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 (776 ms) => setenv serverip 192.168.6.2 setenv serverip 192.168.6.2 => tftp 0x12000000 917163/tftp-deploy-_099fi6f/kernel/zImage tftp 0x12000000 917163/tftp-deploy-_099fi6f/kernel/zImage Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '917163/tftp-deploy-_099fi6f/kernel/zImage'. Load address: 0x12000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# #### 7.9 MiB/s done Bytes transferred = 11502080 (af8200 hex) => tftp 0x13000000 917163/tftp-deploy-_099fi6f/ramdisk/ramdisk.cpio.gz.uboot tftp 0x13000000 917163/tftp-deploy-_099fi6f/ramdisk/ramdisk.cpio.gz.uboot Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '917163/tftp-deploy-_099fi6f/ramdisk/ramdisk.cpio.gz.uboot'. Load address: 0x13000000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# #################################### 7.4 MiB/s done Bytes transferred = 14832061 (e251bd hex) => setenv initrd_size ${filesize} setenv initrd_size ${filesize} => tftp 0x18000000 917163/tftp-deploy-_099fi6f/dtb/imx6q-udoo.dtb tftp 0x18000000 917163/tftp-deploy-_099fi6f/dtb/imx6q-udoo.dtb Using FEC device TFTP from server 192.168.6.2; our IP address is 192.168.6.15 Filename '917163/tftp-deploy-_099fi6f/dtb/imx6q-udoo.dtb'. Load address: 0x18000000 Loading: *### 5 MiB/s done Bytes transferred = 36482 (8e82 hex) => setenv bootargs 'console=ttymxc1,115200n8 root=/dev/nfs rw nfsroot=192.168.6.2:/var/lib/lava/dispatcher/tmp/917163/extract-nfsrootfs-xoyk602x,tcp,hard console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp' setenv bootargs 'console=ttymxc1,115200n8 root=/dev/nfs rw nfsroot=192.168.6.2:/var/lib/lava/dispatcher/tmp/917163/extract-nfsrootfs-xoyk602x,tcp,hard console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp' => bootz 0x12000000 0x13000000 0x18000000 bootz 0x12000000 0x13000000 0x18000000 Kernel image @ 0x12000000 [ 0x000000 - 0xaf8200 ] ## Loading init Ramdisk from Legacy Image at 13000000 ... Image Name: Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 14831997 Bytes = 14.1 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-j358071-arm-gcc-12-multi-v7-defconfig-klsj8) (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 07:52:56 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 17 pages/cpu s39884 r8192 d21556 u69632 [ 0.000000] Kernel command line: console=ttymxc1,115200n8 root=/dev/nfs rw nfsroot=192.168.6.2:/var/lib/lava/dispatcher/tmp/917163/extract-nfsrootfs-xoyk602x,tcp,hard 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] mem auto-init: stack:all(zero), heap alloc:off, heap free:off <6>[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <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] Tracing variant of Tasks RCU enabled. <6>[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. <6>[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_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>[ 0.008439] clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns <6>[ 0.021782] Console: colour dummy device 80x30 <6>[ 0.023702] Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000) <6>[ 0.034095] CPU: Testing write buffer coherency: ok <6>[ 0.039226] CPU0: Spectre v2: using BPIALL workaround <6>[ 0.044522] pid_max: default: 32768 minimum: 301 <6>[ 0.049564] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) <6>[ 0.056979] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) <6>[ 0.065866] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 <6>[ 0.072249] Setting up static identity map for 0x10300000 - 0x103000ac <6>[ 0.079142] rcu: Hierarchical SRCU implementation. <6>[ 0.082713] rcu: Max phase no-delay instances