The output before and after inserting an usb device is the same. It looks as follows:
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.4.6-4.0.0-devel+git.a592a95575cd (oe-user@oe-host
) (gcc version 9.2.0 (GCC)) #1 Tue Apr 14 10:36:33 UTC 2020
[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c53c7d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instructio
n cache
[ 0.000000] OF: fdt: Machine model: Toradex Colibri iMX6ULL 512MB on Colibri
Evaluation Board V3
[ 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 64 MiB at 0x9c000000
[ 0.000000] On node 0 totalpages: 131072
[ 0.000000] Normal zone: 1152 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 131072 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129920
[ 0.000000] Kernel command line: user_debug=30 nfsrootdebug root=/dev/nfs rw
nfsroot=192.168.10.34:/rootfs,v4,tcp,clientaddr=0.0.0.0 ip=192.168.10.2:192.168.
10.34:192.168.10.34:255.255.255.0:toradex::off console=tty1 console=ttymxc0,1152
00n8 consoleblank=0 video=mxsfb:640x480M-16@60
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, l
inear)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, li
near)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 438840K/524288K available (7168K kernel code, 884K rwdata
, 3848K rodata, 1024K init, 418K bss, 19912K reserved, 65536K cma-reserved, 0K h
ighmem)
[ 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
[ 0.000000] random: get_random_bytes called from start_kernel+0x27b/0x3f4 wit
h crng_init=0
[ 0.000000] Switching to timer-based delay loop, resolution 41ns
[ 0.000014] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478
484971ns
[ 0.000049] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 79635851949 ns
[ 0.002350] Console: colour dummy device 80x30
[ 0.003031] printk: console [tty1] enabled
[ 0.003104] Calibrating delay loop (skipped), value calculated using timer fr
equency.. 48.00 BogoMIPS (lpj=240000)
[ 0.003170] pid_max: default: 32768 minimum: 301
[ 0.003626] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linea
r)
[ 0.003691] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes,
linear)
[ 0.005279] CPU: Testing write buffer coherency: ok
[ 0.006408] Setting up static identity map for 0x80100000 - 0x80100054
[ 0.012920] EFI services will not be available.
[ 0.013555] devtmpfs: initialized
[ 0.026622] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7
rev 5
[ 0.027134] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, ma
x_idle_ns: 19112604462750000 ns
[ 0.027208] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[ 0.032291] pinctrl core: initialized pinctrl subsystem
[ 0.034283] NET: Registered protocol family 16
[ 0.048230] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.050407] cpuidle: using governor ladder
[ 0.050459] cpuidle: using governor menu
[ 0.060336] vdd3p0: supplied by regulator-dummy
[ 0.061394] cpu: supplied by regulator-dummy
[ 0.062396] vddsoc: supplied by regulator-dummy
[ 0.079394] No ATAGs?
[ 0.079426] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint
registers.
[ 0.079506] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.080604] imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[ 0.082018] imx6ul-pinctrl 2290000.iomuxc-snvs: initialized IMX pinctrl drive
r
[ 0.082677] Serial: AMBA PL011 UART driver
[ 0.104432] cryptd: max_cpu_qlen set to 1000
[ 0.142644] mxs-dma 1804000.dma-apbh: initialized
[ 0.146098] regulator-usbh-vbus GPIO handle specifies active low - ignored
[ 0.146223] VCC_USB[1-4]: supplied by 5V
[ 0.148165] vgaarb: loaded
[ 0.149211] SCSI subsystem initialized
[ 0.149621] libata version 3.00 loaded.
[ 0.150131] usbcore: registered new interface driver usbfs
[ 0.150277] usbcore: registered new interface driver hub
[ 0.150406] usbcore: registered new device driver usb
[ 0.152732] i2c i2c-0: IMX I2C adapter registered
[ 0.154002] i2c i2c-1: IMX I2C adapter registered
[ 0.154505] pps_core: LinuxPPS API ver. 1 registered
[ 0.154547] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giome
tti
[ 0.154627] PTP clock support registered
[ 0.155145] Advanced Linux Sound Architecture Driver Initialized.
[ 0.156692] Bluetooth: Core ver 2.22
[ 0.156826] NET: Registered protocol family 31
[ 0.156863] Bluetooth: HCI device and connection manager initialized
[ 0.156915] Bluetooth: HCI socket layer initialized
[ 0.156953] Bluetooth: L2CAP socket layer initialized
[ 0.157005] Bluetooth: SCO socket layer initialized
[ 0.158192] clocksource: Switched to clocksource mxc_timer1
[ 1.313703] VFS: Disk quotas dquot_6.6.0
[ 1.313846] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 1.330186] thermal_sys: Registered thermal governor 'step_wise'
[ 1.330762] NET: Registered protocol family 2
[ 1.332004] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096
bytes, linear)
[ 1.332112] TCP established hash table entries: 4096 (order: 2, 16384 bytes,
linear)
[ 1.332240] TCP bind hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 1.332369] TCP: Hash tables configured (established 4096 bind 4096)
[ 1.332556] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 1.332624] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 1.333001] NET: Registered protocol family 1
[ 1.333996] RPC: Registered named UNIX socket transport module.
[ 1.334050] RPC: Registered udp transport module.
[ 1.334081] RPC: Registered tcp transport module.
[ 1.334109] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.334153] PCI: CLS 0 bytes, default 64
[ 1.335425] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counter
s available
[ 1.344663] Initialise system trusted keyrings
[ 1.345040] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[ 1.358788] NFS: Registering the id_resolver key type
[ 1.358889] Key type id_resolver registered
[ 1.358924] Key type id_legacy registered
[ 1.462297] NET: Registered protocol family 38
[ 1.462363] Key type asymmetric registered
[ 1.462395] Asymmetric key parser 'x509' registered
[ 1.462523] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 2
47)
[ 1.462815] io scheduler mq-deadline registered
[ 1.462861] io scheduler kyber registered
[ 1.570878] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 23, base_baud =
5000000) is a IMX
[ 2.183856] printk: console [ttymxc0] enabled
[ 2.190168] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 62, base_baud =
5000000) is a IMX
[ 2.200250] 21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 63, base_baud =
5000000) is a IMX
[ 2.222497] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.229265] [drm] No driver support for vblank timestamp query.
[ 2.236415] [drm] Initialized mxsfb-drm 1.0.0 20160824 for 21c8000.lcdif on m
inor 0
[ 2.261487] Console: switching to colour frame buffer device 80x30
[ 2.285472] mxsfb 21c8000.lcdif: fb0: mxsfb-drmdrmfb frame buffer device
[ 2.319644] brd: module loaded
[ 2.343911] loop: module loaded
[ 2.359946] libphy: Fixed MDIO Bus: probed
[ 2.374233] pps pps0: new PPS source ptp0
[ 2.386766] libphy: fec_enet_mii_bus: probed
[ 2.400514] fec 20b4000.ethernet eth0: registered PHC device 0
[ 2.414624] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.428730] ehci-pci: EHCI PCI platform driver
[ 2.440638] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 2.454830] usbcore: registered new interface driver usb-storage
[ 2.468420] usbcore: registered new interface driver usbserial_generic
[ 2.482350] usbserial: USB Serial support registered for generic
[ 2.498866] imx_usb 2184000.usb: No over current polarity defined
[ 2.512279] imx_usb 2184000.usb: 2184000.usb supply vbus not found, using dum
my regulator
[ 2.540887] imx_usb 2184200.usb: No over current polarity defined
[ 2.555330] random: fast init done
[ 2.568864] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 2.580666] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
[ 2.618268] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 2.631963] hub 1-0:1.0: USB hub found
[ 2.642454] hub 1-0:1.0: 1 port detected
[ 2.660200] snvs_rtc 20cc000.snvs:snvs-rtc-lp: registered as rtc0
[ 2.673095] i2c /dev entries driver
[ 2.686153] imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
[ 2.700043] sdhci: Secure Digital Host Controller Interface driver
[ 2.712784] sdhci: Copyright(c) Pierre Ossman
[ 2.723701] Synopsys Designware Multimedia Card Interface Driver
[ 2.737123] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.752399] sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
[ 2.800104] mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADM
A
[ 2.821767] sdhci-esdhc-imx 2194000.usdhc: allocated mmc-pwrseq
[ 2.868313] mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADM
A
[ 2.892104] usbcore: registered new interface driver usbhid
[ 2.904997] usbhid: USB HID core driver
[ 2.920144] usbcore: registered new interface driver snd-usb-audio
[ 2.941089] NET: Registered protocol family 10
[ 2.954743] Segment Routing with IPv6
[ 2.965580] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 2.979682] NET: Registered protocol family 17
[ 2.991309] Key type dns_resolver registered
[ 3.013405] registered taskstats version 1
[ 3.021077] Loading compiled-in X.509 certificates
[ 3.048514] imx_thermal tempmon: Industrial CPU temperature grade - max:105C
critical:100C passive:95C
[ 3.068587] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-0
1-01T00:04:33 UTC (273)
[ 3.087747] Micrel KSZ8041 20b4000.ethernet-1:02: attached PHY driver [Micrel
KSZ8041] (mii_bus:phy_addr=20b4000.ethernet-1:02, irq=POLL)
[ 3.241352] mmc1: new high speed SDIO card at address 0001
[ 5.211986] fec 20b4000.ethernet eth0: Link is Up - 100Mbps/Full - flow contr
ol rx/tx
[ 5.250833] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 5.280593] IP-Config: Complete:
[ 5.287724] device=eth0, hwaddr=00:14:2d:61:a4:08, ipaddr=192.168.10.2,
mask=255.255.255.0, gw=192.168.10.34
[ 5.305893] host=toradex, domain=, nis-domain=(none)
[ 5.315197] bootserver=192.168.10.34, rootserver=192.168.10.34, rootpath
=
[ 5.330560] ALSA device list:
[ 5.337363] No soundcards found.
