: module is from the staging directory, the = quality is unknown, you have been warned. [ 17.808914] raid6: neonx8 xor() 489 MB/s [ 17.813414] tc358743 0-000f: tc358743 found @ 0x1e (21a0000.i2c) [ 17.833031] imx6_media_csi: module is from the staging directory, the = quality is unknown, you have been warned. [ 17.843876] imx6_media_csi: module is from the staging directory, the = quality is unknown, you have been warned. [ 17.880928] raid6: neonx4 gen() 1506 MB/s [ 17.909235] ipu1_csi0: Registered ipu1_csi0 capture as /dev/video4 [ 17.952927] raid6: neonx4 xor() 974 MB/s [ 17.961480] ipu1_ic_prpenc: Registered ipu1_ic_prpenc capture as /dev/= video5 [ 18.024898] raid6: neonx2 gen() 1403 MB/s [ 18.052109] ipu1_ic_prpvf: Registered ipu1_ic_prpvf capture as /dev/vi= deo6 [ 18.096914] raid6: neonx2 xor() 949 MB/s [ 18.113013] ipu1_csi1: Registered ipu1_csi1 capture as /dev/video7 [ 18.166398] ipu2_csi0: Registered ipu2_csi0 capture as /dev/video8 [ 18.168919] raid6: neonx1 gen() 1254 MB/s [ 18.219902] ipu2_ic_prpenc: Registered ipu2_ic_prpenc capture as /dev/= video9 [ 18.244899] raid6: neonx1 xor() 862 MB/s [ 18.284123] ipu2_ic_prpvf: Registered ipu2_ic_prpvf capture as /dev/vi= deo10 [ 18.316941] raid6: int32x8 gen() 283 MB/s [ 18.350464] ipu2_csi1: Registered ipu2_csi1 capture as /dev/video11 [ 18.388929] raid6: int32x8 xor() 185 MB/s [ 18.413948] imx-media: Registered ipu_ic_pp csc/scaler as /dev/video12= [ 18.461011] raid6: int32x4 gen() 307 MB/s [ 18.532923] raid6: int32x4 xor() 198 MB/s [ 18.604965] raid6: int32x2 gen() 391 MB/s [ 18.676931] raid6: int32x2 xor() 198 MB/s [ 18.748921] raid6: int32x1 gen() 398 MB/s [ 18.820945] raid6: int32x1 xor() 175 MB/s [ 18.825253] raid6: using algorithm neonx4 gen() 1506 MB/s [ 18.830694] raid6: .... xor() 974 MB/s, rmw enabled [ 18.835608] raid6: using neon recovery algorithm [ 19.631405] xor: measuring software checksum speed [ 19.642821] arm4regs : 1529 MB/sec [ 19.655866] 8regs : 1140 MB/sec [ 19.668500] 32regs : 1220 MB/sec [ 19.681464] neon : 1151 MB/sec [ 19.685844] xor: using function: arm4regs (1529 MB/sec) [ 20.018070] Qualcomm Atheros AR8035 2188000.ethernet-1:00: attached PH= Y driver [Qualcomm Atheros AR8035] (mii_bus:phy_addr=3D2188000.ethernet-1= :00, irq=3DPOLL) [ 20.051889] Btrfs loaded, crc32c=3Dcrc32c-generic [ 20.065199] BTRFS: device label ssd devid 1 transid 33605 /dev/sda sca= nned by systemd-udevd (209) [ 24.125326] fec 2188000.ethernet eth0: Link is Up - 1Gbps/Full - flow = control rx/tx [ 24.140969] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 37.853014] brcm_reg: disabling --------------C8E9470D09B2A4C62CE82231--