NFS Hangs with linux 4.9.166 on IMX6Q

[alexisfronteau]

Hi, 

I have a trouble to boot in NFS a linux 4.9.166 on an IMX6Q, it hangs forever after this following lines :

[12.193345] Sending DHCP requests ., OK
[ 12.273188] IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.194
[ 12.281050] IP-Config: Complete:
[ 12.284435] device=eth0, hwaddr=00:14:2d:49:e7:09, ipaddr=192.168.1.194, mask=255.255.255.0, gw=192.168.1.1
[ 12.294783] host=192.168.1.194, domain=imajing, nis-domain=(none)
[ 12.301425] bootserver=0.0.0.0, rootserver=192.168.1.211, rootpath= nameserver0=192.168.1.1

The configuration that I use work with a linux 3.14.52, I have done few changements to work with the new kernel version but the nfs part is still the same. Do I miss settings to add to the configuration ? 

Thanks

[shivanipatel]

Hi, Alexis Fronteau‌

Please refer this document to boot the board over NFS.

I have tried the Linux kernel 4.9.166 from this link and was able to boot the board over NFS.

Let me know if you are still facing the error with the above information.

Kindly share your steps to setup the NFS and error logs as well.

Hope this information will be useful to you.

Regards,

Shivani

[alexisfronteau]

Hi, thanks for your reply.

In fact, I am building my own kernel with buildroot with based on the apalis-imx6q defconfig. I was able to connect to my board in tftp/nfs when I used linux 3.14.52 (that I also built on my own with buildroot). So, I don't think the problem is on the server part of the nfs connection. The boot of the card processor give me that : 

