Trying 192.168.56.21... Connected to conserv1. Escape character is '^]'. ser2net port telnet,3001 device serialdev, /dev/serial/by-path/platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1.2.1.4:1.0-port0, 115200n81, local=false [] (Debian GNU/Linux) U-Boot SPL 2015.10-00061-g68849f9 (Jan 08 2016 - 17:01:43) U-Boot 2015.10-00061-g68849f9 (Jan 08 2016 - 17:01:43 +0100) CPU: Freescale i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: UDOO Quad DRAM: 1 GiB MMC: FSL_SDHC: 0 *** Warning - bad CRC, using default environment No panel detected: default to HDMI Display: HDMI (1024x768) In: serial Out: serial Err: serial Net: using phy at 6 FEC [PRIME] Hit any key to stop autoboot: 3  0 => setenv autoload no setenv autoload no => setenv initrd_high 0xffffffff setenv initrd_high 0xffffffff => setenv fdt_high 0xffffffff setenv fdt_high 0xffffffff => dhcp dhcp FEC Waiting for PHY auto negotiation to complete.... done BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 DHCP client bound to address 192.168.6.15 (772 ms) => setenv serverip 192.168.6.2 setenv serverip 192.168.6.2 => tftp 0x12000000 916847/tftp-deploy-akl43wlm/kernel/zImage tftp 0x12000000 916847/tftp-deploy-akl43wlm/kernel/zImage Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '916847/tftp-deploy-akl43wlm/kernel/zImage'. Load address: 0x12000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ### 7.9 MiB/s done Bytes transferred = 16257536 (f81200 hex) => tftp 0x13000000 916847/tftp-deploy-akl43wlm/ramdisk/ramdisk.cpio.gz.uboot tftp 0x13000000 916847/tftp-deploy-akl43wlm/ramdisk/ramdisk.cpio.gz.uboot Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '916847/tftp-deploy-akl43wlm/ramdisk/ramdisk.cpio.gz.uboot'. Load address: 0x13000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################ 7.7 MiB/s done Bytes transferred = 25042442 (17e1e0a hex) => setenv initrd_size ${filesize} setenv initrd_size ${filesize} => tftp 0x18000000 916847/tftp-deploy-akl43wlm/dtb/imx6q-udoo.dtb tftp 0x18000000 916847/tftp-deploy-akl43wlm/dtb/imx6q-udoo.dtb Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '916847/tftp-deploy-akl43wlm/dtb/imx6q-udoo.dtb'. Load address: 0x18000000 Loading: *### 5.8 MiB/s done Bytes transferred = 36482 (8e82 hex) => setenv bootargs 'console=ttymxc1,115200n8 root=/dev/ram0 console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp' setenv bootargs 'console=ttymxc1,115200n8 root=/dev/ram0 console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp' => bootz 0x12000000 0x13000000 0x18000000 bootz 0x12000000 0x13000000 0x18000000 Kernel image @ 0x12000000 [ 0x000000 - 0xf81200 ] ## Loading init Ramdisk from Legacy Image at 13000000 ... Image Name: Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 25042378 Bytes = 23.9 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 18000000 Booting using the fdt blob at 0x18000000 Using Device Tree in place at 18000000, end 1800be81 Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 6.12.0-rc5-next-20241031 (KernelCI@build-j358020-arm-gcc-12-multi-v7-defconfig-kselftest-q5dhm) (arm-linux-gnueabihf-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP Thu Oct 31 07:32:48 UTC 2024 [ 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: Udoo i.MX6 Quad Board [ 0.000000] earlycon: ec_imx21 at MMIO 0x021e8000 (options '') [ 0.000000] printk: legacy bootconsole [ec_imx21] enabled [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 64 MiB at 0x4c000000 on node -1 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000010000000-0x000000003fffffff] [ 0.000000] Normal empty [ 0.000000] HighMem [mem 0x0000000040000000-0x000000004fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000010000000-0x000000004fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000010000000-0x000000004fffffff] [ 0.000000] OF: reserved mem: Reserved memory: No reserved-memory node in the DT [ 0.000000] percpu: Embedded 19 pages/cpu s48204 r8192 d21428 u77824 [ 0.000000] Kernel command line: console=ttymxc1,115200n8 root=/dev/ram0 