Warning: Permanently added '10.128.1.135' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 302.250288][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 302.257316][ C1] (detected by 1, t=10502 jiffies, g=3685, q=6) [ 302.263654][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294967356-4294956854), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 302.277278][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g3685 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 302.288388][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 302.298448][ C1] rcu: RCU grace-period kthread stack dump: [ 302.304333][ C1] task:rcu_preempt state:R running task stack:25688 pid: 15 ppid: 2 flags:0x00004000 [ 302.315290][ C1] Call Trace: [ 302.318579][ C1] [ 302.321526][ C1] __schedule+0x12c4/0x45b0 [ 302.326177][ C1] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 302.332217][ C1] ? rcu_is_watching+0x11/0xa0 [ 302.337091][ C1] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 302.343304][ C1] ? release_firmware_map_entry+0x190/0x190 [ 302.349318][ C1] ? preempt_schedule_irq+0xec/0x1c0 [ 302.354739][ C1] preempt_schedule_irq+0xf7/0x1c0 [ 302.359862][ C1] ? __cond_resched+0x20/0x20 [ 302.365009][ C1] ? trace_hardirqs_off_finish+0x9d/0x210 [ 302.370846][ C1] irqentry_exit+0x53/0x80 [ 302.375343][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 302.381330][ C1] RIP: 0010:preempt_count_add+0x32/0x180 [ 302.387043][ C1] Code: c7 c0 c0 ff 3e 91 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 e2 00 00 00 83 3d 20 9f e7 0f 00 75 07 <65> 8b 05 1f 0f ab 7e 65 01 1d 18 0f ab 7e 48 c7 c0 c0 ff 3e 91 48 [ 302.406748][ C1] RSP: 0018:ffffc90000d47b50 EFLAGS: 00000246 [ 302.412826][ C1] RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff913eff03 [ 302.420800][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 302.428871][ C1] RBP: ffffc90000d47c90 R08: dffffc0000000000 R09: ffffed1027fc4771 [ 302.436851][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 302.444831][ C1] R13: ffff88813fe23b80 R14: 0000000000000000 R15: dffffc0000000000 [ 302.452836][ C1] schedule+0x114/0x1f0 [ 302.457019][ C1] schedule_timeout+0x1b9/0x300 [ 302.461892][ C1] ? console_conditional_schedule+0x40/0x40 [ 302.467807][ C1] ? update_process_times+0x200/0x200 [ 302.473471][ C1] ? prepare_to_swait_event+0x321/0x340 [ 302.479113][ C1] rcu_gp_fqs_loop+0x2bf/0x1080 [ 302.484107][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 302.489317][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 302.494552][ C1] ? rcu_gp_init+0xdae/0x1140 [ 302.499235][ C1] ? rcu_gp_init+0x1140/0x1140 [ 302.504007][ C1] ? finish_swait+0xc5/0x1d0 [ 302.508605][ C1] rcu_gp_kthread+0xa4/0x360 [ 302.513203][ C1] ? _raw_spin_unlock+0x40/0x40 [ 302.518065][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 302.523212][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 302.529124][ C1] ? __kthread_parkme+0x15c/0x1c0 [ 302.534225][ C1] kthread+0x3f6/0x4f0 [ 302.538324][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 302.543558][ C1] ? kthread_blkcg+0xd0/0xd0 [ 302.548153][ C1] ret_from_fork+0x1f/0x30 [ 302.552615][ C1] [ 302.555639][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 302.561956][ C1] Sending NMI from CPU 1 to CPUs 0: [ 302.567254][ C0] NMI backtrace for cpu 0 [ 302.567264][ C0] CPU: 0 PID: 3522 Comm: syz-executor220 Not tainted 5.15.159-syzkaller #0 [ 302.567279][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 302.567287][ C0] RIP: 0010:__rcu_read_unlock+0x65/0x100 [ 302.567308][ C0] Code: b6 04 23 84 c0 75 69 41 89 6d 00 85 ed 75 1d 4d 8d be 40 04 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 75 78 41 83 3f 00 <75> 23 42 0f b6 04 23 84 c0 75 52 41 8b 45 00 3d 00 00 00 40 73 0b [ 302.567319][ C0] RSP: 0018:ffffc90000007da8 EFLAGS: 00000046 [ 302.567332][ C0] RAX: 0000000000000000 RBX: 1ffff1100f01b087 RCX: ffff8880780d8000 [ 302.567342][ C0] RDX: 0000000080010001 RSI: ffffffff8ad8f660 RDI: ffffffff8ad8f620 [ 302.567351][ C0] RBP: 0000000000000000 R08: ffffffff814f8faf R09: fffffbfff1f7f019 [ 302.567361][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 302.567370][ C0] R13: ffff8880780d843c R14: ffff8880780d8000 R15: ffff8880780d8440 [ 302.567380][ C0] FS: 00007ffa697516c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 302.567393][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 302.567410][ C0] CR2: 00007ffa69750e40 