Warning: Permanently added '10.128.0.203' (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 [ 63.108856][ T18] [ 63.111398][ T18] ===================================================== [ 63.118352][ T18] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 63.125900][ T18] 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Not tainted [ 63.132602][ T18] ----------------------------------------------------- [ 63.139635][ T18] rcu_exp_gp_kthr/18 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire: [ 63.147543][ T18] ffff88802eee4218 (&htab->buckets[i].lock){+...}-{2:2}, at: sock_hash_delete_elem+0xb0/0x300 [ 63.157895][ T18] [ 63.157895][ T18] and this task is already holding: [ 63.165261][ T18] ffff8880b943e158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 63.174747][ T18] which would create a new lock dependency: [ 63.180616][ T18] (&rq->__lock){-.-.}-{2:2} -> (&htab->buckets[i].lock){+...}-{2:2} [ 63.188712][ T18] [ 63.188712][ T18] but this new dependency connects a HARDIRQ-irq-safe lock: [ 63.198230][ T18] (&rq->__lock){-.-.}-{2:2} [ 63.198250][ T18] [ 63.198250][ T18] ... which became HARDIRQ-irq-safe at: [ 63.210559][ T18] lock_acquire+0x1e4/0x530 [ 63.215145][ T18] _raw_spin_lock_nested+0x31/0x40 [ 63.220591][ T18] raw_spin_rq_lock_nested+0x2a/0x140 [ 63.226047][ T18] scheduler_tick+0xa1/0x6e0 [ 63.230749][ T18] update_process_times+0x202/0x230 [ 63.236034][ T18] tick_periodic+0x190/0x220 [ 63.240809][ T18] tick_handle_periodic+0x4a/0x160 [ 63.246077][ T18] timer_interrupt+0x5c/0x70 [ 63.250747][ T18] __handle_irq_event_percpu+0x28c/0xa30 [ 63.256555][ T18] handle_irq_event+0x89/0x1f0 [ 63.261688][ T18] handle_level_irq+0x3c5/0x6e0 [ 63.266625][ T18] __common_interrupt+0x13a/0x230 [ 63.271725][ T18] common_interrupt+0xa5/0xd0 [ 63.276474][ T18] asm_common_interrupt+0x26/0x40 [ 63.281763][ T18] _raw_spin_unlock_irqrestore+0xd8/0x140 [ 63.287570][ T18] __setup_irq+0x1277/0x1cf0 [ 63.292239][ T18] request_threaded_irq+0x2ab/0x380 [ 63.297598][ T18] setup_default_timer_irq+0x25/0x60 [ 63.303148][ T18] x86_late_time_init+0x66/0xc0 [ 63.308077][ T18] start_kernel+0x3f3/0x500 [ 63.312655][ T18] x86_64_start_reservations+0x2a/0x30 [ 63.318195][ T18] x86_64_start_kernel+0x99/0xa0 [ 63.323211][ T18] common_startup_64+0x13e/0x147 [ 63.328222][ T18] [ 63.328222][ T18] to a HARDIRQ-irq-unsafe lock: [ 63.335234][ T18] (&htab->buckets[i].lock){+...}-{2:2} [ 63.335254][ T18] [ 63.335254][ T18] ... which became HARDIRQ-irq-unsafe at: [ 63.348746][ T18] ... [ 63.348753][ T18] lock_acquire+0x1e4/0x530 [ 63.356122][ T18] _raw_spin_lock_bh+0x35/0x50 [ 63.360984][ T18] sock_hash_free+0x164/0x820 [ 63.365761][ T18] bpf_map_free_deferred+0xe6/0x110 [ 63.371043][ T18] process_scheduled_works+0xa00/0x1770 [ 63.376661][ T18] worker_thread+0x86d/0xd70 [ 63.381334][ T18] kthread+0x2f0/0x390 [ 63.385492][ T18] ret_from_fork+0x4b/0x80 [ 63.389999][ T18] ret_from_fork_asm+0x1a/0x30 [ 63.394840][ T18] [ 63.394840][ T18] other info that might help us debug