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.166 (alexis@Fronteau-Ubuntu) (gcc version 5.4.0 (Buildroot 2017.02.1-00152-gabdcf8fa6-dirty) ) #8 SMP Fri May 31 10:20:42 CEST 2019
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt:Machine model: Imajbox W with Apalis module
[ 0.000000] bootconsole [earlycon0] enabled
[ 0.000000] Reserved memory: created CMA memory pool at 0x38000000, size 320 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] percpu: Embedded 14 pages/cpu @bf6f4000 s25612 r8192 d23540 u57344
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: enable_wait_mode=off vmalloc=400M ip=dhcp root=/dev/nfs nfsroot=192.168.1.211:/home/data/Workspace/ImajboxV2/Software/PlatformW/trunk/devenv/new_kernel/nfsroot rw fec_mac=00:14
:2d:49:e7:09 consoleblank=0 no_console_suspend=1 console=ttymxc0,115200n8 earlyprintk
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 698736K/1048576K available (8192K kernel code, 365K rwdata, 1888K rodata, 1024K init, 413K bss, 22160K reserved, 327680K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xc0800000 - 0xff800000 (1008 MB)
[ 0.000000] lowmem : 0x80000000 - 0xc0000000 (1024 MB)
[ 0.000000] pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
[ 0.000000] modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
[ 0.000000] .text : 0x80008000 - 0x80900000 (9184 kB)
[ 0.000000] .init : 0x80b00000 - 0x80c00000 (1024 kB)
[ 0.000000] .data : 0x80c00000 - 0x80c5b760 ( 366 kB)
[ 0.000000] .bss : 0x80c5b760 - 0x80cc2dac ( 414 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: DT/platform modifies aux control register: 0x32070000 -> 0x32470000
[ 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 every 715827882841ns
[ 0.008297] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns
[ 0.019641] Console: colour dummy device 80x30
[ 0.024204] Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
[ 0.034511] pid_max: default: 32768 minimum: 301
[ 0.039315] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.046048] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.053850] CPU: Testing write buffer coherency: ok
[ 0.058855] CPU0: Spectre v2: using BPIALL workaround
[ 0.064356] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.070176] Setting up static identity map for 0x10100000 - 0x10100058
[ 0.079009] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.079015] CPU1: Spectre v2: using BPIALL workaround
[ 0.090821] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.090827] CPU2: Spectre v2: using BPIALL workaround
[ 0.102610] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.102616] CPU3: Spectre v2: using BPIALL workaround
[ 0.113623] Brought up 4 CPUs
[ 0.116689] SMP: Total of 4 processors activated (24.00 BogoMIPS).
[ 0.122970] CPU: All CPU(s) started in SVC mode.
[ 0.128581] devtmpfs: initialized
[ 0.146281] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.154375] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.164338] futex hash table entries: 1024 (order: 4, 65536 bytes)
[ 0.187204] pinctrl core: initialized pinctrl subsystem
[ 0.193690] NET: Registered protocol family 16
[ 0.205784] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.243392] cpuidle: using governor menu
[ 0.247622] CPU identified as i.MX6Q, silicon rev 1.5
[ 0.274203] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.282317] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.288697] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/leds_platformw
[ 0.300051] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/gpssensor
[ 0.310960] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/imusensor
[ 0.321868] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/smartbattery
[ 0.333035] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/imajboxcharger
[ 0.344375] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/video
[ 0.354934] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/pps
[ 0.365319] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/keys_platformw
[ 0.376659] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/platformwgpio
[ 0.387911] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/powercontrol
[ 0.399078] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/pwrregulator