is 1000. <6>[ 0.088591] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level <6>[ 0.099444] EFI services will not be available. <6>[ 0.101730] smp: Bringing up secondary CPUs ... <4>[ 0.107187] ------------[ cut here ]------------ <4>[ 0.107198] WARNING: CPU: 1 PID: 0 at kernel/time/clockevents.c:455 twd_timer_setup+0xf0/0x228 <4>[ 0.107237] Modules linked in: <4>[ 0.107251] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc5-next-20241031 #1 <4>[ 0.107266] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) <4>[ 0.107275] Call trace: <4>[ 0.107288] unwind_backtrace from show_stack+0x10/0x14 <4>[ 0.107320] show_stack from dump_stack_lvl+0x68/0x74 <4>[ 0.107349] dump_stack_lvl from __warn+0x7c/0x12c <4>[ 0.107380] __warn from warn_slowpath_fmt+0x188/0x190 <4>[ 0.107405] warn_slowpath_fmt from twd_timer_setup+0xf0/0x228 <4>[ 0.107431] twd_timer_setup from twd_timer_starting_cpu+0x8/0x10 <4>[ 0.107458] twd_timer_starting_cpu from cpuhp_invoke_callback+0x15c/0x6f4 <4>[ 0.107490] cpuhp_invoke_callback from __cpuhp_invoke_callback_range+0x6c/0xf8 <4>[ 0.107520] __cpuhp_invoke_callback_range from notify_cpu_starting+0x5c/0x68 <4>[ 0.107553] notify_cpu_starting from secondary_start_kernel+0xd8/0x11c <4>[ 0.107584] secondary_start_kernel from 0x10301ae0 <4>[ 0.107605] ---[ end trace 0000000000000000 ]--- <6>[ 0.107632] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 <6>[ 0.107648] CPU1: Spectre v2: using BPIALL workaround <6>[ 0.226125] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 <6>[ 0.226147] CPU2: Spectre v2: using BPIALL workaround <6>[ 0.237245] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 <6>[ 0.237264] CPU3: Spectre v2: using BPIALL workaround <6>[ 0.247593] smp: Brought up 1 node, 4 CPUs <6>[ 0.251810] SMP: Total of 4 processors activated (24.00 BogoMIPS). <6>[ 0.258269] CPU: All CPU(s) started in SVC mode. <6>[ 0.263893] Memory: 926596K/1048576K available (16384K kernel code, 2544K rwdata, 6824K rodata, 2048K init, 429K bss, 53520K reserved, 65536K cma-reserved, 196608K highmem) <6>[ 0.279370] devtmpfs: initialized <6>[ 0.290174] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4 <6>[ 0.295514] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns <6>[ 0.305427] futex hash table entries: 1024 (order: 4, 65536 bytes, linear) <6>[ 0.315806] pinctrl core: initialized pinctrl subsystem <6>[ 0.321842] DMI not present or invalid. <6>[ 0.324145] NET: Registered PF_NETLINK/PF_ROUTE protocol family <6>[ 0.332509] DMA: preallocated 256 KiB pool for atomic coherent allocations <6>[ 0.339752] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.339831] cpuidle: using governor menu <6>[ 0.347774] CPU identified as i.MX6Q, silicon rev 1.2 <6>[ 0.361462] platform soc: Fixed dependency cycle(s) with /soc/bus@2000000/gpc@20dc000 <6>[ 0.367712] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.374485] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2400000 <4>[ 0.390857] mxs_phy 20c9000.usbphy: supply phy-3p0 not found, using dummy regulator <4>[ 0.396594] mxs_phy 20ca000.usbphy: supply phy-3p0 not found, using dummy regulator <6>[ 0.405511] platform 20dc000.gpc: Fixed dependency cycle(s) with /soc/bus@2000000/clock-controller@20c4000 <6>[ 0.414756] platform 20e0000.iomuxc-gpr:ipu1_csi0_mux: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.423638] platform 20e0000.iomuxc-gpr:ipu2_csi1_mux: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.438768] platform 20e0000.iomuxc-gpr:ipu1_csi0_mux: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.445629] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2400000 <6>[ 0.453338] platform 2400000.ipu: Fixed dependency cycle(s) with /soc/hdmi@120000 <6>[ 0.461079] platform 2400000.ipu: Fixed dependency cycle(s) with /soc/bus@2000000/iomuxc-gpr@20e0000/ipu1_csi0_mux <6>[ 0.476101] platform 20e0000.iomuxc-gpr:ipu2_csi1_mux: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.482923] platform 120000.hdmi: Fixed dependency cycle(s) with /soc/ipu@2800000 <6>[ 0.490767] platform 2800000.ipu: Fixed dependency cycle(s) with /soc/hdmi@120000 <6>[ 0.498431] platform 2800000.ipu: Fixed dependency cycle(s) with /soc/bus@2000000/iomuxc-gpr@20e0000/ipu2_csi1_mux <6>[ 0.511714] No ATAGs? <6>[ 0.511960] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. <6>[ 0.519765] hw-breakpoint: maximum watchpoint size is 4 bytes. <6>[ 0.528509] imx6q-pinctrl 20e0000.pinctrl: initialized IMX pinctrl driver <6>[ 0.540298] Serial: AMBA PL011 UART driver <4>[ 0.578722] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.587096] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.595960] gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.604983] gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.614199] gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.623322] gpio gpiochip5: Static allocation of GPIO base is deprecated, use dynamic allocation. <4>[ 0.632522] gpio gpiochip6: Static allocation of GPIO base is deprecated, use dynamic allocation. <6>[ 0.649216] iommu: Default domain type: Translated <6>[ 0.651421] iommu: DMA domain TLB invalidation policy: strict mode <5>[ 0.660056] SCSI subsystem initialized <6>[ 0.662391] usbcore: registered new interface driver usbfs <6>[ 0.667671] usbcore: registered new interface driver hub <6>[ 0.673210] usbcore: registered new device driver usb <4>[ 0.678752] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests (id=vbus) <4>[ 0.687968] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests (id=vbus) <6>[ 0.698704] i2c i2c-1: IMX I2C adapter registered <6>[ 0.702643] i2c i2c-2: IMX I2C adapter registered <6>[ 0.708214] pps_core: LinuxPPS API ver. 1 registered <6>[ 0.712235] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <6>[ 0.721667] PTP clock support registered <6>[ 0.726026] EDAC MC: Ver: 3.0.0 <6>[ 0.729678] scmi_core: SCMI protocol bus registered <6>[ 0.737127] vgaarb: loaded <6>[ 0.744918] clocksource: Switched to clocksource mxc_timer1 <6>[ 0.765892] NET: Registered PF_INET protocol family <6>[ 0.768453] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) <6>[ 0.777713] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) <6>[ 0.784471] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) <6>[ 0.792510] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear) <6>[ 0.800552] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear) <6>[ 0.808211] TCP: Hash tables configured (established 8192 bind 8192) <6>[ 0.814677] UDP hash table entries: 512 (order: 2, 16384 bytes, linear) <6>[ 0.821503] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear) <6>[ 0.828948] NET: Registered PF_UNIX/PF_LOCAL protocol family <6>[ 0.835471] RPC: Registered named UNIX socket transport module. <6>[ 0.840833] RPC: Registered udp transport module. <6>[ 0.845833] RPC: Registered tcp transport module. <6>[ 0.850750] RPC: Registered tcp-with-tls transport module. <6>[ 0.856511] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 0.863201] PCI: CLS 0 bytes, default 64 <5>[ 0.869207] Initialise system trusted keyrings <6>[ 0.872503] workingset: timestamp_bits=30 max_order=18 bucket_order=0 <6>[ 0.879203] squashfs: version 4.0 (2009/01/31) Phillip Lougher <6>[ 0.885337] Trying to unpack rootfs image as initramfs... <5>[ 0.925846] NFS: Registering the