Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts. 2025/10/09 20:22:39 parsed 1 programs [ 59.365211][ T2153] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 2025/10/09 20:22:41 executed programs: 0 [ 161.308363][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 161.314981][ C0] rcu: 0-...!: (10004 ticks this GP) idle=671/1/0x4000000000000000 softirq=3494/3496 fqs=28 [ 161.325205][ C0] (t=10000 jiffies g=1625 q=4384) [ 161.330325][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 9919 jiffies! g1625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 161.342449][ C0] rcu: Possible timer handling issue on cpu=1 timer-softirq=652 [ 161.350142][ C0] rcu: rcu_preempt kthread starved for 9920 jiffies! g1625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 161.361409][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 161.371358][ C0] rcu: RCU grace-period kthread stack dump: [ 161.377234][ C0] task:rcu_preempt state:I stack:14712 pid: 13 ppid: 2 flags:0x00004000 [ 161.386428][ C0] Call Trace: [ 161.389701][ C0] [ 161.392862][ C0] __schedule+0x378/0x13e0 [ 161.397417][ C0] ? __mod_timer+0x1e0/0x3c0 [ 161.402077][ C0] schedule+0x68/0xb0 [ 161.406040][ C0] schedule_timeout+0xaf/0x140 [ 161.410777][ C0] ? destroy_timer_on_stack+0x10/0x10 [ 161.416121][ C0] rcu_gp_fqs_loop+0xfd/0x370 [ 161.420772][ C0] ? rcu_gp_init+0x5b0/0x5b0 [ 161.425336][ C0] rcu_gp_kthread+0x89/0xf0 [ 161.429835][ C0] kthread+0x124/0x150 [ 161.433885][ C0] ? set_kthread_struct+0x40/0x40 [ 161.438887][ C0] ret_from_fork+0x1f/0x30 [ 161.443284][ C0] [ 161.446283][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 161.452608][ C0] Sending NMI from CPU 0 to CPUs 1: [ 161.457912][ C1] NMI backtrace for cpu 1 [ 161.457916][ C1] CPU: 1 PID: 2653 Comm: syz.1.17 Not tainted syzkaller #0 [ 161.457926][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 161.457929][ C1] RIP: 0010:kvm_wait+0x3e/0x40 [ 161.457937][ C1] Code: 0b fa 0f b6 07 40 38 c6 74 15 fb c3 0f b6 07 40 38 c6 75 f7 66 90 0f 00 2d 0d e1 7b 01 f4 c3 66 90 0f 00 2d 02 e1 7b 01 fb f4 90 89 f9 89 f0 0f 30 66 90 c3 48 c1 e2 20 89 f6 48 09 d6 31 d2 [ 161.457940][ C1] RSP: 0018:ffffc900024fbda8 EFLAGS: 00000246 [ 161.457942][ C1] RAX: 0000000000000003 RBX: ffff88813bd2c780 RCX: 0000000000000008 [ 161.457944][ C1] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888106839fc8 [ 161.457946][ C1] RBP: ffff888106839fc8 R08: ffff88823ffee180 R09: 0000000000000000 [ 161.457948][ C1] R10: ffff88813bd2c780 R11: 0000000000000001 R12: 0000000000000000 [ 161.457949][ C1] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000080000 [ 161.457951][ C1] FS: 000055556978b500(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 [ 161.457954][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 161.457955][ C1] CR2: 00007fd0ee632a90 CR3: 0000000115e4f000 CR4: 00000000003506e0 [ 161.457960][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 161.457961][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 