[ 0.410244] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/uart1
[ 0.420802] imx6q-pinctrl 20e0000.iomuxc: no fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/uart2
[ 0.431609] imx6q-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.440001] imx-gpc 20dc000.gpc: no fsl,ldo-bypass found!
[ 0.445647] imx-gpc 20dc000.gpc: Registered imx-gpc
[ 0.475620] vgaarb: loaded
[ 0.478739] SCSI subsystem initialized
[ 0.483037] usbcore: registered new interface driver usbfs
[ 0.488709] usbcore: registered new interface driver hub
[ 0.494216] usbcore: registered new device driver usb
[ 0.500504] i2c i2c-1: IMX I2C adapter registered
[ 0.505337] i2c i2c-1: can't use DMA, using PIO instead.
[ 0.514051] stmpe-i2c 2-0041: stmpe811 detected, chip id: 0x811
[ 0.604351] i2c i2c-2: IMX I2C adapter registered
[ 0.609163] i2c i2c-2: can't use DMA, using PIO instead.
[ 0.615004] i2c i2c-3: IMX I2C adapter registered
[ 0.619816] i2c i2c-3: can't use DMA, using PIO instead.
[ 0.625397] Linux video capture interface: v2.00
[ 0.630150] pps_core: LinuxPPS API ver. 1 registered
[ 0.635229] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.644501] PTP clock support registered
[ 0.673452] imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
[ 0.703443] imx-ipuv3 2800000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
[ 0.711943] mxc_mipi_csi2 21dc000.mipi_csi: i.MX MIPI CSI2 driver probed ipu0 csi0
[ 0.719645] mxc_mipi_csi2 21dc000.mipi_csi: i.MX MIPI CSI2 dphy version is 0x3130302a
[ 0.727672] MIPI CSI2 driver module loaded
[ 0.733094] clocksource: Switched to clocksource mxc_timer1
[ 0.738901] VFS: Disk quotas dquot_6.6.0
[ 0.742974] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.760565] NET: Registered protocol family 2
[ 0.765658] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.772892] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.779588] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.786221] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.792275] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.798918] NET: Registered protocol family 1
[ 0.803919] RPC: Registered named UNIX socket transport module.
[ 0.809944] RPC: Registered udp transport module.
[ 0.814773] RPC: Registered tcp transport module.
[ 0.819576] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.826792] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 0.836542] Bus freq driver module loaded
[ 0.842468] workingset: timestamp_bits=30 max_order=18 bucket_order=0
[ 0.855730] NFS: Registering the id_resolver key type
[ 0.860897] Key type id_resolver registered
[ 0.865236] Key type id_legacy registered
[ 0.869355] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.876815] ntfs: driver 2.1.32 [Flags: R/W].
[ 0.881578] fuse init (API version 7.26)
[ 0.892693] io scheduler noop registered
[ 0.896749] io scheduler deadline registered
[ 0.901291] io scheduler cfq registered (default)
[ 0.907126] imx-pcie 1ffc000.pcie: no reserved region node.
[ 0.912863] 1ffc000.pcie supply epdev_on not found, using dummy regulator
[ 0.920075] OF: PCI: host bridge /soc/pcie@0x01000000 ranges:
[ 0.925962] OF: PCI: IO 0x01f80000..0x01f8ffff -> 0x00000000
[ 0.931994] OF: PCI: MEM 0x01000000..0x01efffff -> 0x01000000
[ 1.072893] imx-pcie 1ffc000.pcie: Link: Gen2 disabled
[ 1.078150] imx-pcie 1ffc000.pcie: Link up, Gen1
[ 1.083256] imx-pcie 1ffc000.pcie: PCI host bridge to bus 0000:00
[ 1.089461] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.095070] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 1.101355] pci_bus 0000:00: root bus resource [mem 0x01000000-0x01efffff]
[ 1.108754] PCI: bus0: Fast back to back transfers disabled
[ 1.143217] PCI: bus1: Fast back to back transfers disabled
[ 1.149074] pci 0000:00:00.0: BAR 0: assigned [mem 0x01000000-0x010fffff]
[ 1.156000] pci 0000:00:00.0: BAR 8: assigned [mem 0x01100000-0x011fffff]
[ 1.162898] pci 0000:00:00.0: BAR 6: assigned [mem 0x01200000-0x0120ffff pref]
[ 1.170250] pci 0000:01:00.0: BAR 0: assigned [mem 0x01100000-0x0110ffff 64bit]
[ 1.177739] pci 0000:01:00.0: BAR 2: assigned [mem 0x01110000-0x01111fff 64bit]
[ 1.185228] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[ 1.190561] pci 0000:00:00.0: bridge window [mem 0x01100000-0x011fffff]
