[ 5.664784] brd: module loaded [ 5.668372] virtio_blk virtio1: 1/0/0 default/read/poll queues [ 5.678355] virtio_blk virtio1: [vda] 730528 512-byte logical blocks (374 MB/357 MiB) [ 5.715100] xhci_hcd 0000:00:02.0: xHCI Host Controller [ 5.717678] xhci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 1 [ 5.729635] xhci_hcd 0000:00:02.0: hcc params 0x00087001 hci version 0x100 quirks 0x0000000000000010 [ 5.734372] xhci_hcd 0000:00:02.0: xHCI Host Controller [ 5.734967] xhci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 2 [ 5.735587] xhci_hcd 0000:00:02.0: Host supports USB 3.0 SuperSpeed [ 5.752710] hub 1-0:1.0: USB hub found [ 5.754969] hub 1-0:1.0: 4 ports detected [ 5.761888] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 5.769249] hub 2-0:1.0: USB hub found [ 5.770758] hub 2-0:1.0: 4 ports detected [ 5.781435] goldfish_rtc 101000.rtc: registered as rtc0 [ 5.783413] goldfish_rtc 101000.rtc: setting system clock to 2026-07-22T20:19:03 UTC (1784751543) [ 5.791991] device-mapper: ioctl: 4.50.0-ioctl (2025-04-28) initialised: dm-devel@lists.linux.dev [ 5.804014] usbcore: registered new interface driver usbhid [ 5.805589] usbhid: USB HID core driver [ 5.806794] riscv-pmu-sbi: SBI PMU extension is available [ 5.808128] riscv-pmu-sbi: 16 firmware and 18 hardware counters [ 5.816303] u32 classifier [ 5.817336] input device check on [ 5.817929] Actions configured [ 24.961585] NET: Registered PF_INET6 protocol family [ 24.983813] Segment Routing with IPv6 [ 24.984838] In-situ OAM (IOAM) with IPv6 [ 24.986418] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 26.445258] NET: Registered PF_PACKET protocol family [ 26.452245] Bridge firewalling registered [ 26.456399] l2tp_core: L2TP core driver, V2.0 [ 26.457958] Key type dns_resolver registered [ 26.460196] NET: Registered PF_VSOCK protocol family [ 26.503532] registered taskstats version 1 [ 26.506964] usb 1-1: new high-speed USB device number 2 using xhci_hcd [ 26.716395] input: QEMU QEMU USB Tablet as /devices/platform/soc/30000000.pci/pci0000:00/0000:00:02.0/usb1/1-1/1-1:1.0/0003:0627:0001.0001/input/input0 [ 26.720013] hid-generic 0003:0627:0001.0001: input: USB HID v0.01 Mouse [QEMU QEMU USB Tablet] on usb-0000:00:02.0-1/input0 [ 26.847163] usb 1-2: new high-speed USB device number 3 using xhci_hcd [ 27.002256] input: QEMU QEMU USB Keyboard as /devices/platform/soc/30000000.pci/pci0000:00/0000:00:02.0/usb1/1-2/1-2:1.0/0003:0627:0001.0002/input/input1 [ 27.063030] hid-generic 0003:0627:0001.0002: input: USB HID v1.11 Keyboard [QEMU QEMU USB Keyboard] on usb-0000:00:02.0-2/input0 [ 47.730373] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 47.738025] rcu: 2-...0: (1 GPs behind) idle=02cc/1/0x4000000000000000 softirq=48/49 fqs=2553 [ 47.740979] rcu: (detected by 1, t=5252 jiffies, g=-1095, q=1 ncpus=4) [ 47.741846] Sending NMI from CPU 1 to CPUs 2: [ 57.748555] rcu: rcu_preempt kthread starved for 2500 jiffies! g-1095 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=0 [ 57.748749] NMI backtrace for cpu 2 [ 57.749446] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.18.39-yocto-standard #1 PREEMPT [ 57.749807] Hardware name: riscv-virtio,qemu (DT) [ 57.750102] epc : new_slab+0x17c/0x380 [ 57.750828] ra : new_slab+0x10a/0x380 [ 57.750939] epc : ffffffff802a2ac4 ra : ffffffff802a2a52 sp : ffffffc600023b10 [ 57.751043] gp : ffffffff819ff7f0 tp : ffffffd6026c8000 t0 : ffffffff80020df8 [ 57.751108] t1 : ffffffff81a4db70 t2 : fffffffff0000000 s0 : ffffffc600023b50 [ 57.751159] s1 : ffffffd604918800 a0 : ffffffff819b9600 a1 : ffffffd6bdd3b000 [ 57.751194] a2 : 0000000000000015 a3 : 0000000000200000 a4 : 0000000000000800 [ 57.751240] a5 : 000000000000000f a6 : 0000000000000002 a7 : 0000000000000006 [ 57.751284] s2 : ffffffd602403600 s3 : ffffffd604918400 s4 : 0000000000000001 [ 57.751359] s5 : ffffffd63ef183c0 s6 : ffffffd604918800 s7 : ffffffd63edcddc0 [ 57.751415] s8 : 0000000000202800 s9 : ffffffff81a4db70 s10: 0000000000000001 [ 57.751489] s11: ffffffff4228d000 t3 : 0000000000000018 t4 : 0000000000000008 [ 57.751532] t5 : 0000000000000002 t6 : 00000000000000f0 [ 57.751579] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001 [ 57.751709] [] new_slab+0x17c/0x380 [ 57.751930] [] ___slab_alloc+0x58a/0xd00 [ 57.751975] [] __slab_alloc.isra.0+0x4a/0x90 [ 57.752006] [] __kmalloc_node_noprof+0x5f0/0x678 [ 57.752045] [] __alloc+0x74/0x98 [ 57.752091] [] alloc_bulk+0x12c/0x2b0 [ 57.752127] [] bpf_mem_alloc_init+0x152/0x2f0 [ 57.752165] [] bpf_global_ma_init+0x24/0x40 [ 57.752225] [] do_one_initcall+0x60/0x260 [ 57.752293] [] kernel_init_freeable+0x240/0x2f0 [ 57.752361] [] kernel_init+0x28/0x170 [ 57.752384] [] ret_from_fork_kernel+0x16/0x78 [ 57.752433] [] ret_from_fork_kernel_asm+0x16/0x18 [ 57.761013] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 57.761539] rcu: RCU grace-period kthread stack dump: [ 57.761914] task:rcu_preempt state:I stack:0 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00000000 [ 57.762659] Call Trace: [ 57.762844] [] __schedule+0x3a0/0xa58 [ 57.763190] [] schedule+0x2e/0xc8 [ 57.763486] [] schedule_timeout+0x82/0x120 [ 57.763833] [] rcu_gp_fqs_loop+0xf8/0x640 [ 57.764159] [] rcu_gp_kthread+0x138/0x248 [ 57.764496] [] kthread+0x108/0x1e8 [ 57.764796] [] ret_from_fork_kernel+0x16/0x78 [ 57.765158] [] ret_from_fork_kernel_asm+0x16/0x18 [ 57.765606] rcu: Stack dump where RCU GP kthread last ran: [ 57.765925] Sending NMI from CPU 1 to CPUs 0: [ 57.766325] NMI backtrace for cpu 0 skipped: idling at default_idle_call+0x44/0x100 [ 57.815619] Key type .fscrypt registered [ 57.816118] Key type fscrypt-provisioning registered [ 57.819896] Btrfs loaded, zoned=no, fsverity=no [ 57.833638] Key type encrypted registered [ 57.835445] netconsole: network logging started [ 57.870389] IP-Config: Complete: [ 57.871063] device=eth0, hwaddr=52:54:00:12:34:0a, ipaddr=192.168.7.10, mask=255.255.255.0, gw=192.168.7.9 [ 57.871748] host=192.168.7.10, domain=, nis-domain=(none) [ 57.872060] bootserver=255.255.255.255, rootserver=255.255.255.255, rootpath= [ 57.872097] nameserver0=8.8.8.8 [ 57.875106] clk: Disabling unused clocks [ 57.878663] md: Waiting for all devices to be available before autodetect [ 57.878997] md: If you don't use raid, use raid=noautodetect [ 57.879304] md: Autodetecting RAID arrays. [ 57.879515] md: autorun ... [ 57.879681] md: ... autorun DONE. [ 57.954772] EXT4-fs (vda): mounted filesystem 0d29f792-e105-4045-af0e-59bd439cd4ef r/w with ordered data mode. Quota mode: disabled. [ 57.956416] VFS: Mounted root (ext4 filesystem) on device 253:0. [ 57.958986] devtmpfs: mounted [ 58.040731] Freeing unused kernel image (initmem) memory: 2656K [ 58.042326] Run /sbin/init as init process INIT: version 3.14 booting Starting udev [ 75.407326] udevd[121]: starting version 3.2.14 [ 75.508529] udevd[122]: starting eudev-3.2.14 [ 76.079533] EXT4-fs (vda): re-mounted 0d29f792-e105-4045-af0e-59bd439cd4ef. INIT: Entering runlevel: 5 Configuring network interfaces... ip: RTNETLINK answers: File exists Starting OpenBSD Secure Shell server: sshd generating ssh ECDSA host key... done. Starting syslogd/klogd: done Poky (Yocto Project Reference Distro) 6.0.99+snapshot-8b98158de0aab224aac7a34a1ba3d9441c10e571 qemuriscv64 /dev/hvc0 Type 'root' to login with superuser privileges (no password will be asked). qemuriscv64 login: