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Linux/AM4378: FAT-fs (sda1): FAT read failed (blocknr 2080) failed to unplug USB disk in ti-processor-sdk-linux-am437x-evm-05.02.00.10

Genius 13655 points
Part Number: AM4378

Tool/software: Linux

Hello Champs,

Customer designed his own AM4378 board, he used 'ti-processor-sdk-linux-am437x-evm-05.02.00.10' to debug mass storage function. He configured the kernel with tisdk_am437x-evm_defconfig. When the U disk is plugged in, it can be recognized and mounted, but when it is unplugged, it prompted below error.  

[ 238.524537] usb 3-1: USB disconnect, device number 2

[ 238.728225] blk_partition_remap: fail for partition 1
[ 238.733328] blk_partition_remap: fail for partition 1
[ 238.742197] blk_partition_remap: fail for partition 1
...
[ 240.549379] blk_partition_remap: fail for partition 1
[ 240.556637] blk_partition_remap: fail for partition 1
[ 240.561731] blk_partition_remap: fail for partition 1
[ 240.570346] FAT-fs (sda1): FAT read failed (blocknr 2080)

Then customer used the previous version SDK ti-processor-sdk-linux-am437x-evm-02.00.01.07 and also used the default kernel configuration, it did not prompt the above error, its log is below

root@am437x-evm:~# [ 139.858841] usb 1-1: new high-speed USB device number 3 using xhci-hcd
[ 140.005556] usb 1-1: New USB device found, idVendor=058f, idProduct=6387
[ 140.012328] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 140.019843] usb 1-1: Product: Mass Storage
[ 140.023966] usb 1-1: Manufacturer: Generic
[ 140.028078] usb 1-1: SerialNumber: 1090865F
[ 140.039171] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 140.052994] scsi host1: usb-storage 1-1:1.0
[ 141.061392] scsi 1:0:0:0: Direct-Access Generic Flash Disk 8.07 PQ: 0 ANSI: 4
[ 141.075046] sd 1:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB)
[ 141.092164] sd 1:0:0:0: [sda] Write Protect is off
[ 141.097799] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 141.127224] sda: sda1
[ 141.170531] sd 1:0:0:0: [sda] Attached SCSI removable disk
[ 141.665153] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

root@am437x-evm:~# [ 148.711544] usb 1-1: USB disconnect, device number 3

root@am437x-evm:~# 
root@am437x-evm:~# dmesg 
[ 139.858841] usb 1-1: new high-speed USB device number 3 using xhci-hcd
[ 140.005556] usb 1-1: New USB device found, idVendor=058f, idProduct=6387
[ 140.012328] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 140.019843] usb 1-1: Product: Mass Storage
[ 140.023966] usb 1-1: Manufacturer: Generic
[ 140.028078] usb 1-1: SerialNumber: 1090865F
[ 140.039171] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 140.052994] scsi host1: usb-storage 1-1:1.0
[ 141.061392] scsi 1:0:0:0: Direct-Access Generic Flash Disk 8.07 PQ: 0 ANSI: 4
[ 141.075046] sd 1:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB)
[ 141.092164] sd 1:0:0:0: [sda] Write Protect is off
[ 141.097003] sd 1:0:0:0: [sda] Mode Sense: 23 00 00 00
[ 141.097799] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 141.127224] sda: sda1
[ 141.170531] sd 1:0:0:0: [sda] Attached SCSI removable disk
[ 141.665153] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 148.711544] usb 1-1: USB disconnect, device number 3

Besides, he found that when using the same configuration ti-processor-sdk-linux-am437x-evm-05.02.00.10, the error is different when using USB3.0 interface and USB2.0 interface, please see attachment.

U-Boot 2018.01 (Dec 25 2018 - 20:58:55 +0800)

CPU  : AM437X-GP rev 1.2
usi enter __weak show_board_info
Model: TI AM437x Industrial Development Kit
DRAM:  1 GiB
Can't find PMIC:TPS62362
NAND:  0 MiB
MMC:   OMAP SD/MMC: 0
Net:   cpsw, usb_ether
Hit any key to stop autoboot:  2  1  0 
Booting from network ...
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
DHCP client bound to address 192.168.3.52 (98 ms)
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.3.50; our IP address is 192.168.3.52
Filename 'zImage'.
Load address: 0x82000000
Loading: *#################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #####
	 1.9 MiB/s
done
Bytes transferred = 3883520 (3b4200 hex)
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.3.50; our IP address is 192.168.3.52
Filename 'am437x-idk-evm.dtb'.
Load address: 0x88000000
Loading: *####
	 1.8 MiB/s
done
Bytes transferred = 47220 (b874 hex)
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 8fff1000, end 8ffff873 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.14.79-gbde58ab01e (leo@SRD-0000059.usish.com.cn) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #1 PREEMPT Mon Mar 11 15:23:30 CST 2019
[    0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: TI AM437x Industrial Development Kit
[    0.000000] Memory policy: Data cache writeback
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] cma: Reserved 48 MiB at 0xbd000000
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM437x ES1.2 (sgx neon)
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 260416
[    0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/nfs nfsroot=192.168.3.50:/home/leo/ti-processor-sdk-linux-am437x-evm-05.02.00.10/targetNFS,nolock rw ip=dhcp
[    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: 976256K/1048576K available (8192K kernel code, 329K rwdata, 2496K rodata, 1024K init, 268K bss, 23168K reserved, 49152K cma-reserved, 212992K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0900000   (9184 kB)
[    0.000000]       .init : 0xc0c00000 - 0xc0d00000   (1024 kB)
[    0.000000]       .data : 0xc0d00000 - 0xc0d52448   ( 330 kB)
[    0.000000]        .bss : 0xc0d52448 - 0xc0d9569c   ( 269 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Tasks RCU enabled.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000
[    0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000
[    0.000000] L2C-310 enabling early BRESP for Cortex-A9
[    0.000000] OMAP L2C310: ROM does not support power control setting
[    0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[    0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
[    0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000011] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000027] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000035] OMAP clocksource: timer1 at 24000000 Hz
[    0.000410] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[    0.000419] OMAP clocksource: 32k_counter at 32768 Hz
[    0.000776] Console: colour dummy device 80x30
[    0.000804] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[    0.000810] This ensures that you still see kernel messages. Please
[    0.000815] update your kernel commandline.
[    0.000839] Calibrating delay loop... 1993.93 BogoMIPS (lpj=9969664)
[    0.060144] pid_max: default: 32768 minimum: 301
[    0.060305] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.060328] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.061000] CPU: Testing write buffer coherency: ok
[    0.061056] CPU0: Spectre v2: using BPIALL workaround
[    0.061738] Setting up static identity map for 0x80100000 - 0x80100060
[    0.061878] Hierarchical SRCU implementation.
[    0.062197] EFI services will not be available.
[    0.063116] devtmpfs: initialized
[    0.070888] random: get_random_u32 called from bucket_table_alloc+0x8c/0x1ac with crng_init=0
[    0.071261] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.071546] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.071564] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.074796] pinctrl core: initialized pinctrl subsystem
[    0.075466] DMI not present or invalid.
[    0.075841] NET: Registered protocol family 16
[    0.077382] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.147592] cpuidle: using governor ladder
[    0.147630] cpuidle: using governor menu
[    0.152909] OMAP GPIO hardware version 0.1
[    0.162987] No ATAGs?
[    0.163012] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.163026] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.174742] edma 49000000.edma: TI EDMA DMA engine driver
[    0.175674] V3_3D: supplied by V24_0D
[    0.176013] VDD_COREREG: supplied by V24_0D
[    0.176290] VDD_CORE: supplied by VDD_COREREG
[    0.176540] V1_8DREG: supplied by V24_0D
[    0.176808] V1_8D: supplied by V1_8DREG
[    0.177088] V1_5DREG: supplied by V24_0D
[    0.177348] V1_5D: supplied by V1_5DREG
[    0.179836] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp@44000000/l4_wkup@44c00000/scm@210000/pinmux@800/my_i2c_0_pins_default, deferring probe
[    0.179893] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp@44000000/l4_wkup@44c00000/scm@210000/pinmux@800/my_i2c_1_pins_default, deferring probe
[    0.179933] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp@44000000/l4_wkup@44c00000/scm@210000/pinmux@800/my_i2c_2_pins_default, deferring probe
[    0.180038] media: Linux media interface: v0.10
[    0.180074] Linux video capture interface: v2.00
[    0.180355] pps_core: LinuxPPS API ver. 1 registered
[    0.180365] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.180386] PTP clock support registered
[    0.180417] EDAC MC: Ver: 3.0.0
[    0.180798] dmi: Firmware registration failed.
[    0.181146] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    0.181514] Advanced Linux Sound Architecture Driver Initialized.
[    0.182495] clocksource: Switched to clocksource timer1
[    0.189446] NET: Registered protocol family 2
[    0.190059] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.190123] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[    0.190339] TCP: Hash tables configured (established 8192 bind 8192)
[    0.190519] UDP hash table entries: 512 (order: 1, 8192 bytes)
[    0.190541] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
[    0.190698] NET: Registered protocol family 1
[    0.191090] RPC: Registered named UNIX socket transport module.
[    0.191101] RPC: Registered udp transport module.
[    0.191106] RPC: Registered tcp transport module.
[    0.191112] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.193057] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[    0.196375] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.197094] NFS: Registering the id_resolver key type
[    0.197131] Key type id_resolver registered
[    0.197138] Key type id_legacy registered
[    0.197177] ntfs: driver 2.1.32 [Flags: R/O].
[    0.199097] bounce: pool size: 64 pages
[    0.199177] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    0.199187] io scheduler noop registered
