Warning: Permanently added '10.128.0.9' (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 [ 57.282013][ T1100] [ 57.284394][ T1100] ============================================ [ 57.290546][ T1100] WARNING: possible recursive locking detected [ 57.296941][ T1100] 6.1.84-syzkaller #0 Not tainted [ 57.302039][ T1100] -------------------------------------------- [ 57.308171][ T1100] kworker/u4:4/1100 is trying to acquire lock: [ 57.314394][ T1100] ffff88807ee7b238 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x690 [ 57.323374][ T1100] [ 57.323374][ T1100] but task is already holding lock: [ 57.330731][ T1100] ffff88807ee7ca38 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x690 [ 57.339679][ T1100] [ 57.339679][ T1100] other info that might help us debug this: [ 57.347980][ T1100] Possible unsafe locking scenario: [ 57.347980][ T1100] [ 57.355498][ T1100] CPU0 [ 57.358776][ T1100] ---- [ 57.362060][ T1100] lock(&trie->lock); [ 57.366387][ T1100] lock(&trie->lock); [ 57.370444][ T1100] [ 57.370444][ T1100] *** DEADLOCK *** [ 57.370444][ T1100] [ 57.379013][ T1100] May be due to missing lock nesting notation [ 57.379013][ T1100] [ 57.387404][ T1100] 8 locks held by kworker/u4:4/1100: [ 57.392984][ T1100] #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 [ 57.404036][ T1100] #1: ffffc90005347d20 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 [ 57.418281][ T1100] #2: ffffffff8cfc7d70 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0xe/0x20 [ 57.428600][ T1100] #3: ffffffff8d1c7008 (jump_label_mutex){+.+.}-{3:3}, at: static_key_disable_cpuslocked+0x97/0x1b0 [ 57.439877][ T1100] #4: ffffffff8cfdcc68 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0xe/0x20 [ 57.451215][ T1100] #5: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x110/0x410 [ 57.461135][ T1100] #6: ffff88807ee7ca38 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x690 [ 57.470831][ T1100] #7: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x110/0x410 [ 57.480777][ T1100] [ 57.480777][ T1100] stack backtrace: [ 57.487065][ T1100] CPU: 1 PID: 1100 Comm: kworker/u4:4 Not tainted 6.1.84-syzkaller #0 [ 57.495413][ T1100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 57.505573][ T1100] Workqueue: events_unbound toggle_allocation_gate [ 57.512098][ T1100] Call Trace: [ 57.515555][ T1100] [ 57.518483][ T1100] dump_stack_lvl+0x1e3/0x2cb [ 57.523307][ T1100] ? nf_tcp_handle_invalid+0x642/0x642 [ 57.528981][ T1100] ? panic+0x75d/0x75d [ 57.533939][ T1100] validate_chain+0x4711/0x5950 [ 57.539229][ T1100] ? reacquire_held_locks+0x660/0x660 [ 57.544904][ T1100] ? validate_chain+0x112/0x5950 [ 57.550130][ T1100] ? reacquire_held_locks+0x660/0x660 [ 57.556601][ T1100] ? validate_chain+0x112/0x5950 [ 57.561662][ T1100] ? rcu_is_watching+0x11/0xb0 [ 57.566422][ T1100] ? load_balance+0x31f3/0x85f0 [ 57.571475][ T1100] ? mark_lock+0x9a/0x340 [ 57.575979][ T1100] __lock_acquire+0x125b/0x1f80 [ 57.581043][ T1100] lock_acquire+0x1f8/0x5a0 [ 57.585541][ T1100] ? trie_delete_elem+0x90/0x690 [ 57.590566][ T1100] ? read_lock_is_recursive+0x10/0x10 [ 57.596022][ T1100] ? __lock_acquire+0x125b/0x1f80 [ 57.601150][ T1100] _raw_spin_lock_irqsave+0xd1/0x120 [ 57.606424][ T1100] ? trie_delete_elem+0x90/0x690 [ 57.611712][ T1100] ? _raw_spin_lock+0x40/0x40 [ 57.616382][ T1100] ? read_lock_is_recursive+0x10/0x10 [ 57.621945][ T1100] trie_delete_elem+0x90/0x690 [ 57.626784][ T1100] ? __cant_sleep+0x270/0x270 [ 57.631498][ T1100] ? __lock_acquire+0x125b/0x1f80 [ 57.636625][ T1100] ? reacquire_held_locks+0x660/0x660 [ 57.642128][ T1100] bpf_prog_2c29ac5cdc6b1842+0x3a/0x3e [ 57.647704][ T1100] bpf_trace_run2+0x1fd/0x410 [ 57.652555][ T1100] ? bpf_trace_run2+0x110/0x410 [ 57.657417][ T1100] ? bpf_trace_run1+0x3d0/0x3d0 [ 57.662538][ T1100] ? __lock_acquire+0x125b/0x1f80 [ 57.667700][ T1100] ? __bpf_trace_lock+0x10/0x10 [ 57.672793][ T1100] __traceiter_contention_begin+0x74/0xa0 [ 57.678552][ T1100] trace_contention_begin+0x14f/0x1a0 [ 57.683923][ T1100] __pv_queued_spin_lock_slowpath+0x111/0xc50 [ 57.690346][ T1100] ? __pv_queued_spin_unlock_slowpath+0x2e0/0x2e0 [ 57.697480][ T1100] queued_spin_lock_slowpath+0x42/0x50 [ 57.702933][ T1100] do_raw_spin_lock+0x269/0x370 [ 57.707866][ T1100] ? __rwlock_init+0x140/0x140 [ 57.712620][ T1100] ? _raw_spin_lock_irqsave+0xac/0x120 [ 57.718071][ T1100] _raw_spin_lock_irqsave+0xdd/0x120 [ 57.723521][ T1100] ? _raw_spin_lock+0x40/0x40 [ 57.728201][ T1100] ? read_lock_is_recursive+0x10/0x10 [ 57.733830][ T1100] ? bpf_trace_run2+0x110/0x410 [ 57.738908][ T1100] trie_delete_elem+0x90/0x690 [ 57.744134][ T1100] ? __cant_sleep+0x270/0x270 [ 57.748834][ T1100] bpf_prog_2c29ac5cdc6b1842+0x3a/0x3e [ 57.754310][ T1100] bpf_trace_run2+0x1fd/0x410 [ 57.758999][ T1100] ? bpf_trace_run2+0x110/0x410 [ 57.763845][ T1100] ? bpf_trace_run1+0x3d0/0x3d0 [ 57.768831][ T1100] ? __might_sleep+0xb0/0xb0 [ 57.773445][ T1100] ? insn_decode+0x351/0x500 [ 57.778061][ T1100] ? __bpf_trace_lock+0x10/0x10 [ 57.783028][ T1100] __traceiter_contention_begin+0x74/0xa0 [ 57.788762][ T1100] trace_contention_begin+0x12f/0x170 [ 57.794134][ T1100] __mutex_lock+0x143/0xd80 [ 57.798658][ T1100] ? arch_jump_label_transform_apply+0xe/0x20 [ 57.804760][ T1100] ? mutex_lock_nested+0x10/0x10 [ 57.809745][ T1100] ? arch_jump_label_transform_queue+0x7d/0xd0 [ 57.815907][ T1100] arch_jump_label_transform_apply+0xe/0x20 [ 57.821907][ T1100] static_key_disable_cpuslocked+0xca/0x1b0 [ 57.827922][ T1100] static_key_disable+0x16/0x20 [ 57.832785][ T1100] toggle_allocation_gate+0x3e0/0x480 [ 57.838162][ T1100] ? show_object+0xa0/0xa0 [ 57.842617][ T1100] ? wake_bit_function+0x210/0x210 [ 57.847821][ T1100] ? print_irqtrace_events+0x210/0x210 [ 57.853275][ T1100] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 57.859356][ T1100] ? do_raw_spin_unlock+0x137/0x8a0 [ 57.864753][ T1100] ? process_one_work+0x7a9/0x11d0 [ 57.869917][ T1100] process_one_work+0x8a9/0x11d0 [ 57.874999][ T1100] ? worker_detach_from_pool+0x260/0x260 [ 57.880978][ T1100] ? _raw_spin_lock_irqsave+0x120/0x120 [ 57.886578][ T1100] ? kthread_data+0x4e/0xc0 [ 57.891181][ T1100] ? wq_worker_running+0x97/0x190 [ 57.896209][ T1100] worker_thread+0xa47/0x1200 [ 57.900991][ T1100] ? _raw_spin_unlock+0x40/0x40 [ 57.905963][ T1100] ? __sched_text_start+0x8/0x8 [ 57.910830][ T1100] ? _raw_spin_unlock+0x40/0x40 [ 57.915691][ T1100] kthread+0x28d/0x320 [ 57.919762][ T1100] ? worker_clr_flags+0x190/0x190 [ 57.924968][ T1100] ? kthread_blkcg+0xd0/0xd0 [ 57.930366][ T1100] ret_from_fork+0x1f/0x30 executing program executing program executing program executing program executing program executing program executing program executing program [ 57.934803][ T1100] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program