connecting to NetworkSerialPort(target=Target(name='sifive_fu540', env=None), name='USBSerialPort', state=, avail=True, host='nuc-2', port=49085, speed=115200, protocol='rfc2217') calling microcom -s 115200 -t nuc-2:49085 connected to 192.168.0.2 (port 49085) Escape character: Ctrl-\ Type the escape character to get to the prompt. SiFive FSBL: 2018-03-20 HiFive-U serial #: 0000013c OpenSBI v1.1 ____ _____ ____ _____ / __ \ / ____| _ \_ _| | | | |_ __ ___ _ __ | (___ | |_) || | | | | | '_ \ / _ \ '_ \ \___ \| _ < | | | |__| | |_) | __/ | | |____) | |_) || |_ \____/| .__/ \___|_| |_|_____/|____/_____| | | |_| Platform Name : sifive,hifive-unleashed-a00 Platform Features : medeleg Platform HART Count : 5 Platform IPI Device : aclint-mswi Platform Timer Device : aclint-mtimer @ 1000000Hz Platform Console Device : sifive_uart Platform HSM Device : --- Platform Reboot Device : gpio-restart Platform Shutdown Device : --- Firmware Base : 0x80000000 Firmware Size : 320 KB Runtime SBI Version : 1.0 Domain0 Name : root Domain0 Boot HART : 1 Domain0 HARTs : 0*,1*,2*,3*,4* Domain0 Region00 : 0x0000000002000000-0x000000000200ffff (I) Domain0 Region01 : 0x0000000080000000-0x000000008007ffff () Domain0 Region02 : 0x0000000000000000-0xffffffffffffffff (R,W,X) Domain0 Next Address : 0x0000000080200000 Domain0 Next Arg1 : 0x0000000082200000 Domain0 Next Mode : S-mode Domain0 SysReset : yes Boot HART ID : 1 Boot HART Domain : root Boot HART Priv Version : v1.10 Boot HART Base ISA : rv64imafdc Boot HART ISA Extensions : none Boot HART PMP Count : 8 Boot HART PMP Granularity : 4 Boot HART PMP Address Bits: 36 Boot HART MHPM Count : 2 Boot HART MIDELEG : 0x0000000000000222 Boot HART MEDELEG : 0x000000000000b109 U-Boot 2022.07 (Aug 25 2022 - 14:57:58 -0700) CPU: rv64imac Model: SiFive HiFive Unleashed A00 DRAM: 8 GiB Core: 36 devices, 22 uclasses, devicetree: separate MMC: spi@10050000:mmc@0: 0 Loading Environment from SPIFlash... SF: Detected is25wp256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB *** Warning - bad CRC, using default environment In: serial@10010000 Out: serial@10010000 Err: serial@10010000 Net: sifive-reset reset: failed to get cltx_reset reset eth0: ethernet@10090000 Hit any key to stop autoboot: 2  0 => setenv autoload no => setenv initrd_high 0xffffffffffffffff => setenv fdt_high 0xffffffffffffffff => dhcp ethernet@10090000: PHY present at 0 ethernet@10090000: Starting autonegotiation... ethernet@10090000: Autonegotiation complete ethernet@10090000: link up, 100Mbps full-duplex (lpa: 0xcde1) BOOTP broadcast 1 DHCP client bound to address 192.168.0.123 (7 ms) => setenv serverip 192.168.0.2 => tftp 0x80200000 3905927/tftp-deploy-hu0hlkp7/kernel/Image ethernet@10090000: PHY present at 0 ethernet@10090000: Starting autonegotiation... ethernet@10090000: Autonegotiation complete ethernet@10090000: link up, 100Mbps full-duplex (lpa: 0xcde1) Using ethernet@10090000 device TFTP from server 192.168.0.2; our IP address is 192.168.0.123 Filename '3905927/tftp-deploy-hu0hlkp7/kernel/Image'. Load address: 0x80200000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ############ 1.7 MiB/s done Bytes transferred = 22113792 (1516e00 hex) => tftp 0x83500000 3905927/tftp-deploy-hu0hlkp7/ramdisk/ramdisk.cpio.gz.uboot ethernet@10090000: PHY present at 0 ethernet@10090000: Starting autonegotiation... ethernet@10090000: Autonegotiation complete ethernet@10090000: link up, 100Mbps full-duplex (lpa: 0xcde1) Using ethernet@10090000 device TFTP from server 192.168.0.2; our IP address is 192.168.0.123 Filename '3905927/tftp-deploy-hu0hlkp7/ramdisk/ramdisk.cpio.gz.uboot'. Load address: 0x83500000 Loading: *################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ####################### 1.6 MiB/s done Bytes transferred = 16545425 (fc7691 hex) => setenv initrd_size ${filesize} => tftp 0x83000000 3905927/tftp-deploy-hu0hlkp7/dtb/hifive-unleashed-a00.dtb