Warning: Permanently added '10.128.1.56' (ED25519) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
syzkaller login: [ 169.908429][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 169.915517][ C1] (detected by 1, t=10502 jiffies, g=4881, q=32)
[ 169.921934][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294954137-4294943635), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 169.935300][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g4881 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 169.946432][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 169.956414][ C1] rcu: RCU grace-period kthread stack dump:
[ 169.962329][ C1] task:rcu_preempt state:R running task stack:28032 pid: 15 ppid: 2 flags:0x00004000
[ 169.973142][ C1] Call Trace:
[ 169.976446][ C1]
[ 169.979398][ C1] __schedule+0x11bb/0x4390
[ 169.983972][ C1] ? lock_chain_count+0x20/0x20
[ 169.988874][ C1] ? release_firmware_map_entry+0x190/0x190
[ 169.994798][ C1] ? finish_lock_switch+0x12f/0x280
[ 170.000013][ C1] ? preempt_schedule_irq+0xd0/0x150
[ 170.005316][ C1] ? preempt_schedule_irq+0xa6/0x150
[ 170.010634][ C1] preempt_schedule_irq+0xb1/0x150
[ 170.015763][ C1] ? __cond_resched+0xb0/0xb0
[ 170.020457][ C1] ? rcu_irq_exit_check_preempt+0xdb/0x200
[ 170.026277][ C1] irqentry_exit+0x63/0x70
[ 170.030707][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 170.036715][ C1] RIP: 0010:timer_delete_sync+0x158/0x260
[ 170.042453][ C1] Code: 00 4d 85 ed 75 16 e8 67 9c 10 00 eb 15 e8 60 9c 10 00 e8 9b bf 41 08 4d 85 ed 74 ea e8 51 9c 10 00 fb 65 44 8b 35 f0 40 9b 7e <44> 89 f6 81 e6 00 00 0f 00 31 ff e8 98 9f 10 00 41 81 e6 00 00 0f
[ 170.062061][ C1] RSP: 0018:ffffc90000d47b00 EFLAGS: 00000293
[ 170.068137][ C1] RAX: ffffffff81672ecf RBX: ffffc90000d47be0 RCX: ffff88813feabb80
[ 170.076126][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 170.084100][ C1] RBP: ffffc90000d47bb0 R08: dffffc0000000000 R09: fffffbfff1ad323e
[ 170.092077][ C1] R10: fffffbfff1ad323e R11: 1ffffffff1ad323d R12: dffffc0000000000
[ 170.100070][ C1] R13: 0000000000000200 R14: 0000000080000000 R15: 1ffff920001a8f60
[ 170.108066][ C1] ? timer_delete_sync+0x14f/0x260
[ 170.113205][ C1] ? try_to_del_timer_sync+0x1b0/0x1b0
[ 170.118685][ C1] schedule_timeout+0x164/0x280
[ 170.123546][ C1] ? console_conditional_schedule+0x40/0x40
[ 170.129452][ C1] ? update_process_times+0x200/0x200
[ 170.134858][ C1] ? prepare_to_swait_event+0x331/0x350
[ 170.140429][ C1] rcu_gp_fqs_loop+0x29e/0x11b0
[ 170.145294][ C1] ? lockdep_hardirqs_on+0x94/0x140
[ 170.150503][ C1] ? rcu_gp_init+0xd58/0x10e0
[ 170.155190][ C1] ? rcu_gp_init+0x10e0/0x10e0
[ 170.159968][ C1] ? _raw_spin_unlock_irq+0x1f/0x40
[ 170.165178][ C1] ? lockdep_hardirqs_on+0x94/0x140
[ 170.170391][ C1] rcu_gp_kthread+0x98/0x350
[ 170.174996][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 170.180134][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 170.186045][ C1] ? __kthread_parkme+0x157/0x1b0
[ 170.191085][ C1] kthread+0x436/0x520
[ 170.195167][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 170.200294][ C1] ? kthread_blkcg+0xd0/0xd0
[ 170.204906][ C1] ret_from_fork+0x1f/0x30
[ 170.209367][ C1]
[ 170.212410][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 170.218738][ C1] NMI backtrace for cpu 1
[ 170.223093][ C1] CPU: 1 PID: 4188 Comm: syz-executor138 Not tainted syzkaller #0
[ 170.230912][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 170.240975][ C1] Call Trace:
[ 170.244268][ C1]