[    0.199194] io scheduler deadline registered
[    0.199378] io scheduler cfq registered (default)
[    0.199388] io scheduler mq-deadline registered
[    0.199395] io scheduler kyber registered
[    0.201306] pinctrl-single 44e10800.pinmux: 199 pins at pa f9e10800 size 796
[    0.243902] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
[    0.245970] omap8250 44e09000.serial: No clock speed specified: using default: 48000000
[    0.246602] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[    0.980716] console [ttyS0] enabled
[    0.985941] omap_rng 48310000.rng: Random Number Generator ver. 20
[    1.005020] brd: module loaded
[    1.016165] loop: module loaded
[    1.021281] spi spi1.0: not using DMA for McSPI (-19)
[    1.026725] spi spi1.2: not using DMA for McSPI (-19)
[    1.032458] spi spi2.0: not using DMA for McSPI (-19)
[    1.037763] spi spi2.1: not using DMA for McSPI (-19)
[    1.043472] spi spi3.0: not using DMA for McSPI (-19)
[    1.048701] spi spi3.1: not using DMA for McSPI (-19)
[    1.054427] spi spi4.0: not using DMA for McSPI (-19)
[    1.059667] spi spi4.1: not using DMA for McSPI (-19)
[    1.065392] spi spi5.0: not using DMA for McSPI (-19)
[    1.070630] spi spi5.1: not using DMA for McSPI (-19)
[    1.077646] m25p80 spi0.0: mx66l51235l (65536 Kbytes)
[    1.082827] 7 ofpart partitions found on MTD device spi0.0
[    1.088336] Creating 7 MTD partitions on "spi0.0":
[    1.093181] 0x000000000000-0x000000080000 : "QSPI.U_BOOT"
[    1.099496] 0x000000080000-0x000000100000 : "QSPI.U_BOOT.backup"
[    1.106269] 0x000000100000-0x000000110000 : "QSPI.U-BOOT-SPL_OS"
[    1.113033] 0x000000110000-0x000000120000 : "QSPI.U_BOOT_ENV"
[    1.119453] 0x000000120000-0x000000130000 : "QSPI.U-BOOT-ENV.backup"
[    1.126587] 0x000000130000-0x000000930000 : "QSPI.KERNEL"
[    1.132721] 0x000000930000-0x000004000000 : "QSPI.FILESYSTEM"
[    1.139795] libphy: Fixed MDIO Bus: probed
[    1.212554] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[    1.220254] davinci_mdio 4a101000.mdio: detected phy mask fffffffc
[    1.228437] libphy: 4a101000.mdio: probed
[    1.232482] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver Micrel KSZ9031 Gigabit PHY
[    1.242275] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver Micrel KSZ9031 Gigabit PHY
[    1.253030] cpsw 4a100000.ethernet: Detected MACID = c4:be:84:cc:79:9f
[    1.259682] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[    1.266153] cpsw 4a100000.ethernet: ALE Table size 1024
[    1.271444] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
[    1.279349] cpsw 4a100000.ethernet: cpsw: Detected MACID = c4:be:84:cc:79:a1
[    1.287558] i2c /dev entries driver
[    1.291483] IR NEC protocol handler initialized
[    1.296087] IR RC5(x/sz) protocol handler initialized
[    1.301160] IR RC6 protocol handler initialized
[    1.305720] IR JVC protocol handler initialized
[    1.310266] IR Sony protocol handler initialized
[    1.314909] IR SANYO protocol handler initialized
[    1.319629] IR Sharp protocol handler initialized
[    1.324358] IR MCE Keyboard/mouse protocol handler initialized
[    1.330212] IR XMP protocol handler initialized
[    1.336735] cpuidle: enable-method property 'ti,am4372' found operations
[    1.343948] sdhci: Secure Digital Host Controller Interface driver
[    1.350159] sdhci: Copyright(c) Pierre Ossman
[    1.355216] omap_hsmmc 48060000.mmc: Got CD GPIO
[    1.413721] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.425470] ledtrig-cpu: registered to indicate activity on CPUs
[    1.439205] NET: Registered protocol family 10
[    1.445187] Segment Routing with IPv6
[    1.448938] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    1.455570] NET: Registered protocol family 17
[    1.460319] Key type dns_resolver registered
[    1.464938] omap_voltage_late_init: Voltage driver support not added
[    1.503078] i2c i2c-0: Added multiplexed i2c bus 3
[    1.508229] i2c i2c-0: Added multiplexed i2c bus 4
[    1.513356] i2c i2c-0: Added multiplexed i2c bus 5
[    1.518403] i2c i2c-0: Added multiplexed i2c bus 6
[    1.523255] pca954x 0-0070: registered 4 multiplexed busses for I2C switch pca9546
[    1.530935] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 400 kHz
[    1.545712] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.556783] mmc0: new high speed SDHC card at address aaaa
[    1.563073] i2c i2c-1: Added multiplexed i2c bus 7
[    1.568438] mmcblk0: mmc0:aaaa SL08G 7.40 GiB 
[    1.573159] i2c i2c-1: Added multiplexed i2c bus 8
[    1.573582] i2c i2c-1: Added multiplexed i2c bus 9
[    1.573900] i2c i2c-1: Added multiplexed i2c bus 10
[    1.573912] pca954x 1-0070: registered 4 multiplexed busses for I2C switch pca9546
[    1.574436] pca954x 1-0071: probe failed
[    1.574575] omap_i2c 4802a000.i2c: bus 1 rev0.12 at 400 kHz
[    1.609614]  mmcblk0: p1 p2
[    1.613034] i2c i2c-2: Added multiplexed i2c bus 11
[    1.618810] i2c i2c-2: Added multiplexed i2c bus 12
[    1.624086] i2c i2c-2: Added multiplexed i2c bus 13
[    1.629224] i2c i2c-2: Added multiplexed i2c bus 14
[    1.634196] pca954x 2-0070: registered 4 multiplexed busses for I2C switch pca9546
[    1.642239] pca954x 2-0072: probe failed
[    1.646647] pca954x 2-0074: probe failed
[    1.650668] omap_i2c 4819c000.i2c: bus 2 rev0.12 at 400 kHz
[    1.656902] hctosys: unable to open rtc device (rtc0)
[    1.675658] net eth0: initializing cpsw version 1.15 (0)
[    1.787177] Micrel KSZ9031 Gigabit PHY 4a101000.mdio:00: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL)
[    1.806213] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    1.812705] net eth1: initializing cpsw version 1.15 (0)
[    1.916740] Micrel KSZ9031 Gigabit PHY 4a101000.mdio:01: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=4a101000.mdio:01, irq=POLL)
[    1.933661] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[    3.844435] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[    3.852607] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    3.882671] Sending DHCP requests .., OK
[    6.026604] IP-Config: Got DHCP answer from 192.168.3.1, my address is 192.168.3.52
[    6.034561] IP-Config: Complete:
[    6.037814]      device=eth0, hwaddr=c4:be:84:cc:79:9f, ipaddr=192.168.3.52, mask=255.255.255.0, gw=192.168.3.1
[    6.047974]      host=192.168.3.52, domain=, nis-domain=(none)
[    6.053937]      bootserver=0.0.0.0, rootserver=192.168.3.50, rootpath=     nameserver0=202.96.209.133, nameserver1=180.168.255.118
[    6.068516] ALSA device list:
[    6.071508]   No soundcards found.
[    6.082813] VFS: Mounted root (nfs filesystem) on device 0:14.
[    6.089369] devtmpfs: mounted
[    6.094443] Freeing unused kernel memory: 1024K
[    6.104144] random: fast init done
[    6.500311] systemd[1]: System time before build time, advancing clock.
[    6.567472] systemd[1]: systemd 234 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN default-hierarchy=hybrid)
[    6.589181] systemd[1]: Detected architecture arm.

