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Subject[BUG BISECT] Ethernet fail on VF50 (OF: Don't set default coherent DMA mask)
Hi,

On today's next, the bisect pointed commit
ff33d1030a6ca87cea9a41e1a2ea7750a781ab3d as fault for my boot failures
with NFSv4 root on Toradex Colibri VF50 (Iris carrier board).

Author: Robin Murphy <robin.murphy@arm.com>
Date: Mon Jul 23 23:16:12 2018 +0100
OF: Don't set default coherent DMA mask

Board: Toradex Colibri VF50 (NXP VF500, Cortex A5, serial configured
with DMA) on Iris Carrier.

It looks like problem with Freescale Ethernet driver:
[ 15.458477] fsl-edma 40018000.dma-controller: coherent DMA mask is unset
[ 15.465284] fsl-lpuart 40027000.serial: Cannot prepare cyclic DMA
[ 15.472086] Root-NFS: no NFS server address
[ 15.476359] VFS: Unable to mount root fs via NFS, trying floppy.
[ 15.484228] VFS: Cannot open root device "nfs" or
unknown-block(2,0): error -6
[ 15.491664] Please append a correct "root=" boot option; here are
the available partitions:
[ 15.500188] 0100 16384 ram0
[ 15.500200] (driver?)
[ 15.506406] Kernel panic - not syncing: VFS: Unable to mount root
fs on unknown-block(2,0)
[ 15.514747] ---[ end Kernel panic - not syncing: VFS: Unable to
mount root fs on unknown-block(2,0) ]---

Attached - defconfig and full boot log.

Any hints?
Let me know if you need any more information.

Best regards,
Krzysztof
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.18.0-rc6-00011-g12be1e1a09c8 (krzk@PC-kkoz) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)) #394 Fri Jul 27 15:01:34 CEST 2018
[ 0.000000] CPU: ARMv7 Processor [410fc051] revision 1 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Toradex Colibri VF50 on Colibri Evaluation Board
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] cma: Reserved 16 MiB at 0x87000000
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] random: get_random_bytes called from start_kernel+0xa0/0x3fc with crng_init=0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: ip=:::::eth0: root=/dev/nfs console=tty1 console=ttyLP0,115200n8 consoleblank=0
[ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Memory: 103836K/131072K available (6144K kernel code, 193K rwdata, 1600K rodata, 1024K init, 142K bss, 10852K reserved, 16384K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0x88800000 - 0xff800000 (1904 MB)
[ 0.000000] lowmem : 0x80000000 - 0x88000000 ( 128 MB)
[ 0.000000] modules : 0x7f000000 - 0x80000000 ( 16 MB)
[ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (7136 kB)
[ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
[ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 194 kB)
[ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 143 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000058] sched_clock: 64 bits at 132MHz, resolution 7ns, wraps every 2199023255551ns
[ 0.000131] clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x1e7178659b, max_idle_ns: 440795204301 ns
[ 0.000221] Switching to timer-based delay loop, resolution 7ns
[ 0.001479] Console: colour dummy device 80x30
[ 0.002469] console [tty1] enabled
[ 0.002562] Calibrating delay loop (skipped), value calculated using timer frequency.. 264.00 BogoMIPS (lpj=1320000)
[ 0.002661] pid_max: default: 32768 minimum: 301
[ 0.003168] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.003281] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.005152] CPU: Testing write buffer coherency: ok
[ 0.007574] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.010395] devtmpfs: initialized
[ 0.026025] VFP support v0.3: implementor 41 architecture 2 part 30 variant 5 rev 1
[ 0.026971] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.027109] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.029626] pinctrl core: initialized pinctrl subsystem
[ 0.033125] NET: Registered protocol family 16
[ 0.037527] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.041234] cpuidle: using governor menu
[ 0.041656] hw-breakpoint: found 2 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.041749] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.053893] vf610-pinctrl 40048000.iomuxc: DMA mask not set
[ 0.054590] vf610-pinctrl 40048000.iomuxc: initialized IMX pinctrl driver
[ 0.060556] mxs_phy 40050800.usbphy: DMA mask not set
[ 0.062169] mxs_phy 40050c00.usbphy: DMA mask not set
[ 0.099947] fsl-edma 40018000.dma-controller: DMA mask not set
[ 0.110747] fsl-edma 40098000.dma-controller: DMA mask not set
[ 0.122064] reg-fixed-voltage regulator-module-3v3: DMA mask not set
[ 0.123095] reg-fixed-voltage regulator-module-3v3-avdd: DMA mask not set
[ 0.124035] reg-fixed-voltage regulator-3v3: DMA mask not set
[ 0.124997] reg-fixed-voltage regulator-5v0: DMA mask not set
[ 0.125797] +V3.3: supplied by 3.3V
[ 0.126371] reg-fixed-voltage regulator-usbh-vbus: DMA mask not set
[ 0.128294] SCSI subsystem initialized
[ 0.129228] usbcore: registered new interface driver usbfs
[ 0.129554] usbcore: registered new interface driver hub
[ 0.129967] usbcore: registered new device driver usb
[ 0.131324] imx-i2c 40066000.i2c: DMA mask not set
[ 0.132928] i2c i2c-0: IMX I2C adapter registered
[ 0.133169] i2c i2c-0: using dma0chan0 (tx) and dma0chan1 (rx) for DMA transfers
[ 0.133913] pps_core: LinuxPPS API ver. 1 registered
[ 0.133999] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.134173] PTP clock support registered
[ 0.138225] clocksource: Switched to clocksource arm_global_timer
[ 0.179588] NET: Registered protocol family 2
[ 0.181405] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[ 0.181577] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.181674] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.181754] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.182243] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.182365] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.182976] NET: Registered protocol family 1
[ 0.184778] RPC: Registered named UNIX socket transport module.