console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp <6>[ 0.000000] printk: log buffer data + meta data: 131072 + 409600 = 540672 bytes <6>[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear) <6>[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear) <6>[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 262144 <6>[ 0.000000] allocated 1048576 bytes of page_ext <6>[ 0.000000] mem auto-init: stack:all(zero), heap alloc:on, heap free:on <6>[ 0.000000] mem auto-init: clearing system memory may take some time... <6>[ 0.000000] stackdepot: allocating hash table via alloc_large_system_hash <6>[ 0.000000] stackdepot hash table entries: 65536 (order: 7, 524288 bytes, linear) <4>[ 0.000000] ********************************************************** <4>[ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** <4>[ 0.000000] ** ** <4>[ 0.000000] ** This system shows unhashed kernel memory addresses ** <4>[ 0.000000] ** via the console, logs, and other interfaces. This ** <4>[ 0.000000] ** might reduce the security of your system. ** <4>[ 0.000000] ** ** <4>[ 0.000000] ** If you see this message and you are not debugging ** <4>[ 0.000000] ** the kernel, report this immediately to your system ** <4>[ 0.000000] ** administrator! ** <4>[ 0.000000] ** ** <4>[ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** <4>[ 0.000000] ********************************************************** <6>[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.000000] ftrace: allocating 71117 entries in 209 pages <6>[ 0.000000] ftrace: allocated 209 pages with 4 groups <6>[ 0.000000] trace event string verifier disabled <6>[ 0.000000] rcu: Hierarchical RCU implementation. <6>[ 0.000000] rcu: RCU event tracing is enabled. <6>[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=4. <6>[ 0.000000] Rude variant of Tasks RCU enabled. <6>[ 0.000000] Tracing variant of Tasks RCU enabled. <6>[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies. <6>[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 <6>[ 0.000000] RCU Tasks Rude: Setting shift to 2 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=4. <6>[ 0.000000] RCU Tasks Trace: Setting shift to 2 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=4. <6>[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 <6>[ 0.000000] L2C-310 errata 752271 769419 enabled <6>[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9 <6>[ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9 <6>[ 0.000000] L2C-310 ID prefetch enabled, offset 16 lines <6>[ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled <6>[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB <6>[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x76470001 <6>[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. <6>[ 0.000000] Switching to timer-based delay loop, resolution 333ns <6>[ 0.000001] sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 715827882841ns <6>[ 0.008458] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns <6>[ 0.022402] Console: colour dummy device 80x30 <6>[ 0.024387] Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=3000) <6>[ 0.034654] CPU: Testing write buffer coherency: ok <6>[ 0.039787] CPU0: Spectre v2: using BPIALL workaround <6>[ 0.045090] pid_max: default: 32768 minimum: 301 <6>[ 0.050772] LSM: initializing lsm=capability,landlock,bpf,ima <6>[ 0.056171] landlock: Up and running. <6>[ 0.059977] LSM support for eBPF active <6>[ 0.064759] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) <6>[ 0.071543] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) <6>[ 0.085065] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 <6>[ 0.093236] Setting up static identity map for 0x10300000 - 0x103000ac <6>[ 0.099163] rcu: Hierarchical SRCU implementation. <6>[ 0.102258] rcu: Max phase no-delay instances is 400. <6>[ 0.108812] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level <6>[ 0.131088] EFI services will not be available. <6>[ 0.134439] smp: Bringing up secondary CPUs ... <4>[ 0.140476] ------------[ cut