Warning: Permanently added '10.128.1.193' (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 [ 221.508584][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 221.515479][ C1] rcu: 1-....: (10500 ticks this GP) idle=36dc/1/0x4000000000000000 softirq=10729/839803 fqs=5241 [ 221.526882][ C1] rcu: hardirqs softirqs csw/system [ 221.533324][ C1] rcu: number: 424106 417151 0 [ 221.539758][ C1] rcu: cputime: 949 51118 408 ==> 52490(ms) [ 221.547603][ C1] rcu: (t=10500 jiffies g=9701 q=235 ncpus=2) [ 221.553913][ C1] CPU: 1 PID: 5806 Comm: syz-executor286 Not tainted 6.6.101-syzkaller #0 [ 221.562450][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 221.572567][ C1] RIP: 0010:lock_acquire+0x1f2/0x410 [ 221.577919][ C1] Code: 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 0f 85 f5 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00 [ 221.597559][ C1] RSP: 0018:ffffc900001f0900 EFLAGS: 00000206 [ 221.603692][ C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: e3465ac3e8c21a00 [ 221.611746][ C1] RDX: 0000000000000000 RSI: ffffffff8aaacbc0 RDI: ffffffff8afc6780 [ 221.619768][ C1] RBP: ffffc900001f0a08 R08: dffffc0000000000 R09: 1ffffffff21b46a4 [ 221.628033][ C1] R10: dffffc0000000000 R11: fffffbfff21b46a5 R12: 1ffff9200003e12c [ 221.636062][ C1] R13: ffffffff8cd2fba0 R14: 0000000000000246 R15: dffffc0000000000 [ 221.644071][ C1] FS: 00005555834e3380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 221.653057][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 221.659671][ C1] CR2: 00005555834e3ca8 CR3: 000000007894b000 CR4: 00000000003506e0 [ 221.667676][ C1] Call Trace: [ 221.670982][ C1] [ 221.673877][ C1] ? bpf_trace_run1+0xd6/0x3b0 [ 221.678680][ C1] ? read_lock_is_recursive+0x20/0x20 [ 221.684078][ C1] ? trace_call_bpf+0xc3/0x690 [ 221.688881][ C1] ? trace_call_bpf+0x5ba/0x690 [ 221.693850][ C1] bpf_trace_run1+0xf7/0x3b0 [ 221.698463][ C1] ? bpf_trace_run1+0xd6/0x3b0 [ 221.703255][ C1] ? bpf_trace_run1+0xd6/0x3b0 [ 221.708065][ C1] ? bpf_put_raw_tracepoint+0x60/0x60 [ 221.713491][ C1] ? lock_chain_count+0x20/0x20 [ 221.718395][ C1] ? __bpf_trace_rcu_utilization+0x95/0xe0 [ 221.724226][ C1] ? perf_trace_rcu_stall_warning+0x2d0/0x2d0 [ 221.730322][ C1] ? perf_trace_rcu_stall_warning+0x2d0/0x2d0 [ 221.736426][ C1] __bpf_trace_rcu_utilization+0xa2/0xe0 [ 221.742106][ C1] ? perf_trace_rcu_stall_warning+0x2d0/0x2d0 [ 221.748208][ C1] ? rcu_leak_callback+0x10/0x10 [ 221.753195][ C1] __traceiter_rcu_utilization+0x70/0xa0 [ 221.758862][ C1] trace_rcu_utilization+0x179/0x1a0 [ 221.764183][ C1] rcu_core+0x1341/0x1720 [ 221.768572][ C1] ? try_to_wake_up+0x2d2/0x10b0 [ 221.773549][ C1] ? __lock_acquire+0x7c80/0x7c80 [ 221.778688][ C1] ? __rwlock_init+0x150/0x150 [ 221.783501][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 221.788733][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 221.793971][ C1] ? sched_clock+0x3f/0x60 [ 221.798413][ C1] ? sched_clock_cpu+0x75/0x430 [ 221.803287][ C1] ? _raw_spin_unlock+0x40/0x40 [ 