Warning: Permanently added '10.128.1.161' (ED25519) to the list of known hosts.
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[  311.549356][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  311.556509][    C1] rcu: 	0-....: (1 GPs behind) idle=7564/1/0x4000000000000000 softirq=25979/25981 fqs=2100
[  311.567223][    C1] rcu: 	         hardirqs   softirqs   csw/system
[  311.573663][    C1] rcu: 	 number: 12023821          0            0
[  311.580098][    C1] rcu: 	cputime:     6233      46283            0   ==> 52500(ms)
[  311.587932][    C1] rcu: 	(detected by 1, t=10505 jiffies, g=18593, q=226 ncpus=2)
[  311.595683][    C1] Sending NMI from CPU 1 to CPUs 0:
[  311.600923][    C0] NMI backtrace for cpu 0
[  311.600949][    C0] CPU: 0 PID: 6758 Comm: syz-executor355 Not tainted 6.6.102-syzkaller #0
[  311.600966][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[  311.600979][    C0] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x2e/0x80
[  311.601026][    C0] Code: 48 8b 04 24 65 48 8b 0d 90 2a 7e 7e 65 8b 15 91 2a 7e 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 57 83 b9 1c 16 00 00 00 <74> 4e 8b 91 f8 15 00 00 83 fa 03 75 43 48 8b 91 00 16 00 00 44 8b
[  311.601040][    C0] RSP: 0018:ffffc90000006dd8 EFLAGS: 00000046
[  311.601054][    C0] RAX: ffffffff81ac3d31 RBX: 0000000000000010 RCX: ffff88801e6cbc00
[  311.601066][    C0] RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
[  311.601075][    C0] RBP: ffffc90000006ed0 R08: dffffc0000000000 R09: 1ffffffff21b46a0
[  311.601087][    C0] R10: dffffc0000000000 R11: fffffbfff21b46a1 R12: ffffc900000071c0
[  311.601099][    C0] R13: dffffc0000000000 R14: 0000000000000500 R15: 0000000000000010
[  311.601110][    C0] FS:  0000555572be3380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
[  311.601124][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  311.601148][    C0] CR2: 000020000000014c CR3: 0000000018fb6000 CR4: 00000000003506f0
[  311.601162][    C0] Call Trace:
[  311.601169][    C0]  <IRQ>
[  311.601178][    C0]  perf_prepare_sample+0x13a1/0x1c40
[  311.601202][    C0]  ? read_lock_is_recursive+0x20/0x20
[  311.601221][    C0]  ? perf_callchain+0x190/0x190
[  311.601241][    C0]  perf_event_output_forward+0x152/0x3a0
[  311.601276][    C0]  ? perf_event_output_forward+0x94/0x3a0
[  311.601292][    C0]  ? perf_prepare_header+0x1e0/0x1e0
[  311.601311][    C0]  ? perf_event_output_forward+0x2f7/0x3a0
[  311.601328][    C0]  ? perf_event_output_forward+0x94/0x3a0
[  311.601346][    C0]  ? __perf_event_account_interrupt+0x187/0x280
[  311.601365][    C0]  __perf_event_overflow+0x447/0x630
[  311.601382][    C0]  ? mark_lock+0x94/0x320
[  311.601403][    C0]  perf_swevent_event+0x2f5/0x5c0
[  311.601424][    C0]  ? perf_tp_event+0x13a0/0x13a0
[  311.601446][    C0]  perf_tp_event+0x4f9/0x13a0
[  311.601465][    C0]  ? verify_lock_unused+0x140/0x140
[  311.601483][    C0]  ? perf_trace_run_bpf_submit+0x1c0/0x1c0
[  311.601502][    C0]  ? perf_tp_event+0x12d7/0x13a0
[  311.601536][    C0]  ? sched_clock+0x3f/0x60
[  311.601553][    C0]  ? sched_clock_cpu+0x75/0x430
[  311.601567][    C0]  ? irq_work_single+0x122/0x230
[  311.601585][    C0]  ? __lock_acquire+0x7c80/0x7c80
[  311.601604][    C0]  perf_trace_run_bpf_submit+0xf4/0x1c0
