Warning: Permanently added '10.128.1.224' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 78.742793][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.751804][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.760551][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.769437][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 128.982613][ T0] NOHZ tick-stop error: local softirq work is pending, handler #08!!! [ 183.802321][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 183.809372][ C0] rcu: (detected by 0, t=10502 jiffies, g=8529, q=59 ncpus=2) [ 183.816910][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294955450-4294944948), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 183.830294][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g8529 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 183.841502][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 183.851487][ C0] rcu: RCU grace-period kthread stack dump: [ 183.857528][ C0] task:rcu_preempt state:R running task stack:27752 pid:17 ppid:2 flags:0x00004000 [ 183.868621][ C0] Call Trace: [ 183.872017][ C0] [ 183.874983][ C0] __schedule+0x14d2/0x44d0 [ 183.879851][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 183.885957][ C0] ? asan.module_dtor+0x20/0x20 [ 183.891023][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 183.897088][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 183.902447][ C0] ? preempt_schedule_irq+0xaa/0x140 [ 183.908177][ C0] preempt_schedule_irq+0xb5/0x140 [ 183.913353][ C0] ? preempt_schedule_notrace+0x110/0x110 [ 183.919203][ C0] ? rcu_irq_exit_check_preempt+0xdf/0x210 [ 183.925049][ C0] irqentry_exit+0x67/0x70 [ 183.929581][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 183.935758][ C0] RIP: 0010:__timer_delete_sync+0x191/0x2c0 [ 183.941694][ C0] Code: 61 10 00 49 89 dc 4d 85 f6 48 bb 00 00 00 00 00 fc ff df 75 07 e8 ff 60 10 00 eb 06 e8 f8 60 10 00 fb 65 44 8b 35 f7 85 8e 7e <44> 89 f6 81 e6 00 00 0f 00 31 ff e8 8f 64 10 00 41 81 e6 00 00 0f [ 183.961874][ C0] RSP: 0018:ffffc90000167aa0 EFLAGS: 00000293 [ 183.968080][ C0] RAX: ffffffff81752fc8 RBX: dffffc0000000000 RCX: ffff88801ba60000 [ 183.976172][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 183.984261][ C0] RBP: ffffc90000167b70 R08: ffffffff8e4a212f R09: 1ffffffff1c94425 [ 183.992466][ C0] R10: dffffc0000000000 R11: fffffbfff1c94426 R12: ffffc90000167ba0 [ 184.000475][ C0] R13: 1ffff9200002cf58 R14: 0000000080000000 R15: 0000000000000000 [ 184.008684][ C0] ? __timer_delete_sync+0x188/0x2c0 [ 184.014038][ C0] ? timer_delete_sync+0x20/0x20 [ 184.019986][ C0] schedule_timeout+0x16a/0x280 [ 184.024868][ C0] ? console_conditional_schedule+0x40/0x40 [ 184.030795][ C0] ? update_process_times+0x1b0/0x1b0 [ 184.036466][ C0] ? prepare_to_swait_event+0x339/0x360 [ 184.042050][ C0] rcu_gp_fqs_loop+0x302/0x1560 [ 184.046939][ C0] ? rcu_gp_init+0x110e/0x1510 [ 184.051751][ C0] ? rcu_gp_kthread+0x380/0x380 [ 184.056649][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 184.062676][ C0] ? rcu_gp_init+0x1510/0x1510 [ 184.067565][ C0] ? rcu_gp_cleanup+0xb4c/0xca0 [ 184.072809][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 184.078037][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 184.083795][ C0] rcu_gp_kthread+0x99/0x380 [ 184.088431][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 184.093664][ C0] ? __kthread_parkme+0x7a/0x1c0 [ 184.098635][ C0] ? __kthread_parkme+0x162/0x1c0 [ 184.103793][ C0] kthread+0x2fa/0x390 [ 184.107891][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 