this: [ 63.394840][ T18] [ 63.405323][ T18] Possible interrupt unsafe locking scenario: [ 63.405323][ T18] [ 63.413623][ T18] CPU0 CPU1 [ 63.419059][ T18] ---- ---- [ 63.424402][ T18] lock(&htab->buckets[i].lock); [ 63.429406][ T18] local_irq_disable(); [ 63.436139][ T18] lock(&rq->__lock); [ 63.442714][ T18] lock(&htab->buckets[i].lock); [ 63.450757][ T18] [ 63.454189][ T18] lock(&rq->__lock); [ 63.458408][ T18] [ 63.458408][ T18] *** DEADLOCK *** [ 63.458408][ T18] [ 63.466618][ T18] 3 locks held by rcu_exp_gp_kthr/18: [ 63.471966][ T18] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: newidle_balance+0x2a8/0x1080 [ 63.481515][ T18] #1: ffff8880b943e158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 63.491403][ T18] #2: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 [ 63.500859][ T18] [ 63.500859][ T18] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 63.511263][ T18] -> (&rq->__lock){-.-.}-{2:2} { [ 63.516295][ T18] IN-HARDIRQ-W at: [ 63.520258][ T18] lock_acquire+0x1e4/0x530 [ 63.526590][ T18] _raw_spin_lock_nested+0x31/0x40 [ 63.533346][ T18] raw_spin_rq_lock_nested+0x2a/0x140 [ 63.540377][ T18] scheduler_tick+0xa1/0x6e0 [ 63.546602][ T18] update_process_times+0x202/0x230 [ 63.553430][ T18] tick_periodic+0x190/0x220 [ 63.559662][ T18] tick_handle_periodic+0x4a/0x160 [ 63.566488][ T18] timer_interrupt+0x5c/0x70 [ 63.572730][ T18] __handle_irq_event_percpu+0x28c/0xa30 [ 63.580014][ T18] handle_irq_event+0x89/0x1f0 [ 63.586421][ T18] handle_level_irq+0x3c5/0x6e0 [ 63.592915][ T18] __common_interrupt+0x13a/0x230 [ 63.599573][ T18] common_interrupt+0xa5/0xd0 [ 63.605883][ T18] asm_common_interrupt+0x26/0x40 [ 63.612536][ T18] _raw_spin_unlock_irqrestore+0xd8/0x140 [ 63.619882][ T18] __setup_irq+0x1277/0x1cf0 [ 63.626126][ T18] request_threaded_irq+0x2ab/0x380 [ 63.632971][ T18] setup_default_timer_irq+0x25/0x60 [ 63.639899][ T18] x86_late_time_init+0x66/0xc0 [ 63.646383][ T18] start_kernel+0x3f3/0x500 [ 63.652534][ T18] x86_64_start_reservations+0x2a/0x30 [ 63.659627][ T18] x86_64_start_kernel+0x99/0xa0 [ 63.666195][ T18] common_startup_64+0x13e/0x147 [ 63.672762][ T18] IN-SOFTIRQ-W at: [ 63.676732][ T18] lock_acquire+0x1e4/0x530 [ 63.682881][ T18] _raw_spin_lock_nested+0x31/0x40 [ 63.689739][ T18] raw_spin_rq_lock_nested+0x2a/0x140 [ 63.696760][ T18] try_to_wake_up+0x7d3/0x1470 [ 63.703305][ T18] call_timer_fn+0x17e/0x600 [ 63.709537][ T18] __run_timer_base+0x66a/0x8e0 [ 63.716127][ T18] run_timer_softirq+0xb7/0x170 [ 63.722621][ T18] __do_softirq+0x2bc/0x943 [ 63.728985][ T18] __irq_exit_rcu+0xf2/0x1c0 [ 63.735224][ T18] irq_exit_rcu+0x9/0x30 [ 63.741115][ T18] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 63.748409][ T18] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 63.756059][ T18] default_idle+0x13/0x20 [ 63.762199][ T18] default_idle_call+0x74/0xb0 [ 63.768600][ T18] do_idle+0x22f/0x5d0 [ 63.774317][ T18] cpu_startup_entry+0x42/0x60 [ 63.780725][ T18] rest_init+0x2e0/0x300 [ 63.786781][ T18] arch_call_rest_init+0xe/0x10 [ 63.793520][ T18] start_kernel+0x47a/0x500 [ 63.799656][ T18] x86_64_start_reservations+0x2a/0x30 [ 63.807024][ T18] x86_64_start_kernel+0x99/0xa0 [ 63.813868][ T18] common_startup_64+0x13e/0x147 [ 63.820452][ T18] INITIAL USE at: [ 63.824372][ T18] lock_acquire+0x1e4/0x530 [ 63.830449][ T18] _raw_spin_lock_nested+0x31/0x40 [ 63.837123][ T18] raw_spin_rq_lock_nested+0x2a/0x140 [ 63.844062][ T18] rq_attach_root+0xee/0x540 [ 63.850216][ T18] sched_init+0x64e/0xc30 [ 63.856099][ T18] start_kernel+0x1ab/0x500 [ 63.862303][ T18] x86_64_start_reservations+0x2a/0x30 [ 63.869341][ T18] x86_64_start_kernel+0x99/0xa0 [ 63.876042][ T18] common_startup_64+0x13e/0x147 [ 63.882558][ T18] } [ 63.885056][ T18] ... key at: [] sched_init.__key+0x0/0x20 [ 63.893030][ T18] [ 63.893030][ T18] the dependencies between the lock to be acquired [ 63.893038][ T18] and HARDIRQ-irq-unsafe lock: [ 63.906742][ T18] -> (&htab->buckets[i].lock){+...}-{2:2} { [ 63.912810][ T18] HARDIRQ-ON-W at: [ 63.916788][ T18] lock_acquire+0x1e4/0x530 [ 63.923124][ T18] _raw_spin_lock_bh+0x35/0x50 [ 63.929541][ T18] sock_hash_free+0x164/0x820 [ 63.936131][ T18] bpf_map_free_deferred+0xe6/0x110 [ 63.943167][ T18] process_scheduled_works+0xa00/0x1770 [ 63.950353][ T18] worker_thread+0x86d/0xd70 [ 63.956577][ T18] kthread+0x2f0/0x390 [ 63.962277][ T18] ret_from_fork+0x4b/0x80 [ 63.968324][ T18] ret_from_fork_asm+0x1a/0x30 [ 63.974728][ T18] INITIAL USE at: [ 63.978618][ T18] lock_acquire+0x1e4/0x530 [ 63.984679][ T18] _raw_spin_lock_bh+0x35/0x50 [ 63.991017][ T18] sock_hash_free+0x164/0x820 [ 63.997261][ T18] bpf_map_free_deferred+0xe6/0x110 [ 64.004200][ T18] process_scheduled_works+0xa00/0x1770 [ 64.011310][ T18] worker_thread+0x86d/0xd70 [ 64.017466][ T18] kthread+0x2f0/0x390 [ 64.023269][ T18] ret_from_fork+0x4b/0x80 [ 64.029241][ T18] ret_from_fork_asm+0x1a/0x30 [ 64.035576][ T18] } [ 64.038058][ T18] ... key at: [] sock_hash_alloc.__key+0x0/0x20 [ 64.046811][ T18] ... acquired at: [ 64.050607][ T18] lock_acquire+0x1e4/0x530 [ 64.055272][ T18] _raw_spin_lock_bh+0x35/0x50 [ 64.060209][ T18] sock_hash_delete_elem+0xb0/0x300 [ 64.065595][ T18] bpf_prog_2c29ac5cdc6b1842+0x42/0x46 [ 64.071232][ T18] bpf_trace_run2+0x204/0x420 [ 64.076073][ T18] set_task_cpu+0x53d/0x5b0 [ 64.080727][ T18] load_balance+0x60f5/0x8840 [ 64.085581][ T18] newidle_balance+0x6be/0x1080 [ 64.090585][ T18] pick_next_task_fair+0x27a/0xde0 [ 64.095934][ T18] __pick_next_task+0xb0/0x2c0 [ 64.100956][ T18] __schedule+0x726/0x4a20 [ 64.105525][ T18] schedule+0x14b/0x320 [ 64.109834][ T18] schedule_timeout+0x1be/0x310 [ 64.114896][ T18] rcu_exp_sel_wait_wake+0x77e/0x1df0 [ 64.120562][ T18] kthread_worker_fn+0x4bf/0xab0 [ 64.125651][ T18] kthread+0x2f0/0x390 [ 64.129889][ T18] ret_from_fork+0x4b/0x80 [ 64.134502][ T18] ret_from_fork_asm+0x1a/0x30 [ 64.139482][ T18] [ 64.141804][ T18] [ 64.141804][ T18] stack backtrace: [ 64.148215][ T18] CPU: 1 PID: 18 Comm: rcu_exp_gp_kthr Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 64.158104][ T18] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.168321][ T18] Call Trace: [ 64.171595][ T18] [ 64.174536][ T18] dump_stack_lvl+0x1e7/0x2e0 [ 64.179215][ T18] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.184495][ T18] ? __pfx__printk+0x10/0x10 [ 64.189071][ T18] ? print_shortest_lock_dependencies+0xf2/0x160 [ 64.195499][ T18] validate_chain+0x4dc7/0x58e0 [ 64.200341][ T18] ? __pfx_validate_chain+0x10/0x10 [ 64.205565][ T18] ? validate_chain+0x11b/0x58e0 [ 64.210571][ T18] ? __pfx_validate_chain+0x10/0x10 [ 64.215863][ T18] ? __pfx_validate_chain+0x10/0x10 [ 64.221070][ T18] ? register_lock_class+0x102/0x980 [ 64.226336][ T18] ? __pfx_register_lock_class+0x10/0x10 [ 64.231950][ T18] ? __pfx_validate_chain+0x10/0x10 [ 64.237621][ T18] ? mark_lock+0x9a/0x350 [ 64.242151][ T18] __lock_acquire+0x1346/0x1fd0 [ 64.247192][ T18] lock_acquire+0x1e4/0x530 [ 64.251816][ T18] ? sock_hash_delete_elem+0xb0/0x300 [ 64.257290][ T18] ? __pfx_lockdep_softirqs_off+0x10/0x10 [ 64.263117][ T18] ? __pfx_lock_acquire+0x10/0x10 [ 64.268149][ T18] ? sock_hash_delete_elem+0xb0/0x300 [ 64.273536][ T18] ? __pfx___local_bh_disable_ip+0x10/0x10 [ 64.279795][ T18] ? __pfx_lock_acquire+0x10/0x10 [ 64.284917][ T18] ? cpufreq_update_util+0x94/0x250 [ 64.290142][ T18] ? sock_hash_delete_elem+0xb0/0x300 [ 64.295679][ T18] _raw_spin_lock_bh+0x35/0x50 [ 64.300426][ T18] ? sock_hash_delete_elem+0xb0/0x300 [ 64.305787][ T18] sock_hash_delete_elem+0xb0/0x300 [ 64.311221][ T18] bpf_prog_2c29ac5cdc6b1842+0x42/0x46 [ 64.316791][ T18] bpf_trace_run2+0x204/0x420 [ 64.321819][ T18] ? bpf_trace_run2+0x114/0x420 [ 64.326695][ T18] ? __pfx_bpf_trace_run2+0x10/0x10 [ 64.331895][ T18] set_task_cpu+0x53d/0x5b0 [ 64.336395][ T18] load_balance+0x60f5/0x8840 [ 64.341073][ T18] ? __pfx_load_balance+0x10/0x10 [ 64.346352][ T18] ? rcu_read_lock_sched_held+0x8d/0x130 [ 64.352088][ T18] ? __lock_acquire+0x1346/0x1fd0 [ 64.357136][ T18] ? __pfx_lock_acquire+0x10/0x10 [ 64.362182][ T18] ? __pfx_sched_clock_cpu+0x10/0x10 [ 64.367465][ T18] newidle_balance+0x6be/0x1080 [ 64.372417][ T18] ? newidle_balance+0x2a8/0x1080 [ 64.377464][ T18] ? __pfx_newidle_balance+0x10/0x10 [ 64.382859][ T18] pick_next_task_fair+0x27a/0xde0 [ 64.387989][ T18] __pick_next_task+0xb0/0x2c0 [ 64.392864][ T18] __schedule+0x726/0x4a20 [ 64.397304][ T18] ? __pfx___schedule+0x10/0x10 [ 64.402159][ T18] ? schedule+0x90/0x320 [ 64.406406][ T18] ? __pfx_lock_release+0x10/0x10 [ 64.411410][ T18] ? __asan_memset+0x23/0x50 [ 64.416300][ T18] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 64.422103][ T18] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.428092][ T18] ? schedule+0x90/0x320 [ 64.432762][ T18] schedule+0x14b/0x320 [ 64.437170][ T18] schedule_timeout+0x1be/0x310 [ 64.442121][ T18] ? __pfx_schedule_timeout+0x10/0x10 [ 64.447498][ T18] ? __pfx_process_timeout+0x10/0x10 [ 64.452796][ T18] rcu_exp_sel_wait_wake+0x77e/0x1df0 [ 64.458275][ T18] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.464268][ T18] ? __pfx_rcu_exp_sel_wait_wake+0x10/0x10 [ 64.470069][ T18] ? _raw_spin_lock_irq+0xdf/0x120 [ 64.475291][ T18] kthread_worker_fn+0x4bf/0xab0 [ 64.480214][ T18] ? kthread_worker_fn+0xdc/0xab0 [ 64.485399][ T18] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 64.490927][ T18] ? __pfx_kthread_worker_fn+0x10/0x10 [ 64.496364][ T18] kthread+0x2f0/0x390 [ 64.500504][ T18] ? __pfx_kthread_worker_fn+0x10/0x10 [ 64.505957][ T18] ? __pfx_kthread+0x10/0x10 [ 64.510552][ T18] ret_from_fork+0x4b/0x80 [ 64.514957][ T18] ? __pfx_kthread+0x10/0x10 [ 64.519708][ T18] ret_from_fork_asm+0x1a/0x30 [ 64.524464][ T18] [ 64.527521][ C1] ------------[ cut here ]------------ [ 64.532956][ C1] WARNING: CPU: 1 PID: 18 at kernel/sched/core.c:3889 sched_ttwu_pending+0x349/0x740 [ 64.542561][ C1] Modules linked in: [ 64.546441][ C1] CPU: 1 PID: 18 Comm: rcu_exp_gp_kthr Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 64.556672][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 64.566887][ C1] RIP: 0010:sched_ttwu_pending+0x349/0x740 [ 64.573207][ C1] Code: 83 e2 20 48 89 df 4c 89 ee 48 8d 8c 24 a0 00 00 00 e8 1b 04 00 00 4d 8d 6f c8 49 83 fd c8 0f 85 2d ff ff ff e9 51 01 00 00 90 <0f> 0b 90 0f b6 04 13 84 c0 0f 85 01 01 00 00 41 83 3e 00 74 5e f3 [ 64.594274][ C1] RSP: 0018:ffffc90000a08e40 EFLAGS: 00010002 [ 64.600408][ C1] RAX: 0000000000000000 RBX: 1ffff11002e583c6 RCX: 1ffff110172a7d93 [ 64.608707][ C1] RDX: dffffc0000000000 RSI: ffffffff8bfec640 RDI: ffffffff8bfec600 [ 64.616669][ C1] RBP: ffffc90000a08f58 R08: ffffffff8f86ae6f R09: 1ffffffff1f0d5cd [ 64.624733][ C1] R10: dffffc0000000000 R11: fffffbfff1f0d5ce R12: ffff8880172c1e38 [ 64.632744][ C1] R13: ffff8880172c1e00 R14: ffff8880172c1e34 R15: 0000000000000000 [ 64.640704][ C1] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 64.649987][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.656666][ C1] CR2: 00007fdcbe7d10d0 CR3: 000000000df32000 CR4: 00000000003506f0 [ 64.664745][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.672827][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.680801][ C1] Call Trace: [ 64.684168][ C1] [ 64.687033][ C1] ? __warn+0x163/0x4b0 [ 64.691210][ C1] ? sched_ttwu_pending+0x349/0x740 [ 64.696402][ C1] ? report_bug+0x2b3/0x500 [ 64.700908][ C1] ? sched_ttwu_pending+0x349/0x740 [ 64.706104][ C1] ? handle_bug+0x3e/0x70 [ 64.710460][ C1] ? exc_invalid_op+0x1a/0x50 [ 64.715214][ C1] ? asm_exc_invalid_op+0x1a/0x20 [ 64.720321][ C1] ? sched_ttwu_pending+0x349/0x740 [ 64.725606][ C1] ? __pfx_sched_ttwu_pending+0x10/0x10 [ 64.731142][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 64.736328][ C1] ? sched_clock+0x4a/0x70 [ 64.740735][ C1] ? sched_clock_cpu+0x76/0x490 [ 64.745576][ C1] __flush_smp_call_function_queue+0x109f/0x15b0 [ 64.751984][ C1] __sysvec_call_function_single+0xa8/0x3e0 [ 64.757861][ C1] sysvec_call_function_single+0x9e/0xc0 [ 64.763478][ C1] [ 64.766391][ C1] [ 64.770041][ C1] asm_sysvec_call_function_single+0x1a/0x20 [ 64.776155][ C1] RIP: 