221.808182][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 221.814205][ C1] ? lock_chain_count+0x20/0x20 [ 221.819077][ C1] ? try_to_wake_up+0x6f8/0x10b0 [ 221.824088][ C1] handle_softirqs+0x280/0x820 [ 221.828924][ C1] ? __irq_exit_rcu+0xc7/0x190 [ 221.833731][ C1] ? do_softirq+0x180/0x180 [ 221.838273][ C1] ? irq_work_single+0x199/0x230 [ 221.843250][ C1] ? irqtime_account_irq+0xb6/0x1c0 [ 221.848506][ C1] __irq_exit_rcu+0xc7/0x190 [ 221.853127][ C1] ? irq_exit_rcu+0x20/0x20 [ 221.857668][ C1] ? rcu_is_watching+0x15/0xb0 [ 221.862561][ C1] irq_exit_rcu+0x9/0x20 [ 221.866823][ C1] sysvec_irq_work+0xa1/0xc0 [ 221.871442][ C1] [ 221.874394][ C1] [ 221.877352][ C1] asm_sysvec_irq_work+0x1a/0x20 [ 221.882312][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0xa9/0x110 [ 221.888849][ C1] Code: 74 05 e8 fa 37 15 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 22 b3 e4 f6 65 8b 05 23 f9 8c 75 85 c0 74 3c 48 c7 04 24 0e 36 [ 221.908498][ C1] RSP: 0018:ffffc9000475fb40 EFLAGS: 00000206 [ 221.914617][ C1] RAX: e3465ac3e8c21a00 RBX: 0000000000000a06 RCX: e3465ac3e8c21a00 [ 221.922647][ C1] RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: 0000000000000001 [ 221.930648][ C1] RBP: ffffc9000475fbc0 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d [ 221.938641][ C1] R10: dffffc0000000000 R11: fffffbfff1c9509e R12: dffffc0000000000 [ 221.946656][ C1] R13: ffffc9000475fcc8 R14: ffff888028285ea0 R15: 1ffff920008ebf68 [ 221.954698][ C1] ? _raw_spin_unlock+0x40/0x40 [ 221.959605][ C1] do_wait+0x914/0xaf0 [ 221.963769][ C1] kernel_wait4+0x1af/0x270 [ 221.968307][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 221.973547][ C1] ? __ia32_sys_waitid+0xc0/0xc0 [ 221.978526][ C1] ? kernel_waitid+0x360/0x360 [ 221.983361][ C1] __x64_sys_wait4+0x134/0x1e0 [ 221.988154][ C1] ? __remove_hrtimer+0x470/0x470 [ 221.993212][ C1] ? kernel_wait+0x170/0x170 [ 221.997883][ C1] ? lock_chain_count+0x20/0x20 [ 222.002789][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 222.008028][ C1] do_syscall_64+0x55/0xb0 [ 222.012470][ C1] ? clear_bhb_loop+0x40/0x90 [ 222.017172][ C1] ? clear_bhb_loop+0x40/0x90 [ 222.021876][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 222.027820][ C1] RIP: 0033:0x7fd8aea13eb3 [ 222.032271][ C1] Code: fe ff e9 41 ff ff ff 31 c9 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 80 3d d1 b1 07 00 00 49 89 ca 74 14 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5d c3 0f 1f 40 00 48 83 ec 28 89 54 24 14 48 [ 222.051923][ C1] RSP: 002b:00007ffd092ed418 EFLAGS: 00000202 ORIG_RAX: 000000000000003d [ 222.060368][ C1] RAX: ffffffffffffffda RBX: 000000000001c6d7 RCX: 00007fd8aea13eb3 [ 222.068381][ C1] RDX: 0000000040000001 RSI: 00007ffd092ed43c RDI: 00000000ffffffff [ 222.076376][ C1] RBP: 00000000000016e8 R08: 0000000000000074 R09: 0000000000745d1e [ 222.084367][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd092ed43c [ 222.092358][ C1] R13: 00007ffd092ed470 R14: 00007ffd092ed450 R15: 000000000000000e [ 222.100394][ C1]