Warning: Permanently added '10.128.0.255' (ED25519) to the list of known hosts.
executing program
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[ 222.521695][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 222.528818][ C1] rcu: (detected by 1, t=10502 jiffies, g=8657, q=70 ncpus=2)
[ 222.536395][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294959364-4294948862), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 222.549780][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g8657 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[ 222.560994][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 222.570976][ C1] rcu: RCU grace-period kthread stack dump:
[ 222.576902][ C1] task:rcu_preempt state:R running task stack:27752 pid:17 ppid:2 flags:0x00004000
[ 222.587738][ C1] Call Trace:
[ 222.591063][ C1]
[ 222.594028][ C1] __schedule+0x14d2/0x44d0
[ 222.598608][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x110
[ 222.604561][ C1] ? lockdep_hardirqs_on+0x98/0x150
[ 222.609805][ C1] ? _raw_spin_unlock_irqrestore+0xae/0x110
[ 222.615754][ C1] ? asan.module_dtor+0x20/0x20
[ 222.620649][ C1] ? enqueue_timer+0x4ab/0x530
[ 222.625452][ C1] ? __mod_timer+0x984/0xdb0
[ 222.630081][ C1] schedule+0xbd/0x170
[ 222.634197][ C1] schedule_timeout+0x160/0x280
[ 222.639107][ C1] ? console_conditional_schedule+0x40/0x40
[ 222.645045][ C1] ? update_process_times+0x1b0/0x1b0
[ 222.650457][ C1] ? prepare_to_swait_event+0x339/0x360
[ 222.656043][ C1] rcu_gp_fqs_loop+0x302/0x1560
[ 222.660933][ C1] ? rcu_gp_init+0x110e/0x1510
[ 222.665742][ C1] ? rcu_gp_kthread+0x380/0x380
[ 222.670636][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760
[ 222.676646][ C1] ? rcu_gp_init+0x1510/0x1510
[ 222.681446][ C1] ? rcu_gp_cleanup+0xb4c/0xca0
[ 222.686343][ C1] ? _raw_spin_unlock_irq+0x23/0x50
[ 222.691568][ C1] ? lockdep_hardirqs_on+0x98/0x150
[ 222.696815][ C1] rcu_gp_kthread+0x99/0x380
[ 222.701471][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 222.706630][ C1] ? __kthread_parkme+0x7a/0x1c0
[ 222.711607][ C1] ? __kthread_parkme+0x162/0x1c0
[ 222.716680][ C1] kthread+0x2fa/0x390
[ 222.720776][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 222.725925][ C1] ? kthread_blkcg+0xd0/0xd0
[ 222.730535][ C1] ret_from_fork+0x48/0x80
[ 222.734983][ C1] ? kthread_blkcg+0xd0/0xd0
[ 222.739601][ C1] ret_from_fork_asm+0x11/0x20
[ 222.744421][ C1]
[ 222.747475][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 222.753832][ C1] Sending NMI from CPU 1 to CPUs 0:
[ 222.759093][ C0] NMI backtrace for cpu 0
[ 222.759114][ C0] CPU: 0 PID: 5816 Comm: syz-executor100 Not tainted syzkaller #0
[ 222.759131][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 222.759140][ C0] RIP: 0010:rcu_is_watching+0x15/0xb0
[ 222.759165][ C0] Code: 89 f6 e8 9e 11 e2 02 e9 53 ff ff ff 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56 53 65 ff 05 58 16 94 7e e8 2b bd fe 08 <89> c3 83 f8 08 73 60 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 30
[ 222.759179][ C0] RSP: 0018:ffffc90000007ae0 EFLAGS: 00000086
[ 222.759193][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: fce714551c2b6e00
[ 222.759204][ C0] RDX: 0000000000000000 RSI: ffffffff8afc71a0 RDI: ffffffff8afc7160
[ 222.759215][ C0] RBP: ffffc90000007c08 R08: ffffffff8e4a7fef R09: 1ffffffff1c94ffd
[ 222.759227][ C0] R10: dffffc0000000000 R11: fffffbfff1c94ffe R12: 1ffff92000000f6c