[ 0.184878] RPC: Registered udp transport module.
[ 0.184927] RPC: Registered tcp transport module.
[ 0.184970] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.186742] armv7-pmu 40089000.pmu: DMA mask not set
[ 0.187330] hw perfevents: enabled with armv7_cortex_a5 PMU driver, 3 counters available
[ 0.191561] Initialise system trusted keyrings
[ 0.192178] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[ 0.212366] NFS: Registering the id_resolver key type
[ 0.212528] Key type id_resolver registered
[ 0.212591] Key type id_legacy registered
[ 0.212766] ntfs: driver 2.1.32 [Flags: R/W].
[ 0.214603] fuse init (API version 7.27)
[ 0.228438] Key type asymmetric registered
[ 0.228543] Asymmetric key parser 'x509' registered
[ 0.228657] io scheduler noop registered
[ 0.229244] io scheduler cfq registered (default)
[ 0.229326] io scheduler mq-deadline registered
[ 0.229380] io scheduler kyber registered
[ 0.230875] gpio-vf610 40049000.gpio: DMA mask not set
[ 0.232843] gpio-vf610 4004a000.gpio: DMA mask not set
[ 0.234518] gpio-vf610 4004b000.gpio: DMA mask not set
[ 0.236214] gpio-vf610 4004c000.gpio: DMA mask not set
[ 0.237851] gpio-vf610 4004d000.gpio: DMA mask not set
[ 0.240304] fsl-ftm-pwm 40038000.pwm: DMA mask not set
[ 0.241481] fsl-ftm-pwm 40039000.pwm: DMA mask not set
[ 0.245075] fsl-lpuart 40027000.serial: DMA mask not set
[ 0.245618] 40027000.serial: ttyLP0 at MMIO 0x40027000 (irq = 19, base_baud = 4125000) is a FSL_LPUART
[ 0.880945] console [ttyLP0] enabled
[ 0.886031] fsl-lpuart 40028000.serial: DMA mask not set
[ 0.891991] 40028000.serial: ttyLP1 at MMIO 0x40028000 (irq = 20, base_baud = 4125000) is a FSL_LPUART
[ 0.903108] fsl-lpuart 40029000.serial: DMA mask not set
[ 0.909073] 40029000.serial: ttyLP2 at MMIO 0x40029000 (irq = 21, base_baud = 4125000) is a FSL_LPUART
[ 0.924431] brd: module loaded
[ 0.952401] loop: module loaded
[ 0.958600] vf610_nfc 400e0000.nand: DMA mask not set
[ 0.964603] nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xf1
[ 0.971158] nand: Macronix NAND 128MiB 3,3V 8-bit
[ 0.975929] nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[ 0.984095] Bad block table found at page 65472, version 0x01
[ 0.990259] Bad block table found at page 65408, version 0x01
[ 0.996309] nand_read_bbt: bad block at 0x0000013c0000
[ 1.001801] 6 fixed-partitions partitions found on MTD device vf610_nfc
[ 1.008577] Creating 6 MTD partitions on "vf610_nfc":
[ 1.013711] 0x000000000000-0x000000020000 : "vf-bcb"
[ 1.020310] 0x000000020000-0x000000180000 : "u-boot"
[ 1.026742] 0x000000180000-0x0000001c0000 : "u-boot-env"
[ 1.033681] 0x0000001c0000-0x000004080000 : "ubi1"
[ 1.040989] 0x000004080000-0x000007f40000 : "ubi2"
[ 1.048086] 0x000007f40000-0x000007f80000 : "reserved"
[ 1.055900] fsl-dspi 4002d000.dspi1: DMA mask not set
[ 1.061773] ------------[ cut here ]------------
[ 1.066519] WARNING: CPU: 0 PID: 1 at ../include/linux/dma-mapping.h:516 dspi_probe+0x888/0x8e8
[ 1.075391] Modules linked in:
[ 1.078604] CPU: 0 PID: 1 Comm: swapper Not tainted 4.18.0-rc6-00011-g12be1e1a09c8 #394
[ 1.086672] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
[ 1.093219] Backtrace:
[ 1.095762] [<8010c580>] (dump_backtrace) from [<8010c848>] (show_stack+0x18/0x1c)