[  311.601626][    C0]  perf_trace_preemptirq_template+0x281/0x340
[  311.601651][    C0]  ? asm_sysvec_irq_work+0x1a/0x20
[  311.601671][    C0]  ? trace_event_raw_event_preemptirq_template+0x1e0/0x1e0
[  311.601696][    C0]  ? __irq_exit_rcu+0xd3/0x190
[  311.601711][    C0]  ? irq_exit_rcu+0x20/0x20
[  311.601728][    C0]  ? asm_sysvec_irq_work+0x1a/0x20
[  311.601744][    C0]  trace_irq_enable+0xbf/0xe0
[  311.601767][    C0]  trace_hardirqs_on+0x18/0x40
[  311.601788][    C0]  asm_sysvec_irq_work+0x1a/0x20
[  311.601803][    C0] RIP: 0010:rcu_read_unlock_special+0x88/0x4c0
[  311.601829][    C0] Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 39 58 93 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
[  311.601842][    C0] RSP: 0018:ffffc900000075c0 EFLAGS: 00000206
[  311.601854][    C0] RAX: 6b2189b8c1a9d800 RBX: 1ffff92000000ec0 RCX: 6b2189b8c1a9d800
[  311.601866][    C0] RDX: dffffc0000000000 RSI: ffffffff8aaab9c0 RDI: ffffffff8afc66c0
[  311.601878][    C0] RBP: ffffc900000076a8 R08: ffffffff90da350f R09: 1ffffffff21b46a1
[  311.601889][    C0] R10: dffffc0000000000 R11: fffffbfff21b46a2 R12: ffffffff8cd35400
[  311.601901][    C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
[  311.601925][    C0]  ? __rcu_read_unlock+0xd0/0xd0
[  311.601955][    C0]  ? read_lock_is_recursive+0x20/0x20
[  311.601974][    C0]  ? deref_stack_reg+0x1bd/0x240
[  311.602002][    C0]  __rcu_read_unlock+0x7c/0xd0
[  311.602027][    C0]  is_bpf_text_address+0x27e/0x2a0
[  311.602046][    C0]  ? is_bpf_text_address+0x26/0x2a0
[  311.602064][    C0]  ? entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  311.602090][    C0]  kernel_text_address+0xa0/0xd0
[  311.602114][    C0]  __kernel_text_address+0xd/0x30
[  311.602136][    C0]  unwind_get_return_address+0x5d/0xc0
[  311.602163][    C0]  ? stack_trace_save+0xe0/0xe0
[  311.602182][    C0]  arch_stack_walk+0x11d/0x190
[  311.602206][    C0]  stack_trace_save+0x9c/0xe0
[  311.602225][    C0]  ? stack_trace_snprint+0xf0/0xf0
[  311.602243][    C0]  ? __lock_acquire+0x1260/0x7c80
[  311.602265][    C0]  kasan_set_track+0x4e/0x70
[  311.602283][    C0]  ? kasan_set_track+0x4e/0x70
[  311.602298][    C0]  ? kasan_save_free_info+0x2e/0x50
[  311.602318][    C0]  ? ____kasan_slab_free+0x126/0x1e0
[  311.602338][    C0]  ? slab_free_freelist_hook+0x130/0x1b0
[  311.602364][    C0]  ? kmem_cache_free+0xf8/0x280
[  311.602385][    C0]  ? rcu_core+0xcc4/0x1720
[  311.602398][    C0]  ? handle_softirqs+0x280/0x820
[  311.602412][    C0]  ? __irq_exit_rcu+0xc7/0x190
[  311.602426][    C0]  ? irq_exit_rcu+0x9/0x20
[  311.602439][    C0]  ? sysvec_apic_timer_interrupt+0xa4/0xc0
[  311.602462][    C0]  ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  311.602488][    C0]  ? unwind_next_frame+0x4b8/0x2970
[  311.602512][    C0]  ? arch_stack_walk+0x144/0x190
[  311.602526][    C0]  ? stack_trace_save+0x9c/0xe0
[  311.602544][    C0]  ? kasan_set_track+0x4e/0x70
[  311.602559][    C0]  ? __kasan_slab_alloc+0x6c/0x80
[  311.602576][    C0]  ? slab_post_alloc_hook+0x6e/0x4d0
[  311.602598][    C0]  ? kmem_cache_alloc+0x11e/0x2e0
[  311.602620][    C0]  ? __proc_create+0x370/0x8d0
[  311.602642][    C0]  ? proc_create_reg+0x8b/0x110
[  311.602664][    C0]  ? proc_create_net_data+0x99/0x1b0
[  311.602681][    C0]  ? ping_v6_proc_init_net+0x59/0x70