[ 170.247135][ C1] dump_stack_lvl+0x168/0x230
[ 170.251837][ C1] ? show_regs_print_info+0x20/0x20
[ 170.257061][ C1] ? load_image+0x3b0/0x3b0
[ 170.261591][ C1] ? irq_work_queue+0xbf/0x140
[ 170.266398][ C1] nmi_cpu_backtrace+0x397/0x3d0
[ 170.271367][ C1] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 170.277539][ C1] ? _printk+0xcc/0x110
[ 170.281719][ C1] ? cpu_online+0x1d/0x30
[ 170.286060][ C1] ? load_image+0x3b0/0x3b0
[ 170.290579][ C1] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 170.296668][ C1] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 170.302675][ C1] rcu_check_gp_kthread_starvation+0x1cd/0x250
[ 170.308865][ C1] print_other_cpu_stall+0x10c8/0x1220
[ 170.314341][ C1] ? print_cpu_stall+0x5f0/0x5f0
[ 170.319294][ C1] ? rcu_qs+0xc1/0x160
[ 170.323380][ C1] ? rcu_softirq_qs+0x280/0x280
[ 170.328259][ C1] rcu_sched_clock_irq+0x831/0x1110
[ 170.333571][ C1] ? rcutree_dead_cpu+0x20/0x20
[ 170.338440][ C1] ? hrtimer_run_queues+0x162/0x440
[ 170.343652][ C1] ? account_process_tick+0x227/0x3a0
[ 170.349044][ C1] update_process_times+0x193/0x200
[ 170.354363][ C1] tick_sched_timer+0x37d/0x560
[ 170.359223][ C1] __hrtimer_run_queues+0x4fe/0xc40
[ 170.364440][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0
[ 170.370004][ C1] ? hrtimer_interrupt+0x8d0/0x8d0
[ 170.375131][ C1] ? ktime_get_update_offsets_now+0x3ce/0x3e0
[ 170.381208][ C1] hrtimer_interrupt+0x3bb/0x8d0
[ 170.386180][ C1] __sysvec_apic_timer_interrupt+0x137/0x4a0
[ 170.392172][ C1] sysvec_apic_timer_interrupt+0x9b/0xc0
[ 170.397826][ C1]
[ 170.400805][ C1]
[ 170.403780][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 170.409784][ C1] RIP: 0010:syscall_enter_from_user_mode+0x2a/0x70
[ 170.416314][ C1] Code: 41 56 53 48 89 f3 49 89 fe 48 8b 7c 24 10 e8 3d f6 ff ff eb 31 eb 35 e8 c4 f1 d4 f7 e8 bf ef d4 f7 fb 65 48 8b 05 26 76 59 76 <48> 8b 70 08 40 f6 c6 3f 74 0b 4c 89 f7 5b 41 5e e9 51 32 bd f7 48
[ 170.435937][ C1] RSP: 0018:ffffc90002daff08 EFLAGS: 00000286
[ 170.442042][ C1] RAX: ffff888079573b80 RBX: 0000000000000027 RCX: 0f037dab84895d00
[ 170.450120][ C1] RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: ffffffff8a59a480
[ 170.458101][ C1] RBP: ffffc90002daff48 R08: dffffc0000000000 R09: fffffbfff1ad323e
[ 170.466080][ C1] R10: fffffbfff1ad323e R11: 1ffffffff1ad323d R12: 0000000000000000
[ 170.474068][ C1] R13: 0000000000000000 R14: ffffc90002daff58 R15: 0000000000000000
[ 170.482066][ C1] ? syscall_enter_from_user_mode+0x21/0x70
[ 170.487977][ C1] do_syscall_64+0x24/0xa0
[ 170.492405][ C1] ? clear_bhb_loop+0x30/0x80
[ 170.497089][ C1] ? clear_bhb_loop+0x30/0x80
[ 170.501790][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 170.507703][ C1] RIP: 0033:0x7f12eb790807
[ 170.512132][ C1] Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d f2 0b 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 23 d8 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 87 df 02 00 0f 1f 80 00
[ 170.531746][ C1] RSP: 002b:00007f12eb751b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000027
[ 170.540170][ C1] RAX: ffffffffffffffda RBX: 00007f12eb751cf0 RCX: 00007f12eb790807
[ 170.548152][ C1] RDX: 00007f12eb751bc0 RSI: 00007f12eb751cf0 RDI: 0000000000000021
[ 170.556137][ C1] RBP: 0000000000000000 R08: 00007f12eb7526c0 R09: 00007f12eb7526c0
[ 170.564115][ C1] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f12eb81c30c
[ 170.572190][ C1] R13: 0000000000000000 R14: 00007fffc95f1c80 R15: 00007fffc95f1d68
[ 170.580185][ C1]