Welcome to Arago 2018.10!

[    6.624894] systemd[1]: Set hostname to <am437x-evm>.
[    7.738354] random: systemd: uninitialized urandom read (16 bytes read)
[    7.746250] systemd[1]: Listening on Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    7.838764] random: systemd: uninitialized urandom read (16 bytes read)
[    7.845761] systemd[1]: Reached target Swap.
[  OK  ] Reached target Swap.
[    7.873066] random: systemd: uninitialized urandom read (16 bytes read)
[    7.879945] systemd[1]: Listening on Network Service Netlink Socket.
[  OK  ] Listening on Network Service Netlink Socket.
[    7.958721] systemd[1]: Listening on Process Core Dump Socket.
[  OK  ] Listening on Process Core Dump Socket.
[    7.993354] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[  OK  ] Started Dispatch Password Requests to Console Directory Watch.
[    8.033537] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
[    8.073457] systemd[1]: Listening on Syslog Socket.
[  OK  ] Listening on Syslog Socket.
[  OK  ] Listening on Journal Socket.
[  OK  ] Created slice System Slice.
         Starting Journal Service...
         Mounting POSIX Message Queue File System...
[  OK  ] Created slice system-serial\x2dgetty.slice.
[  OK  ] Created slice system-getty.slice.
         Mounting Kernel Debug File System...
         Starting Load Kernel Modules...
         Mounting Temporary Directory (/tmp)...
         Starting Remount Root and Kernel File Systems...
         Starting Create list of required st…ce nodes for the current kernel...
[  OK  ] Listening on udev Kernel Socket.
[    8.466728] cmemk: loading out-of-tree module taints kernel.
[  OK  ] Reached target Remote File Systems.
[    8.495247] CMEMK module: reference Linux version 4.14.79
[  OK  ] Listening on udev Control Socket.
[    8.527572] no physical memory specified
[    8.551374] cmemk initialized
[  OK  ] Created slice User and Session Slice.
[  OK  ] Reached target Slices.
[    8.602929] cryptodev: driver 1.9 loaded.
[  OK  ] Started Forward Password Requests to Wall Directory Watch.
[  OK  ] Reached target Paths.
[    8.656302] random: crng init done
[    8.660675] random: 7 urandom warning(s) missed due to ratelimiting
[    8.680924] usbcore: registered new interface driver usbfs
[  OK  ] Mounted Kernel Debug File System.
[    8.703464] usbcore: registered new interface driver hub
[    8.722825] usbcore: registered new device driver usb
[  OK  ] Mounted POSIX Message Queue File System.
[    8.751471] usbcore: registered new interface driver usbserial
[  OK  ] Mounted Temporary Directory (/tmp).
[    8.781131] usbcore: registered new interface driver ftdi_sio
[    8.787411] usbserial: USB Serial support registered for FTDI USB Serial Device
[  OK  ] Started Journal Service.
[  OK  ] Started Load Kernel Modules.
[  OK  ] Started Remount Root and Kernel File Systems.
[  OK  ] Started Create list of required sta…vice nodes for the current kernel.
         Starting udev Coldplug all Devices...
         Starting Create Static Device Nodes in /dev...
         Mounting Kernel Configuration File System...
         Starting Apply Kernel Variables...
         Starting Flush Journal to Persistent Storage...
[  OK  ] Mounted Kernel Configuration File System.
[    9.296451] systemd-journald[66]: Received request to flush runtime journal from PID 1
[  OK  ] Started Apply Kernel Variables.
[  OK  ] Started Create Static Device Nodes in /dev.
[  OK  ] Started Flush Journal to Persistent Storage.
[  OK  ] Reached target Local File Systems (Pre).
         Mounting /media/ram...
         Mounting /var/volatile...
         Starting udev Kernel Device Manager...
[  OK  ] Mounted /var/volatile.
[  OK  ] Mounted /media/ram.
         Starting Load/Save Random Seed...
[  OK  ] Reached target Local File Systems.
         Starting Create Volatile Files and Directories...
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Started udev Kernel Device Manager.
[  OK  ] Started Create Volatile Files and Directories.
         Starting Update UTMP about System Boot/Shutdown...
         Starting Network Time Synchronization...
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Started Network Time Synchronization.
[  OK  ] Reached target System Time Synchronized.
[  OK  ] Started udev Coldplug all Devices.
[  OK  ] Reached target System Initialization.
         Starting Docker Socket for the API.
[  OK  ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Started Daily Cleanup of Temporary Directories.
[  OK  ] Listening on dropbear.socket.
[   11.617435] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[  OK  ] Listening on RPCbind Server Activation Socket.
         Starting Network Service...
[  OK  ] Started Daily rotation of log files.
[  OK  ] Reached target Timers.
[FAILED] Failed to listen on Docker Socket for the API.
[   11.890748] remoteproc remoteproc0: wkup_m3 is available
See 'systemctl status docker.socket' for details.
[DEPEND] Dependency failed for Docker Application Container Engine.
[  OK  ] Found device /dev/ttyS0.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Basic System.
[   12.147628] remoteproc remoteproc0: powering up wkup_m3
         Starting Avahi mDNS/DNS-SD Stack...
[   12.197367] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 224628
[   12.223282] remoteproc remoteproc0: remote processor wkup_m3 is now up
[   12.229866] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x192
         Starting Login Service...
         Starting RPC Bind Service...
         Starting Print notice about GPLv3 packages...
[  OK  ] Started Job spooling tools.
[  OK  ] Started D-Bus System Message Bus.
[  OK  ] Started Avahi mDNS/DNS-SD Stack.
         Starting uim-sysfs.service...
[  OK  ] Reached target Containers.
[  OK  ] Started Hardware RNG Entropy Gatherer Daemon.
[  OK  ] Started Periodic Command Scheduler.
[  OK  ] Started Kernel Logging Service.
[  OK  ] Started System Logging Service.
[  OK  ] Started RPC Bind Service.
[  OK  ] Started Login Service.
[  OK  ] Started Network Service.
         Starting Wait for Network to be Configured...
[  OK  ] Reached target Network.
         Starting Enable and configure wl18xx bluetooth stack...
         Starting Simple Network Management Protocol (SNMP) Daemon....
         Starting DNS forwarder and DHCP server...
[  OK  ] Started Redis In-Memory Data Store.
         Starting Lightning Fast Webserver With Light System Requirements...
         Starting Permit User Sessions...
         Starting Network Name Resolution...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Reached target Login Prompts.
         Starting Synchronize System and HW clocks...
[FAILED] Failed to start DNS forwarder and DHCP server.
See 'systemctl status dnsmasq.service' for details.
[FAILED] Failed to start Synchronize System and HW clocks.
See 'systemctl status sync-clocks.service' for details.
[  OK  ] Started Lightning Fast Webserver With Light System Requirements.
[  OK  ] Started Enable and configure wl18xx bluetooth stack.
[  OK  ] Started Network Name Resolution.
[  OK  ] Reached target Host and Network Name Lookups.
[  OK  ] Started NFS status monitor for NFSv2/3 locking..
[  OK  ] Started uim-sysfs.service.
         Starting rc.pvr.service...
[   17.760104] [drm] Initialized pvr 1.14.3699939 20110701 for 56000000.sgx on minor 0
[  OK  ] Started Simple Network Management Protocol (SNMP) Daemon..
[   18.173914] PVR_K: UM DDK-(3699939) and KM DDK-(3699939) match. [ OK ]
[  OK  ] Started rc.pvr.service.
         Starting weston.service...
[   18.808637] omap-sham 53100000.sham: hw accel on OMAP rev 0.0
[   19.732383] omap-aes 53501000.aes: OMAP AES hw accel rev: 0.1
[   19.826363] omap-aes 53501000.aes: will run requests pump with realtime priority
[   19.984514] omap-des 53701000.des: OMAP DES hw accel rev: 0.33
[   20.077101] omap-des 53701000.des: will run requests pump with realtime priority