[ 1.103484] r7:00000009 r6:00000000 r5:80808bfc r4:00000000
[ 1.109300] [<8010c830>] (show_stack) from [<8062f28c>] (dump_stack+0x24/0x28)
[ 1.116620] [<8062f268>] (dump_stack) from [<8011bf50>] (__warn+0x100/0x118)
[ 1.123817] [<8011be50>] (__warn) from [<8011c088>] (warn_slowpath_null+0x48/0x50)
[ 1.131551] r8:868b4a10 r7:86ba8af8 r6:80494cf0 r5:00000204 r4:80808bfc
[ 1.138399] [<8011c040>] (warn_slowpath_null) from [<80494cf0>] (dspi_probe+0x888/0x8e8)
[ 1.146571] r6:868b4a00 r5:80a03048 r4:86ba8800
[ 1.151329] [<80494468>] (dspi_probe) from [<8042ccf8>] (platform_drv_probe+0x74/0xac)
[ 1.159408] r10:00000000 r9:00000000 r8:80a229a4 r7:80a4d5f0 r6:80a229a4 r5:868b4a10
[ 1.167310] r4:00000000
[ 1.169990] [<8042cc84>] (platform_drv_probe) from [<8042b064>] (driver_probe_device+0x2bc/0x334)
[ 1.179021] r7:80a4d5f0 r6:00000000 r5:80a4d5ec r4:868b4a10
[ 1.184764] [<8042ada8>] (driver_probe_device) from [<8042b1c0>] (__driver_attach+0xe4/0xe8)
[ 1.193353] r10:8092b838 r9:80a03048 r8:00000000 r7:80a03048 r6:868b4a44 r5:80a229a4
[ 1.201326] r4:868b4a10 r3:00000000
[ 1.204981] [<8042b0dc>] (__driver_attach) from [<804290f8>] (bus_for_each_dev+0x70/0xbc)
[ 1.213306] r7:80a03048 r6:8042b0dc r5:80a229a4 r4:00000000
[ 1.219114] [<80429088>] (bus_for_each_dev) from [<8042a93c>] (driver_attach+0x24/0x28)
[ 1.227199] r7:00000000 r6:80a1e5d8 r5:86b9f600 r4:80a229a4
[ 1.233002] [<8042a918>] (driver_attach) from [<8042a3b8>] (bus_add_driver+0x1a0/0x218)
[ 1.241175] [<8042a218>] (bus_add_driver) from [<8042bb9c>] (driver_register+0x80/0x118)
[ 1.249418] r7:8091e158 r6:ffffe000 r5:80934e7c r4:80a229a4
[ 1.255157] [<8042bb1c>] (driver_register) from [<8042cc38>] (__platform_driver_register+0x48/0x50)
[ 1.264341] r5:80934e7c r4:80a30440
[ 1.268005] [<8042cbf0>] (__platform_driver_register) from [<8091e174>] (fsl_dspi_driver_init+0x1c/0x20)
[ 1.277655] [<8091e158>] (fsl_dspi_driver_init) from [<80102630>] (do_one_initcall+0x5c/0x1a4)
[ 1.286455] [<801025d4>] (do_one_initcall) from [<80900f18>] (kernel_init_freeable+0x148/0x1e4)
[ 1.295318] r9:00000007 r8:80a30440 r7:8092b830 r6:80a30440 r5:80934e7c r4:8088ede8
[ 1.303234] [<80900dd0>] (kernel_init_freeable) from [<80643f90>] (kernel_init+0x10/0x118)
[ 1.311662] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80643f80
[ 1.319624] r4:00000000
[ 1.322233] [<80643f80>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 1.329938] Exception stack(0x86843fb0 to 0x86843ff8)
[ 1.335054] 3fa0: 00000000 00000000 00000000 00000000
[ 1.343378] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1.351699] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 1.358447] r5:80643f80 r4:00000000
[ 1.362091] ---[ end trace 14801d0875acd9ff ]---
[ 1.366776] fsl-dspi 4002d000.dspi1: coherent DMA mask is unset
[ 1.372904] fsl-dspi 4002d000.dspi1: can't get dma channels
[ 1.378837] fsl-dspi: probe of 4002d000.dspi1 failed with error -12
[ 1.386400] libphy: Fixed MDIO Bus: probed
[ 1.393539] fec 400d1000.ethernet: DMA mask not set
[ 1.399380] ------------[ cut here ]------------
[ 1.404130] WARNING: CPU: 0 PID: 1 at ../include/linux/dma-mapping.h:516 fec_probe+0x10ec/0x14d4
[ 1.413096] Modules linked in:
