Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts.
executing program
executing program
executing program
syzkaller login: [ 190.104435][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 190.111593][ C1] rcu: (detected by 1, t=10502 jiffies, g=9149, q=19 ncpus=2)
[ 190.119176][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294956089-4294945586), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 190.132695][ C1] rcu: rcu_preempt kthread starved for 10504 jiffies! g9149 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[ 190.143854][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 190.154567][ C1] rcu: RCU grace-period kthread stack dump:
[ 190.160509][ C1] task:rcu_preempt state:R running task stack:25872 pid:17 ppid:2 flags:0x00004000
[ 190.171450][ C1] Call Trace:
[ 190.174939][ C1]
[ 190.177932][ C1] __schedule+0x14d2/0x44d0
[ 190.182527][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x110
[ 190.188483][ C1] ? lockdep_hardirqs_on+0x98/0x150
[ 190.193757][ C1] ? _raw_spin_unlock_irqrestore+0xae/0x110
[ 190.199788][ C1] ? asan.module_dtor+0x20/0x20
[ 190.204708][ C1] ? enqueue_timer+0x225/0x530
[ 190.209608][ C1] ? __mod_timer+0x984/0xdb0
[ 190.214357][ C1] schedule+0xbd/0x170
[ 190.218492][ C1] schedule_timeout+0x160/0x280
[ 190.223480][ C1] ? console_conditional_schedule+0x40/0x40
[ 190.229678][ C1] ? update_process_times+0x1b0/0x1b0
[ 190.235300][ C1] ? prepare_to_swait_event+0x339/0x360
[ 190.240897][ C1] rcu_gp_fqs_loop+0x302/0x1560
[ 190.245818][ C1] ? rcu_gp_init+0x110e/0x1510
[ 190.250766][ C1] ? rcu_gp_kthread+0x380/0x380
[ 190.255768][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760
[ 190.261882][ C1] ? rcu_gp_init+0x1510/0x1510
[ 190.266776][ C1] ? rcu_gp_cleanup+0xb4c/0xca0
[ 190.271683][ C1] ? _raw_spin_unlock_irq+0x23/0x50
[ 190.277012][ C1] ? lockdep_hardirqs_on+0x98/0x150
[ 190.282268][ C1] rcu_gp_kthread+0x99/0x380
[ 190.286946][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 190.292117][ C1] ? __kthread_parkme+0x7a/0x1c0
[ 190.297194][ C1] ? __kthread_parkme+0x162/0x1c0
[ 190.302803][ C1] kthread+0x2fa/0x390
[ 190.306909][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 190.312076][ C1] ? kthread_blkcg+0xd0/0xd0
[ 190.316860][ C1] ret_from_fork+0x48/0x80
[ 190.321345][ C1] ? kthread_blkcg+0xd0/0xd0
[ 190.325990][ C1] ret_from_fork_asm+0x11/0x20
[ 190.330823][ C1]
[ 190.333892][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 190.340253][ C1] Sending NMI from CPU 1 to CPUs 0:
[ 190.345545][ C0] NMI backtrace for cpu 0
[ 190.345568][ C0] CPU: 0 PID: 5792 Comm: syz-executor934 Not tainted syzkaller #0
[ 190.345584][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 190.345595][ C0] RIP: 0010:__lock_acquire+0x3fa/0x7c80
[ 190.345620][ C0] Code: 0f e8 2a e6 75 00 49 b8 00 00 00 00 00 fc ff df 48 8b 84 24 90 00 00 00 4c 89 70 08 49 89 c6 4c 8d 60 10 4c 89 e0 48 c1 e8 03 <48> 89 84 24 e0 00 00 00 42 80 3c 00 00 74 12 4c 89 e7 e8 ef e5 75
[ 190.345633][ C0] RSP: 0018:ffffc90000007a60 EFLAGS: 00000806
[ 190.345647][ C0] RAX: 1ffff1100569051e RBX: 0000000000000000 RCX: 1ffff11005690520
[ 190.345659][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802b4828e8
[ 190.345668][ C0] RBP: ffffc90000007ca8 R08: dffffc0000000000 R09: 0000000000000001
[ 190.345679][ C0] R10: dffffc0000000000 R11: fffffbfff1c9506e R12: ffff88802b4828f0
[ 190.345691][ C0] R13: 0000000000000067 R14: ffff88802b4828e0 R15: 0000000000000000
[ 190.345701][ C0] FS: 00007fcd1ba0b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[ 190.345715][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 190.345725][ C0] CR2: 00007fcd1ba0ae40 CR3: 000000002989b000 CR4: 00000000003506f0