[  311.602705][    C0]  ? ops_init+0x397/0x640
[  311.602724][    C0]  ? setup_net+0x3a5/0xa00
[  311.602742][    C0]  ? copy_net_ns+0x36d/0x5e0
[  311.602759][    C0]  ? create_new_namespaces+0x3d3/0x6f0
[  311.602778][    C0]  ? copy_namespaces+0x430/0x4a0
[  311.602794][    C0]  ? copy_process+0x1700/0x3d70
[  311.602810][    C0]  ? kernel_clone+0x21b/0x840
[  311.602825][    C0]  ? __x64_sys_clone+0x18c/0x1e0
[  311.602842][    C0]  ? do_syscall_64+0x55/0xb0
[  311.602859][    C0]  ? entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  311.602899][    C0]  ? kmem_cache_free+0xf8/0x280
[  311.602921][    C0]  kasan_save_free_info+0x2e/0x50
[  311.602947][    C0]  ____kasan_slab_free+0x126/0x1e0
[  311.602966][    C0]  slab_free_freelist_hook+0x130/0x1b0
[  311.602994][    C0]  ? rcu_core+0xc51/0x1720
[  311.603007][    C0]  ? rcu_core+0xcc4/0x1720
[  311.603020][    C0]  kmem_cache_free+0xf8/0x280
[  311.603045][    C0]  ? inode_unpin_lru_isolating+0xb0/0xb0
[  311.603065][    C0]  rcu_core+0xcc4/0x1720
[  311.603089][    C0]  ? rcu_cpu_kthread_park+0x90/0x90
[  311.603105][    C0]  ? perf_trace_run_bpf_submit+0xf4/0x1c0
[  311.603127][    C0]  ? mark_lock+0x94/0x320
[  311.603146][    C0]  ? lockdep_hardirqs_on_prepare+0x400/0x760
[  311.603165][    C0]  ? lock_chain_count+0x20/0x20
[  311.603189][    C0]  handle_softirqs+0x280/0x820
[  311.603207][    C0]  ? __irq_exit_rcu+0xc7/0x190
[  311.603225][    C0]  ? do_softirq+0x180/0x180
[  311.603242][    C0]  ? irqtime_account_irq+0xb6/0x1c0
[  311.603265][    C0]  __irq_exit_rcu+0xc7/0x190
[  311.603280][    C0]  ? irq_exit_rcu+0x20/0x20
[  311.603300][    C0]  irq_exit_rcu+0x9/0x20
[  311.603313][    C0]  sysvec_apic_timer_interrupt+0xa4/0xc0
[  311.603338][    C0]  </IRQ>
[  311.603342][    C0]  <TASK>
[  311.603348][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  311.603375][    C0] RIP: 0010:unwind_next_frame+0x4b8/0x2970
[  311.603401][    C0] Code: 01 c8 48 83 e0 fe 4d 8d 3c 44 4c 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 3e 4d 63 2f 4d 01 fd 4c 89 ef 4c 89 f6 e8 b8 e5 4a 00 <49> 8d 47 04 4d 39 f5 4c 0f 46 e0 49 8d 47 fc 48 0f 47 d8 49 0f 46
[  311.603413][    C0] RSP: 0018:ffffc9000b947078 EFLAGS: 00000293
[  311.603426][    C0] RAX: ffffffff813aa778 RBX: ffffffff8e624728 RCX: ffff88801e6cbc00
[  311.603438][    C0] RDX: 0000000000000000 RSI: ffffffff81dbf44d RDI: ffffffff81dbf449
[  311.603449][    C0] RBP: ffffffff8e624724 R08: ffffc9000b947210 R09: 0000000000000003
[  311.603460][    C0] R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff8e624728
[  311.603470][    C0] R13: ffffffff81dbf449 R14: ffffffff81dbf44d R15: ffffffff8e624728
[  311.603482][    C0]  ? kmem_cache_alloc+0x11d/0x2e0
[  311.603504][    C0]  ? kmem_cache_alloc+0x119/0x2e0
[  311.603528][    C0]  ? unwind_next_frame+0x4b8/0x2970
[  311.603553][    C0]  ? kmem_cache_alloc+0x11d/0x2e0
[  311.603574][    C0]  ? kmem_cache_alloc+0x119/0x2e0
[  311.603598][    C0]  ? unwind_next_frame+0x4b8/0x2970
[  311.603626][    C0]  ? kmem_cache_alloc+0x11d/0x2e0
[  311.603650][    C0]  ? kmem_cache_alloc+0x11e/0x2e0
[  311.603673][    C0]  ? kmem_cache_alloc+0x11e/0x2e0
[  311.603694][    C0]  ? stack_trace_save+0xe0/0xe0
[  311.603713][    C0]  arch_stack_walk+0x144/0x190