ethernet@10090000: PHY present at 0 ethernet@10090000: Starting autonegotiation... ethernet@10090000: Autonegotiation complete ethernet@10090000: link up, 100Mbps full-duplex (lpa: 0xcde1) Using ethernet@10090000 device TFTP from server 192.168.0.2; our IP address is 192.168.0.123 Filename '3905927/tftp-deploy-hu0hlkp7/dtb/hifive-unleashed-a00.dtb'. Load address: 0x83000000 Loading: *# 1012.7 KiB/s done Bytes transferred = 8303 (206f hex) => setenv bootargs 'console=ttySIF0,115200n8 root=/dev/ram0 console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp' => booti 0x80200000 0x83500000 0x83000000 ## Loading init Ramdisk from Legacy Image at 83500000 ... Image Name: Image Type: RISC-V Linux RAMDisk Image (uncompressed) Data Size: 16545361 Bytes = 15.8 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 83000000 Booting using the fdt blob at 0x83000000 Using Device Tree in place at 0000000083000000, end 000000008300506e Starting kernel ... [ 0.000000] Linux version 6.12.0-rc5-next-20241031 (KernelCI@build-j358110-riscv-gcc-12-defconfig-mgvbk) (riscv64-linux-gnu-gcc (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP Thu Oct 31 08:03:06 UTC 2024 [ 0.000000] Machine model: SiFive HiFive Unleashed A00 [ 0.000000] SBI specification v1.0 detected [ 0.000000] SBI implementation ID=0x1 Version=0x10001 [ 0.000000] SBI TIME extension detected [ 0.000000] SBI IPI extension detected [ 0.000000] SBI RFENCE extension detected [ 0.000000] SBI SRST extension detected [ 0.000000] efi: UEFI not found. [ 0.000000] earlycon: sifive0 at MMIO 0x0000000010010000 (options '') [ 0.000000] printk: legacy bootconsole [sifive0] enabled [ 0.000000] OF: reserved mem: 0x0000000080000000..0x000000008007ffff (512 KiB) nomap non-reusable mmode_resv0@80000000 [ 0.000000] Zone ranges: [ 0.000000] DMA32 [mem 0x0000000080000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000027fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x000000008007ffff] [ 0.000000] node 0: [mem 0x0000000080080000-0x000000027fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000027fffffff] [ 0.000000] SBI HSM extension detected [ 0.000000] CPU with hartid=0 is not available [ 0.000000] riscv: base ISA extensions acdfim [ 0.000000] riscv: ELF capabilities acdfim [ 0.000000] percpu: Embedded 21 pages/cpu s49128 r8192 d28696 u86016 [ 0.000000] Kernel command line: console=ttySIF0,115200n8 root=/dev/ram0 console_msg_format=syslog earlycon deferred_probe_timeout=60 ip=dhcp <6>[ 0.000000] printk: log buffer data + meta data: 131072 + 458752 = 589824 bytes <6>[ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) <6>[ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) <6>[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2097152 <6>[ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off <6>[ 0.000000] software IO TLB: area num 4. <6>[ 0.000000] software IO TLB: mapped [mem 0x00000000fbfff000-0x00000000fffff000] (64MB) <5>[ 0.000000] Virtual kernel memory layout: <5>[ 0.000000] fixmap : 0xffffffc4fea00000 - 0xffffffc4ff000000 (6144 kB) <5>[ 0.000000] pci io : 0xffffffc4ff000000 - 0xffffffc500000000 ( 16 MB) <5>[ 0.000000] vmemmap : 0xffffffc500000000 - 0xffffffc600000000 (4096 MB) <5>[ 0.000000] vmalloc : 0xffffffc600000000 - 0xffffffd600000000 ( 64 GB) <5>[ 0.000000] modules : 0xffffffff01591000 - 0xffffffff80000000 (2026 MB) <5>[ 0.000000] lowmem : 0xffffffd600000000 - 0xffffffd800000000 (8192 MB) <5>[ 0.000000] kernel : 0xffffffff80000000 - 0xffffffffffffffff (2047 MB) <6>[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.000000] rcu: Hierarchical RCU implementation. <6>[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. <6>[ 0.000000] rcu: RCU debug extended QS entry/exit. <6>[ 0.000000] Tracing variant of Tasks RCU enabled. <6>[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 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: 64, nr_irqs: 64, preallocated irqs: 0 <6>[ 0.000000] riscv-intc: 64 local interrupts mapped <6>[ 0.000000] riscv: providing IPIs using SBI IPI extension <6>[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. <6>[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns <6>[ 0.000002] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns <6>[ 0.008933] Console: colour dummy device 80x25 <6>[ 0.013374] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000) <6>[ 0.023625] pid_max: default: 32768 minimum: 301 <6>[ 0.028587] LSM: initializing lsm=capability <6>[ 0.033575] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) <6>[ 0.041154] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) <6>[ 0.051088] CPU node for /cpus/cpu@0 exist but the possible cpu range is :0-3 <6>[ 0.060143] riscv: ELF compat mode unsupported <6>[ 0.060157] ASID allocator disabled (0 bits) <6>[ 0.069035] rcu: Hierarchical SRCU implementation. <6>[ 0.073650] rcu: Max phase no-delay instances is 1000. <6>[ 0.079670] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level <6>[ 0.087739] EFI services will not be available. <6>[ 0.092888] smp: Bringing up secondary CPUs ... <4>[ 0.098147] ------------[ cut here ]------------ <4>[ 0.098156] WARNING: CPU: 1 PID: 0 at kernel/time/clockevents.c:455 clockevents_register_device+0x19a/0x1ae <4>[ 0.098181] Modules linked in: <4>[ 0.098192] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc5-next-20241031 #1 <4>[ 0.098204] Hardware name: SiFive HiFive Unleashed A00 (DT) <4>[ 0.098210] epc : clockevents_register_device+0x19a/0x1ae <4>[ 0.098222] ra : clockevents_config_and_register+0x20/0x2a <4>[ 0.098234] epc : ffffffff800a39b6 ra : ffffffff800a39ea sp : ffffffc6000b3d50 <4>[ 0.098243] gp : ffffffff815151b8 tp : ffffffd680146600 t0 : 0000000000001000 <4>[ 0.098252] t1 : 000000003b9aca00 t2 : 0000000000000003 s0 : ffffffc6000b3da0 <4>[ 0.098260] s1 : ffffffd7fefae580 a0 : ffffffd7fefae580 a1 : 00000000ffffffff <4>[ 0.098269] a2 : 0000000000000001 a3 : ffffffff81517200 a4 : 0000000000000001 <4>[ 0.098277] a5 : 0000000000000000 a6 : 0000000000418936 a7 : 0000000000000018 <4>[ 0.098285] s2 : 0000000000000000 s3 : ffffffff8151a9f4 s4 : 0000000000000001 <4>[ 0.098293] s5 : 0000000000000001 s6 : 0000000000000000 s7 : ffffffff8077de94 <4>[ 0.098301] s8 : 0000000000000018 s9 : 000000008003d6b0 s10: 0000000000000000 <4>[ 0.098309] s11: 0000000000000000 t3 : ffffffd680076900 t4 : 0000000000000002 <4>[ 0.098317] t5 : ffffffff814858c0 t6 : 0000000000000002 <4>[ 0.098324] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003 <4>[ 0.098332] [] clockevents_register_device+0x19a/0x1ae <4>[ 0.098346] [] clockevents_config_and_register+0x20/0x2a <4>[ 0.098358] [] riscv_timer_starting_cpu+0x94/0xc6 <4>[ 0.098379] [] cpuhp_invoke_callback+0xb8/0x13a <4>[ 0.098403] [] __cpuhp_invoke_callback_range+0x4e/0xc4 <4>[ 0.098420] [] notify_cpu_starting+0x86/0x98 <4>[ 0.098439] [] smp_callin+0x36/0x76 <4>[ 0.098460] ---[ end trace 0000000000000000 ]--- <6>[ 0.101134] smp: Brought up 1 node, 4 CPUs <6>[ 0.288076] Memory: 8118876K/8388608K available (9936K kernel code, 4952K rwdata, 4096K rodata, 2306K init, 487K bss, 265708K reserved, 0K cma-reserved) <6>[ 0.304254] devtmpfs: initialized <6>[ 0.310897] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns <6>[ 0.320162] futex hash table entries: 1024 (order: 4, 65536 bytes, linear) <6>[ 0.327737] pinctrl core: initialized pinctrl subsystem <6>[ 0.333366] DMI not present or invalid. <6>[ 0.337890] NET: Registered PF_NETLINK/PF_ROUTE protocol family <6>[ 0.344071] DMA: preallocated 1024 KiB GFP_KERNEL pool for atomic allocations <6>[ 0.351080] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations <6>[ 0.359074] audit: initializing netlink subsys (disabled) <5>[ 0.364893] audit: type=2000 audit(0.208:1): state=initialized audit_enabled=0 res=1 <6>[ 0.365464] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.372669] cpuidle: using governor menu <6>[ 0.407062] cpu1: Ratio of byte access time to unaligned word access is 0.01, unaligned accesses are slow <6>[ 0.407063] cpu3: Ratio of byte access time to unaligned word access is 0.01, unaligned accesses are slow <6>[ 0.407064] cpu2: Ratio of byte access time to unaligned word access is 0.01, unaligned accesses are slow <6>[ 0.459151] cpu0: Ratio of byte access time to unaligned word access is 0.01, unaligned accesses are slow <6>[ 0.468424] CCACHE: 4 banks, 16 ways, sets/bank=512, bytes/block=64 <6>[ 0.474731] CCACHE: Index of the largest way enabled: 15 <6>[ 0.487759] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages <6>[ 0.494055] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page <6>[ 0.501817] ACPI: Interpreter disabled. <6>[ 0.505354] iommu: Default domain type: Translated <6>[ 0.510192] iommu: DMA domain TLB invalidation policy: strict mode <5>[ 0.517653] SCSI subsystem initialized <6>[ 0.521457] usbcore: registered new interface driver usbfs <6>[ 0.526682] usbcore: registered new interface driver hub <6>[ 0.532237] usbcore: registered new device driver usb <6>[ 0.538432] Advanced Linux Sound Architecture Driver Initialized. <6>[ 0.545318] vgaarb: loaded <6>[ 0.548183] clocksource: Switched to clocksource riscv_clocksource <6>[ 0.554879] pnp: PnP ACPI: disabled <6>[ 0.572318] NET: Registered PF_INET protocol family <6>[ 0.579522] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) <6>[ 0.608598] tcp_listen_portaddr_hash hash table entries: 4096 (order: 5, 131072 bytes, linear) <6>[ 0.617170] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) <6>[ 0.624751] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) <6>[ 0.635045] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, linear) <6>[ 0.656922] TCP: Hash tables configured (established 65536 bind 65536) <6>[ 0.663498] UDP hash table entries: 4096 (order: 6, 393216 bytes, linear) <6>[ 0.671375] UDP-Lite hash table entries: 4096 (order: 6, 393216 bytes, linear) <6>[ 0.679684] NET: Registered PF_UNIX/PF_LOCAL protocol family <6>[ 0.685855] RPC: Registered named UNIX socket transport module. <6>[ 0.691286] RPC: Registered udp transport module. <6>[ 0.696224] RPC: Registered tcp transport module. <6>[ 0.701169] RPC: Registered tcp-with-tls transport module. <6>[ 0.706898] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 0.713602] PCI: CLS 0 bytes, default 64 <6>[ 0.719257] Unpacking initramfs... <6>[ 0.719308] workingset: timestamp_bits=46 max_order=21 bucket_order=0 <5>[ 0.730004] NFS: Registering the id_resolver key type <5>[ 0.734587] Key type id_resolver registered <5>[ 0.738973] Key type id_legacy registered <6>[ 0.743294] nfs4filelayout_init: NFSv4 File Layout Driver Registering... <6>[ 0.750173] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... <6>[ 0.758125] 9p: Installing v9fs 9p2000 file system support <6>[ 0.764066] NET: Registered PF_ALG protocol family <6>[ 0.768683] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245) <6>[ 0.776577] io scheduler mq-deadline registered <6>[ 0.780995] io scheduler kyber registered <6>[ 0.785331] io scheduler bfq registered <6>[ 0.790691] riscv-plic: interrupt-controller@c000000: mapped 53 interrupts with 4 handlers for 9 contexts. <6>[ 0.801618] SBI CPPC extension NOT detected!! <6>[ 0.884914] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled <6>[ 0.893846] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 12, base_baud = 31249999) is a SiFive UART v0 <6>[ 0.903192] printk: legacy console [ttySIF0] enabled <6>[ 0.903192] printk: legacy console [ttySIF0] enabled <6>[ 0.913583] printk: legacy bootconsole [sifive0] disabled <6>[ 0.913583] printk: legacy bootconsole [sifive0] disabled <6>[ 0.926070] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 13, base_baud = 31249999) is a SiFive UART v0 <6>[ 0.947667] loop: module loaded <6>[ 0.951416] sifive_spi 10040000.spi: mapped; irq=14, cs=1 <6>[ 2.234483] Freeing initrd memory: 16152K <6>[ 2.252167] sifive_spi 10050000.spi: mapped; irq=15, cs=1 <6>[ 2.261061] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt' <3>[ 21.784160] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 21.789574] rcu: 1-...!: (6 GPs behind) idle=0880/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 21.798251] rcu: 2-...!: (0 ticks this GP) idle=05a8/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 21.807194] rcu: 3-...!: (6 GPs behind) idle=0390/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 21.815876] rcu: (detected by 0, t=5252 jiffies, g=-1171, q=1311 ncpus=4) <6>[ 21.822997] Sending NMI from CPU 0 to CPUs 1: <4>[ 21.823019] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x22/0x30 <6>[ 21.836001] Sending NMI from CPU 0 to CPUs 2: <4>[ 21.836017] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x22/0x30 <6>[ 21.847998] Sending NMI from CPU 0 to CPUs 3: <4>[ 21.848015] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x22/0x30 <3>[ 21.860995] rcu: rcu_sched kthread timer wakeup didn't happen for 5251 jiffies! g-1171 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 21.871702] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 21.878648] rcu: rcu_sched kthread starved for 5252 jiffies! g-1171 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 21.889153] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 21.898356] rcu: RCU grace-period kthread stack dump: <6>[ 21.903653] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000000 <6>[ 21.913203] Call Trace: <6>[ 21.915895] [] __schedule+0x360/0x9ca <6>[ 21.921364] [] schedule+0x22/0x112 <6>[ 21.926573] [] schedule_timeout+0x7c/0xf0 <6>[ 21.932390] [] rcu_gp_fqs_loop+0x2f0/0x3ea <6>[ 21.938294] [] rcu_gp_kthread+0x10e/0x12e <6>[ 21.944111] [] kthread+0xc4/0xe0 <6>[ 21.949147] [] ret_from_fork+0xe/0x18 <3>[ 84.804158] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 84.809561] rcu: 2-...!: (0 ticks this GP) idle=05b8/0/0x0 softirq=0/0 fqs=1 (false positive?) <3>[ 84.818502] rcu: (detected by 0, t=21007 jiffies, g=-1171, q=1311 ncpus=4) <6>[ 84.825709] Sending NMI from CPU 0 to CPUs 2: <4>[ 84.825723] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x22/0x30 <3>[ 84.838708] rcu: rcu_sched kthread timer wakeup didn't happen for 15712 jiffies! g-1171 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 84.849671] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 84.856616] rcu: rcu_sched kthread starved for 15713 jiffies! g-1171 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 84.867209] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 84.876412] rcu: RCU grace-period kthread stack dump: <6>[ 84.881708] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000000 <6>[ 84.891258] Call Trace: <6>[ 84.893950] [] __schedule+0x360/0x9ca <6>[ 84.899419] [] schedule+0x22/0x112 <6>[ 84.904629] [] schedule_timeout+0x7c/0xf0 <6>[ 84.910445] [] rcu_gp_fqs_loop+0x2f0/0x3ea <6>[ 84.916349] [] rcu_gp_kthread+0x10e/0x12e <6>[ 84.922167] [] kthread+0xc4/0xe0 <6>[ 84.927202] [] ret_from_fork+0xe/0x18 <3>[ 105.940158] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 105.945560] rcu: 1-...!: (7 GPs behind) idle=0888/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 105.954241] rcu: 2-...!: (0 ticks this GP) idle=05c8/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 105.963183] rcu: 3-...!: (7 GPs behind) idle=0398/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 105.971865] rcu: (detected by 0, t=5252 jiffies, g=-1167, q=1303 ncpus=4) <6>[ 105.978985] Sending NMI from CPU 0 to CPUs 1: <4>[ 105.978999] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x22/0x30 <6>[ 105.991984] Sending NMI from CPU 0 to CPUs 2: <4>[ 105.991996] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x22/0x30 <6>[ 106.003981] Sending NMI from CPU 0 