0010:__local_bh_enable_ip+0x170/0x200 [ 64.782151][ C1] Code: 8b e8 94 90 16 0a 65 66 8b 05 54 5d aa 7e 66 85 c0 75 5d bf 01 00 00 00 e8 cd 7a 0b 00 e8 a8 ae 42 00 fb 65 8b 05 18 5d aa 7e <85> c0 75 05 e8 b7 19 a7 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c [ 64.802615][ C1] RSP: 0018:ffffc90000176dc0 EFLAGS: 00000282 [ 64.808866][ C1] RAX: 0000000080000003 RBX: 1ffff9200002edbc RCX: ffffffff819c1f2c [ 64.817027][ C1] RDX: dffffc0000000000 RSI: ffffffff8bfec640 RDI: ffffffff81597168 [ 64.825135][ C1] RBP: ffffc90000176e80 R08: ffffffff8f86ae6f R09: 1ffffffff1f0d5cd [ 64.833201][ C1] R10: dffffc0000000000 R11: fffffbfff1f0d5ce R12: dffffc0000000000 [ 64.841182][ C1] R13: 1ffff9200002edc0 R14: ffffc90000176e00 R15: 0000000000000201 [ 64.849251][ C1] ? trace_irq_enable+0x2c/0x100 [ 64.854198][ C1] ? __local_bh_enable_ip+0x168/0x200 [ 64.859591][ C1] ? sock_hash_delete_elem+0x1a6/0x300 [ 64.865325][ C1] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 64.871254][ C1] ? sock_hash_delete_elem+0x1a6/0x300 [ 64.876847][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 64.882121][ C1] ? sock_hash_delete_elem+0xb0/0x300 [ 64.887713][ C1] sock_hash_delete_elem+0x1a6/0x300 [ 64.893110][ C1] bpf_prog_2c29ac5cdc6b1842+0x42/0x46 [ 64.898639][ C1] bpf_trace_run2+0x204/0x420 [ 64.903331][ C1] ? bpf_trace_run2+0x114/0x420 [ 64.908253][ C1] ? __pfx_bpf_trace_run2+0x10/0x10 [ 64.913616][ C1] set_task_cpu+0x53d/0x5b0 [ 64.918276][ C1] load_balance+0x60f5/0x8840 [ 64.923060][ C1] ? __pfx_load_balance+0x10/0x10 [ 64.928254][ C1] ? rcu_read_lock_sched_held+0x8d/0x130 [ 64.934472][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 64.939843][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 64.944943][ C1] ? __pfx_sched_clock_cpu+0x10/0x10 [ 64.950258][ C1] newidle_balance+0x6be/0x1080 [ 64.955108][ C1] ? newidle_balance+0x2a8/0x1080 [ 64.960233][ C1] ? __pfx_newidle_balance+0x10/0x10 [ 64.965530][ C1] pick_next_task_fair+0x27a/0xde0 [ 64.970646][ C1] __pick_next_task+0xb0/0x2c0 [ 64.975746][ C1] __schedule+0x726/0x4a20 [ 64.980818][ C1] ? __pfx___schedule+0x10/0x10 [ 64.985991][ C1] ? schedule+0x90/0x320 [ 64.991131][ C1] ? __pfx_lock_release+0x10/0x10 [ 64.996429][ C1] ? __asan_memset+0x23/0x50 [ 65.001213][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 65.007295][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.013558][ C1] ? schedule+0x90/0x320 [ 65.017892][ C1] schedule+0x14b/0x320 [ 65.022060][ C1] schedule_timeout+0x1be/0x310 [ 65.027078][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 65.032762][ C1] ? __pfx_process_timeout+0x10/0x10 [ 65.038164][ C1] rcu_exp_sel_wait_wake+0x77e/0x1df0 [ 65.043580][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.049660][ C1] ? __pfx_rcu_exp_sel_wait_wake+0x10/0x10 [ 65.056032][ C1] ? _raw_spin_lock_irq+0xdf/0x120 [ 65.061339][ C1] kthread_worker_fn+0x4bf/0xab0 [ 65.066451][ C1] ? kthread_worker_fn+0xdc/0xab0 [ 65.071584][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 