[ 1.416241] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.18.0-rc6-00011-g12be1e1a09c8 #394
[ 1.425771] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
[ 1.432326] Backtrace:
[ 1.434871] [<8010c580>] (dump_backtrace) from [<8010c848>] (show_stack+0x18/0x1c)
[ 1.442588] r7:00000009 r6:00000000 r5:80808bfc r4:00000000
[ 1.448412] [<8010c830>] (show_stack) from [<8062f28c>] (dump_stack+0x24/0x28)
[ 1.455730] [<8062f268>] (dump_stack) from [<8011bf50>] (__warn+0x100/0x118)
[ 1.462928] [<8011be50>] (__warn) from [<8011c088>] (warn_slowpath_null+0x48/0x50)
[ 1.470659] r8:00000000 r7:86983000 r6:804a6000 r5:00000204 r4:80808bfc
[ 1.477445] [<8011c040>] (warn_slowpath_null) from [<804a6000>] (fec_probe+0x10ec/0x14d4)
[ 1.485761] r6:807013d8 r5:86983028 r4:86832000
[ 1.490538] [<804a4f14>] (fec_probe) from [<8042ccf8>] (platform_drv_probe+0x74/0xac)
[ 1.498535] r10:00000000 r9:00000000 r8:80a23bb4 r7:80a4d5f0 r6:80a23bb4 r5:868d0c10
[ 1.506438] r4:00000000
[ 1.509116] [<8042cc84>] (platform_drv_probe) from [<8042b064>] (driver_probe_device+0x2bc/0x334)
[ 1.518068] r7:80a4d5f0 r6:00000000 r5:80a4d5ec r4:868d0c10
[ 1.523871] [<8042ada8>] (driver_probe_device) from [<8042b1c0>] (__driver_attach+0xe4/0xe8)
[ 1.532469] r10:8092b838 r9:80a03048 r8:00000000 r7:80a03048 r6:868d0c44 r5:80a23bb4
[ 1.540445] r4:868d0c10 r3:00000000
[ 1.544098] [<8042b0dc>] (__driver_attach) from [<804290f8>] (bus_for_each_dev+0x70/0xbc)
[ 1.552418] r7:80a03048 r6:8042b0dc r5:80a23bb4 r4:00000000
[ 1.558156] [<80429088>] (bus_for_each_dev) from [<8042a93c>] (driver_attach+0x24/0x28)
[ 1.566303] r7:00000000 r6:80a1e5d8 r5:86b9ff80 r4:80a23bb4
[ 1.572114] [<8042a918>] (driver_attach) from [<8042a3b8>] (bus_add_driver+0x1a0/0x218)
[ 1.580289] [<8042a218>] (bus_add_driver) from [<8042bb9c>] (driver_register+0x80/0x118)
[ 1.588529] r7:8091e514 r6:ffffe000 r5:80934e90 r4:80a23bb4
[ 1.594271] [<8042bb1c>] (driver_register) from [<8042cc38>] (__platform_driver_register+0x48/0x50)
[ 1.603458] r5:80934e90 r4:80a30440
[ 1.607118] [<8042cbf0>] (__platform_driver_register) from [<8091e530>] (fec_driver_init+0x1c/0x20)
[ 1.616344] [<8091e514>] (fec_driver_init) from [<80102630>] (do_one_initcall+0x5c/0x1a4)
[ 1.624703] [<801025d4>] (do_one_initcall) from [<80900f18>] (kernel_init_freeable+0x148/0x1e4)
[ 1.633570] r9:00000007 r8:80a30440 r7:8092b830 r6:80a30440 r5:80934e90 r4:8088ede8
[ 1.641487] [<80900dd0>] (kernel_init_freeable) from [<80643f90>] (kernel_init+0x10/0x118)
[ 1.649915] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80643f80
[ 1.657809] r4:00000000
[ 1.660472] [<80643f80>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 1.668111] Exception stack(0x86843fb0 to 0x86843ff8)
[ 1.673291] 3fa0: 00000000 00000000 00000000 00000000
[ 1.681623] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1.689951] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 1.696628] r5:80643f80 r4:00000000
[ 1.700309] ---[ end trace 14801d0875acda00 ]---
[ 1.705007] fec 400d1000.ethernet: coherent DMA mask is unset
[ 1.710888] ------------[ cut here ]------------
[ 1.715590] WARNING: CPU: 0 PID: 1 at ../include/linux/dma-mapping.h:516 dmam_alloc_coherent+0x140/0x160
[ 1.725197] Modules linked in:
