Warning: Permanently added '10.128.1.21' (ED25519) to the list of known hosts. [ 94.381449][ T1430] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.390081][ T1430] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.402093][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.423054][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.438111][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.447408][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.457148][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.458384][ T1430] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.481158][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.495452][ T1430] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.503931][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.517804][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.527468][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 94.542001][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.582187][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.616804][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.624801][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.644354][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.655121][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.670697][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.693249][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.709888][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.726175][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.764375][ T456] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.786355][ T456] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.801725][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 199.825498][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 199.832748][ C1] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P144/1:b..l [ 199.840982][ C1] (detected by 1, t=10503 jiffies, g=5833, q=35) [ 199.847549][ C1] task:kworker/u4:1 state:R running task stack:22824 pid: 144 ppid: 2 flags:0x00004000 [ 199.858965][ C1] Workqueue: events_unbound linkwatch_event [ 199.865199][ C1] Call Trace: [ 199.868623][ C1] [ 199.871679][ C1] __schedule+0x11bb/0x4390 [ 199.876241][ C1] ? try_to_wake_up+0x69d/0x1050 [ 199.881551][ C1] ? kasan_unpoison+0x42/0x60 [ 199.886312][ C1] ? preempt_schedule_common+0xd0/0xd0 [ 199.892069][ C1] ? release_firmware_map_entry+0x190/0x190 [ 199.898612][ C1] ? mark_lock+0x94/0x320 [ 199.903106][ C1] preempt_schedule_notrace+0xca/0x110 [ 199.908702][ C1] ? preempt_schedule_common+0xd0/0xd0 [ 199.914304][ C1] ? __queue_work+0xa61/0xd50 [ 199.919072][ C1] preempt_schedule_notrace_thunk+0x16/0x18 [ 199.925133][ C1] rcu_is_watching+0x72/0xa0 [ 199.930015][ C1] kmem_cache_alloc_trace+0x132/0x2a0 [ 199.935607][ C1] ? sctp_inet6addr_event+0x37b/0x730 [ 199.941043][ C1] sctp_inet6addr_event+0x37b/0x730 [ 199.946303][ C1] ? ieee80211_ifa6_changed+0xc1/0x370 [ 199.951796][ C1] ? masq_inet6_event+0xf0/0x130 [ 199.956816][ C1] atomic_notifier_call_chain+0x15d/0x280 [ 199.963134][ C1] ipv6_add_addr+0xb30/0xde0 [ 199.967865][ C1] ? ipv6_count_addresses+0x170/0x170 [ 199.973561][ C1] ? __fib6_update_sernum_upto_root+0x1b3/0x230 [ 199.979840][ C1] ? fib6_add+0x2d28/0x3d30 [ 199.984392][ C1] addrconf_add_linklocal+0x280/0x6b0 [ 199.989800][ C1] ? inet6_addr_del+0x5a0/0x5a0 [ 199.994907][ C1] ? lock_chain_count+0x20/0x20 [ 199.999980][ C1] ? lockdep_hardirqs_on_prepare+0x760/0x760 [ 200.006016][ C1] ? __local_bh_enable_ip+0x12a/0x1b0 [ 200.011427][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 200.016666][ C1] ? __local_bh_enable_ip+0x12a/0x1b0 [ 200.022074][ C1] ? memcpy+0x3c/0x60 [ 200.026104][ C1] ? ipv6_generate_eui64+0x820/0x1080 [ 200.031518][ C1] addrconf_addr_gen+0x4ee/0x620 [ 200.036668][ C1] ? ip6_route_add+0x100/0x130 [ 200.041748][ C1] ? addrconf_sysctl_register+0x1b0/0x1b0 [ 200.047594][ C1] ? addrconf_add_dev+0x250/0x350 [ 200.052654][ C1] ? l3mdev_fib_table+0x130/0x130 [ 200.057728][ C1] ? vprintk_emit+0xa7/0x150 [ 200.062371][ C1] ? preempt_schedule+0xa7/0xb0 [ 200.067265][ C1] ? tick_nohz_tick_stopped+0x7b/0xb0 [ 200.072683][ C1] ? __irq_work_queue_local+0x12c/0x190 [ 200.078279][ C1] addrconf_init_auto_addrs+0x6d5/0xa80 [ 200.083865][ C1] ? addrconf_dad_run+0x1d0/0x1d0 [ 200.088923][ C1] ? __wake_up_klogd+0xd9/0x100 [ 200.093801][ C1] ? vprintk_emit+0xf9/0x150 [ 200.098424][ C1] ? _printk+0xcc/0x110 [ 200.102615][ C1] ? load_image+0x3b0/0x3b0 [ 200.107147][ C1] ? __local_bh_enable_ip+0x12a/0x1b0 [ 200.112550][ C1] ? addrconf_link_ready+0x116/0x170 [ 200.117897][ C1] addrconf_notify+0xa6b/0xf00 [ 200.122697][ C1] raw_notifier_call_chain+0xcb/0x160 [ 200.128220][ C1] netdev_state_change+0xd2/0x140 [ 200.133302][ C1] ? netdev_features_change+0xc0/0xc0 [ 200.138712][ C1] ? dev_activate+0xaf0/0x12b0 [ 200.143543][ C1] ? __netdev_watchdog_up+0x99/0x210 [ 200.148858][ C1] linkwatch_do_dev+0x10d/0x160 [ 200.153962][ C1] __linkwatch_run_queue+0x4a9/0x7b0 [ 200.159294][ C1] ? linkwatch_run_queue+0x10/0x10 [ 200.164438][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 200.169670][ C1] linkwatch_event+0x48/0x50 [ 200.174297][ C1] process_one_work+0x863/0x1000 [ 200.179364][ C1] ? worker_detach_from_pool+0x240/0x240 [ 200.185029][ C1] ? lockdep_hardirqs_off+0x70/0x100 [ 200.190520][ C1] ? _raw_spin_lock_irq+0xab/0xe0 [ 200.195732][ C1] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 200.201356][ C1] ? wq_worker_running+0x97/0x170 [ 200.206418][ C1] worker_thread+0xaa8/0x12a0 [ 200.211371][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 200.216730][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 200.221995][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 200.227936][ C1] kthread+0x436/0x520 [ 200.232090][ C1] ? rcu_lock_release+0x20/0x20 [ 200.236966][ C1] ? kthread_blkcg+0xd0/0xd0 [ 200.241893][ C1] ret_from_fork+0x1f/0x30 [ 200.246543][ C1] [ 200.249599][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10543 jiffies! g5833 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 200.262035][ C1] rcu: Possible timer handling issue on cpu=1 timer-softirq=1982 [ 200.269864][ C1] rcu: rcu_preempt kthread starved for 10546 jiffies! g5833 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 200.281178][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 200.291264][ C1] rcu: RCU grace-period kthread stack dump: [ 200.297283][ C1] task:rcu_preempt state:I stack:28032 pid: 15 ppid: 2 flags:0x00004000 [ 200.306805][ C1] Call Trace: [ 200.310129][ C1] [ 200.313112][ C1] __schedule+0x11bb/0x4390 [ 200.317678][ C1] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 200.323268][ C1] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 200.329322][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 200.335346][ C1] ? _raw_spin_unlock+0x40/0x40 [ 200.340226][ C1] ? rcu_is_watching+0x11/0xa0 [ 200.345023][ C1] ? release_firmware_map_entry+0x190/0x190 [ 200.350966][ C1] schedule+0x11b/0x1e0 [ 200.355170][ C1] schedule_timeout+0x15c/0x280 [ 200.360058][ C1] ? console_conditional_schedule+0x40/0x40 [ 200.366246][ C1] ? update_process_times+0x200/0x200 [ 200.371743][ C1] ? prepare_to_swait_event+0x331/0x350 [ 200.377408][ C1] rcu_gp_fqs_loop+0x29e/0x11b0 [ 200.382298][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 200.387536][ C1] ? rcu_gp_init+0xd58/0x10e0 [ 200.392469][ C1] ? rcu_gp_init+0x10e0/0x10e0 [ 200.397528][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 200.402871][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 200.408308][ C1] rcu_gp_kthread+0x98/0x350 [ 200.412930][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 200.418165][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 200.424088][ C1] ? __kthread_parkme+0x157/0x1b0 [ 200.429154][ C1] kthread+0x436/0x520 [ 200.433254][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 200.438387][ C1] ? kthread_blkcg+0xd0/0xd0 [ 200.443021][ C1] ret_from_fork+0x1f/0x30 [ 200.447472][ C1] [ 200.450604][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 200.456956][ C1] NMI backtrace for cpu 1 [ 200.461321][ C1] CPU: 1 PID: 4218 Comm: syz-executor254 Not tainted syzkaller #0 [ 200.469145][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 200.479235][ C1] Call Trace: [ 