here ]------------ <4>[ 0.140488] WARNING: CPU: 1 PID: 0 at kernel/time/clockevents.c:455 twd_timer_setup+0x124/0x2a8 <4>[ 0.140527] Modules linked in: <4>[ 0.140540] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc5-next-20241031 #1 <4>[ 0.140557] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) <4>[ 0.140566] Call trace: <4>[ 0.140574] unwind_backtrace from show_stack+0x18/0x1c <4>[ 0.140609] show_stack from dump_stack_lvl+0x88/0xb8 <4>[ 0.140633] dump_stack_lvl from __warn+0x84/0x134 <4>[ 0.140664] __warn from warn_slowpath_fmt+0x190/0x198 <4>[ 0.140696] warn_slowpath_fmt from twd_timer_setup+0x124/0x2a8 <4>[ 0.140727] twd_timer_setup from twd_timer_starting_cpu+0x10/0x18 <4>[ 0.140755] twd_timer_starting_cpu from cpuhp_invoke_callback+0x2a8/0x7f4 <4>[ 0.140782] cpuhp_invoke_callback from __cpuhp_invoke_callback_range+0x74/0x100 <4>[ 0.140803] __cpuhp_invoke_callback_range from notify_cpu_starting+0x70/0x98 <4>[ 0.140825] notify_cpu_starting from secondary_start_kernel+0xf8/0x158 <4>[ 0.140852] secondary_start_kernel from 0x10301ca0 <4>[ 0.140878] ---[ end trace 0000000000000000 ]--- <6>[ 0.140909] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 <6>[ 0.140928] CPU1: Spectre v2: using BPIALL workaround <6>[ 0.260500] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 <6>[ 0.260520] CPU2: Spectre v2: using BPIALL workaround <6>[ 0.271557] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 <6>[ 0.271578] CPU3: Spectre v2: using BPIALL workaround <6>[ 0.280296] smp: Brought up 1 node, 4 CPUs <6>[ 0.284505] SMP: Total of 4 processors activated (24.00 BogoMIPS). <6>[ 0.290927] CPU: All CPU(s) started in SVC mode. <6>[ 0.298476] Memory: 901896K/1048576K available (21504K kernel code, 3745K rwdata, 10428K rodata, 2048K init, 517K bss, 75560K reserved, 65536K cma-reserved, 196608K highmem) <6>[ 0.313507] devtmpfs: initialized <6>[ 0.409772] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4 <6>[ 0.416359] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns <6>[ 0.424929] futex hash table entries: 1024 (order: 4, 65536 bytes, linear) <6>[ 0.484631] pinctrl core: initialized pinctrl subsystem <6>[ 0.499107] DMI not present or invalid. <6>[ 0.504434] NET: Registered PF_NETLINK/PF_ROUTE protocol family <6>[ 0.518131] DMA: preallocated 256 KiB pool for atomic coherent allocations <6>[ 0.528034] audit: initializing netlink subsys (disabled) <5>[ 0.531908] audit: type=2000 audit(0.400:1): state=initialized audit_enabled=0 res=1 <6>[ 0.542604] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.542893] cpuidle: using governor menu <6>[ 0.552529] CPU identified as i.MX6Q, silicon rev 1.2 <6>[ 0.571065] platform soc: Fixed dependency cycle(s) with /soc/bus@2000000/gpc@20dc000 <6>[ 0.578702] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.584101] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2400000 <3>[ 0.619330] debugfs: Directory 'dummy-anatop@0x020c8000' with parent 'regmap' already present! <4>[ 0.625491] mxs_phy 20c9000.usbphy: supply phy-3p0 not found, using dummy regulator <4>[ 0.636524] mxs_phy 20ca000.usbphy: supply phy-3p0 not found, using dummy regulator <6>[ 0.648541] platform 20dc000.gpc: Fixed dependency cycle(s) with /soc/bus@2000000/clock-controller@20c4000 <6>[ 0.659078] platform 20e0000.iomuxc-gpr:ipu1_csi0_mux: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.666722] platform 20e0000.iomuxc-gpr:ipu2_csi1_mux: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.694806] platform 20e0000.iomuxc-gpr:ipu1_csi0_mux: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.702310] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.709978] platform 2400000.ipu: Fixed dependency cycle(s) with /soc/hdmi@120000 <6>[ 0.717733] platform 2400000.ipu: Fixed dependency cycle(s) with /soc/bus@2000000/iomuxc-gpr@20e0000/ipu1_csi0_mux <6>[ 0.733347] platform 20e0000.iomuxc-gpr:ipu2_csi1_mux: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.740775] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.748529] platform 2800000.ipu: Fixed dependency cycle(s) with /soc/hdmi@120000 <6>[ 0.756241] platform 2800000.ipu: Fixed dependency cycle(s) with /soc/bus@2000000/iomuxc-gpr@20e0000/ipu2_csi1_mux <6>[ 0.774603] No ATAGs? <6>[ 0.774858] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. <6>[ 0.782550] hw-breakpoint: maximum watchpoint size is 4 bytes. <6>[ 0.798835] imx6q-pinctrl 20e0000.pinctrl: initialized IMX pinctrl driver <6>[ 0.828564] Serial: AMBA PL011 UART driver <6>[ 0.835720] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible. <4>[ 0.858234] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.877316] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.895572] gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.913738] gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.931867] gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.950265] gpio gpiochip5: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.968471] gpio gpiochip6: Static allocation of GPIO base is deprecated, use dynamic allocation. <6>[ 1.009660] iommu: Default domain type: Translated <6>[ 1.011915] iommu: DMA domain TLB invalidation policy: strict mode <5>[ 1.028820] SCSI subsystem initialized <6>[ 1.033720] usbcore: registered new interface driver usbfs <6>[ 1.036988] usbcore: registered new interface driver hub <6>[ 1.042592] usbcore: registered new device driver usb <4>[ 1.049028] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests (id=vbus) <4>[ 1.058070] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests (id=vbus) <6>[ 1.072400] i2c i2c-1: IMX I2C adapter registered <6>[ 1.077759] i2c i2c-2: IMX I2C adapter registered <6>[ 1.083332] pps_core: LinuxPPS API ver. 1 registered <6>[ 1.085734] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <6>[ 1.095319] PTP clock support registered <6>[ 1.100075] EDAC MC: Ver: 3.0.0 <6>[ 1.105402] scmi_core: SCMI protocol bus registered <6>[ 1.119964] NET: Registered PF_ATMPVC protocol family <6>[ 1.122459] NET: Registered PF_ATMSVC protocol family <6>[ 1.129110] nfc: nfc_init: NFC Core ver 0.1 <6>[ 1.132815] NET: Registered PF_NFC protocol family <6>[ 1.138220] vgaarb: loaded <6>[ 1.142236] clocksource: Switched to clocksource mxc_timer1 <6>[ 1.216318] NET: Registered PF_INET protocol family <6>[ 1.219105] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) <6>[ 1.230935] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) <6>[ 1.236766] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) <6>[ 1.244877] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear) <6>[ 1.252856] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear) <6>[ 1.260476] TCP: Hash tables configured (established 8192 bind 8192) <6>[ 1.268271] MPTCP token hash table entries: 1024 (order: 2, 16384 bytes, linear) <6>[ 1.274747] UDP hash table entries: 512 (order: 2, 16384 bytes, linear) <6>[ 1.281454] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear) <6>[ 1.289625] NET: Registered PF_UNIX/PF_LOCAL protocol family <6>[ 1.298545] RPC: Registered named UNIX socket transport module. <6>[ 1.301938] RPC: Registered udp transport module. <6>[ 1.306874] RPC: Registered tcp transport module. <6>[ 1.311827] RPC: Registered tcp-with-tls transport module. <6>[ 1.317569] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 1.324282] NET: Registered PF_XDP protocol family <6>[ 1.329348] PCI: CLS 0 bytes, default 64 <5>[ 1.344820] Initialise system trusted keyrings <6>[ 1.347888] workingset: timestamp_bits=14 max_order=18 bucket_order=4 <6>[ 1.378689] Trying to unpack rootfs image as initramfs... <6>[ 1.381724] rootfs image is not initramfs (invalid magic at start of compressed archive); looks like an initrd <6>[ 1.420180] squashfs: version 4.0 (2009/01/31) Phillip Lougher <5>[ 1.433621] NFS: Registering the id_resolver key type <5>[ 1.436283] Key type id_resolver registered <5>[ 1.440584] Key type id_legacy registered <6>[ 1.445032] nfs4filelayout_init: NFSv4 File Layout Driver Registering... <6>[ 1.451792] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... <6>[ 