id_resolver key type <5>[ 0.928386] Key type id_resolver registered <5>[ 0.932776] Key type id_legacy registered <6>[ 0.937156] nfs4filelayout_init: NFSv4 File Layout Driver Registering... <6>[ 0.944002] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... <5>[ 0.952234] Key type asymmetric registered <5>[ 0.956056] Asymmetric key parser 'x509' registered <6>[ 0.961258] bounce: pool size: 64 pages <6>[ 0.965343] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) <6>[ 0.972888] io scheduler mq-deadline registered <6>[ 0.977733] io scheduler kyber registered <6>[ 0.981986] io scheduler bfq registered <6>[ 1.016227] ledtrig-cpu: registered to indicate activity on CPUs <6>[ 1.045990] mxs-dma 110000.dma-controller: initialized <6>[ 1.135383] Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled <6>[ 1.146263] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 267, base_baud = 5000000) is a IMX <6>[ 1.152453] printk: console [ttymxc1] enabled <6>[ 1.152453] printk: console [ttymxc1] enabled <6>[ 1.161706] printk: legacy bootconsole [ec_imx21] disabled <6>[ 1.161706] printk: legacy bootconsole [ec_imx21] disabled <6>[ 1.175263] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 268, base_baud = 5000000) is a IMX <6>[ 1.186340] msm_serial: driver initialized <6>[ 1.186916] SuperH (H)SCI(F) driver initialized <6>[ 1.187364] STMicroelectronics ASC driver initialized <6>[ 1.187549] STM32 USART driver initialized <6>[ 1.214768] brd: module loaded <6>[ 1.225657] loop: module loaded <6>[ 1.229317] ahci-imx 2200000.sata: fsl,transmit-level-mV not specified, using 00000024 <6>[ 1.229358] ahci-imx 2200000.sata: fsl,transmit-boost-mdB not specified, using 00000480 <6>[ 1.229375] ahci-imx 2200000.sata: fsl,transmit-atten-16ths not specified, using 00002000 <6>[ 1.229387] ahci-imx 2200000.sata: fsl,receive-eq-mdB not specified, using 05000000 <4>[ 1.229488] ahci-imx 2200000.sata: supply ahci not found, using dummy regulator <4>[ 1.229652] ahci-imx 2200000.sata: supply phy not found, using dummy regulator <4>[ 1.229717] ahci-imx 2200000.sata: supply target not found, using dummy regulator <6>[ 1.963616] Freeing initrd memory: 14488K <6>[ 1.968276] imx-sdma 20ec000.dma-controller: external firmware not found, using ROM firmware <3>[ 21.784901] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 21.791105] rcu: 3-...!: (6 GPs behind) idle=0ce8/0/0x0 softirq=0/0 fqs=3 (false positive?) <3>[ 21.799825] rcu: (detected by 0, t=2102 jiffies, g=-1167, q=1730 ncpus=4) <6>[ 21.806976] Sending NMI from CPU 0 to CPUs 3: <4>[ 21.811616] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 21.812612] rcu: rcu_sched kthread timer wakeup didn't happen for 2089 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 21.831932] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 21.838901] rcu: rcu_sched kthread starved for 2090 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 21.849437] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 21.858662] rcu: RCU grace-period kthread stack dump: <6>[ 21.863980] task:rcu_sched state:I stack:0 pid:14 tgid:14 ppid:2 flags:0x00000000 <6>[ 21.873571] Call trace: <6>[ 21.873586] __schedule from schedule+0x20/0x12c <6>[ 21.881279] schedule from schedule_timeout+0x84/0xf4 <6>[ 21.886616] schedule_timeout from rcu_gp_fqs_loop+0x130/0x5dc <6>[ 21.892741] rcu_gp_fqs_loop from rcu_gp_kthread+0x170/0x208 <6>[ 21.898687] rcu_gp_kthread from kthread+0xe0/0xfc <6>[ 21.903774] kthread from ret_from_fork+0x14/0x28 <6>[ 21.908766] Exception stack(0xf0875fb0 to 0xf0875ff8) <6>[ 21.914092] 5fa0: 00000000 00000000 00000000 00000000 <6>[ 21.922542] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 