to CPUs 3: <4>[ 106.003993] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x22/0x30 <3>[ 106.016977] rcu: rcu_sched kthread timer wakeup didn't happen for 5251 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 106.027691] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 106.034637] rcu: rcu_sched kthread starved for 5252 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 106.045143] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 106.054345] rcu: RCU grace-period kthread stack dump: <6>[ 106.059642] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000000 <6>[ 106.069192] Call Trace: <6>[ 106.071884] [] __schedule+0x360/0x9ca <6>[ 106.077354] [] schedule+0x22/0x112 <6>[ 106.082562] [] schedule_timeout+0x7c/0xf0 <6>[ 106.088380] [] rcu_gp_fqs_loop+0x2f0/0x3ea <6>[ 106.094284] [] rcu_gp_kthread+0x10e/0x12e <6>[ 106.100100] [] kthread+0xc4/0xe0 <6>[ 106.105136] [] ret_from_fork+0xe/0x18 <3>[ 168.960159] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 168.965561] rcu: 2-...!: (0 ticks this GP) idle=05d8/0/0x0 softirq=0/0 fqs=1 (false positive?) <3>[ 168.974503] rcu: (detected by 0, t=21007 jiffies, g=-1167, q=1303 ncpus=4) <6>[ 168.981709] Sending NMI from CPU 0 to CPUs 2: <4>[ 168.981723] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x22/0x30 <3>[ 168.994708] rcu: rcu_sched kthread timer wakeup didn't happen for 15712 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 169.005671] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 169.012617] rcu: rcu_sched kthread starved for 15713 jiffies! g-1167 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 169.023208] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 169.032412] rcu: RCU grace-period kthread stack dump: <6>[ 169.037708] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000000 <6>[ 169.047259] Call Trace: <6>[ 169.049950] [] __schedule+0x360/0x9ca <6>[ 169.055420] [] schedule+0x22/0x112 <6>[ 169.060629] [] schedule_timeout+0x7c/0xf0 <6>[ 169.066446] [] rcu_gp_fqs_loop+0x2f0/0x3ea <6>[ 169.072349] [] rcu_gp_kthread+0x10e/0x12e <6>[ 169.078167] [] kthread+0xc4/0xe0 <6>[ 169.083202] [] ret_from_fork+0xe/0x18 <3>[ 190.096158] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: <3>[ 190.101561] rcu: 1-...!: (8 GPs behind) idle=0890/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 190.110242] rcu: 2-...!: (0 ticks this GP) idle=05e8/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 190.119185] rcu: 3-...!: (8 GPs behind) idle=03a0/0/0x0 softirq=0/0 fqs=0 (false positive?) <3>[ 190.127867] rcu: (detected by 0, t=5252 jiffies, g=-1163, q=1222 ncpus=4) <6>[ 190.134986] Sending NMI from CPU 0 to CPUs 1: <4>[ 190.134999] NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x22/0x30 <6>[ 190.147985] Sending NMI from CPU 0 to CPUs 2: <4>[ 190.147997] NMI backtrace for cpu 2 skipped: idling at default_idle_call+0x22/0x30 <6>[ 190.159982] Sending NMI from CPU 0 to CPUs 3: <4>[ 190.159994] NMI backtrace for cpu 3 skipped: idling at default_idle_call+0x22/0x30 <3>[ 190.172978] rcu: rcu_sched kthread timer wakeup didn't happen for 5251 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 <3>[ 190.183692] rcu: Possible timer handling issue on cpu=2 timer-softirq=0 <3>[ 190.190638] rcu: rcu_sched kthread starved for 5252 jiffies! g-1163 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=2 <3>[ 190.201144] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior. <3>[ 190.210346] rcu: RCU grace-period kthread stack dump: <6>[ 190.215642] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 flags:0x00000000 <6>[ 190.225193] Call Trace: <6>[ 190.227884] [] __schedule+0x360/0x9ca <6>[ 190.233354] [] schedule+0x22/0x112 <6>[ 190.238564] [] schedule_timeout+0x7c/0xf0 <6>[ 190.244381] [] rcu_gp_fqs_loop+0x2f0/0x3ea <6>[ 190.250285] [] rcu_gp_kthread+0x10e/0x12e <6>[ 190.256101] [] kthread+0xc4/0xe0 <6>[ 190.261138] [] ret_from_fork+0xe/0x18