Warning: Permanently added '10.128.0.37' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 153.311647][ T22] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2666 jiffies s: 2217 root: 0x1/. [ 153.324004][ T22] rcu: blocking rcu_node structures (internal RCU debug): [ 153.331160][ T22] Sending NMI from CPU 1 to CPUs 0: [ 153.336444][ C0] NMI backtrace for cpu 0 [ 153.336494][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 [ 153.336509][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 153.336533][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x58/0x60 [ 153.336569][ C0] Code: 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 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 0f 1f 80 00 00 00 00 48 8b 04 24 65 48 8b 15 44 fa 7f 7e 65 8b [ 153.336580][ C0] RSP: 0018:ffffc90000006fd8 EFLAGS: 00000046 [ 153.336594][ C0] RAX: ffffffff813a104b RBX: 00000000b8e3b9f0 RCX: ffffffff8c8bc740 [ 153.336605][ C0] RDX: 0000000000000100 RSI: ffffffff8adf0d00 RDI: ffffffff8adf0cc0 [ 153.336616][ C0] RBP: 0000000000000001 R08: dffffc0000000000 R09: 1ffffffff215ee48 [ 153.336626][ C0] R10: dffffc0000000000 R11: fffffbfff215ee49 R12: dffffc0000000000 [ 153.336637][ C0] R13: dffffc0000000001 R14: ffffffff813a1008 R15: ffff88813fff92e0 [ 153.336648][ C0] FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 153.336662][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 153.336672][ C0] CR2: 0000555590540328 CR3: 0000000074b1c000 CR4: 00000000003506f0 [ 153.336686][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 153.336694][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 153.336704][ C0] Call Trace: [ 153.336713][ C0] [ 153.336725][ C0] __virt_addr_valid+0x1cb/0x540 [ 153.336749][ C0] kasan_addr_to_slab+0x9/0xc0 [ 153.336769][ C0] __kasan_record_aux_stack+0xf/0xc0 [ 153.336783][ C0] irq_work_queue_on+0x10f/0x260 [ 153.336805][ C0] rcu_read_unlock_special+0x3c9/0x510 [ 153.336823][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 153.336839][ C0] ? __cant_sleep+0x220/0x220 [ 153.336857][ C0] __rcu_read_unlock+0x78/0xd0 [ 153.336877][ C0] ? trace_call_bpf+0xbf/0x6b0 [ 153.336896][ C0] trace_call_bpf+0x5bb/0x6b0 [ 153.336918][ C0] ? trace_call_bpf+0xbf/0x6b0 [ 153.336938][ C0] ? __bpf_trace_bpf_trace_printk+0x20/0x20 [ 153.336959][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 153.336972][ C0] ? sched_clock_cpu+0x6e/0x260 [ 153.336990][ C0] perf_trace_run_bpf_submit+0x79/0x1c0 [ 153.337013][ C0] perf_trace_preemptirq_template+0x268/0x320 [ 153.337033][ C0] ? irqentry_exit+0x4b/0x70 [ 153.337054][ C0] ? trace_event_raw_event_preemptirq_template+0x1f0/0x1f0 [ 153.337074][ C0] ? __irq_exit_rcu+0x147/0x230 [ 153.337088][ C0] ? irq_exit_rcu+0x20/0x20 [ 153.337102][ C0] ? irqentry_exit+0x4b/0x70 [ 153.337117][ C0] trace_hardirqs_on_prepare+0x146/0x190 [ 153.337136][ C0] irqentry_exit+0x4b/0x70 [ 153.337151][ C0] asm_sysvec_irq_work+0x16/0x20 [ 153.337169][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x510 [ 153.337184][ C0] Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 33 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 [ 153.337195][ C0] RSP: 0018:ffffc900000074e0 EFLAGS: 00000206 [ 153.337207][ C0] RAX: 935a965bd9839d00 RBX: 1ffff92000000ea4 RCX: 935a965bd9839d00 [ 153.337218][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8c10a0 RDI: ffffffff8adf0d20 [ 153.337229][ C0] RBP: ffffc900000075d0 R08: ffffffff90af7307 R09: 1ffffffff215ee60 [ 153.337239][ C0] R10: dffffc0000000000 R11: fffffbfff215ee61 R12: 0000000000000246 [ 153.337250][ C0] R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001 [ 153.337271][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 153.337287][ C0] ? packet_rcv+0x167/0x13d0 [ 153.337305][ C0] __rcu_read_unlock+0x78/0xd0 [ 153.337318][ C0] ? dev_queue_xmit_nit+0x29/0xbb0 [ 153.337334][ C0] dev_queue_xmit_nit+0xa80/0xbb0 [ 153.337355][ C0] ? dev_queue_xmit_nit+0x29/0xbb0 [ 153.337373][ C0] dev_hard_start_xmit+0x154/0x870 [ 153.337396][ C0] sch_direct_xmit+0x25a/0x4b0 [ 153.337416][ C0] ? mrp_pdu_parse_vecattr_event+0x230/0x230 [ 153.337432][ C0] ? __alloc_skb+0x22a/0x7e0 [ 153.337450][ C0] ? call_timer_fn+0x1a0/0x670 [ 153.337464][ C0] ? __run_timers+0x53e/0x800 [ 153.337481][ C0] __dev_queue_xmit+0x1771/0x37c0 [ 153.337501][ C0] ? __dev_queue_xmit+0x26b/0x37c0 [ 153.337519][ C0] ? netdev_core_pick_tx+0x340/0x340 [ 153.337540][ C0] ? __kmem_cache_alloc_node+0x140/0x260 [ 153.337556][ C0] ? eth_header+0x117/0x200 [ 153.337570][ C0] ? memcpy+0x3c/0x60 [ 153.337585][ C0] ? eth_header+0xe0/0x200 [ 153.337599][ C0] ? llc_sysctl_exit+0x60/0x60 [ 153.337612][ C0] ? lapbeth_data_transmit+0x1f0/0x2a0 [ 153.337628][ C0] ? lapbeth_data_indication+0x3e0/0x3e0 [ 153.337643][ C0] lapb_data_transmit+0x86/0xa0 [ 153.337662][ C0] lapb_transmit_buffer+0x15f/0x1f0 [ 153.337680][ C0] lapb_t1timer_expiry+0x652/0xa70 [ 153.337701][ C0] call_timer_fn+0x1ac/0x670 [ 153.337715][ C0] ? lapb_start_t1timer+0xf0/0xf0 [ 153.337731][ C0] ? call_timer_fn+0xcf/0x670 [ 153.337745][ C0] ? __run_timers+0x800/0x800 [ 153.337762][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 153.337777][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 153.337791][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 153.337805][ C0] ? lapb_start_t1timer+0xf0/0xf0 [ 153.337823][ C0] __run_timers+0x53e/0x800 [ 153.337843][ C0] ? detach_timer+0x350/0x350 [ 153.337860][ C0] ? lock_chain_count+0x20/0x20 [ 153.337881][ C0] run_timer_softirq+0x63/0xf0 [ 153.337896][ C0] handle_softirqs+0x2a1/0x930 [ 153.337914][ C0] ? __irq_exit_rcu+0x13b/0x230 [ 153.337930][ C0] ? do_softirq+0x210/0x210 [ 153.337945][ C0] ? irqtime_account_irq+0xb2/0x1b0 [ 153.337960][ C0] __irq_exit_rcu+0x13b/0x230 [ 153.337974][ C0] ? irq_exit_rcu+0x20/0x20 [ 153.337993][ C0] irq_exit_rcu+0x5/0x20 [ 153.338005][ C0] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 153.338020][ C0] [ 153.338024][ C0] [ 153.338029][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 153.338046][ C0] RIP: 0010:default_idle+0xb/0x10 [ 153.338060][ C0] Code: 48 89 df e8 47 c2 9b f7 e9 44 ff ff ff e8 3d 07 f6 ff 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 66 90 0f 00 2d 57 eb 4e 00 fb f4 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48 [ 153.338070][ C0] RSP: 0018:ffffffff8c807d88 EFLAGS: 000002c6 [ 153.338083][ C0] RAX: 935a965bd9839d00 RBX: ffffffff8a37c257 RCX: 935a965bd9839d00 [ 153.338093][ C0] RDX: 0000000000000001 RSI: ffffffff8a8c10a0 RDI: ffffffff8adf0d20 [ 153.338103][ C0] RBP: ffffffff8c807ec0 R08: ffff8880b8e3580b R09: 1ffff110171c6b01 [ 153.338114][ C0] R10: dffffc0000000000 R11: ffffed10171c6b02 R12: 0000000000000000 [ 153.338124][ C0] R13: dffffc0000000000 R14: ffffffff8c8bc740 R15: 1ffffffff1900fbc [ 153.338137][ C0] ? default_idle_call+0x77/0xc0 [ 153.338156][ C0] default_idle_call+0x84/0xc0 [ 153.338170][ C0] do_idle+0x3a2/0x680 [ 153.338191][ C0] ? idle_inject_timer_fn+0x60/0x60 [ 153.338210][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 153.338230][ C0] ? schedule_idle+0x57/0x90 [ 153.338250][ C0] cpu_startup_entry+0x3f/0x60 [ 153.338269][ C0] rest_init+0x2dc/0x300 [ 153.338284][ C0] ? time_init+0x33/0x33 [ 153.338303][ C0] arch_call_rest_init+0xa/0xa [ 153.338320][ C0] start_kernel+0x493/0x53c [ 153.338337][ C0] secondary_startup_64_no_verify+0xcf/0xdb [ 153.338367][ C0] [ 153.338373][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.928 msecs