21.930992] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 <3>[ 21.937878] rcu: Stack dump where RCU GP kthread last ran: <6>[ 21.943630] Sending NMI from CPU 0 to CPUs 2: <4>[ 21.948263] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 42.964900] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 42.971095] rcu: 1-...!: (8 GPs behind) idle=4b68/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 42.979811] rcu: 2-...!: (0 ticks this GP) idle=4a98/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 42.988786] rcu: 3-...!: (7 GPs behind) idle=0cf0/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 42.997501] rcu: (detected by 0, t=2102 jiffies, g=-1163, q=1445 ncpus=4) <6>[ 43.004649] Sending NMI from CPU 0 to CPUs 1: <4>[ 43.009282] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x1c/0xb0 <6>[ 43.010280] Sending NMI from CPU 0 to CPUs 2: <4>[ 43.022738] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x1c/0xb0 <6>[ 43.023735] Sending NMI from CPU 0 to CPUs 3: <4>[ 43.036191] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 43.037190] rcu: rcu_sched kthread timer wakeup didn't happen for 2101 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 43.056509] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 43.063476] rcu: rcu_sched kthread starved for 2102 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 43.074010] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 43.083234] rcu: RCU grace-period kthread stack dump: <6>[ 43.088551] task:rcu_sched state:I stack:0 pid:14 tgid:14 ppid:2 flags:0x00000000 <6>[ 43.098138] Call trace: <6>[ 43.098148] __schedule from schedule+0x20/0x12c <6>[ 43.105840] schedule from schedule_timeout+0x84/0xf4 <6>[ 43.111175] schedule_timeout from rcu_gp_fqs_loop+0x130/0x5dc <6>[ 43.117296] rcu_gp_fqs_loop from rcu_gp_kthread+0x170/0x208 <6>[ 43.123242] rcu_gp_kthread from kthread+0xe0/0xfc <6>[ 43.128326] kthread from ret_from_fork+0x14/0x28 <6>[ 43.133315] Exception stack(0xf0875fb0 to 0xf0875ff8) <6>[ 43.138639] 5fa0: 00000000 00000000 00000000 00000000 <6>[ 43.147090] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 43.155537] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 <3>[ 106.014899] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 106.021093] rcu: 2-...!: (0 ticks this GP) idle=4aa8/0/0x0 softirq=0/0 fqs=1 (false positive?) <3>[ 106.030072] rcu: (detected by 0, t=8407 jiffies, g=-1163, q=1445 ncpus=4) <6>[ 106.037219] Sending NMI from CPU 0 to CPUs 2: <4>[ 106.041850] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 106.042849] rcu: rcu_sched kthread timer wakeup didn't happen for 6285 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 106.062167] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 106.069135] rcu: rcu_sched kthread starved for 6286 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 106.079669] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 106.088894] rcu: RCU grace-period kthread stack dump: <6>[ 106.094212] task:rcu_sched state:I stack:0 pid:14 tgid:14 ppid:2 flags:0x00000000 <6>[ 106.103798] Call trace: <6>[ 106.103806] __schedule from schedule+0x20/0x12c <6>[ 106.111498] schedule from schedule_timeout+0x84/0xf4 <6>[ 106.116830] schedule_timeout from rcu_gp_fqs_loop+0x130/0x5dc <6>[ 106.122949] rcu_gp_fqs_loop from rcu_gp_kthread+0x170/0x208 <6>[ 106.128891] rcu_gp_kthread from kthread+0xe0/0xfc <6>[ 106.133972] kthread from ret_from_fork+0x14/0x28 <6>[ 106.138960] Exception stack(0xf0875fb0 to 0xf0875ff8) <6>[ 106.144285] 5fa0: 00000000 00000000 00000000 00000000 <6>[ 106.152735] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 