[ 222.759239][ C0] R13: ffffffff970ba298 R14: 0000000000000000 R15: dffffc0000000000
[ 222.759250][ C0] FS: 00007f41abf406c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[ 222.759264][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 222.759275][ C0] CR2: 0000200000000058 CR3: 000000007c66c000 CR4: 00000000003506f0
[ 222.759289][ C0] Call Trace:
[ 222.759295][ C0]
[ 222.759302][ C0] lock_acquire+0xcb/0x410
[ 222.759321][ C0] ? verify_lock_unused+0x140/0x140
[ 222.759342][ C0] ? read_lock_is_recursive+0x20/0x20
[ 222.759360][ C0] ? verify_lock_unused+0x140/0x140
[ 222.759380][ C0] ? do_raw_spin_lock+0x121/0x2c0
[ 222.759402][ C0] _raw_spin_lock_irqsave+0xa8/0xf0
[ 222.759418][ C0] ? debug_object_deactivate+0x67/0x350
[ 222.759440][ C0] ? _raw_spin_lock+0x40/0x40
[ 222.759460][ C0] debug_object_deactivate+0x67/0x350
[ 222.759484][ C0] debug_deactivate+0x1d/0x1d0
[ 222.759503][ C0] __hrtimer_run_queues+0x2bf/0xc40
[ 222.759524][ C0] ? ktime_get_real_ts64+0x420/0x420
[ 222.759548][ C0] ? hrtimer_interrupt+0x9c0/0x9c0
[ 222.759564][ C0] ? ktime_get_update_offsets_now+0x3d2/0x3f0
[ 222.759589][ C0] hrtimer_interrupt+0x3c9/0x9c0
[ 222.759620][ C0] __sysvec_apic_timer_interrupt+0xfb/0x3b0
[ 222.759643][ C0] sysvec_apic_timer_interrupt+0x9f/0xc0
[ 222.759669][ C0]
[ 222.759673][ C0]
[ 222.759678][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 222.759696][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60
[ 222.759716][ C0] Code: 10 20 7e 7e 65 8b 15 11 20 7e 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 <83> fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc
[ 222.759729][ C0] RSP: 0018:ffffc9000472fd48 EFLAGS: 00000246
[ 222.759741][ C0] RAX: ffffffff81542872 RBX: 0000000000000000 RCX: ffff88802c4c1e00
[ 222.759752][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 222.759761][ C0] RBP: 0000000000000002 R08: ffffffff8e4a7fef R09: 1ffffffff1c94ffd
[ 222.759772][ C0] R10: dffffc0000000000 R11: fffffbfff1c94ffe R12: 1ffff110058984ec
[ 222.759784][ C0] R13: 0000000100000000 R14: ffff88802c4c1e00 R15: ffff88802c4c2760
[ 222.759800][ C0] ? signal_setup_done+0x232/0x310
[ 222.759820][ C0] signal_setup_done+0x232/0x310
[ 222.759839][ C0] arch_do_signal_or_restart+0x492/0x780
[ 222.759867][ C0] ? get_sigframe_size+0x20/0x20
[ 222.759899][ C0] ? exit_to_user_mode_loop+0x3b/0x110
[ 222.759924][ C0] exit_to_user_mode_loop+0x70/0x110
[ 222.759958][ C0] exit_to_user_mode_prepare+0xf6/0x180
[ 222.759980][ C0] syscall_exit_to_user_mode+0x1a/0x50
[ 222.760005][ C0] do_syscall_64+0x61/0xb0
[ 222.760023][ C0] ? clear_bhb_loop+0x40/0x90
[ 222.760039][ C0] ? clear_bhb_loop+0x40/0x90
[ 222.760055][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 222.760088][ C0] RIP: 0033:0x7f41abfa5b70
[ 222.760104][ C0] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 28 03 00 e8 15 12 fb ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
[ 222.760116][ C0] RSP: 002b:00007f41abf3fbb8 EFLAGS: 00000246
[ 222.760127][ C0] RAX: 0000000000000000 RBX: 00007f41ac00a308 RCX: 00007f41abf7fed9
[ 222.760138][ C0] RDX: 00007f41abf3fbc0 RSI: 00007f41abf3fcf0 RDI: 0000000000000021
[ 222.760148][ C0] RBP: 00007f41ac00a300 R08: 00007f41abf406c0 R09: 00007f41abf406c0
[ 222.760159][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f41ac00a30c
[ 222.760168][ C0] R13: 0000000000000000 R14: 00007ffef062d5f0 R15: 00007ffef062d6d8
[ 222.760187][ C0]
[ 222.760193][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.105 msecs