[ 1.197707] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt
[ 1.204799] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt
[ 1.211747] pci 0000:01:00.0: enabling device (0140 -> 0142)
[ 1.220993] imx-sdma 20ec000.sdma: no iram assigned, using external mem
[ 1.228068] imx-sdma 20ec000.sdma: loaded firmware 3.3
[ 1.238007] pfuze100-regulator 2-0008: Full layer: 1, Metal layer: 1
[ 1.245202] pfuze100-regulator 2-0008: FAB: 0, FIN: 0
[ 1.250358] pfuze100-regulator 2-0008: pfuze100 found.
[ 1.278292] imx6q-pinctrl 20e0000.iomuxc: unable to find group for node uart1grp-dtenoctlr
[ 1.286703] imx-uart: probe of 2020000.serial failed with error -22
[ 1.293343] imx6q-pinctrl 20e0000.iomuxc: unable to find group for node uart2grp-dtenoctlr
[ 1.301720] imx-uart: probe of 21e8000.serial failed with error -22
[ 1.308443] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 69, base_baud = 5000000) is a IMX
[ 1.317765] 21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 70, base_baud = 5000000) is a IMX
[ 1.327401] [drm] Initialized
[ 1.330881] [drm] Initialized vivante 1.0.0 20120216 on minor 0
[ 1.348165] brd: module loaded
[ 1.358685] loop: module loaded
[ 1.384957] ahci-imx 2200000.sata: fsl,transmit-level-mV not specified, using 00000024
[ 1.392988] ahci-imx 2200000.sata: fsl,transmit-boost-mdB not specified, using 00000480
[ 1.401142] ahci-imx 2200000.sata: fsl,transmit-atten-16ths not specified, using 00002000
[ 1.409447] ahci-imx 2200000.sata: fsl,receive-eq-mdB not specified, using 05000000
[ 1.420679] ahci-imx 2200000.sata: SSS flag set, parallel bus scan disabled
[ 1.427799] ahci-imx 2200000.sata: AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl platform mode
[ 1.436723] ahci-imx 2200000.sata: flags: ncq sntf stag pm led clo only pmp pio slum part ccc apst
[ 1.447333] scsi host0: ahci-imx
[ 1.450983] ata1: SATA max UDMA/133 mmio [mem 0x02200000-0x02203fff] port 0x100 irq 77
[ 1.460628] spi_imx 2008000.ecspi: probed
[ 1.465708] spi_imx 200c000.ecspi: probed
[ 1.470514] libphy: Fixed MDIO Bus: probed
[ 1.475144] vcan: Virtual CAN interface driver
[ 1.479689] CAN device driver interface
[ 1.484820] 2188000.ethernet supply phy not found, using dummy regulator
[ 1.503171] pps pps0: new PPS source ptp0
[ 1.508434] libphy: fec_enet_mii_bus: probed
[ 1.514518] fec 2188000.ethernet eth0: registered PHC device 0
[ 1.520820] usbcore: registered new interface driver asix
[ 1.526399] usbcore: registered new interface driver ax88179_178a
[ 1.532644] usbcore: registered new interface driver cdc_ether
[ 1.538642] usbcore: registered new interface driver net1080
[ 1.544457] usbcore: registered new interface driver cdc_subset
[ 1.550515] usbcore: registered new interface driver zaurus
[ 1.556268] usbcore: registered new interface driver cdc_ncm
[ 1.562028] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.568670] ehci-pci: EHCI PCI platform driver
[ 1.573277] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 1.578854] usbcore: registered new interface driver usb-storage
[ 1.585093] usbcore: registered new interface driver usbserial
[ 1.591063] usbcore: registered new interface driver usbserial_generic
[ 1.597749] usbserial: USB Serial support registered for generic
[ 1.603909] usbcore: registered new interface driver ftdi_sio
[ 1.609786] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1.617252] usbcore: registered new interface driver pl2303
[ 1.622958] usbserial: USB Serial support registered for pl2303
[ 1.630099] 2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
[ 1.638873] mousedev: PS/2 mouse device common for all mice
[ 1.654811] input: stmpe-ts as /devices/soc0/soc/2100000.aips-bus/21a4000.i2c/i2c-2/2-0041/stmpe-ts/input/input0
[ 1.666214] snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
[ 1.675152] i2c /dev entries driver
[ 1.680731] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 1.687267] sdhci: Secure Digital Host Controller Interface driver
[ 1.693571] sdhci: Copyright(c) Pierre Ossman
[ 1.698025] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.704766] sdhci-esdhc-imx 2198000.usdhc: could not get ultra high speed state, work on normal mode
[ 1.773132] mmc0: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