[ 1.728401] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.18.0-rc6-00011-g12be1e1a09c8 #394
[ 1.737868] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
[ 1.744416] Backtrace:
[ 1.746951] [<8010c580>] (dump_backtrace) from [<8010c848>] (show_stack+0x18/0x1c)
[ 1.754663] r7:00000009 r6:00000000 r5:80808bfc r4:00000000
[ 1.760484] [<8010c830>] (show_stack) from [<8062f28c>] (dump_stack+0x24/0x28)
[ 1.767799] [<8062f268>] (dump_stack) from [<8011bf50>] (__warn+0x100/0x118)
[ 1.774990] [<8011be50>] (__warn) from [<8011c088>] (warn_slowpath_null+0x48/0x50)
[ 1.782713] r8:00001000 r7:807013d8 r6:801563a0 r5:00000204 r4:80808bfc
[ 1.789566] [<8011c040>] (warn_slowpath_null) from [<801563a0>] (dmam_alloc_coherent+0x140/0x160)
[ 1.798592] r6:86b96b10 r5:80a03048 r4:868d0c10
[ 1.803289] [<80156260>] (dmam_alloc_coherent) from [<804a5a38>] (fec_probe+0xb24/0x14d4)
[ 1.811619] r10:86eef3e8 r9:868d0c00 r8:80a4e574 r7:80a03048 r6:00001000 r5:868d0c10
[ 1.819588] r4:86832000
[ 1.822211] [<804a4f14>] (fec_probe) from [<8042ccf8>] (platform_drv_probe+0x74/0xac)
[ 1.830188] r10:00000000 r9:00000000 r8:80a23bb4 r7:80a4d5f0 r6:80a23bb4 r5:868d0c10
[ 1.838088] r4:00000000
[ 1.840757] [<8042cc84>] (platform_drv_probe) from [<8042b064>] (driver_probe_device+0x2bc/0x334)
[ 1.849785] r7:80a4d5f0 r6:00000000 r5:80a4d5ec r4:868d0c10
[ 1.855528] [<8042ada8>] (driver_probe_device) from [<8042b1c0>] (__driver_attach+0xe4/0xe8)
[ 1.864116] r10:8092b838 r9:80a03048 r8:00000000 r7:80a03048 r6:868d0c44 r5:80a23bb4
[ 1.872088] r4:868d0c10 r3:00000000
[ 1.875742] [<8042b0dc>] (__driver_attach) from [<804290f8>] (bus_for_each_dev+0x70/0xbc)
[ 1.884059] r7:80a03048 r6:8042b0dc r5:80a23bb4 r4:00000000
[ 1.889864] [<80429088>] (bus_for_each_dev) from [<8042a93c>] (driver_attach+0x24/0x28)
[ 1.897954] r7:00000000 r6:80a1e5d8 r5:86b9ff80 r4:80a23bb4
[ 1.903752] [<8042a918>] (driver_attach) from [<8042a3b8>] (bus_add_driver+0x1a0/0x218)
[ 1.911930] [<8042a218>] (bus_add_driver) from [<8042bb9c>] (driver_register+0x80/0x118)
[ 1.920172] r7:8091e514 r6:ffffe000 r5:80934e90 r4:80a23bb4
[ 1.925910] [<8042bb1c>] (driver_register) from [<8042cc38>] (__platform_driver_register+0x48/0x50)
[ 1.935095] r5:80934e90 r4:80a30440
[ 1.938829] [<8042cbf0>] (__platform_driver_register) from [<8091e530>] (fec_driver_init+0x1c/0x20)
[ 1.947981] [<8091e514>] (fec_driver_init) from [<80102630>] (do_one_initcall+0x5c/0x1a4)
[ 1.956325] [<801025d4>] (do_one_initcall) from [<80900f18>] (kernel_init_freeable+0x148/0x1e4)
[ 1.965188] r9:00000007 r8:80a30440 r7:8092b830 r6:80a30440 r5:80934e90 r4:8088ede8
[ 1.973100] [<80900dd0>] (kernel_init_freeable) from [<80643f90>] (kernel_init+0x10/0x118)
[ 1.981522] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80643f80
[ 1.989488] r4:00000000
[ 1.992091] [<80643f80>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 1.999794] Exception stack(0x86843fb0 to 0x86843ff8)
[ 2.004905] 3fa0: 00000000 00000000 00000000 00000000
[ 2.013226] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.021557] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 2.028298] r5:80643f80 r4:00000000
[ 2.031921] ---[ end trace 14801d0875acda01 ]---
