Warning: Permanently added '10.128.0.67' (ED25519) to the list of known hosts.
executing program
executing program
executing program
[ 204.957519][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 204.957566][ C1] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P29/2:b..l P16/2:b..l
[ 204.957625][ C1] rcu: (detected by 1, t=10502 jiffies, g=9981, q=1279 ncpus=2)
[ 204.957644][ C1] task:ktimers/0 state:D stack:26016 pid:16 tgid:16 ppid:2 task_flags:0x4208040 flags:0x00080000
[ 204.957709][ C1] Call Trace:
[ 204.957715][ C1]
[ 204.957726][ C1] __schedule+0x1553/0x5240
[ 204.957789][ C1] ? kvm_sched_clock_read+0x11/0x20
[ 204.957826][ C1] ? __pfx___schedule+0x10/0x10
[ 204.957864][ C1] schedule_rtlock+0x30/0x70
[ 204.957888][ C1] rtlock_slowlock_locked+0x3638/0x3c80
[ 204.957912][ C1] ? rcu_is_watching+0x15/0xb0
[ 204.957945][ C1] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10
[ 204.957973][ C1] ? rtlock_slowlock_locked+0x2a8/0x3c80
[ 204.958003][ C1] ? __pfx_rtlock_slowlock_locked+0x10/0x10
[ 204.958037][ C1] ? rcu_is_watching+0x15/0xb0
[ 204.958061][ C1] rt_spin_lock+0x165/0x400
[ 204.958085][ C1] ? __pfx_rt_spin_lock+0x10/0x10
[ 204.958114][ C1] mix_interrupt_randomness+0x1a9/0x2b0
[ 204.958140][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.958167][ C1] call_timer_fn+0x192/0x640
[ 204.958184][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.958201][ C1] ? call_timer_fn+0xd4/0x640
[ 204.958217][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 204.958241][ C1] ? _raw_spin_unlock_irq+0x23/0x50
[ 204.958267][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.958294][ C1] __run_timer_base+0x6a3/0x9f0
[ 204.958332][ C1] ? __pfx___run_timer_base+0x10/0x10
[ 204.958376][ C1] run_timer_softirq+0x67/0x170
[ 204.958403][ C1] handle_softirqs+0x1de/0x6f0
[ 204.958436][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 204.958463][ C1] run_ktimerd+0x69/0x100
[ 204.958478][ C1] smpboot_thread_fn+0x541/0xa50
[ 204.958507][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 204.958540][ C1] kthread+0x388/0x470
[ 204.958559][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 204.958585][ C1] ? __pfx_kthread+0x10/0x10
[ 204.958604][ C1] ret_from_fork+0x51e/0xb90
[ 204.958654][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 204.958678][ C1] ? __switch_to+0xc7d/0x1450
[ 204.958703][ C1] ? __pfx_kthread+0x10/0x10
[ 204.958722][ C1] ret_from_fork_asm+0x1a/0x30
[ 204.958919][ C1]
[ 204.958940][ C1] task:ktimers/1 state:D stack:26016 pid:29 tgid:29 ppid:2 task_flags:0x4208040 flags:0x00080000
[ 204.958996][ C1] Call Trace:
[ 204.959003][ C1]
[ 204.959013][ C1] __schedule+0x1553/0x5240
[ 204.959089][ C1] ? __lock_acquire+0x6b5/0x2cf0
[ 204.959191][ C1] ? plist_check_list+0x2f4/0x310
[ 204.959227][ C1] ? __pfx___schedule+0x10/0x10
[ 204.959296][ C1] schedule_rtlock+0x30/0x70
[ 204.959336][ C1] rtlock_slowlock_locked+0x3638/0x3c80
[ 204.959413][ C1] ? kvm_sched_clock_read+0x11/0x20
[ 204.959440][ C1] ? rtlock_slowlock_locked+0x2a8/0x3c80
[ 204.959470][ C1] ? __pfx_rtlock_slowlock_locked+0x10/0x10
[ 204.959505][ C1] ? rcu_is_watching+0x15/0xb0
[ 204.959530][ C1] rt_spin_lock+0x165/0x400
[ 204.959554][ C1] ? __pfx_rt_spin_lock+0x10/0x10
[ 204.959596][ C1] mix_interrupt_randomness+0x1a9/0x2b0
[ 204.959657][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.959685][ C1] call_timer_fn+0x192/0x640
[ 204.959703][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.959725][ C1] ? call_timer_fn+0xd4/0x640
[ 204.959744][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 204.959764][ C1] ? preempt_schedule_common+0x82/0xd0
[ 204.959792][ C1] ? preempt_schedule_thunk+0x16/0x30
[ 204.959821][ C1] ? __pfx_mix_interrupt_randomness+0x10/0x10
[ 204.959842][ C1] __run_timer_base+0x6a3/0x9f0
[ 204.959880][ C1] ? __pfx___run_timer_base+0x10/0x10
[ 204.959921][ C1] run_timer_softirq+0x67/0x170
[ 204.959948][ C1] handle_softirqs+0x1de/0x6f0
[ 204.959981][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 204.960007][ C1] run_ktimerd+0x69/0x100
[ 204.960023][ C1] smpboot_thread_fn+0x541/0xa50
[ 204.960051][ C1] ? smpboot_thread_fn+0x4d/0xa50
[ 204.960085][ C1] kthread+0x388/0x470
