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

From: Krzysztof Kozlowski
Date: Fri Jul 27 2018 - 09:12:04 EST


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@xxxxxxx>
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@xxxxxxxx>
[ 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) ]---

Attachment: defconfig
Description: Binary data