200.482648][ C1] [ 200.485519][ C1] dump_stack_lvl+0x168/0x230 [ 200.490438][ C1] ? show_regs_print_info+0x20/0x20 [ 200.495694][ C1] ? load_image+0x3b0/0x3b0 [ 200.500245][ C1] nmi_cpu_backtrace+0x397/0x3d0 [ 200.505219][ C1] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 200.511668][ C1] ? _printk+0xcc/0x110 [ 200.515882][ C1] ? cpu_online+0x1d/0x30 [ 200.520240][ C1] ? load_image+0x3b0/0x3b0 [ 200.525080][ C1] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 200.531266][ C1] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 200.537456][ C1] rcu_check_gp_kthread_starvation+0x1cd/0x250 [ 200.543655][ C1] print_other_cpu_stall+0x10c8/0x1220 [ 200.549164][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 200.554144][ C1] rcu_sched_clock_irq+0x831/0x1110 [ 200.559371][ C1] ? rcutree_dead_cpu+0x20/0x20 [ 200.564250][ C1] ? account_process_tick+0x227/0x3a0 [ 200.569701][ C1] update_process_times+0x193/0x200 [ 200.575039][ C1] tick_sched_timer+0x37d/0x560 [ 200.580017][ C1] __hrtimer_run_queues+0x4fe/0xc40 [ 200.585262][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 200.590849][ C1] ? hrtimer_interrupt+0x8d0/0x8d0 [ 200.595998][ C1] ? ktime_get_update_offsets_now+0x3ce/0x3e0 [ 200.602123][ C1] hrtimer_interrupt+0x3bb/0x8d0 [ 200.607135][ C1] __sysvec_apic_timer_interrupt+0x137/0x4a0 [ 200.613148][ C1] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 200.618823][ C1] [ 200.621787][ C1] [ 200.624952][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 200.630984][ C1] RIP: 0010:__might_sleep+0x37/0xf0 [ 200.636211][ C1] Code: 00 00 00 00 fc ff df 65 48 8b 1d 14 6b af 7e 4c 8d 73 18 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 82 00 00 00 41 8b 2e <85> ed 74 40 48 81 c3 80 17 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 [ 200.656174][ C1] RSP: 0018:ffffc9000300fc08 EFLAGS: 00000246 [ 200.662283][ C1] RAX: 0000000000000000 RBX: ffff8880749f1dc0 RCX: ffff8880749f1dc0 [ 200.670386][ C1] RDX: 0000000000000000 RSI: 0000000000000014 RDI: ffffffff8b9dc8f0 [ 200.678384][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000601fc6 [ 200.686381][ C1] R10: fffff52000601fc6 R11: 1ffff92000601fc0 R12: dffffc0000000000 [ 200.694467][ C1] R13: 1ffff92000601fff R14: ffff8880749f1dd8 R15: dffffc0000000000 [ 200.702501][ C1] __might_fault+0x6b/0x110 [ 200.707157][ C1] clear_user+0xd2/0x150 [ 200.711446][ C1] copy_siginfo_to_user+0x57/0x80 [ 200.716509][ C1] arch_do_signal_or_restart+0xd56/0x1300 [ 200.722280][ C1] ? _copy_from_user+0x111/0x170 [ 200.727440][ C1] ? get_sigframe_size+0x10/0x10 [ 200.732519][ C1] ? exit_to_user_mode_loop+0x3b/0x130 [ 200.738013][ C1] exit_to_user_mode_loop+0x9e/0x130 [ 200.743335][ C1] exit_to_user_mode_prepare+0xee/0x180 [ 200.749005][ C1] syscall_exit_to_user_mode+0x16/0x40 [ 200.754593][ C1] do_syscall_64+0x58/0xa0 [ 200.759039][ C1] ? clear_bhb_loop+0x30/0x80 [ 200.763957][ C1] ? clear_bhb_loop+0x30/0x80 [ 200.768667][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 200.774581][ C1] RIP: 0033:0x7f3defcb9ffa [ 200.779026][ C1] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 83 84 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 e3 84 02 00 8b 44 24 [ 200.798839][ C1] RSP: 002b:00007ffd4ec112c0 EFLAGS: 00000293 [ 200.805045][ C1] RAX: fffffffffffffff7 RBX: 0000000000000007 RCX: 00007f3defcb9ffa [ 200.813038][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 200.821239][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003 [ 200.829233][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3defd11160 [ 200.837319][ C1] R13: 0000000000000003 R14: 00007ffd4ec11310 R15: 0000000000000000 [ 200.845329][ C1] [ 200.849155][ C1] sched: RT throttling activated executing program [ 200.881388][ T4203] Bluetooth: hci3: command 0x0409 tx timeout executing program [ 200.953505][ T4203] Bluetooth: hci4: command 0x0409 tx timeout [ 201.399742][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 201.408169][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 201.426414][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 201.434964][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program