[ 5.426656] VFS: Mounted root (nfs4 filesystem) on device 0:17.
[ 5.444491] devtmpfs: mounted
[ 5.458464] Freeing unused kernel memory: 1024K
[ 5.471703] Run /sbin/init as init process
[ 6.490167] systemd[1]: System time before build time, advancing clock.
[ 6.615108] systemd[1]: systemd 243.2+ running in system mode. (+PAM -AUDIT -
SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +AC
L +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=h
ybrid)
[ 6.670105] systemd[1]: Detected architecture arm.
[ 6.779867] systemd[1]: Set hostname to .
[ 9.064630] systemd[1]: /lib/systemd/system/dbus.socket:5: ListenStream= refe
rences a path below legacy directory /var/run/, updating /var/run/dbus/system_bu
s_socket → /run/dbus/system_bus_socket; please update the unit file according l
y.
[ 10.218269] systemd[1]: /lib/systemd/system/rpcbind.socket:5: ListenStream= r
eferences a path below legacy directory /var/run/, updating /var/run/rpcbind.soc
k → /run/rpcbind.sock; please update the unit file accordingly.
[ 10.320430] random: systemd: uninitialized urandom read (16 bytes read)
[ 10.340999] systemd[1]: Created slice system-getty.slice.
[ 10.391055] random: systemd: uninitialized urandom read (16 bytes read)
[ 10.407524] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 10.461117] random: systemd: uninitialized urandom read (16 bytes read)
[ 10.477566] systemd[1]: Created slice User and Session Slice.
[ 10.531632] systemd[1]: Started Dispatch Password Requests to Console Directo
ry Watch.
[ 10.591816] systemd[1]: Started Forward Password Requests to Wall Directory W
atch.
[ 11.651075] systemd[1]: Condition check resulted in File System Check on Root
Device being skipped.
[ 11.689493] systemd[1]: Starting Journal Service...
[ 11.759455] systemd[1]: Condition check resulted in Load Kernel Modules being
skipped.
[ 11.787993] systemd[1]: Condition check resulted in FUSE Control File System
being skipped.
[ 11.828866] systemd[1]: Mounting Kernel Configuration File System...
[ 11.914880] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 11.966070] systemd[1]: Starting Apply Kernel Variables...
[ 12.054372] systemd[1]: Starting udev Coldplug all Devices...
[ 12.134099] systemd[1]: Mounted POSIX Message Queue File System.
[ 12.209604] systemd[1]: Mounted Kernel Debug File System.
[ 12.802440] systemd-journald[201]: Received client request to flush runtime j
ournal.
[ 16.399911] spi_imx 2008000.spi: probed
[ 16.521417] imx-sdma 20ec000.sdma: loaded firmware 3.5
[ 16.607421] random: crng init done
[ 16.614666] random: 7 urandom warning(s) missed due to ratelimiting
[ 16.759305] mc: Linux media interface: v0.10
[ 16.971450] videodev: Linux video capture interface: v2.00
[ 17.040526] Bluetooth: vendor=0x2df, device=0x9142, class=255, fn=2
[ 17.075176] cfg80211: Loading compiled-in X.509 certificates for regulatory d
atabase
[ 17.283253] btmrvl_sdio mmc1:0001:2: Direct firmware load for mrvl/sd8997_uap
sta.bin failed with error -2
[ 17.300374] Bluetooth: request_firmware(firmware) failed, error code = -2
[ 17.311029] Bluetooth: Failed to download firmware!
[ 17.319689] Bluetooth: Downloading firmware failed!
[ 17.469271] pxp 21cc000.pxp: Device registered as /dev/video0
[ 18.221963] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 18.560700] mwifiex_sdio mmc1:0001:1: Direct firmware load for mrvl/sd8997_ua
psta.bin failed with error -2
[ 18.577705] mwifiex_sdio mmc1:0001:1: Failed to get firmware mrvl/sd8997_uaps
ta.bin
[ 18.592880] mwifiex_sdio mmc1:0001:1: info: _mwifiex_fw_dpc: unregister devic
e