 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org am437x-evm ttyS0

Arago 2018.10 am437x-evm ttyS0

am437x-evm login: [   20.778759] PM: no-rtc available, rtc-only mode disabled.
[   23.412324] EXT4-fs (mmcblk0p2): mounting ext3 file system using the ext4 subsystem
[   23.757946] EXT4-fs (mmcblk0p2): recovery complete
[   23.958616] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[   24.706536] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
***************************************************************
***************************************************************
NOTICE: This file system contains the following GPLv3 packages:
	autoconf
	bash-dev
	bash
	binutils
	cifs-utils
	cpio
	cpp-symlinks
	cpp
	dnsmasq
	dosfstools
	elfutils
	findutils
	g++-symlinks
	g++
	gawk
	gcc-symlinks
	gcc
	gdb
	gdbserver
	gettext
	glmark2
	gstreamer1.0-libav
	gzip
	hidapi
	libdw1
	libelf1
	libgdbm-compat4
	libgdbm-dev
	libgdbm4
	libgettextlib
	libgettextsrc
	libgmp10
	libidn11
	libmavconn
	libmpc3
	libmpfr4
	libreadline-dev
	libreadline7
	libunistring2
	m4-dev
	m4
	make
	mavlink
	mavros-extras
	mavros-msgs
	mavros
	nettle
	python3-pycairo
	rsync
	socketcan-interface
	which

If you do not wish to distribute GPLv3 components please remove
the above packages prior to distribution.  This can be done using
the opkg remove command.  i.e.:
    opkg remove <package>
Where <package> is the name printed in the list above

NOTE: If the package is a dependency of another package you
      will be notified of the dependent packages.  You should
      use the --force-removal-of-dependent-packages option to
      also remove the dependent packages as well
***************************************************************
***************************************************************
[   29.900894] NET: Registered protocol family 15
[   30.237416] Initializing XFRM netlink socket
[   34.521275] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[   34.527217] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[   34.555215] xhci-hcd xhci-hcd.0.auto: hcc params 0x0238f06d hci version 0x100 quirks 0x02010010
[   34.579766] xhci-hcd xhci-hcd.0.auto: irq 93, io mem 0x48390000
[   34.598076] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   34.623970] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   34.631825] usb usb1: Product: xHCI Host Controller
[   34.648813] usb usb1: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   34.673459] usb usb1: SerialNumber: xhci-hcd.0.auto
[   34.700819] hub 1-0:1.0: USB hub found
[   34.707490] hub 1-0:1.0: 1 port detected
[   34.727024] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[   34.752636] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[   34.781848] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0  SuperSpeed
[   34.800729] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[   34.824140] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[   34.831541] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   34.848179] usb usb2: Product: xHCI Host Controller
[   34.868796] usb usb2: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   34.889205] usb usb2: SerialNumber: xhci-hcd.0.auto
[   34.911070] hub 2-0:1.0: USB hub found
[   34.928418] hub 2-0:1.0: 1 port detected
[   34.956011] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[   34.967987] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3
[   34.990002] xhci-hcd xhci-hcd.1.auto: hcc params 0x0238f06d hci version 0x100 quirks 0x02010010
[   35.018035] xhci-hcd xhci-hcd.1.auto: irq 94, io mem 0x483d0000
[   35.036417] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[   35.058070] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   35.073426] usb usb3: Product: xHCI Host Controller
[   35.079007] usb usb3: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   35.096164] usb usb3: SerialNumber: xhci-hcd.1.auto
[   35.129827] hub 3-0:1.0: USB hub found
[   35.135430] hub 3-0:1.0: 1 port detected
[   35.142130] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[   35.158029] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4
[   35.186822] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0  SuperSpeed
[   35.213619] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[   35.244632] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[   35.252105] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   35.268955] usb usb4: Product: xHCI Host Controller
[   35.287958] usb usb4: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   35.308139] usb usb4: SerialNumber: xhci-hcd.1.auto
[   35.332438] hub 4-0:1.0: USB hub found
[   35.348153] hub 4-0:1.0: 1 port detected


 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org am437x-evm ttyS0

Arago 2018.10 am437x-evm ttyS0

am437x-evm login: root

78root@am437x-evm:~# [  152.612757] usb 3-1: new high-speed USB device number 2 using xhci-hcd
-sh: [: missing `]'
root@am437x-evm:~# [  152.800063] usb 3-1: New USB device found, idVendor=058f, idProduct=6387
[  152.806967] usb 3-1: New USB device strings: M-sh: [: missing `]'
fr=1, Product=2, SerialNumber=3
[  152.820084] usb 3-1: Product: Mass Storage
[  152.828686] usb 3-1: Manufacturer: Generic
[  152.837281] usb 3-1: SerialNumber: 1090865F
root@am437x-evm:~# [  152.806967] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
-sh: [: missing `]'
[  153.071027] scsi host0: usb-storage 3-1:1.0
root@am437x-evm:~# [  152.820084] usb 3-1: Product: Mass Storage
-sh: [: missing `]'
[  351.127196] usb 3-1: USB disconnect, device number 2
root@am437x-evm:~# [  152.828686] usb 3-1: Manufacturer: Generic
-sh: [: missing `]'
root@am437x-evm:~# [  152.837281] usb 3-1: SerialNumber: 1090865F
-sh: [: missing `]'
root@am437x-evm:~# [  153.064170] usb-storage 3-1:1.0: USB Mass Storage device detected
-sh: [: missing `]'
root@am437x-evm:~# [  153.071027] scsi host0: usb-storage 3-1:1.0
-sh: [: missing `]'
root@am437x-evm:~# [  153.084022] usbcore: registered new interface driver usb-storage
-sh: [: missing `]'
root@am437x-evm:~# [  351.127196] usb 3-1: USB disconnect, device number 2
-sh: [: missing `]'
root@am437x-evm:~# dmesg |grep -E "USB|usb"
[    8.680924] usbcore: registered new interface driver usbfs
[    8.703464] usbcore: registered new interface driver hub
[    8.722825] usbcore: registered new device driver usb
[    8.751471] usbcore: registered new interface driver usbserial
[    8.781131] usbcore: registered new interface driver ftdi_sio
[    8.787411] usbserial: USB Serial support registered for FTDI USB Serial Device
[   34.527217] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[   34.598076] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   34.623970] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   34.631825] usb usb1: Product: xHCI Host Controller
[   34.648813] usb usb1: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   34.673459] usb usb1: SerialNumber: xhci-hcd.0.auto
[   34.700819] hub 1-0:1.0: USB hub found
[   34.752636] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[   34.781848] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0  SuperSpeed
[   34.800729] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[   34.824140] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[   34.831541] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   34.848179] usb usb2: Product: xHCI Host Controller
[   34.868796] usb usb2: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   34.889205] usb usb2: SerialNumber: xhci-hcd.0.auto
[   34.911070] hub 2-0:1.0: USB hub found
[   34.967987] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3
[   35.036417] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[   35.058070] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   35.073426] usb usb3: Product: xHCI Host Controller
[   35.079007] usb usb3: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   35.096164] usb usb3: SerialNumber: xhci-hcd.1.auto
[   35.129827] hub 3-0:1.0: USB hub found
[   35.158029] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4
[   35.186822] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0  SuperSpeed
[   35.213619] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[   35.244632] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[   35.252105] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   35.268955] usb usb4: Product: xHCI Host Controller
[   35.287958] usb usb4: Manufacturer: Linux 4.14.79-gbde58ab01e xhci-hcd
[   35.308139] usb usb4: SerialNumber: xhci-hcd.1.auto
[   35.332438] hub 4-0:1.0: USB hub found