[ 2.036594] fec 400d1000.ethernet: coherent DMA mask is unset
[ 2.042838] fec: probe of 400d1000.ethernet failed with error -12
[ 2.049422] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.056777] usbcore: registered new interface driver usb-storage
[ 2.063449] usbcore: registered new interface driver usbserial_generic
[ 2.070346] usbserial: USB Serial support registered for generic
[ 2.076580] usbcore: registered new interface driver ftdi_sio
[ 2.082664] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 2.090332] usbcore: registered new interface driver pl2303
[ 2.096124] usbserial: USB Serial support registered for pl2303
[ 2.104021] usbmisc_imx 40034800.usb: DMA mask not set
[ 2.109963] usbmisc_imx 400b4800.usb: DMA mask not set
[ 2.116227] imx_usb 40034000.usb: DMA mask not set
[ 2.125897] ------------[ cut here ]------------
[ 2.130757] WARNING: CPU: 0 PID: 1 at ../include/linux/dma-mapping.h:516 dma_pool_alloc+0x260/0x268
[ 2.139958] Modules linked in:
[ 2.143098] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.18.0-rc6-00011-g12be1e1a09c8 #394
[ 2.152627] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
[ 2.159183] Backtrace:
[ 2.161722] [<8010c580>] (dump_backtrace) from [<8010c848>] (show_stack+0x18/0x1c)
[ 2.169446] r7:00000009 r6:00000000 r5:80808bfc r4:00000000
[ 2.175200] [<8010c830>] (show_stack) from [<8062f28c>] (dump_stack+0x24/0x28)
[ 2.182586] [<8062f268>] (dump_stack) from [<8011bf50>] (__warn+0x100/0x118)
[ 2.189783] [<8011be50>] (__warn) from [<8011c088>] (warn_slowpath_null+0x48/0x50)
[ 2.197434] r8:868cc210 r7:006080c0 r6:801d7fc0 r5:00000204 r4:80808bfc
[ 2.204273] [<8011c040>] (warn_slowpath_null) from [<801d7fc0>] (dma_pool_alloc+0x260/0x268)
[ 2.212863] r6:80a03048 r5:86b96ac0 r4:86b96b80
[ 2.217567] [<801d7d60>] (dma_pool_alloc) from [<804dda7c>] (ci_hdrc_gadget_init+0x2a0/0x3e8)
[ 2.226241] r10:00000064 r9:00000000 r8:86982484 r7:00000000 r6:86982010 r5:00000000
[ 2.234208] r4:86982010
[ 2.236818] [<804dd7dc>] (ci_hdrc_gadget_init) from [<804d9fc4>] (ci_hdrc_probe+0x610/0x7f4)
[ 2.245411] r10:00000000 r9:00000000 r8:868c2510 r7:86b9dc10 r6:86b9dc00 r5:86983010
[ 2.253381] r4:86982010
[ 2.255999] [<804d99b4>] (ci_hdrc_probe) from [<8042ccf8>] (platform_drv_probe+0x74/0xac)
[ 2.264328] r10:00000000 r9:00000000 r8:80a28120 r7:80a4d5f0 r6:80a28120 r5:86b9dc10
[ 2.272298] r4:00000000
[ 2.274914] [<8042cc84>] (platform_drv_probe) from [<8042b064>] (driver_probe_device+0x2bc/0x334)
[ 2.283934] r7:80a4d5f0 r6:00000000 r5:80a4d5ec r4:86b9dc10
[ 2.289741] [<8042ada8>] (driver_probe_device) from [<8042b264>] (__device_attach_driver+0xa0/0xd4)
[ 2.298949] r10:00000000 r9:80a4d5c8 r8:00000001 r7:8042b1c4 r6:86b9dc10 r5:86843c04
[ 2.306847] r4:80a28120 r3:00000000
[ 2.310559] [<8042b1c4>] (__device_attach_driver) from [<804291e4>] (bus_for_each_drv+0x7c/0xc0)
[ 2.319500] r7:8042b1c4 r6:80a03048 r5:86843c04 r4:00000000
[ 2.325245] [<80429168>] (bus_for_each_drv) from [<8042ac80>] (__device_attach+0xd8/0x140)
[ 2.333654] r7:80a03048 r6:86b9dc44 r5:80a03048 r4:86b9dc10
[ 2.339462] [<8042aba8>] (__device_attach) from [<8042b2e4>] (device_initial_probe+0x14/0x18)
[ 2.348073] r8:86b9dc10 r7:80a03048 r6:80a1e5d8 r5:86b9dc10 r4:86b9dc18