184.113039][ C0] ? kthread_blkcg+0xd0/0xd0 [ 184.117655][ C0] ret_from_fork+0x48/0x80 [ 184.122283][ C0] ? kthread_blkcg+0xd0/0xd0 [ 184.127001][ C0] ret_from_fork_asm+0x11/0x20 [ 184.131896][ C0] [ 184.135026][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 184.141385][ C0] Sending NMI from CPU 0 to CPUs 1: [ 184.146727][ C1] NMI backtrace for cpu 1 [ 184.146741][ C1] CPU: 1 PID: 5793 Comm: syz-executor309 Not tainted syzkaller #0 [ 184.146755][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 184.146763][ C1] RIP: 0010:check_preemption_disabled+0x6/0x110 [ 184.146788][ C1] Code: cc cc cc cc f3 0f 1e fa 48 c7 c7 20 6f fc 8a 48 c7 c6 60 6f fc 8a eb 0c 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 53 <48> 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 05 2d [ 184.146799][ C1] RSP: 0018:ffffc900044afa70 EFLAGS: 00000046 [ 184.146813][ C1] RAX: 0000000000000001 RBX: ffff888078753c00 RCX: a5300f7617abba00 [ 184.146823][ C1] RDX: 0000000000000000 RSI: ffffffff8aaace60 RDI: ffffffff8afc6f80 [ 184.146832][ C1] RBP: 0000000000000000 R08: ffffc900044afcdf R09: 0000000000000000 [ 184.146841][ C1] R10: ffffc900044afcc0 R11: fffff52000895f9c R12: dffffc0000000000 [ 184.146851][ C1] R13: 0000000000000246 R14: ffffffff8cd2ffe0 R15: 00000000ffffffff [ 184.146861][ C1] FS: 00007fbb6f1d56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 184.146873][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 184.146883][ C1] CR2: 00007fbb6f241720 CR3: 000000007b3d8000 CR4: 00000000003506e0 [ 184.146898][ C1] Call Trace: [ 184.146906][ C1] [ 184.146913][ C1] lock_is_held_type+0x104/0x190 [ 184.146932][ C1] __might_resched+0xf6/0x610 [ 184.146952][ C1] ? __might_sleep+0xe0/0xe0 [ 184.146968][ C1] ? __might_fault+0xaa/0x120 [ 184.146981][ C1] ? __lock_acquire+0x7c80/0x7c80 [ 184.146995][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 184.147009][ C1] ? get_signal+0x11f5/0x1400 [ 184.147030][ C1] __might_fault+0x71/0x120 [ 184.147044][ C1] __rseq_handle_notify_resume+0x563/0x1170 [ 184.147062][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 184.147079][ C1] ? __bpf_trace_rseq_ip_fixup+0x1f0/0x1f0 [ 184.147096][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 184.147111][ C1] ? lock_chain_count+0x20/0x20 [ 184.147126][ C1] ? arch_do_signal_or_restart+0x37f/0x7b0 [ 184.147146][ C1] arch_do_signal_or_restart+0x3bb/0x7b0 [ 184.147166][ C1] ? get_sigframe_size+0x20/0x20 [ 184.147190][ C1] ? exit_to_user_mode_loop+0x3b/0x110 [ 184.147208][ C1] exit_to_user_mode_loop+0x70/0x110 [ 184.147226][ C1] exit_to_user_mode_prepare+0xf6/0x180 [ 184.147243][ C1] syscall_exit_to_user_mode+0x1a/0x50 [ 184.147259][ C1] do_syscall_64+0x61/0xb0 [ 184.147271][ C1] ? clear_bhb_loop+0x40/0x90 [ 184.147287][ C1] ? clear_bhb_loop+0x40/0x90 [ 184.147303][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 184.147318][ C1] RIP: 0033:0x7fbb6f215057 [ 184.147329][ C1] Code: 14 25 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 [ 184.147339][ C1] RSP: 002b:00007fbb6f1d5178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 184.147353][ C1] RAX: 00000000000000ca RBX: 00007fbb6f29f328 RCX: 00007fbb6f215059 [ 184.147362][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbb6f29f328 [ 184.147371][ C1] RBP: 00007fbb6f29f320 R08: 00007fbb6f1d56c0 R09: 00007fbb6f1d56c0 [ 184.147380][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbb6f29f32c [ 184.147389][ C1] R13: 0000000000000000 R14: 00007ffcd8b16ae0 R15: 00007ffcd8b16bc8 [ 184.147403][ C1]