161.457963][ C1] Call Trace: [ 161.457965][ C1] [ 161.457966][ C1] __pv_queued_spin_lock_slowpath+0x279/0x2c0 [ 161.457971][ C1] do_raw_spin_lock+0x99/0xa0 [ 161.457974][ C1] lock_sock_nested+0x36/0x60 [ 161.457980][ C1] ? tipc_release+0x3b/0x5c0 [ 161.457984][ C1] tipc_release+0x3b/0x5c0 [ 161.457988][ C1] ? __sock_release+0x28/0xa0 [ 161.457992][ C1] __sock_release+0x32/0xa0 [ 161.457996][ C1] sock_close+0xf/0x20 [ 161.457999][ C1] __fput+0x8f/0x250 [ 161.458004][ C1] task_work_run+0x54/0x80 [ 161.458009][ C1] exit_to_user_mode_prepare+0x190/0x1a0 [ 161.458015][ C1] syscall_exit_to_user_mode+0x12/0x30 [ 161.458020][ C1] do_syscall_64+0x40/0x80 [ 161.458023][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 161.458028][ C1] RIP: 0033:0x7f3d86ee7de9 [ 161.458037][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 161.458040][ C1] RSP: 002b:00007ffc85317298 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 161.458043][ C1] RAX: 0000000000000000 RBX: 00007f3d87102ba0 RCX: 00007f3d86ee7de9 [ 161.458044][ C1] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 161.458046][ C1] RBP: 00007f3d87102ba0 R08: 0000000000000000 R09: 000000038531758f [ 161.458047][ C1] R10: 00007f3d87102ac0 R11: 0000000000000246 R12: 000000000000f2a6 [ 161.458049][ C1] R13: 00007f3d87101080 R14: ffffffffffffffff R15: 00007ffc853173b0 [ 161.458051][ C1] [ 161.458910][ C0] NMI backtrace for cpu 0 [ 161.742896][ C0] CPU: 0 PID: 2654 Comm: syz.1.17 Not tainted syzkaller #0 [ 161.750068][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 161.760116][ C0] Call Trace: [ 161.763385][ C0] [ 161.766304][ C0] dump_stack_lvl+0x41/0x5e [ 161.770800][ C0] nmi_cpu_backtrace.cold+0x32/0x80 [ 161.775973][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 161.781160][ C0] nmi_trigger_cpumask_backtrace+0x91/0xb0 [ 161.787043][ C0] rcu_dump_cpu_stacks+0xa5/0xd3 [ 161.792230][ C0] rcu_sched_clock_irq.cold+0x1ca/0x441 [ 161.797774][ C0] ? do_raw_spin_unlock+0x50/0xa0 [ 161.802878][ C0] ? timekeeping_advance+0x44a/0x630 [ 161.808145][ C0] update_process_times+0x87/0xc0 [ 161.813148][ C0] tick_sched_handle+0x1d/0x50 [ 161.817886][ C0] tick_sched_timer+0x5c/0x70 [ 161.822536][ C0] ? tick_sched_do_timer+0xf0/0xf0 [ 161.827635][ C0] __hrtimer_run_queues+0x138/0x330 [ 161.832839][ C0] hrtimer_interrupt+0x109/0x230 [ 161.837803][ C0] __sysvec_apic_timer_interrupt+0x63/0x130 [ 161.843702][ C0] sysvec_apic_timer_interrupt+0x65/0x90 [ 161.849411][ C0] [ 161.852358][ C0] [ 161.855297][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 161.861258][ C0] RIP: 0010:tipc_sk_rcv+0x2ff/0x8f0 [ 161.866437][ C0] Code: 77 7d 10 00 49 8b 7c 24 30 48 8d 74 24 40 e8 08 51 ff ff 49 8d bc 24 80 00 00 00 b8 ff ff ff ff f0 41 0f c1 84 24 80 00 00 00 <83> f8 01 0f 84 02 01 00 00 85 c0 0f 8e c2 02 00 00 8b 43 10 85 c0 [ 161.886126][ C0] RSP: 0018:ffffc90002583718 EFLAGS: 00000213 [ 161.892286][ C0] RAX: 0000000000000005 RBX: ffffc90002583898 RCX: ffffc90002583684 [ 161.900261][ C0] RDX: 0000000000000002 RSI: ffffc90002583758 RDI: ffff888106839fc0 [ 161.908220][ C0] RBP: 00000000787d71ba R08: ffffc900025836dc R09: ffffc900025836dc [ 161.916175][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888106839f40 [ 161.924128][ C0] R13: ffffc900025838b0 R14: 0000000026593277 R15: 000000000000001f [ 161.932082][ C0] ? tipc_sk_rcv+0x2e8/0x8f0 [ 161.936654][ C0] ? find_held_lock+0x2b/0x80 [ 161.941307][ C0] ? lockdep_init_map_type+0x49/0x150 [ 161.946650][ C0] tipc_node_xmit+0xc3/0x410 [ 161.951263][ C0] ? __kmalloc_node_track_caller+0x32e/0x3e0 [ 161.957302][ C0] ? tipc_buf_acquire+0x1a/0x50 [ 161.962225][ C0] ? skb_release_data+0x136/0x150 [ 161.967399][ C0] ? kfree+0xe6/0x4b0 [ 161.971451][ C0] tipc_node_distr_xmit+0xac/0xe0 [ 161.976462][ C0] ? verify_cpu+0x100/0x100 [ 161.980938][ C0] tipc_sk_rcv+0x2e8/0x8f0 [ 161.985334][ C0] ? find_held_lock+0x2b/0x80 [ 161.989993][ C0] ? lockdep_init_map_type+0x49/0x150 [ 161.995350][ C0] tipc_node_xmit+0xc3/0x410 [ 161.999919][ C0] ? save_stack+0x80/0xa0 [ 162.004509][ C0] ? get_page_from_freelist+0x921/0x1980 [ 162.010116][ C0] ? __alloc_pages+0xe1/0x240 [ 162.014776][ C0] ? alloc_pages_vma+0x7c/0x2e0 [ 162.019618][ C0] tipc_sk_push_backlog+0x94/0x190 [ 162.024709][ C0] tipc_sk_filter_rcv+0x22f/0xed0 [ 162.029722][ C0] ? tipc_sk_rcv+0x1a2/0x8f0 [ 162.034620][ C0] tipc_sk_rcv+0x405/0x8f0 [ 162.039020][ C0] ? __kmalloc_node_track_caller+0x32e/0x3e0 [ 162.044985][ C0] ? tipc_buf_acquire+0x1a/0x50 [ 162.049821][ C0] ? find_held_lock+0x2b/0x80 [ 162.054587][ C0] ? lockdep_init_map_type+0x49/0x150 [ 162.059963][ C0] tipc_node_xmit+0xc3/0x410 [ 162.064532][ C0] ? tipc_sk_filter_rcv+0xb0e/0xed0 [ 162.069706][ C0] ? do_raw_spin_unlock+0x50/0xa0 [ 162.074709][ C0] ? _raw_spin_unlock+0x1a/0x30 [ 162.079536][ C0] tipc_node_distr_xmit+0xac/0xe0 [ 162.084579][ C0] tipc_sk_backlog_rcv+0x53/0x80 [ 162.089492][ C0] ? do_raw_spin_unlock+0x50/0xa0 [ 162.094493][ C0] __release_sock+0x54/0xd0 [ 162.098974][ C0] release_sock+0x26/0xa0 [ 162.103281][ C0] sock_setsockopt+0xb3/0xcb0 [ 162.107964][ C0] ? __fget_files+0xae/0xe0 [ 162.112442][ C0] __sys_setsockopt+0xe8/0x100 [ 162.117182][ C0] __x64_sys_setsockopt+0x1c/0x20 [ 162.122181][ C0] do_syscall_64+0x33/0x80 [ 162.126574][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 162.132462][ C0] RIP: 0033:0x7f3d86ee7de9 [ 162.136961][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 162.156560][ C0] RSP: 002b:00007f3d8695a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 162.165032][ C0] RAX: ffffffffffffffda RBX: 00007f3d87100fa0 RCX: 00007f3d86ee7de9 [ 162.173237][ C0] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 [ 162.181185][ C0] RBP: 00007f3d86f692a0 R08: 0000000000000004 R09: 0000000000000000 [ 162.189142][ C0] R10: 0000400000000540 R11: 0000000000000246 R12: 0000000000000000 [ 162.197119][ C0] R13: 0000000000000000 R14: 00007f3d87100fa0 R15: 00007ffc85317138 [ 162.205088][ C0]