/////////////////////////////////////////////////////////////
Insert and pull out the USB2.0 flash disk, 
the log information as following:
/////////////////////////////////////////////////////////////
root@am437x-evm:~# [   72.042633] usb 3-1: new high-speed USB device number 2 using xhci-hcd
[   72.229917] usb 3-1: New USB device found, idVendor=058f, idProduct=6387
[   72.236815] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   72.249887] usb 3-1: Product: Mass Storage
[   72.258372] usb 3-1: Manufacturer: Generic
[   72.266870] usb 3-1: SerialNumber: 1090865F
[   72.463357] SCSI subsystem initialized
[   72.501743] usb-storage 3-1:1.0: USB Mass Storage device detected
[   72.509196] scsi host0: usb-storage 3-1:1.0
[   72.522000] usbcore: registered new interface driver usb-storage
[   73.524905] scsi 0:0:0:0: Direct-Access     Generic  Flash Disk       8.07 PQ: 0 ANSI: 4
[   73.568645] sd 0:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB)
[   73.583898] sd 0:0:0:0: [sda] Write Protect is off
[   73.593416] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   73.633038]  sda: sda1
[   73.639772] sd 0:0:0:0: [sda] Attached SCSI removable disk
[   74.734925] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

root@am437x-evm:~# [   79.802849] usb 3-1: USB disconnect, device number 2
[   80.005438] blk_partition_remap: fail for partition 1
[   80.010542] blk_partition_remap: fail for partition 1
[   80.019396] blk_partition_remap: fail for partition 1
[   80.026698] blk_partition_remap: fail for partition 1
[   80.031788] blk_partition_remap: fail for partition 1
[   80.040451] blk_partition_remap: fail for partition 1
[   80.048005] blk_partition_remap: fail for partition 1
[   80.055599] blk_partition_remap: fail for partition 1
[   80.060722] blk_partition_remap: fail for partition 1
[   80.069529] blk_partition_remap: fail for partition 1
[   80.076867] blk_partition_remap: fail for partition 1
[   80.081957] blk_partition_remap: fail for partition 1
[   80.090717] blk_partition_remap: fail for partition 1
[   80.098007] blk_partition_remap: fail for partition 1
[   80.105284] blk_partition_remap: fail for partition 1
[   80.110378] blk_partition_remap: fail for partition 1
[   80.119069] blk_partition_remap: fail for partition 1
[   80.126406] blk_partition_remap: fail for partition 1
[   80.131500] blk_partition_remap: fail for partition 1
[   80.140251] blk_partition_remap: fail for partition 1
[   80.147599] blk_partition_remap: fail for partition 1
[   80.155098] blk_partition_remap: fail for partition 1
[   80.160189] blk_partition_remap: fail for partition 1
[   80.168919] blk_partition_remap: fail for partition 1
[   80.176318] blk_partition_remap: fail for partition 1
[   80.181410] blk_partition_remap: fail for partition 1
[   80.190068] blk_partition_remap: fail for partition 1
[   80.197398] blk_partition_remap: fail for partition 1
[   80.204737] blk_partition_remap: fail for partition 1
[   80.209830] blk_partition_remap: fail for partition 1
[   80.218505] blk_partition_remap: fail for partition 1
[   80.225841] blk_partition_remap: fail for partition 1
[   80.230964] blk_partition_remap: fail for partition 1
[   80.239709] blk_partition_remap: fail for partition 1
[   80.246978] blk_partition_remap: fail for partition 1
[   80.252069] blk_partition_remap: fail for partition 1
[   80.261008] blk_partition_remap: fail for partition 1
[   80.268402] blk_partition_remap: fail for partition 1
[   80.275566] blk_partition_remap: fail for partition 1
[   80.280658] blk_partition_remap: fail for partition 1
[   80.289433] blk_partition_remap: fail for partition 1
[   80.296796] blk_partition_remap: fail for partition 1
[   80.301888] blk_partition_remap: fail for partition 1
[   80.310535] blk_partition_remap: fail for partition 1
[   80.317883] blk_partition_remap: fail for partition 1
[   80.325335] blk_partition_remap: fail for partition 1
[   80.330428] blk_partition_remap: fail for partition 1
[   80.339065] blk_partition_remap: fail for partition 1
[   80.346439] blk_partition_remap: fail for partition 1
[   80.351532] blk_partition_remap: fail for partition 1
[   80.360232] blk_partition_remap: fail for partition 1
[   80.367825] blk_partition_remap: fail for partition 1
[   80.375136] blk_partition_remap: fail for partition 1
[   80.380228] blk_partition_remap: fail for partition 1
[   80.388946] blk_partition_remap: fail for partition 1
[   80.396177] blk_partition_remap: fail for partition 1
[   80.401319] blk_partition_remap: fail for partition 1
[   80.410108] blk_partition_remap: fail for partition 1
[   80.417493] blk_partition_remap: fail for partition 1
[   80.424728] blk_partition_remap: fail for partition 1
[   80.429821] blk_partition_remap: fail for partition 1
[   80.438563] blk_partition_remap: fail for partition 1
[   80.445936] blk_partition_remap: fail for partition 1
[   80.451028] blk_partition_remap: fail for partition 1
[   80.460239] blk_partition_remap: fail for partition 1
[   80.467960] blk_partition_remap: fail for partition 1
[   80.475324] blk_partition_remap: fail for partition 1
[   80.480416] blk_partition_remap: fail for partition 1
[   80.488977] blk_partition_remap: fail for partition 1
[   80.496396] blk_partition_remap: fail for partition 1
[   80.501487] blk_partition_remap: fail for partition 1
[   80.510299] blk_partition_remap: fail for partition 1
[   80.517565] blk_partition_remap: fail for partition 1
[   80.524915] blk_partition_remap: fail for partition 1
[   80.530005] blk_partition_remap: fail for partition 1
[   80.538671] blk_partition_remap: fail for partition 1
[   80.545898] blk_partition_remap: fail for partition 1
[   80.550992] blk_partition_remap: fail for partition 1
[   80.559790] blk_partition_remap: fail for partition 1
[   80.567158] blk_partition_remap: fail for partition 1
[   80.574707] blk_partition_remap: fail for partition 1
[   80.579801] blk_partition_remap: fail for partition 1
[   80.588699] blk_partition_remap: fail for partition 1
[   80.595938] blk_partition_remap: fail for partition 1
[   80.601029] blk_partition_remap: fail for partition 1
[   80.609723] blk_partition_remap: fail for partition 1
[   80.617105] blk_partition_remap: fail for partition 1
[   80.622196] blk_partition_remap: fail for partition 1
[   80.630830] blk_partition_remap: fail for partition 1
[   80.638178] blk_partition_remap: fail for partition 1
[   80.645464] blk_partition_remap: fail for partition 1
[   80.650556] blk_partition_remap: fail for partition 1
[   80.659180] blk_partition_remap: fail for partition 1
[   80.666531] blk_partition_remap: fail for partition 1
[   80.671622] blk_partition_remap: fail for partition 1
[   80.680598] blk_partition_remap: fail for partition 1
[   80.687900] blk_partition_remap: fail for partition 1
[   80.695224] blk_partition_remap: fail for partition 1
[   80.700316] blk_partition_remap: fail for partition 1
[   80.709070] blk_partition_remap: fail for partition 1
[   80.716323] blk_partition_remap: fail for partition 1
[   80.721414] blk_partition_remap: fail for partition 1
[   80.730121] blk_partition_remap: fail for partition 1
[   80.737457] blk_partition_remap: fail for partition 1
[   80.744780] blk_partition_remap: fail for partition 1
[   80.749872] blk_partition_remap: fail for partition 1
[   80.758575] blk_partition_remap: fail for partition 1
[   80.765924] blk_partition_remap: fail for partition 1
[   80.771016] blk_partition_remap: fail for partition 1
[   80.779690] blk_partition_remap: fail for partition 1
[   80.787322] blk_partition_remap: fail for partition 1
[   80.792414] blk_partition_remap: fail for partition 1
[   80.801208] blk_partition_remap: fail for partition 1
[   80.808940] blk_partition_remap: fail for partition 1
[   80.816236] blk_partition_remap: fail for partition 1
[   80.821328] blk_partition_remap: fail for partition 1
[   80.830069] blk_partition_remap: fail for partition 1