[ 1.786978] mxc_vpu 2040000.vpu_fsl: VPU initialized
[ 1.792498] mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
[ 1.801842] Galcore version 6.2.4.150331
[ 1.953282] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 1.960705] ata1.00: ATA-9: TS128GMTS400, O0918B, max UDMA/133
[ 1.966754] ata1.00: 250069680 sectors, multi 1: LBA48 NCQ (depth 31/32)
[ 1.974527] ata1.00: configured for UDMA/133
[ 1.979941] scsi 0:0:0:0: Direct-Access ATA TS128GMTS400 8B PQ: 0 ANSI: 5
[ 2.542326] imx6q-pinctrl 20e0000.iomuxc: unable to find group for node leds-platformw
[ 2.550384] leds-gpio: probe of leds failed with error -22
[ 2.557086] caam 2100000.caam: ERA source: CAAMVID.
[ 2.562113] caam 2100000.caam: AXI pipeline throttling enabled.
[ 2.567355] mmc0: new DDR MMC card at address 0001
[ 2.567969] mmcblk0: mmc0:0001 004GE0 3.69 GiB
[ 2.568290] mmcblk0boot0: mmc0:0001 004GE0 partition 1 2.00 MiB
[ 2.568563] mmcblk0boot1: mmc0:0001 004GE0 partition 2 2.00 MiB
[ 2.569870] mmcblk0: p1 p2 p3
[ 2.593865] caam 2100000.caam: device ID = 0x0a16010000000000 (Era 4)
[ 2.593865] job rings = 2, qi = 0
[ 2.606444] caam_jr 2101000.jr0: Entropy delay = 3200
[ 2.611632] caam_jr 2101000.jr0: Instantiated RNG4 SH0.
[ 2.617730] sd 0:0:0:0: [sda] 250069680 512-byte logical blocks: (128 GB/119 GiB)
[ 2.625639] sd 0:0:0:0: [sda] Write Protect is off
[ 2.630640] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 2.639950] sd 0:0:0:0: [sda] Optimal transfer size 0 bytes < PAGE_SIZE (4096 bytes)
[ 2.649882] sda: sda1
[ 2.653507] sd 0:0:0:0: [sda] Attached SCSI disk
[ 2.672392] caam_jr 2101000.jr0: Instantiated RNG4 SH1.
[ 2.684905] caam algorithms registered in /proc/crypto
[ 2.694075] caam_jr 2101000.jr0: registering rng-caam
[ 2.700313] caam-snvs 20cc000.caam-snvs: can't get snvs clock
[ 2.706239] caam-snvs 20cc000.caam-snvs: violation handlers armed - non-secure state
[ 2.714311] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.719967] usbcore: registered new interface driver usbhid
[ 2.725657] usbhid: USB HID core driver
[ 2.730671] random: fast init done
[ 2.739346] stmpe-adc stmpe-adc: Initialized
[ 2.744301] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 2.750288] NET: Registered protocol family 10
[ 2.755773] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 2.761341] NET: Registered protocol family 17
[ 2.766005] can: controller area network core (rev 20120528 abi 9)
[ 2.772479] NET: Registered protocol family 29
[ 2.777043] can: raw protocol (rev 20120528)
[ 2.781411] can: broadcast manager protocol (rev 20161123 t)
[ 2.787193] can: netlink gateway (rev 20130117) max_hops=1
[ 2.793129] Key type dns_resolver registered
[ 2.799650] cpu cpu0: Registered imx6q-cpufreq
[ 2.804269] Registering SWP/SWPB emulation handler
[ 2.820317] imx_thermal 2000000.aips-bus:tempmon: Extended Commercial CPU temperature grade - max:105C critical:105C passive:95C
[ 2.832861] imx6q-pinctrl 20e0000.iomuxc: unable to find group for node keys-platformw
[ 2.840953] gpio-keys: probe of gpio-keys failed with error -22
[ 2.847101] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-15 05:11:02 UTC (1228262)
[ 2.955658] Micrel KSZ9031 Gigabit PHY 2188000.ethernet-1:07: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=2188000.ethernet-1:07, irq=110)
[ 2.970399] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 11.921386] fec 2188000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[ 11.943235] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 11.973174] Sending DHCP requests ., OK
[ 12.053150] IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.194
[ 12.061011] IP-Config: Complete:
[ 12.064406] device=eth0, hwaddr=00:14:2d:49:e7:09, ipaddr=192.168.1.194, mask=255.255.255.0, gw=192.168.1.1
[ 12.074736] host=192.168.1.194, domain=imajing, nis-domain=(none)
[ 12.081379] bootserver=0.0.0.0, rootserver=192.168.1.211, rootpath= nameserver0=192.168.1.1

... then it hangs indefinitely, I can not be sure that is a NFS problem but when I used the old linux, it mount the NFS after this part.

[alexisfronteau · Accepted solution]

I found the problem, it was the uart configuraiton that was wrong, I have still problems but it is no longer concerning this issue. 

I'll close the discussion, thank you for your help Shivani Patel.