1.689013] NET: Registered PF_ALG protocol family <5>[ 1.691302] Key type asymmetric registered <5>[ 1.695607] Asymmetric key parser 'x509' registered <6>[ 1.701339] bounce: pool size: 64 pages <6>[ 1.705406] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) <6>[ 1.712496] io scheduler mq-deadline registered <6>[ 1.717288] io scheduler kyber registered <6>[ 1.721678] io scheduler bfq registered <6>[ 1.804990] Freeing initrd memory: 24456K <4>[ 1.806977] test_firmware: interface ready <6>[ 1.879070] ledtrig-cpu: registered to indicate activity on CPUs <6>[ 1.965783] mxs-dma 110000.dma-controller: initialized <6>[ 1.995569] imx-sdma 20ec000.dma-controller: external firmware not found, using ROM firmware <6>[ 2.370310] Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled <6>[ 2.402954] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 267, base_baud = 5000000) is a IMX <6>[ 2.409198] printk: console [ttymxc1] enabled <6>[ 2.409198] printk: console [ttymxc1] enabled <6>[ 2.418311] printk: legacy bootconsole [ec_imx21] disabled <6>[ 2.418311] printk: legacy bootconsole [ec_imx21] disabled <6>[ 2.436737] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 268, base_baud = 5000000) is a IMX <6>[ 2.448855] msm_serial: driver initialized <6>[ 2.450109] SuperH (H)SCI(F) driver initialized <6>[ 2.450804] STMicroelectronics ASC driver initialized <6>[ 2.451410] STM32 USART driver initialized <6>[ 2.477190] [drm] Initialized vgem 1.0.0 for vgem on minor 0 <6>[ 2.546286] brd: module loaded <6>[ 2.597536] loop: module loaded <6>[ 2.599166] lkdtm: No crash points registered, enable through debugfs <6>[ 2.613667] ahci-imx 2200000.sata: fsl,transmit-level-mV not specified, using 00000024 <6>[ 2.613700] ahci-imx 2200000.sata: fsl,transmit-boost-mdB not specified, using 00000480 <6>[ 2.613716] ahci-imx 2200000.sata: fsl,transmit-atten-16ths not specified, using 00002000 <6>[ 2.613729] ahci-imx 2200000.sata: fsl,receive-eq-mdB not specified, using 05000000 <4>[ 2.614153] ahci-imx 2200000.sata: supply ahci not found, using dummy regulator <4>[ 2.615370] ahci-imx 2200000.sata: supply phy not found, using dummy regulator <4>[ 2.615888] ahci-imx 2200000.sata: supply target not found, using dummy regulator <3>[ 22.156204] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 22.162407] rcu: 3-...!: (5 GPs behind) idle=0230/0/0x0 softirq=0/0 fqs=18 (false positive?) <3>[ 22.171216] rcu: (detected by 0, t=21002 jiffies, g=-1167, q=406 ncpus=4) <6>[ 22.178369] Sending NMI from CPU 0 to CPUs 3: <4>[ 22.183008] NMI backtrace for cpu 3 sk ** replaying previous printk message ** <4>[ 22.183008] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x20/0xc0 <3>[ 22.184005] rcu: rcu_sched kthread timer wakeup didn't happen for 20776 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 22.210018] rcu: Possible timer handling issue on cpu=1 timer-softirq=0 <3>[ 22.216990] rcu: rcu_sched kthread starved for 20779 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 <3>[ 22.227613] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 22.236839] rcu: RCU grace-period kthread stack dump: <6>[ 22.242159] task:rcu_sched state:I stack:0 pid:16 tgid:16 ppid:2 flags:0x00000000 <6>[ 22.251750] Call trace: <6>[ 22.251760] __schedule from schedule+0x28/0x150 <6>[ 22.259465] schedule from schedule_timeout+0x8c/0xfc <6>[ 22.264809] schedule_timeout from rcu_gp_fqs_loop+0x138/0x610 <6>[ 22.270936] rcu_gp_fqs_loop from rcu_gp_kthread+0x178/0x210 <6>[ 22.276881] rcu_gp_kthread from kthread+0xe8/0x104 <6>[ 22.282050] kthread from ret_from_fork+0x14/0x28 <6>[ 22.287036] Exception stack(0xf087dfb0 to 0xf087dff8) <6>[ 22.292362] dfa0: 00000000 00000000 00000000 00000000 <6>[ 22.300815] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 22.309264] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 <3>[ 22.316148] rcu: Stack dump where RCU GP kthread last ran: <6>[ 22.321901] Sending NMI from CPU 0 to CPUs 1: <4>[ 22.326533] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x20/0xc0 # # # # #