[ 2.354924] [<8042b2d0>] (device_initial_probe) from [<8042a110>] (bus_probe_device+0x8c/0x94)
[ 2.363700] [<8042a084>] (bus_probe_device) from [<80428124>] (device_add+0x39c/0x5bc)
[ 2.371771] r7:80a03048 r6:00000000 r5:868cc210 r4:86b9dc18
[ 2.377508] [<80427d88>] (device_add) from [<8042ca14>] (platform_device_add+0x110/0x238)
[ 2.385838] r10:86eec848 r9:86b9dc10 r8:80a08a68 r7:80a08a48 r6:86b9dc00 r5:86b968a0
[ 2.393807] r4:00000002
[ 2.396426] [<8042c904>] (platform_device_add) from [<804da568>] (ci_hdrc_add_device+0x3c0/0x4a4)
[ 2.405451] r9:86b9dc00 r8:00000002 r7:868ca200 r6:868cc210 r5:00000000 r4:86843d20
[ 2.413364] [<804da1a8>] (ci_hdrc_add_device) from [<804df8c4>] (ci_hdrc_imx_probe+0x278/0x384)
[ 2.422230] r10:86eec848 r9:86b96710 r8:86b96710 r7:80a03048 r6:868cc200 r5:868cc210
[ 2.430202] r4:00000000
[ 2.432813] [<804df64c>] (ci_hdrc_imx_probe) from [<8042ccf8>] (platform_drv_probe+0x74/0xac)
[ 2.441491] r10:00000000 r9:00000000 r8:80a28400 r7:80a4d5f0 r6:80a28400 r5:868cc210
[ 2.449461] r4:00000000
[ 2.452073] [<8042cc84>] (platform_drv_probe) from [<8042b064>] (driver_probe_device+0x2bc/0x334)
[ 2.461088] r7:80a4d5f0 r6:00000000 r5:80a4d5ec r4:868cc210
[ 2.466826] [<8042ada8>] (driver_probe_device) from [<8042b1c0>] (__driver_attach+0xe4/0xe8)
[ 2.475415] r10:8092b838 r9:80a03048 r8:00000000 r7:80a03048 r6:868cc244 r5:80a28400
[ 2.483390] r4:868cc210 r3:00000000
[ 2.487042] [<8042b0dc>] (__driver_attach) from [<804290f8>] (bus_for_each_dev+0x70/0xbc)
[ 2.495369] r7:80a03048 r6:8042b0dc r5:80a28400 r4:00000000
[ 2.501175] [<80429088>] (bus_for_each_dev) from [<8042a93c>] (driver_attach+0x24/0x28)
[ 2.509334] r7:00000000 r6:80a1e5d8 r5:86b93900 r4:80a28400
[ 2.515072] [<8042a918>] (driver_attach) from [<8042a3b8>] (bus_add_driver+0x1a0/0x218)
[ 2.523234] [<8042a218>] (bus_add_driver) from [<8042bb9c>] (driver_register+0x80/0x118)
[ 2.531479] r7:8091eab8 r6:ffffe000 r5:80934ec4 r4:80a28400
[ 2.537218] [<8042bb1c>] (driver_register) from [<8042cc38>] (__platform_driver_register+0x48/0x50)
[ 2.546403] r5:80934ec4 r4:80a30440
[ 2.550131] [<8042cbf0>] (__platform_driver_register) from [<8091ead4>] (ci_hdrc_imx_driver_init+0x1c/0x20)
[ 2.560058] [<8091eab8>] (ci_hdrc_imx_driver_init) from [<80102630>] (do_one_initcall+0x5c/0x1a4)
[ 2.569118] [<801025d4>] (do_one_initcall) from [<80900f18>] (kernel_init_freeable+0x148/0x1e4)
[ 2.577913] r9:00000007 r8:80a30440 r7:8092b830 r6:80a30440 r5:80934ec4 r4:8088ede8
[ 2.585820] [<80900dd0>] (kernel_init_freeable) from [<80643f90>] (kernel_init+0x10/0x118)
[ 2.594244] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80643f80
[ 2.602211] r4:00000000
[ 2.604815] [<80643f80>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 2.612518] Exception stack(0x86843fb0 to 0x86843ff8)
[ 2.617636] 3fa0: 00000000 00000000 00000000 00000000
[ 2.625959] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.634280] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 2.641027] r5:80643f80 r4:00000000
[ 2.644650] ---[ end trace 14801d0875acda02 ]---