CR3: 0000000023c1b000 CR4: 00000000003506f0 [ 302.567422][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 302.567430][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 302.567439][ C0] Call Trace: [ 302.567445][ C0] [ 302.567451][ C0] ? nmi_cpu_backtrace+0x39f/0x4a0 [ 302.567557][ C0] ? read_lock_is_recursive+0x10/0x10 [ 302.567573][ C0] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 302.567588][ C0] ? unknown_nmi_error+0xd0/0xd0 [ 302.567645][ C0] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 302.567674][ C0] ? nmi_handle+0xf7/0x370 [ 302.567689][ C0] ? __rcu_read_unlock+0x65/0x100 [ 302.567702][ C0] ? default_do_nmi+0x62/0x150 [ 302.567718][ C0] ? exc_nmi+0xa8/0x100 [ 302.567732][ C0] ? end_repeat_nmi+0x16/0x31 [ 302.567748][ C0] ? group_send_sig_info+0x11f/0x2d0 [ 302.567796][ C0] ? __rcu_read_unlock+0x65/0x100 [ 302.567811][ C0] ? __rcu_read_unlock+0x65/0x100 [ 302.567825][ C0] ? __rcu_read_unlock+0x65/0x100 [ 302.567840][ C0] [ 302.567844][ C0] [ 302.567850][ C0] group_send_sig_info+0x18e/0x2d0 [ 302.567867][ C0] ? lockdep_assert_task_sighand_held+0x280/0x280 [ 302.567883][ C0] ? __do_softirq+0x77e/0x93a [ 302.567901][ C0] do_bpf_send_signal+0x81/0x150 [ 302.567935][ C0] irq_work_run_list+0x20b/0x370 [ 302.567952][ C0] ? irq_work_run+0xe0/0xe0 [ 302.567965][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 302.567983][ C0] ? sched_clock_cpu+0x15/0x3b0 [ 302.568023][ C0] irq_work_run+0x63/0xe0 [ 302.568036][ C0] __sysvec_irq_work+0x9a/0x250 [ 302.568050][ C0] sysvec_irq_work+0x89/0xb0 [ 302.568065][ C0] [ 302.568069][ C0] [ 302.568073][ C0] asm_sysvec_irq_work+0x16/0x20 [ 302.568087][ C0] RIP: 0010:finish_lock_switch+0x91/0x100 [ 302.568102][ C0] Code: 45 31 c9 68 b7 90 59 81 e8 cc 1a 09 00 48 83 c4 08 4c 89 ff e8 60 da fe ff 66 90 4c 89 ff e8 f6 ea cd 08 e8 d1 4b 2d 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87 [ 302.568113][ C0] RSP: 0018:ffffc90002ce7698 EFLAGS: 00000286 [ 302.568125][ C0] RAX: c912400c68919f00 RBX: ffff8880780dbbb4 RCX: ffffffff913eff03 [ 302.568135][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f680 [ 302.568145][ C0] RBP: ffffc90002ce7710 R08: ffffffff8186dcf0 R09: ffffed1017347469 [ 302.568156][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 302.568165][ C0] R13: 1ffff11017347613 R14: ffff8880b9a3b098 R15: ffff8880b9a3a340 [ 302.568178][ C0] ? trace_hardirqs_on+0x30/0x80 [ 302.568199][ C0] finish_task_switch+0x134/0x630 [ 302.568216][ C0] ? __switch_to_asm+0x34/0x60 [ 302.568232][ C0] __schedule+0x12cc/0x45b0 [ 302.568258][ C0] ? release_firmware_map_entry+0x190/0x190 [ 302.568277][ C0] ? do_raw_spin_unlock+0x137/0x8b0 [ 302.568293][ C0] schedule+0x11b/0x1f0 [ 302.568307][ C0] futex_wait_queue_me+0x25b/0x480 [ 302.568355][ C0] futex_wait+0x2f8/0x740 [ 302.568375][ C0] ? do_futex+0x1810/0x1810 [ 302.568389][ C0] ? rcu_is_watching+0x11/0xa0 [ 302.568410][ C0] ? reacquire_held_locks+0x660/0x660 [ 302.568424][ C0] ? __lock_acquire+0x1295/0x1ff0 [ 302.568446][ C0] do_futex+0x1414/0x1810 [ 302.568464][ C0] ? __lock_acquire+0x1295/0x1ff0 [ 302.568483][ C0] ? futex_exit_release+0x1e0/0x1e0 [ 302.568503][ C0] ? read_lock_is_recursive+0x10/0x10 [ 302.568517][ C0] ? __context_tracking_exit+0x4c/0x80 [ 302.568533][ C0] ? __lock_acquire+0x1ff0/0x1ff0 [ 302.568548][ C0] __se_sys_futex+0x407/0x490 [ 302.568566][ C0] ? __x64_sys_futex+0xf0/0xf0 [ 302.568583][ C0] ? syscall_enter_from_user_mode+0x2e/0x240 [ 302.568598][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 302.568613][ C0] ? __x64_sys_futex+0x1d/0xf0 [ 302.568629][ C0] do_syscall_64+0x3b/0xb0 [ 302.568642][ C0] ? clear_bhb_loop+0x15/0x70 [ 302.568655][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 302.568669][ C0] RIP: 0033:0x7ffa697905d9 [ 302.568682][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 [ 302.568692][ C0] RSP: 002b:00007ffa69751228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 302.568705][ C0] RAX: ffffffffffffffda RBX: 00007ffa6981a308 RCX: 00007ffa697905d9 [ 302.568715][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ffa6981a308 [ 302.568724][ C0] RBP: 00007ffa6981a300 R08: 00007ffa697516c0 R09: 00007ffa697516c0 [ 302.568733][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa697e7074 [ 302.568742][ C0] R13: b635773f06ebbeef R14: 656c6c616b7a7973 R15: 00007ffe8444ce18 [ 302.568758][ C0] [ 302.568764][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.509 msecs