[   80.837312] blk_partition_remap: fail for partition 1
[   80.842402] blk_partition_remap: fail for partition 1
[   80.851312] blk_partition_remap: fail for partition 1
[   80.858786] blk_partition_remap: fail for partition 1
[   80.866080] blk_partition_remap: fail for partition 1
[   80.871171] blk_partition_remap: fail for partition 1
[   80.879872] blk_partition_remap: fail for partition 1
[   80.887495] blk_partition_remap: fail for partition 1
[   80.894723] blk_partition_remap: fail for partition 1
[   80.899814] blk_partition_remap: fail for partition 1
[   80.908553] blk_partition_remap: fail for partition 1
[   80.916013] blk_partition_remap: fail for partition 1
[   80.921106] blk_partition_remap: fail for partition 1
[   80.929811] blk_partition_remap: fail for partition 1
[   80.937169] blk_partition_remap: fail for partition 1
[   80.942263] blk_partition_remap: fail for partition 1
[   80.950970] blk_partition_remap: fail for partition 1
[   80.958206] blk_partition_remap: fail for partition 1
[   80.965581] blk_partition_remap: fail for partition 1
[   80.970704] blk_partition_remap: fail for partition 1
[   80.979400] blk_partition_remap: fail for partition 1
[   80.986707] blk_partition_remap: fail for partition 1
[   80.992111] blk_partition_remap: fail for partition 1
[   81.000929] blk_partition_remap: fail for partition 1
[   81.008315] blk_partition_remap: fail for partition 1
[   81.015499] blk_partition_remap: fail for partition 1
[   81.020589] blk_partition_remap: fail for partition 1
[   81.029385] blk_partition_remap: fail for partition 1
[   81.036759] blk_partition_remap: fail for partition 1
[   81.041849] blk_partition_remap: fail for partition 1
[   81.050478] blk_partition_remap: fail for partition 1
[   81.057882] blk_partition_remap: fail for partition 1
[   81.065168] blk_partition_remap: fail for partition 1
[   81.070260] blk_partition_remap: fail for partition 1
[   81.078814] blk_partition_remap: fail for partition 1
[   81.086244] blk_partition_remap: fail for partition 1
[   81.091338] blk_partition_remap: fail for partition 1
[   81.100511] blk_partition_remap: fail for partition 1
[   81.107761] blk_partition_remap: fail for partition 1
[   81.115111] blk_partition_remap: fail for partition 1
[   81.120202] blk_partition_remap: fail for partition 1
[   81.128879] blk_partition_remap: fail for partition 1
[   81.136097] blk_partition_remap: fail for partition 1
[   81.141221] blk_partition_remap: fail for partition 1
[   81.149989] blk_partition_remap: fail for partition 1
[   81.157343] blk_partition_remap: fail for partition 1
[   81.162434] blk_partition_remap: fail for partition 1
[   81.171049] blk_partition_remap: fail for partition 1
[   81.178438] blk_partition_remap: fail for partition 1
[   81.185752] blk_partition_remap: fail for partition 1
[   81.190843] blk_partition_remap: fail for partition 1
[   81.199717] blk_partition_remap: fail for partition 1
[   81.207112] blk_partition_remap: fail for partition 1
[   81.212203] blk_partition_remap: fail for partition 1
[   81.220971] blk_partition_remap: fail for partition 1
[   81.228235] blk_partition_remap: fail for partition 1
[   81.235547] blk_partition_remap: fail for partition 1
[   81.240729] blk_partition_remap: fail for partition 1
[   81.249499] blk_partition_remap: fail for partition 1
[   81.256716] blk_partition_remap: fail for partition 1
[   81.261809] blk_partition_remap: fail for partition 1
[   81.270621] blk_partition_remap: fail for partition 1
[   81.278000] blk_partition_remap: fail for partition 1
[   81.285232] blk_partition_remap: fail for partition 1
[   81.290323] blk_partition_remap: fail for partition 1
[   81.299006] blk_partition_remap: fail for partition 1
[   81.306692] blk_partition_remap: fail for partition 1
[   81.311824] blk_partition_remap: fail for partition 1
[   81.320451] blk_partition_remap: fail for partition 1
[   81.327785] blk_partition_remap: fail for partition 1
[   81.335139] blk_partition_remap: fail for partition 1
[   81.340229] blk_partition_remap: fail for partition 1
[   81.348885] blk_partition_remap: fail for partition 1
[   81.358061] blk_partition_remap: fail for partition 1
[   81.365451] blk_partition_remap: fail for partition 1
[   81.370573] blk_partition_remap: fail for partition 1
[   81.379249] blk_partition_remap: fail for partition 1
[   81.386567] blk_partition_remap: fail for partition 1
[   81.391662] blk_partition_remap: fail for partition 1
[   81.400451] blk_partition_remap: fail for partition 1
[   81.407932] blk_partition_remap: fail for partition 1
[   81.415311] blk_partition_remap: fail for partition 1
[   81.420404] blk_partition_remap: fail for partition 1
[   81.429155] blk_partition_remap: fail for partition 1
[   81.436416] blk_partition_remap: fail for partition 1
[   81.441507] blk_partition_remap: fail for partition 1
[   81.450227] blk_partition_remap: fail for partition 1
[   81.457588] blk_partition_remap: fail for partition 1
[   81.464860] blk_partition_remap: fail for partition 1
[   81.469949] blk_partition_remap: fail for partition 1
[   81.478629] blk_partition_remap: fail for partition 1
[   81.486012] blk_partition_remap: fail for partition 1
[   81.491104] blk_partition_remap: fail for partition 1
[   81.499778] blk_partition_remap: fail for partition 1
[   81.507204] blk_partition_remap: fail for partition 1
[   81.514763] blk_partition_remap: fail for partition 1
[   81.519856] blk_partition_remap: fail for partition 1
[   81.528644] blk_partition_remap: fail for partition 1
[   81.535890] blk_partition_remap: fail for partition 1
[   81.541014] blk_partition_remap: fail for partition 1
[   81.549727] blk_partition_remap: fail for partition 1
[   81.557167] blk_partition_remap: fail for partition 1
[   81.562260] blk_partition_remap: fail for partition 1
[   81.570852] blk_partition_remap: fail for partition 1
[   81.578197] blk_partition_remap: fail for partition 1
[   81.585602] blk_partition_remap: fail for partition 1
[   81.590695] blk_partition_remap: fail for partition 1
[   81.599321] blk_partition_remap: fail for partition 1
[   81.606681] blk_partition_remap: fail for partition 1
[   81.611774] blk_partition_remap: fail for partition 1
[   81.620941] blk_partition_remap: fail for partition 1
[   81.628206] blk_partition_remap: fail for partition 1
[   81.635536] blk_partition_remap: fail for partition 1
[   81.640628] blk_partition_remap: fail for partition 1
[   81.649427] blk_partition_remap: fail for partition 1
[   81.656709] blk_partition_remap: fail for partition 1
[   81.661801] blk_partition_remap: fail for partition 1
[   81.670526] blk_partition_remap: fail for partition 1
[   81.677923] blk_partition_remap: fail for partition 1
[   81.685093] blk_partition_remap: fail for partition 1
[   81.690185] blk_partition_remap: fail for partition 1
[   81.698847] blk_partition_remap: fail for partition 1
[   81.706267] blk_partition_remap: fail for partition 1
[   81.711405] blk_partition_remap: fail for partition 1
[   81.720076] blk_partition_remap: fail for partition 1
[   81.727729] blk_partition_remap: fail for partition 1
[   81.735036] blk_partition_remap: fail for partition 1
[   81.740126] blk_partition_remap: fail for partition 1
[   81.748763] blk_partition_remap: fail for partition 1
[   81.756106] blk_partition_remap: fail for partition 1
[   81.761198] blk_partition_remap: fail for partition 1
[   81.770009] blk_partition_remap: fail for partition 1
[   81.777267] blk_partition_remap: fail for partition 1
[   81.782358] blk_partition_remap: fail for partition 1
[   81.791067] blk_partition_remap: fail for partition 1
[   81.798409] blk_partition_remap: fail for partition 1
[   81.805651] blk_partition_remap: fail for partition 1
[   81.810742] blk_partition_remap: fail for partition 1
[   81.819472] blk_partition_remap: fail for partition 1
[   81.827125] blk_partition_remap: fail for partition 1
[   81.832216] FAT-fs (sda1): FAT read failed (blocknr 2080)