106.161183] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 <3>[ 127.184898] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 127.191093] rcu: 1-...!: (9 GPs behind) idle=4b70/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 127.199811] rcu: 2-...!: (0 ticks this GP) idle=4ab8/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 127.208787] rcu: 3-...!: (8 GPs behind) idle=0cf8/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 127.217500] rcu: (detected by 0, t=2102 jiffies, g=-1159, q=1445 ncpus=4) <6>[ 127.224646] Sending NMI from CPU 0 to CPUs 1: <4>[ 127.229277] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x1c/0xb0 <6>[ 127.230275] Sending NMI from CPU 0 to CPUs 2: <4>[ 127.242733] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x1c/0xb0 <6>[ 127.243730] Sending NMI from CPU 0 to CPUs 3: <4>[ 127.256186] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 127.257185] rcu: rcu_sched kthread timer wakeup didn't happen for 2101 jiffies! g-1159 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 127.276502] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 127.283471] rcu: rcu_sched kthread starved for 2102 jiffies! g-1159 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 127.294006] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 127.303231] rcu: RCU grace-period kthread stack dump: <6>[ 127.308548] task:rcu_sched state:I stack:0 pid:14 tgid:14 ppid:2 flags:0x00000000 <6>[ 127.318135] Call trace: <6>[ 127.318143] __schedule from schedule+0x20/0x12c <6>[ 127.325834] schedule from schedule_timeout+0x84/0xf4 <6>[ 127.331167] schedule_timeout from rcu_gp_fqs_loop+0x130/0x5dc <6>[ 127.337286] rcu_gp_fqs_loop from rcu_gp_kthread+0x170/0x208 <6>[ 127.343229] rcu_gp_kthread from kthread+0xe0/0xfc <6>[ 127.348310] kthread from ret_from_fork+0x14/0x28 <6>[ 127.353298] Exception stack(0xf0875fb0 to 0xf0875ff8) <6>[ 127.358621] 5fa0: 00000000 00000000 00000000 00000000 <6>[ 127.367071] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 127.375519] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 # # <3>[ 190.234899] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 190.241093] rcu: 2-...!: (0 ticks this GP) idle=4ac8/0/0x0 softirq=0/0 fqs=1 (false positive?) <3>[ 190.250074] rcu: (detected by 0, t=8407 jiffies, g=-1159, q=1445 ncpus=4) <6>[ 190.257221] Sending NMI from CPU 0 to CPUs 2: <4>[ 190.261852] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x1c/0xb0 <3>[ 190.262850] rcu: rcu_sched kthread timer wakeup didn't happen for 6285 jiffies! g-1159 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 190.282169] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 190.289138] rcu: rcu_sched kthread starved for 6286 jiffies! g-1159 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 190.299671] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 190.308895] rcu: RCU grace-period kthread stack dump: <6>[ 190.314211] task:rcu_sched state:I stack:0 pid:14 tgid:14 ppid:2 flags:0x00000000 <6>[ 190.323797] Call trace: <6>[ 190.323805] __schedule from schedule+0x20/0x12c <6>[ 190.331497] schedule from schedule_timeout+0x84/0xf4 <6>[ 190.336828] schedule_timeout from rcu_gp_fqs_loop+0x130/0x5dc <6>[ 190.342947] rcu_gp_fqs_loop from rcu_gp_kthread+0x170/0x208 <6>[ 190.348890] rcu_gp_kthread from kthread+0xe0/0xfc <6>[ 190.353971] kthread from ret_from_fork+0x14/0x28 <6>[ 190.358958] Exception stack(0xf0875fb0 to 0xf0875ff8) <6>[ 190.364282] 5fa0: 00000000 00000000 00000000 00000000 <6>[ 190.372731] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <6>[ 190.381179] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 # # #