[ 2.649399] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.655150] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.660965] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.666703] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.672510] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.678329] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.684066] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.689871] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.695603] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.701405] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.707143] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.712955] imx_usb 40034000.usb: coherent DMA mask is unset
[ 2.718898] ci_hdrc: probe of ci_hdrc.0 failed with error -12
[ 2.725319] imx_usb 400b4000.usb: DMA mask not set
[ 2.732100] snvs_rtc 400a7000.snvs:snvs-rtc-lp: DMA mask not set
[ 2.739771] snvs_rtc 400a7000.snvs:snvs-rtc-lp: rtc core: registered 400a7000.snvs:snvs-rtc-lp as rtc0
[ 2.749684] i2c /dev entries driver
[ 2.755275] syscon-reboot syscon-reboot: DMA mask not set
[ 2.762020] iio_hwmon iio-hwmon: DMA mask not set
[ 2.767519] imx2-wdt 4003e000.wdog: DMA mask not set
[ 2.774339] imx2-wdt 4003e000.wdog: timeout 60 sec (nowayout=0)
[ 2.781955] sdhci: Secure Digital Host Controller Interface driver
[ 2.788340] sdhci: Copyright(c) Pierre Ossman
[ 2.792760] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.799477] sdhci-esdhc-imx 400b2000.esdhc: DMA mask not set
[ 2.805825] sdhci-esdhc-imx 400b2000.esdhc: Got CD GPIO
[ 2.840559] mmc0: SDHCI controller on 400b2000.esdhc [400b2000.esdhc] using ADMA
[ 2.850817] vf610-adc 4003b000.adc: DMA mask not set
[ 2.862460] vf610-adc 400bb000.adc: DMA mask not set
[ 2.873018] vf610-ocotp 400a5000.ocotp: DMA mask not set
[ 2.881315] NET: Registered protocol family 17
[ 2.886240] Key type dns_resolver registered
[ 2.891125] Registering SWP/SWPB emulation handler
[ 2.899162] registered taskstats version 1
[ 2.903419] Loading compiled-in X.509 certificates
[ 2.913697] VCC_USB[1-4]: supplied by 5V
[ 2.924686] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 2.929825] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
[ 2.938318] imx_usb 400b4000.usb: coherent DMA mask is unset
[ 2.944130] ci_hdrc ci_hdrc.1: can't setup: -12
[ 2.948981] ci_hdrc ci_hdrc.1: USB bus 1 deregistered
[ 2.954332] ci_hdrc ci_hdrc.1: can't start host role
[ 2.959807] ci_hdrc: probe of ci_hdrc.1 failed with error -12
[ 2.969131] snvs_rtc 400a7000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01 00:00:00 UTC (0)
[ 15.448694] +V3.3: disabling
[ 15.451677] 5V: disabling
[ 15.454342] VCC_USB[1-4]: disabling
[ 15.458477] fsl-edma 40018000.dma-controller: coherent DMA mask is unset
[ 15.465284] fsl-lpuart 40027000.serial: Cannot prepare cyclic DMA
[ 15.472086] Root-NFS: no NFS server address
[ 15.476359] VFS: Unable to mount root fs via NFS, trying floppy.
[ 15.484228] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[ 15.491664] Please append a correct "root=" boot option; here are the available partitions:
[ 15.500188] 0100 16384 ram0
[ 15.500200] (driver?)
[ 15.506406] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[ 15.514747] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) ]---

[unhandled content-type:application/octet-stream]
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