[ 204.960103][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 204.960129][ C1] ? __pfx_kthread+0x10/0x10
[ 204.960148][ C1] ret_from_fork+0x51e/0xb90
[ 204.960176][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 204.960199][ C1] ? __switch_to+0xc7d/0x1450
[ 204.960224][ C1] ? __pfx_kthread+0x10/0x10
[ 204.960243][ C1] ret_from_fork_asm+0x1a/0x30
[ 204.960273][ C1]
[ 204.960305][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g9981 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[ 204.960325][ C1] rcu: Possible timer handling issue on cpu=1 timer-softirq=3409
[ 204.960334][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g9981 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[ 204.960352][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 204.960360][ C1] rcu: RCU grace-period kthread stack dump:
[ 204.960366][ C1] task:rcu_preempt state:I stack:27776 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00080000
[ 204.960423][ C1] Call Trace:
[ 204.960429][ C1]
[ 204.960439][ C1] __schedule+0x1553/0x5240
[ 204.960468][ C1] ? __lock_acquire+0x6b5/0x2cf0
[ 204.960496][ C1] ? rcu_is_watching+0x15/0xb0
[ 204.960517][ C1] ? __pfx___schedule+0x10/0x10
[ 204.960549][ C1] ? schedule+0x90/0x360
[ 204.960575][ C1] schedule+0x164/0x360
[ 204.960602][ C1] schedule_timeout+0x158/0x2c0
[ 204.960628][ C1] ? __pfx_schedule_timeout+0x10/0x10
[ 204.960653][ C1] ? __pfx_process_timeout+0x10/0x10
[ 204.960678][ C1] ? _raw_spin_unlock_irqrestore+0x4c/0x80
[ 204.960705][ C1] ? prepare_to_swait_event+0x340/0x370
[ 204.960736][ C1] rcu_gp_fqs_loop+0x312/0x11d0
[ 204.960765][ C1] ? irqentry_exit+0x59e/0x620
[ 204.960795][ C1] ? irqentry_exit+0x59e/0x620
[ 204.960819][ C1] ? rcu_is_watching+0x15/0xb0
[ 204.960849][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10
[ 204.960887][ C1] rcu_gp_kthread+0x9e/0x2b0
[ 204.960916][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10
[ 204.960942][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 204.960970][ C1] ? __kthread_parkme+0x7a/0x1f0
[ 204.960997][ C1] ? __kthread_parkme+0x19c/0x1f0
[ 204.961028][ C1] kthread+0x388/0x470
[ 204.961046][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10
[ 204.961071][ C1] ? __pfx_kthread+0x10/0x10
[ 204.961090][ C1] ret_from_fork+0x51e/0xb90
[ 204.961116][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 204.961140][ C1] ? __switch_to+0xc7d/0x1450
[ 204.961163][ C1] ? __pfx_kthread+0x10/0x10
[ 204.961182][ C1] ret_from_fork_asm+0x1a/0x30
[ 204.961211][ C1]
[ 204.961217][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 204.961249][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 204.961270][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 204.961286][ C1] RIP: 0010:__schedule+0x9d/0x5240
[ 204.961311][ C1] Code: f1 f1 f1 f1 f8 f8 f8 f2 48 89 04 0a 48 b8 f2 f2 f2 f2 f8 f8 f3 f3 48 89 44 0a 08 48 89 94 24 d8 00 00 00 66 c7 44 0a 0c 00 00 10 00 00 00 31 f6 e8 17 d0 06 f7 0f 1f 44 00 00 65 8b 05 bf 96
[ 204.961328][ C1] RSP: 0018:ffffc900001d7c20 EFLAGS: 00000a02
[ 204.961343][ C1] RAX: f3f3f8f8f2f2f2f2 RBX: ffff88801caf8000 RCX: dffffc0000000000
[ 204.961356][ C1] RDX: 1ffff9200003afa8 RSI: 0000000000000000 RDI: ffffc900001d7da0
[ 204.961368][ C1] RBP: ffffc900001d7e10 R08: 0000000000000000 R09: 0000000000000000
[ 204.961379][ C1] R10: dffffc0000000000 R11: fffffbfff1ed4797 R12: ffffffff8f6a3cb0
[ 204.961392][ C1] R13: 00000000ffffffff R14: 1ffff1100395f000 R15: dffffc0000000000
[ 204.961404][ C1] FS: 0000000000000000(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
[ 204.961418][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 204.961429][ C1] CR2: 0000562bba742000 CR3: 0000000038612000 CR4: 00000000003526f0
[ 204.961444][ C1] Call Trace:
[ 204.961450][ C1]
[ 204.961461][ C1] ? tick_nohz_next_event+0x47/0x3b0
[ 204.961501][ C1] ? __pfx___schedule+0x10/0x10
[ 204.961532][ C1] ? tick_nohz_idle_exit+0x2e1/0x3a0
[ 204.961560][ C1] schedule_idle+0x51/0x90
[ 204.961584][ C1] do_idle+0x573/0x5d0
[ 204.961610][ C1] ? __pfx_do_idle+0x10/0x10
[ 204.961633][ C1] ? do_idle+0xc/0x5d0
[ 204.961655][ C1] cpu_startup_entry+0x43/0x60
[ 204.961676][ C1] start_secondary+0x101/0x110
[ 204.961698][ C1] common_startup_64+0x13e/0x147
[ 204.961729][ C1]