[  311.603732][    C0]  ? kmem_cache_alloc+0x11e/0x2e0
[  311.603757][    C0]  stack_trace_save+0x9c/0xe0
[  311.603776][    C0]  ? stack_trace_snprint+0xf0/0xf0
[  311.603800][    C0]  kasan_set_track+0x4e/0x70
[  311.603816][    C0]  ? kasan_set_track+0x4e/0x70
[  311.603831][    C0]  ? __kasan_slab_alloc+0x6c/0x80
[  311.603860][    C0]  ? slab_post_alloc_hook+0x6e/0x4d0
[  311.603883][    C0]  ? kmem_cache_alloc+0x11e/0x2e0
[  311.603931][    C0]  __kasan_slab_alloc+0x6c/0x80
[  311.603956][    C0]  slab_post_alloc_hook+0x6e/0x4d0
[  311.603984][    C0]  kmem_cache_alloc+0x11e/0x2e0
[  311.604006][    C0]  ? __proc_create+0x370/0x8d0
[  311.604031][    C0]  __proc_create+0x370/0x8d0
[  311.604057][    C0]  ? proc_symlink+0x260/0x260
[  311.604080][    C0]  ? __lock_acquire+0x7c80/0x7c80
[  311.604096][    C0]  ? bpf_lsm_socket_post_create+0x9/0x10
[  311.604121][    C0]  proc_create_reg+0x8b/0x110
[  311.604146][    C0]  proc_create_net_data+0x99/0x1b0
[  311.604164][    C0]  ? _raw_spin_unlock+0x28/0x40
[  311.604190][    C0]  ? bpf_iter_fini_seq_net+0xc0/0xc0
[  311.604208][    C0]  ? inet_gro_complete+0x5c0/0x5c0
[  311.604229][    C0]  ping_v6_proc_init_net+0x59/0x70
[  311.604254][    C0]  ops_init+0x397/0x640
[  311.604274][    C0]  ? __raw_spin_lock_init+0x45/0x100
[  311.604299][    C0]  setup_net+0x3a5/0xa00
[  311.604318][    C0]  ? mutex_unlock+0x10/0x10
[  311.604339][    C0]  ? copy_net_ns+0x5e0/0x5e0
[  311.604361][    C0]  ? copy_net_ns+0x351/0x5e0
[  311.604379][    C0]  ? down_read_killable+0x1d0/0x340
[  311.604404][    C0]  copy_net_ns+0x36d/0x5e0
[  311.604427][    C0]  create_new_namespaces+0x3d3/0x6f0
[  311.604451][    C0]  ? copy_namespaces+0x5c/0x4a0
[  311.604469][    C0]  copy_namespaces+0x430/0x4a0
[  311.604489][    C0]  copy_process+0x1700/0x3d70
[  311.604514][    C0]  ? copy_process+0x945/0x3d70
[  311.604537][    C0]  ? __pidfd_prepare+0x140/0x140
[  311.604560][    C0]  kernel_clone+0x21b/0x840
[  311.604581][    C0]  ? create_io_thread+0x140/0x140
[  311.604597][    C0]  ? fd_install+0x60/0x4e0
[  311.604622][    C0]  ? __se_sys_perf_event_open+0x19b7/0x1c20
[  311.604644][    C0]  __x64_sys_clone+0x18c/0x1e0
[  311.604664][    C0]  ? __ia32_sys_vfork+0x100/0x100
[  311.604688][    C0]  ? lock_chain_count+0x20/0x20
[  311.604709][    C0]  ? lockdep_hardirqs_on+0x98/0x150
[  311.604734][    C0]  do_syscall_64+0x55/0xb0
[  311.604751][    C0]  ? clear_bhb_loop+0x40/0x90
[  311.604766][    C0]  ? clear_bhb_loop+0x40/0x90
[  311.604781][    C0]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[  311.604807][    C0] RIP: 0033:0x7f59721e7ab9
[  311.604826][    C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
[  311.604838][    C0] RSP: 002b:00007ffc26107018 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  311.604853][    C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f59721e7ab9
[  311.604864][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000e50c1600
[  311.604873][    C0] RBP: 0000000000032541 R08: 0000000000000000 R09: 0000000000000006
[  311.604882][    C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc2610702c
[  311.604892][    C0] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[  311.604911][    C0]  </TASK>
[  311.604918][    C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.994 msecs