[ 190.345739][ C0] Call Trace:
[ 190.345746][ C0]
[ 190.345765][ C0] ? verify_lock_unused+0x140/0x140
[ 190.345786][ C0] ? do_raw_spin_lock+0x121/0x2c0
[ 190.345815][ C0] lock_acquire+0x197/0x410
[ 190.345831][ C0] ? hrtimer_interrupt+0xfc/0x9c0
[ 190.345851][ C0] ? ktime_get+0x7f/0x280
[ 190.345867][ C0] ? ktime_get+0x7f/0x280
[ 190.345884][ C0] ? read_lock_is_recursive+0x20/0x20
[ 190.345900][ C0] ? seqcount_lockdep_reader_access+0x160/0x1c0
[ 190.345919][ C0] ? ktime_get_real_ts64+0x420/0x420
[ 190.345941][ C0] _raw_spin_lock_irqsave+0xa8/0xf0
[ 190.345958][ C0] ? hrtimer_interrupt+0xfc/0x9c0
[ 190.345974][ C0] ? _raw_spin_lock+0x40/0x40
[ 190.345987][ C0] ? kvm_sched_clock_read+0x11/0x20
[ 190.346012][ C0] ? sched_clock_cpu+0x75/0x430
[ 190.346027][ C0] ? lapic_next_event+0x11/0x20
[ 190.346045][ C0] ? clockevents_program_event+0x230/0x310
[ 190.346066][ C0] hrtimer_interrupt+0xfc/0x9c0
[ 190.346083][ C0] ? kvm_sched_clock_read+0x11/0x20
[ 190.346106][ C0] ? sched_clock+0x3f/0x60
[ 190.346123][ C0] ? sched_clock_cpu+0x75/0x430
[ 190.346145][ C0] ? local_clock+0x20/0x20
[ 190.346158][ C0] ? __irq_exit_rcu+0xd3/0x190
[ 190.346173][ C0] ? irq_exit_rcu+0x20/0x20
[ 190.346189][ C0] __sysvec_apic_timer_interrupt+0xfb/0x3b0
[ 190.346210][ C0] sysvec_apic_timer_interrupt+0x9f/0xc0
[ 190.346236][ C0]
[ 190.346240][ C0]
[ 190.346245][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 190.346263][ C0] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
[ 190.346280][ C0] Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 2a 73 ef f6 48 89 df e8 42 45 f0 f6 e8 8d eb 13 f7 fb bf 01 00 00 00 52 6a e3 f6 65 8b 05 33 b5 8b 75 85 c0 74 02 5b c3 e8 50 99 88
[ 190.346292][ C0] RSP: 0018:ffffc900042cfc98 EFLAGS: 00000282
[ 190.346304][ C0] RAX: acca482d44173100 RBX: ffff88802b99d340 RCX: acca482d44173100
[ 190.346315][ C0] RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: 0000000000000001
[ 190.346326][ C0] RBP: ffff88802b99d7d8 R08: ffffffff8e4a836f R09: 1ffffffff1c9506d
[ 190.346342][ C0] R10: dffffc0000000000 R11: fffffbfff1c9506e R12: 1ffff11005733afb
[ 190.346353][ C0] R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000
[ 190.346371][ C0] ? _raw_spin_unlock_irq+0x23/0x50
[ 190.346387][ C0] get_signal+0x11f5/0x1400
[ 190.346421][ C0] arch_do_signal_or_restart+0x96/0x780
[ 190.346449][ C0] ? get_sigframe_size+0x20/0x20
[ 190.346479][ C0] ? exit_to_user_mode_loop+0x3b/0x110
[ 190.346503][ C0] exit_to_user_mode_loop+0x70/0x110
[ 190.346526][ C0] exit_to_user_mode_prepare+0xf6/0x180
[ 190.346549][ C0] syscall_exit_to_user_mode+0x1a/0x50
[ 190.346575][ C0] do_syscall_64+0x61/0xb0
[ 190.346594][ C0] ? clear_bhb_loop+0x40/0x90
[ 190.346610][ C0] ? clear_bhb_loop+0x40/0x90
[ 190.346627][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 190.346643][ C0] RIP: 0033:0x7fcd1ba4a459
[ 190.346661][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[ 190.346673][ C0] RSP: 002b:00007fcd1ba0b218 EFLAGS: 00000246
[ 190.346684][ C0] RAX: 0000000000000000 RBX: 00007fcd1bad4308 RCX: 00007fcd1ba4a459
[ 190.346694][ C0] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000
[ 190.346704][ C0] RBP: 00007fcd1bad4300 R08: 0000000000000000 R09: 0000000000000000
[ 190.346713][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140
[ 190.346722][ C0] R13: 000020000006b000 R14: 0000200000000100 R15: 0000200000000680
[ 190.346740][ C0]
[ 190.346747][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.207 msecs