65.077104][ C1] ? __pfx_kthread_worker_fn+0x10/0x10 [ 65.082697][ C1] kthread+0x2f0/0x390 [ 65.086939][ C1] ? __pfx_kthread_worker_fn+0x10/0x10 [ 65.092387][ C1] ? __pfx_kthread+0x10/0x10 [ 65.096997][ C1] ret_from_fork+0x4b/0x80 [ 65.101565][ C1] ? __pfx_kthread+0x10/0x10 [ 65.106688][ C1] ret_from_fork_asm+0x1a/0x30 [ 65.111664][ C1] [ 65.114691][ C1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 65.121999][ C1] CPU: 1 PID: 18 Comm: rcu_exp_gp_kthr Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 65.132760][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 65.143267][ C1] Call Trace: [ 65.146630][ C1] [ 65.149575][ C1] dump_stack_lvl+0x1e7/0x2e0 [ 65.154719][ C1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 65.160130][ C1] ? __pfx__printk+0x10/0x10 [ 65.164897][ C1] ? vscnprintf+0x5d/0x90 [ 65.169300][ C1] panic+0x349/0x860 [ 65.173185][ C1] ? __warn+0x172/0x4b0 [ 65.177671][ C1] ? __pfx_panic+0x10/0x10 [ 65.182203][ C1] ? ret_from_fork_asm+0x1a/0x30 [ 65.187230][ C1] __warn+0x31e/0x4b0 [ 65.191229][ C1] ? sched_ttwu_pending+0x349/0x740 [ 65.196535][ C1] report_bug+0x2b3/0x500 [ 65.201132][ C1] ? sched_ttwu_pending+0x349/0x740 [ 65.206412][ C1] handle_bug+0x3e/0x70 [ 65.210643][ C1] exc_invalid_op+0x1a/0x50 [ 65.215155][ C1] asm_exc_invalid_op+0x1a/0x20 [ 65.220001][ C1] RIP: 0010:sched_ttwu_pending+0x349/0x740 [ 65.225878][ C1] Code: 83 e2 20 48 89 df 4c 89 ee 48 8d 8c 24 a0 00 00 00 e8 1b 04 00 00 4d 8d 6f c8 49 83 fd c8 0f 85 2d ff ff ff e9 51 01 00 00 90 <0f> 0b 90 0f b6 04 13 84 c0 0f 85 01 01 00 00 41 83 3e 00 74 5e f3 [ 65.245834][ C1] RSP: 0018:ffffc90000a08e40 EFLAGS: 00010002 [ 65.252066][ C1] RAX: 0000000000000000 RBX: 1ffff11002e583c6 RCX: 1ffff110172a7d93 [ 65.260469][ C1] RDX: dffffc0000000000 RSI: ffffffff8bfec640 RDI: ffffffff8bfec600 [ 65.268642][ C1] RBP: ffffc90000a08f58 R08: ffffffff8f86ae6f R09: 1ffffffff1f0d5cd [ 65.277129][ C1] R10: dffffc0000000000 R11: fffffbfff1f0d5ce R12: ffff8880172c1e38 [ 65.285634][ C1] R13: ffff8880172c1e00 R14: ffff8880172c1e34 R15: 0000000000000000 [ 65.294578][ C1] ? __pfx_sched_ttwu_pending+0x10/0x10 [ 65.300164][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 65.305442][ C1] ? sched_clock+0x4a/0x70 [ 65.309870][ C1] ? sched_clock_cpu+0x76/0x490 [ 65.314740][ C1] __flush_smp_call_function_queue+0x109f/0x15b0 [ 65.321241][ C1] __sysvec_call_function_single+0xa8/0x3e0 [ 65.327421][ C1] sysvec_call_function_single+0x9e/0xc0 [ 65.333157][ C1] [ 65.336095][ C1] [ 65.339036][ C1] asm_sysvec_call_function_single+0x1a/0x20 [ 65.345121][ C1] RIP: 0010:__local_bh_enable_ip+0x170/0x200 [ 65.351619][ C1] Code: 8b e8 94 90 16 0a 65 66 8b 05 54 5d aa 7e 66 85 c0 75 5d bf 01 00 00 00 e8 cd 7a 0b 00 e8 a8 ae 42 00 fb 65 8b 05 18 5d aa 7e <85> c0 75 05 e8 b7 19 a7 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c [ 65.371408][ C1] RSP: 0018:ffffc90000176dc0 EFLAGS: 00000282 [ 65.377571][ C1] RAX: 0000000080000003 RBX: 1ffff9200002edbc RCX: ffffffff819c1f2c [ 65.385889][ C1] RDX: dffffc0000000000 RSI: ffffffff8bfec640 RDI: ffffffff81597168 [ 65.393860][ C1] RBP: ffffc90000176e80 R08: ffffffff8f86ae6f R09: 1ffffffff1f0d5cd [ 65.404369][ C1] R10: dffffc0000000000 R11: fffffbfff1f0d5ce R12: dffffc0000000000 [ 65.414167][ C1] R13: 1ffff9200002edc0 R14: ffffc90000176e00 R15: 0000000000000201 [ 65.422257][ C1] ? trace_irq_enable+0x2c/0x100 [ 65.427186][ C1] ? __local_bh_enable_ip+0x168/0x200 [ 65.432723][ C1] ? sock_hash_delete_elem+0x1a6/0x300 [ 65.438190][ C1] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 65.444123][ C1] ? sock_hash_delete_elem+0x1a6/0x300 [ 65.449669][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 65.454863][ C1] ? sock_hash_delete_elem+0xb0/0x300 [ 65.460222][ C1] sock_hash_delete_elem+0x1a6/0x300 [ 65.465564][ C1] bpf_prog_2c29ac5cdc6b1842+0x42/0x46 [ 65.471040][ C1] bpf_trace_run2+0x204/0x420 [ 65.475921][ C1] ? bpf_trace_run2+0x114/0x420 [ 65.481334][ C1] ? __pfx_bpf_trace_run2+0x10/0x10 [ 65.487242][ C1] set_task_cpu+0x53d/0x5b0 [ 65.492057][ C1] load_balance+0x60f5/0x8840 [ 65.496834][ C1] ? __pfx_load_balance+0x10/0x10 [ 65.501845][ C1] ? rcu_read_lock_sched_held+0x8d/0x130 [ 65.507856][ C1] ? __lock_acquire+0x1346/0x1fd0 [ 65.512912][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 65.518008][ C1] ? __pfx_sched_clock_cpu+0x10/0x10 [ 65.523639][ C1] newidle_balance+0x6be/0x1080 [ 65.528565][ C1] ? newidle_balance+0x2a8/0x1080 [ 65.533849][ C1] ? __pfx_newidle_balance+0x10/0x10 [ 65.539414][ C1] pick_next_task_fair+0x27a/0xde0 [ 65.544770][ C1] __pick_next_task+0xb0/0x2c0 [ 65.549575][ C1] __schedule+0x726/0x4a20 [ 65.554072][ C1] ? __pfx___schedule+0x10/0x10 [ 65.558928][ C1] ? schedule+0x90/0x320 [ 65.563176][ C1] ? __pfx_lock_release+0x10/0x10 [ 65.568372][ C1] ? __asan_memset+0x23/0x50 [ 65.572976][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 65.578771][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.584820][ C1] ? schedule+0x90/0x320 [ 65.589084][ C1] schedule+0x14b/0x320 [ 65.593254][ C1] schedule_timeout+0x1be/0x310 [ 65.598370][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 65.604002][ C1] ? __pfx_process_timeout+0x10/0x10 [ 65.609563][ C1] rcu_exp_sel_wait_wake+0x77e/0x1df0 [ 65.615039][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.621278][ C1] ? __pfx_rcu_exp_sel_wait_wake+0x10/0x10 [ 65.627186][ C1] ? _raw_spin_lock_irq+0xdf/0x120 [ 65.632482][ C1] kthread_worker_fn+0x4bf/0xab0 [ 65.637526][ C1] ? kthread_worker_fn+0xdc/0xab0 [ 65.642571][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 65.647863][ C1] ? __pfx_kthread_worker_fn+0x10/0x10 [ 65.653330][ C1] kthread+0x2f0/0x390 [ 65.657522][ C1] ? __pfx_kthread_worker_fn+0x10/0x10 [ 65.663012][ C1] ? __pfx_kthread+0x10/0x10 [ 65.667687][ C1] ret_from_fork+0x4b/0x80 [ 65.672093][ C1] ? __pfx_kthread+0x10/0x10 [ 65.676718][ C1] ret_from_fork_asm+0x1a/0x30 [ 65.681887][ C1] [ 66.759552][ C1] Shutting down cpus with NMI [ 66.764465][ C1] Kernel Offset: disabled [ 66.768817][ C1] Rebooting in 86400 seconds..