/////////////////////////////////////////////////////////////
Insert and pull out the USB3.0 flash disk, 
the log information as following:
/////////////////////////////////////////////////////////////
root@am437x-evm:~# [  129.952664] usb 3-1: new high-speed USB device number 3 using xhci-hcd
[  130.134588] usb 3-1: New USB device found, idVendor=0781, idProduct=5581
[  130.141363] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  130.152691] usb 3-1: Product: Ultra
[  130.156230] usb 3-1: Manufacturer: SanDisk
[  130.160364] usb 3-1: SerialNumber: 4C530001050121116110
[  130.181959] usb-storage 3-1:1.0: USB Mass Storage device detected
[  130.200261] scsi host0: usb-storage 3-1:1.0
[  131.283694] scsi 0:0:0:0: Direct-Access     SanDisk  Ultra            1.00 PQ: 0 ANSI: 6
[  131.298766] sd 0:0:0:0: [sda] 30375936 512-byte logical blocks: (15.6 GB/14.5 GiB)
[  131.313724] sd 0:0:0:0: [sda] Write Protect is off
[  131.325789] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[  131.361914]  sda:
[  131.366555] sd 0:0:0:0: [sda] Attached SCSI removable disk
[  131.754635] FAT-fs (sda): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

root@am437x-evm:~# [  135.222011] usb 3-1: USB disconnect, device number 3
[  135.427530] FAT-fs (sda): FAT read failed (blocknr 3134)

root@am437x-evm:~# 

Customer also has tried other brand USB disks, the result is the same. Is there some bug in the newest SDK USB driver?

Thanks.
Rgds

Shine